/test/mjsunit/asm/embenchen/copy.js
JavaScript | 5980 lines | 5052 code | 436 blank | 492 comment | 1295 complexity | d14fe9815c97ee7af1c46f6f360d7830 MD5 | raw file
Possible License(s): BSD-3-Clause
- // Copyright 2014 the V8 project authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- var EXPECTED_OUTPUT = 'sum:8930\n';
- var Module = {
- arguments: [1],
- print: function(x) {Module.printBuffer += x + '\n';},
- preRun: [function() {Module.printBuffer = ''}],
- postRun: [function() {
- assertEquals(EXPECTED_OUTPUT, Module.printBuffer);
- }],
- };
- // The Module object: Our interface to the outside world. We import
- // and export values on it, and do the work to get that through
- // closure compiler if necessary. There are various ways Module can be used:
- // 1. Not defined. We create it here
- // 2. A function parameter, function(Module) { ..generated code.. }
- // 3. pre-run appended it, var Module = {}; ..generated code..
- // 4. External script tag defines var Module.
- // We need to do an eval in order to handle the closure compiler
- // case, where this code here is minified but Module was defined
- // elsewhere (e.g. case 4 above). We also need to check if Module
- // already exists (e.g. case 3 above).
- // Note that if you want to run closure, and also to use Module
- // after the generated code, you will need to define var Module = {};
- // before the code. Then that object will be used in the code, and you
- // can continue to use Module afterwards as well.
- var Module;
- if (!Module) Module = (typeof Module !== 'undefined' ? Module : null) || {};
- // Sometimes an existing Module object exists with properties
- // meant to overwrite the default module functionality. Here
- // we collect those properties and reapply _after_ we configure
- // the current environment's defaults to avoid having to be so
- // defensive during initialization.
- var moduleOverrides = {};
- for (var key in Module) {
- if (Module.hasOwnProperty(key)) {
- moduleOverrides[key] = Module[key];
- }
- }
- // The environment setup code below is customized to use Module.
- // *** Environment setup code ***
- var ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function';
- var ENVIRONMENT_IS_WEB = typeof window === 'object';
- var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
- var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
- if (ENVIRONMENT_IS_NODE) {
- // Expose functionality in the same simple way that the shells work
- // Note that we pollute the global namespace here, otherwise we break in node
- if (!Module['print']) Module['print'] = function print(x) {
- process['stdout'].write(x + '\n');
- };
- if (!Module['printErr']) Module['printErr'] = function printErr(x) {
- process['stderr'].write(x + '\n');
- };
- var nodeFS = require('fs');
- var nodePath = require('path');
- Module['read'] = function read(filename, binary) {
- filename = nodePath['normalize'](filename);
- var ret = nodeFS['readFileSync'](filename);
- // The path is absolute if the normalized version is the same as the resolved.
- if (!ret && filename != nodePath['resolve'](filename)) {
- filename = path.join(__dirname, '..', 'src', filename);
- ret = nodeFS['readFileSync'](filename);
- }
- if (ret && !binary) ret = ret.toString();
- return ret;
- };
- Module['readBinary'] = function readBinary(filename) { return Module['read'](filename, true) };
- Module['load'] = function load(f) {
- globalEval(read(f));
- };
- Module['arguments'] = process['argv'].slice(2);
- module['exports'] = Module;
- }
- else if (ENVIRONMENT_IS_SHELL) {
- if (!Module['print']) Module['print'] = print;
- if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not present in v8 or older sm
- if (typeof read != 'undefined') {
- Module['read'] = read;
- } else {
- Module['read'] = function read() { throw 'no read() available (jsc?)' };
- }
- Module['readBinary'] = function readBinary(f) {
- return read(f, 'binary');
- };
- if (typeof scriptArgs != 'undefined') {
- Module['arguments'] = scriptArgs;
- } else if (typeof arguments != 'undefined') {
- Module['arguments'] = arguments;
- }
- this['Module'] = Module;
- eval("if (typeof gc === 'function' && gc.toString().indexOf('[native code]') > 0) var gc = undefined"); // wipe out the SpiderMonkey shell 'gc' function, which can confuse closure (uses it as a minified name, and it is then initted to a non-falsey value unexpectedly)
- }
- else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
- Module['read'] = function read(url) {
- var xhr = new XMLHttpRequest();
- xhr.open('GET', url, false);
- xhr.send(null);
- return xhr.responseText;
- };
- if (typeof arguments != 'undefined') {
- Module['arguments'] = arguments;
- }
- if (typeof console !== 'undefined') {
- if (!Module['print']) Module['print'] = function print(x) {
- console.log(x);
- };
- if (!Module['printErr']) Module['printErr'] = function printErr(x) {
- console.log(x);
- };
- } else {
- // Probably a worker, and without console.log. We can do very little here...
- var TRY_USE_DUMP = false;
- if (!Module['print']) Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "undefined") ? (function(x) {
- dump(x);
- }) : (function(x) {
- // self.postMessage(x); // enable this if you want stdout to be sent as messages
- }));
- }
- if (ENVIRONMENT_IS_WEB) {
- window['Module'] = Module;
- } else {
- Module['load'] = importScripts;
- }
- }
- else {
- // Unreachable because SHELL is dependant on the others
- throw 'Unknown runtime environment. Where are we?';
- }
- function globalEval(x) {
- eval.call(null, x);
- }
- if (!Module['load'] == 'undefined' && Module['read']) {
- Module['load'] = function load(f) {
- globalEval(Module['read'](f));
- };
- }
- if (!Module['print']) {
- Module['print'] = function(){};
- }
- if (!Module['printErr']) {
- Module['printErr'] = Module['print'];
- }
- if (!Module['arguments']) {
- Module['arguments'] = [];
- }
- // *** Environment setup code ***
- // Closure helpers
- Module.print = Module['print'];
- Module.printErr = Module['printErr'];
- // Callbacks
- Module['preRun'] = [];
- Module['postRun'] = [];
- // Merge back in the overrides
- for (var key in moduleOverrides) {
- if (moduleOverrides.hasOwnProperty(key)) {
- Module[key] = moduleOverrides[key];
- }
- }
- // === Auto-generated preamble library stuff ===
- //========================================
- // Runtime code shared with compiler
- //========================================
- var Runtime = {
- stackSave: function () {
- return STACKTOP;
- },
- stackRestore: function (stackTop) {
- STACKTOP = stackTop;
- },
- forceAlign: function (target, quantum) {
- quantum = quantum || 4;
- if (quantum == 1) return target;
- if (isNumber(target) && isNumber(quantum)) {
- return Math.ceil(target/quantum)*quantum;
- } else if (isNumber(quantum) && isPowerOfTwo(quantum)) {
- return '(((' +target + ')+' + (quantum-1) + ')&' + -quantum + ')';
- }
- return 'Math.ceil((' + target + ')/' + quantum + ')*' + quantum;
- },
- isNumberType: function (type) {
- return type in Runtime.INT_TYPES || type in Runtime.FLOAT_TYPES;
- },
- isPointerType: function isPointerType(type) {
- return type[type.length-1] == '*';
- },
- isStructType: function isStructType(type) {
- if (isPointerType(type)) return false;
- if (isArrayType(type)) return true;
- if (/<?\{ ?[^}]* ?\}>?/.test(type)) return true; // { i32, i8 } etc. - anonymous struct types
- // See comment in isStructPointerType()
- return type[0] == '%';
- },
- INT_TYPES: {"i1":0,"i8":0,"i16":0,"i32":0,"i64":0},
- FLOAT_TYPES: {"float":0,"double":0},
- or64: function (x, y) {
- var l = (x | 0) | (y | 0);
- var h = (Math.round(x / 4294967296) | Math.round(y / 4294967296)) * 4294967296;
- return l + h;
- },
- and64: function (x, y) {
- var l = (x | 0) & (y | 0);
- var h = (Math.round(x / 4294967296) & Math.round(y / 4294967296)) * 4294967296;
- return l + h;
- },
- xor64: function (x, y) {
- var l = (x | 0) ^ (y | 0);
- var h = (Math.round(x / 4294967296) ^ Math.round(y / 4294967296)) * 4294967296;
- return l + h;
- },
- getNativeTypeSize: function (type) {
- switch (type) {
- case 'i1': case 'i8': return 1;
- case 'i16': return 2;
- case 'i32': return 4;
- case 'i64': return 8;
- case 'float': return 4;
- case 'double': return 8;
- default: {
- if (type[type.length-1] === '*') {
- return Runtime.QUANTUM_SIZE; // A pointer
- } else if (type[0] === 'i') {
- var bits = parseInt(type.substr(1));
- assert(bits % 8 === 0);
- return bits/8;
- } else {
- return 0;
- }
- }
- }
- },
- getNativeFieldSize: function (type) {
- return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE);
- },
- dedup: function dedup(items, ident) {
- var seen = {};
- if (ident) {
- return items.filter(function(item) {
- if (seen[item[ident]]) return false;
- seen[item[ident]] = true;
- return true;
- });
- } else {
- return items.filter(function(item) {
- if (seen[item]) return false;
- seen[item] = true;
- return true;
- });
- }
- },
- set: function set() {
- var args = typeof arguments[0] === 'object' ? arguments[0] : arguments;
- var ret = {};
- for (var i = 0; i < args.length; i++) {
- ret[args[i]] = 0;
- }
- return ret;
- },
- STACK_ALIGN: 8,
- getAlignSize: function (type, size, vararg) {
- // we align i64s and doubles on 64-bit boundaries, unlike x86
- if (!vararg && (type == 'i64' || type == 'double')) return 8;
- if (!type) return Math.min(size, 8); // align structures internally to 64 bits
- return Math.min(size || (type ? Runtime.getNativeFieldSize(type) : 0), Runtime.QUANTUM_SIZE);
- },
- calculateStructAlignment: function calculateStructAlignment(type) {
- type.flatSize = 0;
- type.alignSize = 0;
- var diffs = [];
- var prev = -1;
- var index = 0;
- type.flatIndexes = type.fields.map(function(field) {
- index++;
- var size, alignSize;
- if (Runtime.isNumberType(field) || Runtime.isPointerType(field)) {
- size = Runtime.getNativeTypeSize(field); // pack char; char; in structs, also char[X]s.
- alignSize = Runtime.getAlignSize(field, size);
- } else if (Runtime.isStructType(field)) {
- if (field[1] === '0') {
- // this is [0 x something]. When inside another structure like here, it must be at the end,
- // and it adds no size
- // XXX this happens in java-nbody for example... assert(index === type.fields.length, 'zero-length in the middle!');
- size = 0;
- if (Types.types[field]) {
- alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
- } else {
- alignSize = type.alignSize || QUANTUM_SIZE;
- }
- } else {
- size = Types.types[field].flatSize;
- alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
- }
- } else if (field[0] == 'b') {
- // bN, large number field, like a [N x i8]
- size = field.substr(1)|0;
- alignSize = 1;
- } else if (field[0] === '<') {
- // vector type
- size = alignSize = Types.types[field].flatSize; // fully aligned
- } else if (field[0] === 'i') {
- // illegal integer field, that could not be legalized because it is an internal structure field
- // it is ok to have such fields, if we just use them as markers of field size and nothing more complex
- size = alignSize = parseInt(field.substr(1))/8;
- assert(size % 1 === 0, 'cannot handle non-byte-size field ' + field);
- } else {
- assert(false, 'invalid type for calculateStructAlignment');
- }
- if (type.packed) alignSize = 1;
- type.alignSize = Math.max(type.alignSize, alignSize);
- var curr = Runtime.alignMemory(type.flatSize, alignSize); // if necessary, place this on aligned memory
- type.flatSize = curr + size;
- if (prev >= 0) {
- diffs.push(curr-prev);
- }
- prev = curr;
- return curr;
- });
- if (type.name_ && type.name_[0] === '[') {
- // arrays have 2 elements, so we get the proper difference. then we scale here. that way we avoid
- // allocating a potentially huge array for [999999 x i8] etc.
- type.flatSize = parseInt(type.name_.substr(1))*type.flatSize/2;
- }
- type.flatSize = Runtime.alignMemory(type.flatSize, type.alignSize);
- if (diffs.length == 0) {
- type.flatFactor = type.flatSize;
- } else if (Runtime.dedup(diffs).length == 1) {
- type.flatFactor = diffs[0];
- }
- type.needsFlattening = (type.flatFactor != 1);
- return type.flatIndexes;
- },
- generateStructInfo: function (struct, typeName, offset) {
- var type, alignment;
- if (typeName) {
- offset = offset || 0;
- type = (typeof Types === 'undefined' ? Runtime.typeInfo : Types.types)[typeName];
- if (!type) return null;
- if (type.fields.length != struct.length) {
- printErr('Number of named fields must match the type for ' + typeName + ': possibly duplicate struct names. Cannot return structInfo');
- return null;
- }
- alignment = type.flatIndexes;
- } else {
- var type = { fields: struct.map(function(item) { return item[0] }) };
- alignment = Runtime.calculateStructAlignment(type);
- }
- var ret = {
- __size__: type.flatSize
- };
- if (typeName) {
- struct.forEach(function(item, i) {
- if (typeof item === 'string') {
- ret[item] = alignment[i] + offset;
- } else {
- // embedded struct
- var key;
- for (var k in item) key = k;
- ret[key] = Runtime.generateStructInfo(item[key], type.fields[i], alignment[i]);
- }
- });
- } else {
- struct.forEach(function(item, i) {
- ret[item[1]] = alignment[i];
- });
- }
- return ret;
- },
- dynCall: function (sig, ptr, args) {
- if (args && args.length) {
- if (!args.splice) args = Array.prototype.slice.call(args);
- args.splice(0, 0, ptr);
- return Module['dynCall_' + sig].apply(null, args);
- } else {
- return Module['dynCall_' + sig].call(null, ptr);
- }
- },
- functionPointers: [],
- addFunction: function (func) {
- for (var i = 0; i < Runtime.functionPointers.length; i++) {
- if (!Runtime.functionPointers[i]) {
- Runtime.functionPointers[i] = func;
- return 2*(1 + i);
- }
- }
- throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.';
- },
- removeFunction: function (index) {
- Runtime.functionPointers[(index-2)/2] = null;
- },
- getAsmConst: function (code, numArgs) {
- // code is a constant string on the heap, so we can cache these
- if (!Runtime.asmConstCache) Runtime.asmConstCache = {};
- var func = Runtime.asmConstCache[code];
- if (func) return func;
- var args = [];
- for (var i = 0; i < numArgs; i++) {
- args.push(String.fromCharCode(36) + i); // $0, $1 etc
- }
- var source = Pointer_stringify(code);
- if (source[0] === '"') {
- // tolerate EM_ASM("..code..") even though EM_ASM(..code..) is correct
- if (source.indexOf('"', 1) === source.length-1) {
- source = source.substr(1, source.length-2);
- } else {
- // something invalid happened, e.g. EM_ASM("..code($0)..", input)
- abort('invalid EM_ASM input |' + source + '|. Please use EM_ASM(..code..) (no quotes) or EM_ASM({ ..code($0).. }, input) (to input values)');
- }
- }
- try {
- var evalled = eval('(function(' + args.join(',') + '){ ' + source + ' })'); // new Function does not allow upvars in node
- } catch(e) {
- Module.printErr('error in executing inline EM_ASM code: ' + e + ' on: \n\n' + source + '\n\nwith args |' + args + '| (make sure to use the right one out of EM_ASM, EM_ASM_ARGS, etc.)');
- throw e;
- }
- return Runtime.asmConstCache[code] = evalled;
- },
- warnOnce: function (text) {
- if (!Runtime.warnOnce.shown) Runtime.warnOnce.shown = {};
- if (!Runtime.warnOnce.shown[text]) {
- Runtime.warnOnce.shown[text] = 1;
- Module.printErr(text);
- }
- },
- funcWrappers: {},
- getFuncWrapper: function (func, sig) {
- assert(sig);
- if (!Runtime.funcWrappers[func]) {
- Runtime.funcWrappers[func] = function dynCall_wrapper() {
- return Runtime.dynCall(sig, func, arguments);
- };
- }
- return Runtime.funcWrappers[func];
- },
- UTF8Processor: function () {
- var buffer = [];
- var needed = 0;
- this.processCChar = function (code) {
- code = code & 0xFF;
- if (buffer.length == 0) {
- if ((code & 0x80) == 0x00) { // 0xxxxxxx
- return String.fromCharCode(code);
- }
- buffer.push(code);
- if ((code & 0xE0) == 0xC0) { // 110xxxxx
- needed = 1;
- } else if ((code & 0xF0) == 0xE0) { // 1110xxxx
- needed = 2;
- } else { // 11110xxx
- needed = 3;
- }
- return '';
- }
- if (needed) {
- buffer.push(code);
- needed--;
- if (needed > 0) return '';
- }
- var c1 = buffer[0];
- var c2 = buffer[1];
- var c3 = buffer[2];
- var c4 = buffer[3];
- var ret;
- if (buffer.length == 2) {
- ret = String.fromCharCode(((c1 & 0x1F) << 6) | (c2 & 0x3F));
- } else if (buffer.length == 3) {
- ret = String.fromCharCode(((c1 & 0x0F) << 12) | ((c2 & 0x3F) << 6) | (c3 & 0x3F));
- } else {
- // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
- var codePoint = ((c1 & 0x07) << 18) | ((c2 & 0x3F) << 12) |
- ((c3 & 0x3F) << 6) | (c4 & 0x3F);
- ret = String.fromCharCode(
- Math.floor((codePoint - 0x10000) / 0x400) + 0xD800,
- (codePoint - 0x10000) % 0x400 + 0xDC00);
- }
- buffer.length = 0;
- return ret;
- }
- this.processJSString = function processJSString(string) {
- /* TODO: use TextEncoder when present,
- var encoder = new TextEncoder();
- encoder['encoding'] = "utf-8";
- var utf8Array = encoder['encode'](aMsg.data);
- */
- string = unescape(encodeURIComponent(string));
- var ret = [];
- for (var i = 0; i < string.length; i++) {
- ret.push(string.charCodeAt(i));
- }
- return ret;
- }
- },
- getCompilerSetting: function (name) {
- throw 'You must build with -s RETAIN_COMPILER_SETTINGS=1 for Runtime.getCompilerSetting or emscripten_get_compiler_setting to work';
- },
- stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|0;STACKTOP = (((STACKTOP)+7)&-8); return ret; },
- staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + size)|0;STATICTOP = (((STATICTOP)+7)&-8); return ret; },
- dynamicAlloc: function (size) { var ret = DYNAMICTOP;DYNAMICTOP = (DYNAMICTOP + size)|0;DYNAMICTOP = (((DYNAMICTOP)+7)&-8); if (DYNAMICTOP >= TOTAL_MEMORY) enlargeMemory();; return ret; },
- alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quantum ? quantum : 8))*(quantum ? quantum : 8); return ret; },
- makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? ((+((low>>>0)))+((+((high>>>0)))*(+4294967296))) : ((+((low>>>0)))+((+((high|0)))*(+4294967296)))); return ret; },
- GLOBAL_BASE: 8,
- QUANTUM_SIZE: 4,
- __dummy__: 0
- }
- Module['Runtime'] = Runtime;
- //========================================
- // Runtime essentials
- //========================================
- var __THREW__ = 0; // Used in checking for thrown exceptions.
- var ABORT = false; // whether we are quitting the application. no code should run after this. set in exit() and abort()
- var EXITSTATUS = 0;
- var undef = 0;
- // tempInt is used for 32-bit signed values or smaller. tempBigInt is used
- // for 32-bit unsigned values or more than 32 bits. TODO: audit all uses of tempInt
- var tempValue, tempInt, tempBigInt, tempInt2, tempBigInt2, tempPair, tempBigIntI, tempBigIntR, tempBigIntS, tempBigIntP, tempBigIntD, tempDouble, tempFloat;
- var tempI64, tempI64b;
- var tempRet0, tempRet1, tempRet2, tempRet3, tempRet4, tempRet5, tempRet6, tempRet7, tempRet8, tempRet9;
- function assert(condition, text) {
- if (!condition) {
- abort('Assertion failed: ' + text);
- }
- }
- var globalScope = this;
- // C calling interface. A convenient way to call C functions (in C files, or
- // defined with extern "C").
- //
- // Note: LLVM optimizations can inline and remove functions, after which you will not be
- // able to call them. Closure can also do so. To avoid that, add your function to
- // the exports using something like
- //
- // -s EXPORTED_FUNCTIONS='["_main", "_myfunc"]'
- //
- // @param ident The name of the C function (note that C++ functions will be name-mangled - use extern "C")
- // @param returnType The return type of the function, one of the JS types 'number', 'string' or 'array' (use 'number' for any C pointer, and
- // 'array' for JavaScript arrays and typed arrays; note that arrays are 8-bit).
- // @param argTypes An array of the types of arguments for the function (if there are no arguments, this can be ommitted). Types are as in returnType,
- // except that 'array' is not possible (there is no way for us to know the length of the array)
- // @param args An array of the arguments to the function, as native JS values (as in returnType)
- // Note that string arguments will be stored on the stack (the JS string will become a C string on the stack).
- // @return The return value, as a native JS value (as in returnType)
- function ccall(ident, returnType, argTypes, args) {
- return ccallFunc(getCFunc(ident), returnType, argTypes, args);
- }
- Module["ccall"] = ccall;
- // Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
- function getCFunc(ident) {
- try {
- var func = Module['_' + ident]; // closure exported function
- if (!func) func = eval('_' + ident); // explicit lookup
- } catch(e) {
- }
- assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimizations or closure removed it?)');
- return func;
- }
- // Internal function that does a C call using a function, not an identifier
- function ccallFunc(func, returnType, argTypes, args) {
- var stack = 0;
- function toC(value, type) {
- if (type == 'string') {
- if (value === null || value === undefined || value === 0) return 0; // null string
- value = intArrayFromString(value);
- type = 'array';
- }
- if (type == 'array') {
- if (!stack) stack = Runtime.stackSave();
- var ret = Runtime.stackAlloc(value.length);
- writeArrayToMemory(value, ret);
- return ret;
- }
- return value;
- }
- function fromC(value, type) {
- if (type == 'string') {
- return Pointer_stringify(value);
- }
- assert(type != 'array');
- return value;
- }
- var i = 0;
- var cArgs = args ? args.map(function(arg) {
- return toC(arg, argTypes[i++]);
- }) : [];
- var ret = fromC(func.apply(null, cArgs), returnType);
- if (stack) Runtime.stackRestore(stack);
- return ret;
- }
- // Returns a native JS wrapper for a C function. This is similar to ccall, but
- // returns a function you can call repeatedly in a normal way. For example:
- //
- // var my_function = cwrap('my_c_function', 'number', ['number', 'number']);
- // alert(my_function(5, 22));
- // alert(my_function(99, 12));
- //
- function cwrap(ident, returnType, argTypes) {
- var func = getCFunc(ident);
- return function() {
- return ccallFunc(func, returnType, argTypes, Array.prototype.slice.call(arguments));
- }
- }
- Module["cwrap"] = cwrap;
- // Sets a value in memory in a dynamic way at run-time. Uses the
- // type data. This is the same as makeSetValue, except that
- // makeSetValue is done at compile-time and generates the needed
- // code then, whereas this function picks the right code at
- // run-time.
- // Note that setValue and getValue only do *aligned* writes and reads!
- // Note that ccall uses JS types as for defining types, while setValue and
- // getValue need LLVM types ('i8', 'i32') - this is a lower-level operation
- function setValue(ptr, value, type, noSafe) {
- type = type || 'i8';
- if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
- switch(type) {
- case 'i1': HEAP8[(ptr)]=value; break;
- case 'i8': HEAP8[(ptr)]=value; break;
- case 'i16': HEAP16[((ptr)>>1)]=value; break;
- case 'i32': HEAP32[((ptr)>>2)]=value; break;
- case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= (+1) ? (tempDouble > (+0) ? ((Math_min((+(Math_floor((tempDouble)/(+4294967296)))), (+4294967295)))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/(+4294967296))))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break;
- case 'float': HEAPF32[((ptr)>>2)]=value; break;
- case 'double': HEAPF64[((ptr)>>3)]=value; break;
- default: abort('invalid type for setValue: ' + type);
- }
- }
- Module['setValue'] = setValue;
- // Parallel to setValue.
- function getValue(ptr, type, noSafe) {
- type = type || 'i8';
- if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
- switch(type) {
- case 'i1': return HEAP8[(ptr)];
- case 'i8': return HEAP8[(ptr)];
- case 'i16': return HEAP16[((ptr)>>1)];
- case 'i32': return HEAP32[((ptr)>>2)];
- case 'i64': return HEAP32[((ptr)>>2)];
- case 'float': return HEAPF32[((ptr)>>2)];
- case 'double': return HEAPF64[((ptr)>>3)];
- default: abort('invalid type for setValue: ' + type);
- }
- return null;
- }
- Module['getValue'] = getValue;
- var ALLOC_NORMAL = 0; // Tries to use _malloc()
- var ALLOC_STACK = 1; // Lives for the duration of the current function call
- var ALLOC_STATIC = 2; // Cannot be freed
- var ALLOC_DYNAMIC = 3; // Cannot be freed except through sbrk
- var ALLOC_NONE = 4; // Do not allocate
- Module['ALLOC_NORMAL'] = ALLOC_NORMAL;
- Module['ALLOC_STACK'] = ALLOC_STACK;
- Module['ALLOC_STATIC'] = ALLOC_STATIC;
- Module['ALLOC_DYNAMIC'] = ALLOC_DYNAMIC;
- Module['ALLOC_NONE'] = ALLOC_NONE;
- // allocate(): This is for internal use. You can use it yourself as well, but the interface
- // is a little tricky (see docs right below). The reason is that it is optimized
- // for multiple syntaxes to save space in generated code. So you should
- // normally not use allocate(), and instead allocate memory using _malloc(),
- // initialize it with setValue(), and so forth.
- // @slab: An array of data, or a number. If a number, then the size of the block to allocate,
- // in *bytes* (note that this is sometimes confusing: the next parameter does not
- // affect this!)
- // @types: Either an array of types, one for each byte (or 0 if no type at that position),
- // or a single type which is used for the entire block. This only matters if there
- // is initial data - if @slab is a number, then this does not matter at all and is
- // ignored.
- // @allocator: How to allocate memory, see ALLOC_*
- function allocate(slab, types, allocator, ptr) {
- var zeroinit, size;
- if (typeof slab === 'number') {
- zeroinit = true;
- size = slab;
- } else {
- zeroinit = false;
- size = slab.length;
- }
- var singleType = typeof types === 'string' ? types : null;
- var ret;
- if (allocator == ALLOC_NONE) {
- ret = ptr;
- } else {
- ret = [_malloc, Runtime.stackAlloc, Runtime.staticAlloc, Runtime.dynamicAlloc][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType ? 1 : types.length));
- }
- if (zeroinit) {
- var ptr = ret, stop;
- assert((ret & 3) == 0);
- stop = ret + (size & ~3);
- for (; ptr < stop; ptr += 4) {
- HEAP32[((ptr)>>2)]=0;
- }
- stop = ret + size;
- while (ptr < stop) {
- HEAP8[((ptr++)|0)]=0;
- }
- return ret;
- }
- if (singleType === 'i8') {
- if (slab.subarray || slab.slice) {
- HEAPU8.set(slab, ret);
- } else {
- HEAPU8.set(new Uint8Array(slab), ret);
- }
- return ret;
- }
- var i = 0, type, typeSize, previousType;
- while (i < size) {
- var curr = slab[i];
- if (typeof curr === 'function') {
- curr = Runtime.getFunctionIndex(curr);
- }
- type = singleType || types[i];
- if (type === 0) {
- i++;
- continue;
- }
- if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later
- setValue(ret+i, curr, type);
- // no need to look up size unless type changes, so cache it
- if (previousType !== type) {
- typeSize = Runtime.getNativeTypeSize(type);
- previousType = type;
- }
- i += typeSize;
- }
- return ret;
- }
- Module['allocate'] = allocate;
- function Pointer_stringify(ptr, /* optional */ length) {
- // TODO: use TextDecoder
- // Find the length, and check for UTF while doing so
- var hasUtf = false;
- var t;
- var i = 0;
- while (1) {
- t = HEAPU8[(((ptr)+(i))|0)];
- if (t >= 128) hasUtf = true;
- else if (t == 0 && !length) break;
- i++;
- if (length && i == length) break;
- }
- if (!length) length = i;
- var ret = '';
- if (!hasUtf) {
- var MAX_CHUNK = 1024; // split up into chunks, because .apply on a huge string can overflow the stack
- var curr;
- while (length > 0) {
- curr = String.fromCharCode.apply(String, HEAPU8.subarray(ptr, ptr + Math.min(length, MAX_CHUNK)));
- ret = ret ? ret + curr : curr;
- ptr += MAX_CHUNK;
- length -= MAX_CHUNK;
- }
- return ret;
- }
- var utf8 = new Runtime.UTF8Processor();
- for (i = 0; i < length; i++) {
- t = HEAPU8[(((ptr)+(i))|0)];
- ret += utf8.processCChar(t);
- }
- return ret;
- }
- Module['Pointer_stringify'] = Pointer_stringify;
- // Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
- // a copy of that string as a Javascript String object.
- function UTF16ToString(ptr) {
- var i = 0;
- var str = '';
- while (1) {
- var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
- if (codeUnit == 0)
- return str;
- ++i;
- // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
- str += String.fromCharCode(codeUnit);
- }
- }
- Module['UTF16ToString'] = UTF16ToString;
- // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
- // null-terminated and encoded in UTF16LE form. The copy will require at most (str.length*2+1)*2 bytes of space in the HEAP.
- function stringToUTF16(str, outPtr) {
- for(var i = 0; i < str.length; ++i) {
- // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
- var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
- HEAP16[(((outPtr)+(i*2))>>1)]=codeUnit;
- }
- // Null-terminate the pointer to the HEAP.
- HEAP16[(((outPtr)+(str.length*2))>>1)]=0;
- }
- Module['stringToUTF16'] = stringToUTF16;
- // Given a pointer 'ptr' to a null-terminated UTF32LE-encoded string in the emscripten HEAP, returns
- // a copy of that string as a Javascript String object.
- function UTF32ToString(ptr) {
- var i = 0;
- var str = '';
- while (1) {
- var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
- if (utf32 == 0)
- return str;
- ++i;
- // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
- if (utf32 >= 0x10000) {
- var ch = utf32 - 0x10000;
- str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
- } else {
- str += String.fromCharCode(utf32);
- }
- }
- }
- Module['UTF32ToString'] = UTF32ToString;
- // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
- // null-terminated and encoded in UTF32LE form. The copy will require at most (str.length+1)*4 bytes of space in the HEAP,
- // but can use less, since str.length does not return the number of characters in the string, but the number of UTF-16 code units in the string.
- function stringToUTF32(str, outPtr) {
- var iChar = 0;
- for(var iCodeUnit = 0; iCodeUnit < str.length; ++iCodeUnit) {
- // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
- var codeUnit = str.charCodeAt(iCodeUnit); // possibly a lead surrogate
- if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
- var trailSurrogate = str.charCodeAt(++iCodeUnit);
- codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
- }
- HEAP32[(((outPtr)+(iChar*4))>>2)]=codeUnit;
- ++iChar;
- }
- // Null-terminate the pointer to the HEAP.
- HEAP32[(((outPtr)+(iChar*4))>>2)]=0;
- }
- Module['stringToUTF32'] = stringToUTF32;
- function demangle(func) {
- var i = 3;
- // params, etc.
- var basicTypes = {
- 'v': 'void',
- 'b': 'bool',
- 'c': 'char',
- 's': 'short',
- 'i': 'int',
- 'l': 'long',
- 'f': 'float',
- 'd': 'double',
- 'w': 'wchar_t',
- 'a': 'signed char',
- 'h': 'unsigned char',
- 't': 'unsigned short',
- 'j': 'unsigned int',
- 'm': 'unsigned long',
- 'x': 'long long',
- 'y': 'unsigned long long',
- 'z': '...'
- };
- var subs = [];
- var first = true;
- function dump(x) {
- //return;
- if (x) Module.print(x);
- Module.print(func);
- var pre = '';
- for (var a = 0; a < i; a++) pre += ' ';
- Module.print (pre + '^');
- }
- function parseNested() {
- i++;
- if (func[i] === 'K') i++; // ignore const
- var parts = [];
- while (func[i] !== 'E') {
- if (func[i] === 'S') { // substitution
- i++;
- var next = func.indexOf('_', i);
- var num = func.substring(i, next) || 0;
- parts.push(subs[num] || '?');
- i = next+1;
- continue;
- }
- if (func[i] === 'C') { // constructor
- parts.push(parts[parts.length-1]);
- i += 2;
- continue;
- }
- var size = parseInt(func.substr(i));
- var pre = size.toString().length;
- if (!size || !pre) { i--; break; } // counter i++ below us
- var curr = func.substr(i + pre, size);
- parts.push(curr);
- subs.push(curr);
- i += pre + size;
- }
- i++; // skip E
- return parts;
- }
- function parse(rawList, limit, allowVoid) { // main parser
- limit = limit || Infinity;
- var ret = '', list = [];
- function flushList() {
- return '(' + list.join(', ') + ')';
- }
- var name;
- if (func[i] === 'N') {
- // namespaced N-E
- name = parseNested().join('::');
- limit--;
- if (limit === 0) return rawList ? [name] : name;
- } else {
- // not namespaced
- if (func[i] === 'K' || (first && func[i] === 'L')) i++; // ignore const and first 'L'
- var size = parseInt(func.substr(i));
- if (size) {
- var pre = size.toString().length;
- name = func.substr(i + pre, size);
- i += pre + size;
- }
- }
- first = false;
- if (func[i] === 'I') {
- i++;
- var iList = parse(true);
- var iRet = parse(true, 1, true);
- ret += iRet[0] + ' ' + name + '<' + iList.join(', ') + '>';
- } else {
- ret = name;
- }
- paramLoop: while (i < func.length && limit-- > 0) {
- //dump('paramLoop');
- var c = func[i++];
- if (c in basicTypes) {
- list.push(basicTypes[c]);
- } else {
- switch (c) {
- case 'P': list.push(parse(true, 1, true)[0] + '*'); break; // pointer
- case 'R': list.push(parse(true, 1, true)[0] + '&'); break; // reference
- case 'L': { // literal
- i++; // skip basic type
- var end = func.indexOf('E', i);
- var size = end - i;
- list.push(func.substr(i, size));
- i += size + 2; // size + 'EE'
- break;
- }
- case 'A': { // array
- var size = parseInt(func.substr(i));
- i += size.toString().length;
- if (func[i] !== '_') throw '?';
- i++; // skip _
- list.push(parse(true, 1, true)[0] + ' [' + size + ']');
- break;
- }
- case 'E': break paramLoop;
- default: ret += '?' + c; break paramLoop;
- }
- }
- }
- if (!allowVoid && list.length === 1 && list[0] === 'void') list = []; // avoid (void)
- if (rawList) {
- if (ret) {
- list.push(ret + '?');
- }
- return list;
- } else {
- return ret + flushList();
- }
- }
- try {
- // Special-case the entry point, since its name differs from other name mangling.
- if (func == 'Object._main' || func == '_main') {
- return 'main()';
- }
- if (typeof func === 'number') func = Pointer_stringify(func);
- if (func[0] !== '_') return func;
- if (func[1] !== '_') return func; // C function
- if (func[2] !== 'Z') return func;
- switch (func[3]) {
- case 'n': return 'operator new()';
- case 'd': return 'operator delete()';
- }
- return parse();
- } catch(e) {
- return func;
- }
- }
- function demangleAll(text) {
- return text.replace(/__Z[\w\d_]+/g, function(x) { var y = demangle(x); return x === y ? x : (x + ' [' + y + ']') });
- }
- function stackTrace() {
- var stack = new Error().stack;
- return stack ? demangleAll(stack) : '(no stack trace available)'; // Stack trace is not available at least on IE10 and Safari 6.
- }
- // Memory management
- var PAGE_SIZE = 4096;
- function alignMemoryPage(x) {
- return (x+4095)&-4096;
- }
- var HEAP;
- var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
- var STATIC_BASE = 0, STATICTOP = 0, staticSealed = false; // static area
- var STACK_BASE = 0, STACKTOP = 0, STACK_MAX = 0; // stack area
- var DYNAMIC_BASE = 0, DYNAMICTOP = 0; // dynamic area handled by sbrk
- function enlargeMemory() {
- abort('Cannot enlarge memory arrays. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value ' + TOTAL_MEMORY + ', (2) compile with ALLOW_MEMORY_GROWTH which adjusts the size at runtime but prevents some optimizations, or (3) set Module.TOTAL_MEMORY before the program runs.');
- }
- var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880;
- var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 134217728;
- var FAST_MEMORY = Module['FAST_MEMORY'] || 2097152;
- var totalMemory = 4096;
- while (totalMemory < TOTAL_MEMORY || totalMemory < 2*TOTAL_STACK) {
- if (totalMemory < 16*1024*1024) {
- totalMemory *= 2;
- } else {
- totalMemory += 16*1024*1024
- }
- }
- if (totalMemory !== TOTAL_MEMORY) {
- Module.printErr('increasing TOTAL_MEMORY to ' + totalMemory + ' to be more reasonable');
- TOTAL_MEMORY = totalMemory;
- }
- // Initialize the runtime's memory
- // check for full engine support (use string 'subarray' to avoid closure compiler confusion)
- assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']),
- 'JS engine does not provide full typed array support');
- var buffer = new ArrayBuffer(TOTAL_MEMORY);
- HEAP8 = new Int8Array(buffer);
- HEAP16 = new Int16Array(buffer);
- HEAP32 = new Int32Array(buffer);
- HEAPU8 = new Uint8Array(buffer);
- HEAPU16 = new Uint16Array(buffer);
- HEAPU32 = new Uint32Array(buffer);
- HEAPF32 = new Float32Array(buffer);
- HEAPF64 = new Float64Array(buffer);
- // Endianness check (note: assumes compiler arch was little-endian)
- HEAP32[0] = 255;
- assert(HEAPU8[0] === 255 && HEAPU8[3] === 0, 'Typed arrays 2 must be run on a little-endian system');
- Module['HEAP'] = HEAP;
- Module['HEAP8'] = HEAP8;
- Module['HEAP16'] = HEAP16;
- Module['HEAP32'] = HEAP32;
- Module['HEAPU8'] = HEAPU8;
- Module['HEAPU16'] = HEAPU16;
- Module['HEAPU32'] = HEAPU32;
- Module['HEAPF32'] = HEAPF32;
- Module['HEAPF64'] = HEAPF64;
- function callRuntimeCallbacks(callbacks) {
- while(callbacks.length > 0) {
- var callback = callbacks.shift();
- if (typeof callback == 'function') {
- callback();
- continue;
- }
- var func = callback.func;
- if (typeof func === 'number') {
- if (callback.arg === undefined) {
- Runtime.dynCall('v', func);
- } else {
- Runtime.dynCall('vi', func, [callback.arg]);
- }
- } else {
- func(callback.arg === undefined ? null : callback.arg);
- }
- }
- }
- var __ATPRERUN__ = []; // functions called before the runtime is initialized
- var __ATINIT__ = []; // functions called during startup
- var __ATMAIN__ = []; // functions called when main() is to be run
- var __ATEXIT__ = []; // functions called during shutdown
- var __ATPOSTRUN__ = []; // functions called after the runtime has exited
- var runtimeInitialized = false;
- function preRun() {
- // compatibility - merge in anything from Module['preRun'] at this time
- if (Module['preRun']) {
- if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
- while (Module['preRun'].length) {
- addOnPreRun(Module['preRun'].shift());
- }
- }
- callRuntimeCallbacks(__ATPRERUN__);
- }
- function ensureInitRuntime() {
- if (runtimeInitialized) return;
- runtimeInitialized = true;
- callRuntimeCallbacks(__ATINIT__);
- }
- function preMain() {
- callRuntimeCallbacks(__ATMAIN__);
- }
- function exitRuntime() {
- callRuntimeCallbacks(__ATEXIT__);
- }
- function postRun() {
- // compatibility - merge in anything from Module['postRun'] at this time
- if (Module['postRun']) {
- if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
- while (Module['postRun'].length) {
- addOnPostRun(Module['postRun'].shift());
- }
- }
- callRuntimeCallbacks(__ATPOSTRUN__);
- }
- function addOnPreRun(cb) {
- __ATPRERUN__.unshift(cb);
- }
- Module['addOnPreRun'] = Module.addOnPreRun = addOnPreRun;
- function addOnInit(cb) {
- __ATINIT__.unshift(cb);
- }
- Module['addOnInit'] = Module.addOnInit = addOnInit;
- function addOnPreMain(cb) {
- __ATMAIN__.unshift(cb);
- }
- Module['addOnPreMain'] = Module.addOnPreMain = addOnPreMain;
- function addOnExit(cb) {
- __ATEXIT__.unshift(cb);
- }
- Module['addOnExit'] = Module.addOnExit = addOnExit;
- function addOnPostRun(cb) {
- __ATPOSTRUN__.unshift(cb);
- }
- Module['addOnPostRun'] = Module.addOnPostRun = addOnPostRun;
- // Tools
- // This processes a JS string into a C-line array of numbers, 0-terminated.
- // For LLVM-originating strings, see parser.js:parseLLVMString function
- function intArrayFromString(stringy, dontAddNull, length /* optional */) {
- var ret = (new Runtime.UTF8Processor()).processJSString(stringy);
- if (length) {
- ret.length = length;
- }
- if (!dontAddNull) {
- ret.push(0);
- }
- return ret;
- }
- Module['intArrayFromString'] = intArrayFromString;
- function intArrayToString(array) {
- var ret = [];
- for (var i = 0; i < array.length; i++) {
- var chr = array[i];
- if (chr > 0xFF) {
- chr &= 0xFF;
- }
- ret.push(String.fromCharCode(chr));
- }
- return ret.join('');
- }
- Module['intArrayToString'] = intArrayToString;
- // Write a Javascript array to somewhere in the heap
- function writeStringToMemory(string, buffer, dontAddNull) {
- var array = intArrayFromString(string, dontAddNull);
- var i = 0;
- while (i < array.length) {
- var chr = array[i];
- HEAP8[(((buffer)+(i))|0)]=chr;
- i = i + 1;
- }
- }
- Module['writeStringToMemory'] = writeStringToMemory;
- function writeArrayToMemory(array, buffer) {
- for (var i = 0; i < array.length; i++) {
- HEAP8[(((buffer)+(i))|0)]=array[i];
- }
- }
- Module['writeArrayToMemory'] = writeArrayToMemory;
- function writeAsciiToMemory(str, buffer, dontAddNull) {
- for (var i = 0; i < str.length; i++) {
- HEAP8[(((buffer)+(i))|0)]=str.charCodeAt(i);
- }
- if (!dontAddNull) HEAP8[(((buffer)+(str.length))|0)]=0;
- }
- Module['writeAsciiToMemory'] = writeAsciiToMemory;
- function unSign(value, bits, ignore) {
- if (value >= 0) {
- return value;
- }
- return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts
- : Math.pow(2, bits) + value;
- }
- function reSign(value, bits, ignore) {
- if (value <= 0) {
- return value;
- }
- var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32
- : Math.pow(2, bits-1);
- if (value >= half && (bits <= 32 || value > half)) { // for huge values, we can hit the precision limit and always get true here. so don't do that
- // but, in general there is no perfect solution here. With 64-bit ints, we get rounding and errors
- // TODO: In i64 mode 1, resign the two parts separately and safely
- value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts
- }
- return value;
- }
- // check for imul support, and also for correctness ( https://bugs.webkit.org/show_bug.cgi?id=126345 )
- if (!Math['imul'] || Math['imul'](0xffffffff, 5) !== -5) Math['imul'] = function imul(a, b) {
- var ah = a >>> 16;
- var al = a & 0xffff;
- var bh = b >>> 16;
- var bl = b & 0xffff;
- return (al*bl + ((ah*bl + al*bh) << 16))|0;
- };
- Math.imul = Math['imul'];
- var Math_abs = Math.abs;
- var Math_cos = Math.cos;
- var Math_sin = Math.sin;
- var Math_tan = Math.tan;
- var Math_acos = Math.acos;
- var Math_asin = Math.asin;
- var Math_atan = Math.atan;
- var Math_atan2 = Math.atan2;
- var Math_exp = Math.exp;
- var Math_log = Math.log;
- var Math_sqrt = Math.sqrt;
- var Math_ceil = Math.ceil;
- var Math_floor = Math.floor;
- var Math_pow = Math.pow;
- var Math_imul = Math.imul;
- var Math_fround = Math.fround;
- var Math_min = Math.min;
- // A counter of dependencies for calling run(). If we need to
- // do asynchronous work before running, increment this and
- // decrement it. Incrementing must happen in a place like
- // PRE_RUN_ADDITIONS (used by emcc to add file preloading).
- // Note that you can add dependencies in preRun, even though
- // it happens right before run - run will be postponed until
- // the dependencies are met.
- var runDependencies = 0;
- var runDependencyWatcher = null;
- var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
- function addRunDependency(id) {
- runDependencies++;
- if (Module['monitorRunDependencies']) {
- Module['monitorRunDependencies'](runDependencies);
- }
- }
- Module['addRunDependency'] = addRunDependency;
- function removeRunDependency(id) {
- runDependencies--;
- if (Module['monitorRunDependencies']) {
- Module['monitorRunDependencies'](runDependencies);
- }
- if (runDependencies == 0) {
- if (runDependencyWatcher !== null) {
- clearInterval(runDependencyWatcher);
- runDependencyWatcher = null;
- }
- if (dependenciesFulfilled) {
- var callback = dependenciesFulfilled;
- dependenciesFulfilled = null;
- callback(); // can add another dependenciesFulfilled
- }
- }
- }
- Module['removeRunDependency'] = removeRunDependency;
- Module["preloadedImages"] = {}; // maps url to image data
- Module["preloadedAudios"] = {}; // maps url to audio data
- var memoryInitializer = null;
- // === Body ===
- STATIC_BASE = 8;
- STATICTOP = STATIC_BASE + Runtime.alignMemory(27);
- /* global initializers */ __ATINIT__.push();
- /* memory initializer */ allocate([101,114,114,111,114,58,32,37,100,92,110,0,0,0,0,0,115,117,109,58,37,100,10,0], "i8", ALLOC_NONE, Runtime.GLOBAL_BASE);
- var tempDoublePtr = Runtime.alignMemory(allocate(12, "i8", ALLOC_STATIC), 8);
- assert(tempDoublePtr % 8 == 0);
- function copyTempFloat(ptr) { // functions, because inlining this code increases code size too much
- HEAP8[tempDoublePtr] = HEAP8[ptr];
- HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
- HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
- HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
- }
- function copyTempDouble(ptr) {
- HEAP8[tempDoublePtr] = HEAP8[ptr];
- HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
- HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
- HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
- HEAP8[tempDoublePtr+4] = HEAP8[ptr+4];
- HEAP8[tempDoublePtr+5] = HEAP8[ptr+5];
- HEAP8[tempDoublePtr+6] = HEAP8[ptr+6];
- HEAP8[tempDoublePtr+7] = HEAP8[ptr+7];
- }
- function _malloc(bytes) {
- /* Over-allocate to make sure it is byte-aligned by 8.
- * This will leak memory, but this is only the dummy
- * implementation (replaced by dlmalloc normally) so
- * not an issue.
- */
- var ptr = Runtime.dynamicAlloc(bytes + 8);
- return (ptr+8) & 0xFFFFFFF8;
- }
- Module["_malloc"] = _malloc;
- var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXEC:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENOTBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENFILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLINK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBADE:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,ENOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALREADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRNOTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQUOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86};
- var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or directory",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such device or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",10:"No children",11:"No more processes",12:"Not enough core",13:"Permission denied",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File exists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"No space left on device",29:"Illegal seek",30:"Read only file system",31:"Too many links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result not representable",35:"File locking deadlock error",36:"File or path name too long",37:"No record locks available",38:"Function not implemented",39:"Directory not empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identifier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol driver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Invalid exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams resources",64:"Machine is not on the network",65:"Package not installed",66:"The object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmount error",70:"Communication error on send",71:"Protocol error",72:"Multihop attempted",73:"Cross mount point (not really error)",74:"Trying to read unreadable message",75:"Value too large for defined data type",76:"Given log. name not unique",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can access a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to exec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too many users",88:"Socket operation on non-socket",89:"Destination address required",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not available",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported",96:"Protocol family not supported",97:"Address family not supported by protocol family",98:"Address already in use",99:"Address not available",100:"Network interface is not configured",101:"Network is unreachable",102:"Connection reset by network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer space available",106:"Socket is already connected",107:"Socket is not connected",108:"Can't send after socket shutdown",109:"Too many references",110:"Connection timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachable",114:"Socket already connected",115:"Connection already in progress",116:"Stale file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operation canceled",130:"Previous owner died",131:"State not recoverable"};
- var ___errno_state=0;function ___setErrNo(value) {
- // For convenient setting and returning of errno.
- HEAP32[((___errno_state)>>2)]=value;
- return value;
- }
- var TTY={ttys:[],init:function () {
- // https://github.com/kripken/emscripten/pull/1555
- // if (ENVIRONMENT_IS_NODE) {
- // // currently, FS.init does not distinguish if process.stdin is a file or TTY
- // // device, it always assumes it's a TTY device. because of this, we're forcing
- // // process.stdin to UTF8 encoding to at least make stdin reading compatible
- // // with text files until FS.init can be refactored.
- // process['stdin']['setEncoding']('utf8');
- // }
- },shutdown:function () {
- // https://github.com/kripken/emscripten/pull/1555
- // if (ENVIRONMENT_IS_NODE) {
- // // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
- // // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
- // // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
- // // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
- // // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
- // process['stdin']['pause']();
- // }
- },register:function (dev, ops) {
- TTY.ttys[dev] = { input: [], output: [], ops: ops };
- FS.registerDevice(dev, TTY.stream_ops);
- },stream_ops:{open:function (stream) {
- var tty = TTY.ttys[stream.node.rdev];
- if (!tty) {
- throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
- }
- stream.tty = tty;
- stream.seekable = false;
- },close:function (stream) {
- // flush any pending line data
- if (stream.tty.output.length) {
- stream.tty.ops.put_char(stream.tty, 10);
- }
- },read:function (stream, buffer, offset, length, pos /* ignored */) {
- if (!stream.tty || !stream.tty.ops.get_char) {
- throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
- }
- var bytesRead = 0;
- for (var i = 0; i < length; i++) {
- var result;
- try {
- result = stream.tty.ops.get_char(stream.tty);
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES.EIO);
- }
- if (result === undefined && bytesRead === 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
- }
- if (result === null || result === undefined) break;
- bytesRead++;
- buffer[offset+i] = result;
- }
- if (bytesRead) {
- stream.node.timestamp = Date.now();
- }
- return bytesRead;
- },write:function (stream, buffer, offset, length, pos) {
- if (!stream.tty || !stream.tty.ops.put_char) {
- throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
- }
- for (var i = 0; i < length; i++) {
- try {
- stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES.EIO);
- }
- }
- if (length) {
- stream.node.timestamp = Date.now();
- }
- return i;
- }},default_tty_ops:{get_char:function (tty) {
- if (!tty.input.length) {
- var result = null;
- if (ENVIRONMENT_IS_NODE) {
- result = process['stdin']['read']();
- if (!result) {
- if (process['stdin']['_readableState'] && process['stdin']['_readableState']['ended']) {
- return null; // EOF
- }
- return undefined; // no data available
- }
- } else if (typeof window != 'undefined' &&
- typeof window.prompt == 'function') {
- // Browser.
- result = window.prompt('Input: '); // returns null on cancel
- if (result !== null) {
- result += '\n';
- }
- } else if (typeof readline == 'function') {
- // Command line.
- result = readline();
- if (result !== null) {
- result += '\n';
- }
- }
- if (!result) {
- return null;
- }
- tty.input = intArrayFromString(result, true);
- }
- return tty.input.shift();
- },put_char:function (tty, val) {
- if (val === null || val === 10) {
- Module['print'](tty.output.join(''));
- tty.output = [];
- } else {
- tty.output.push(TTY.utf8.processCChar(val));
- }
- }},default_tty1_ops:{put_char:function (tty, val) {
- if (val === null || val === 10) {
- Module['printErr'](tty.output.join(''));
- tty.output = [];
- } else {
- tty.output.push(TTY.utf8.processCChar(val));
- }
- }}};
- var MEMFS={ops_table:null,CONTENT_OWNING:1,CONTENT_FLEXIBLE:2,CONTENT_FIXED:3,mount:function (mount) {
- return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
- },createNode:function (parent, name, mode, dev) {
- if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
- // no supported
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- if (!MEMFS.ops_table) {
- MEMFS.ops_table = {
- dir: {
- node: {
- getattr: MEMFS.node_ops.getattr,
- setattr: MEMFS.node_ops.setattr,
- lookup: MEMFS.node_ops.lookup,
- mknod: MEMFS.node_ops.mknod,
- rename: MEMFS.node_ops.rename,
- unlink: MEMFS.node_ops.unlink,
- rmdir: MEMFS.node_ops.rmdir,
- readdir: MEMFS.node_ops.readdir,
- symlink: MEMFS.node_ops.symlink
- },
- stream: {
- llseek: MEMFS.stream_ops.llseek
- }
- },
- file: {
- node: {
- getattr: MEMFS.node_ops.getattr,
- setattr: MEMFS.node_ops.setattr
- },
- stream: {
- llseek: MEMFS.stream_ops.llseek,
- read: MEMFS.stream_ops.read,
- write: MEMFS.stream_ops.write,
- allocate: MEMFS.stream_ops.allocate,
- mmap: MEMFS.stream_ops.mmap
- }
- },
- link: {
- node: {
- getattr: MEMFS.node_ops.getattr,
- setattr: MEMFS.node_ops.setattr,
- readlink: MEMFS.node_ops.readlink
- },
- stream: {}
- },
- chrdev: {
- node: {
- getattr: MEMFS.node_ops.getattr,
- setattr: MEMFS.node_ops.setattr
- },
- stream: FS.chrdev_stream_ops
- },
- };
- }
- var node = FS.createNode(parent, name, mode, dev);
- if (FS.isDir(node.mode)) {
- node.node_ops = MEMFS.ops_table.dir.node;
- node.stream_ops = MEMFS.ops_table.dir.stream;
- node.contents = {};
- } else if (FS.isFile(node.mode)) {
- node.node_ops = MEMFS.ops_table.file.node;
- node.stream_ops = MEMFS.ops_table.file.stream;
- node.contents = [];
- node.contentMode = MEMFS.CONTENT_FLEXIBLE;
- } else if (FS.isLink(node.mode)) {
- node.node_ops = MEMFS.ops_table.link.node;
- node.stream_ops = MEMFS.ops_table.link.stream;
- } else if (FS.isChrdev(node.mode)) {
- node.node_ops = MEMFS.ops_table.chrdev.node;
- node.stream_ops = MEMFS.ops_table.chrdev.stream;
- }
- node.timestamp = Date.now();
- // add the new node to the parent
- if (parent) {
- parent.contents[name] = node;
- }
- return node;
- },ensureFlexible:function (node) {
- if (node.contentMode !== MEMFS.CONTENT_FLEXIBLE) {
- var contents = node.contents;
- node.contents = Array.prototype.slice.call(contents);
- node.contentMode = MEMFS.CONTENT_FLEXIBLE;
- }
- },node_ops:{getattr:function (node) {
- var attr = {};
- // device numbers reuse inode numbers.
- attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
- attr.ino = node.id;
- attr.mode = node.mode;
- attr.nlink = 1;
- attr.uid = 0;
- attr.gid = 0;
- attr.rdev = node.rdev;
- if (FS.isDir(node.mode)) {
- attr.size = 4096;
- } else if (FS.isFile(node.mode)) {
- attr.size = node.contents.length;
- } else if (FS.isLink(node.mode)) {
- attr.size = node.link.length;
- } else {
- attr.size = 0;
- }
- attr.atime = new Date(node.timestamp);
- attr.mtime = new Date(node.timestamp);
- attr.ctime = new Date(node.timestamp);
- // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
- // but this is not required by the standard.
- attr.blksize = 4096;
- attr.blocks = Math.ceil(attr.size / attr.blksize);
- return attr;
- },setattr:function (node, attr) {
- if (attr.mode !== undefined) {
- node.mode = attr.mode;
- }
- if (attr.timestamp !== undefined) {
- node.timestamp = attr.timestamp;
- }
- if (attr.size !== undefined) {
- MEMFS.ensureFlexible(node);
- var contents = node.contents;
- if (attr.size < contents.length) contents.length = attr.size;
- else while (attr.size > contents.length) contents.push(0);
- }
- },lookup:function (parent, name) {
- throw FS.genericErrors[ERRNO_CODES.ENOENT];
- },mknod:function (parent, name, mode, dev) {
- return MEMFS.createNode(parent, name, mode, dev);
- },rename:function (old_node, new_dir, new_name) {
- // if we're overwriting a directory at new_name, make sure it's empty.
- if (FS.isDir(old_node.mode)) {
- var new_node;
- try {
- new_node = FS.lookupNode(new_dir, new_name);
- } catch (e) {
- }
- if (new_node) {
- for (var i in new_node.contents) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
- }
- }
- }
- // do the internal rewiring
- delete old_node.parent.contents[old_node.name];
- old_node.name = new_name;
- new_dir.contents[new_name] = old_node;
- old_node.parent = new_dir;
- },unlink:function (parent, name) {
- delete parent.contents[name];
- },rmdir:function (parent, name) {
- var node = FS.lookupNode(parent, name);
- for (var i in node.contents) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
- }
- delete parent.contents[name];
- },readdir:function (node) {
- var entries = ['.', '..']
- for (var key in node.contents) {
- if (!node.contents.hasOwnProperty(key)) {
- continue;
- }
- entries.push(key);
- }
- return entries;
- },symlink:function (parent, newname, oldpath) {
- var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0);
- node.link = oldpath;
- return node;
- },readlink:function (node) {
- if (!FS.isLink(node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- return node.link;
- }},stream_ops:{read:function (stream, buffer, offset, length, position) {
- var contents = stream.node.contents;
- if (position >= contents.length)
- return 0;
- var size = Math.min(contents.length - position, length);
- assert(size >= 0);
- if (size > 8 && contents.subarray) { // non-trivial, and typed array
- buffer.set(contents.subarray(position, position + size), offset);
- } else
- {
- for (var i = 0; i < size; i++) {
- buffer[offset + i] = contents[position + i];
- }
- }
- return size;
- },write:function (stream, buffer, offset, length, position, canOwn) {
- var node = stream.node;
- node.timestamp = Date.now();
- var contents = node.contents;
- if (length && contents.length === 0 && position === 0 && buffer.subarray) {
- // just replace it with the new data
- if (canOwn && offset === 0) {
- node.contents = buffer; // this could be a subarray of Emscripten HEAP, or allocated from some other source.
- node.contentMode = (buffer.buffer === HEAP8.buffer) ? MEMFS.CONTENT_OWNING : MEMFS.CONTENT_FIXED;
- } else {
- node.contents = new Uint8Array(buffer.subarray(offset, offset+length));
- node.contentMode = MEMFS.CONTENT_FIXED;
- }
- return length;
- }
- MEMFS.ensureFlexible(node);
- var contents = node.contents;
- while (contents.length < position) contents.push(0);
- for (var i = 0; i < length; i++) {
- contents[position + i] = buffer[offset + i];
- }
- return length;
- },llseek:function (stream, offset, whence) {
- var position = offset;
- if (whence === 1) { // SEEK_CUR.
- position += stream.position;
- } else if (whence === 2) { // SEEK_END.
- if (FS.isFile(stream.node.mode)) {
- position += stream.node.contents.length;
- }
- }
- if (position < 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- stream.ungotten = [];
- stream.position = position;
- return position;
- },allocate:function (stream, offset, length) {
- MEMFS.ensureFlexible(stream.node);
- var contents = stream.node.contents;
- var limit = offset + length;
- while (limit > contents.length) contents.push(0);
- },mmap:function (stream, buffer, offset, length, position, prot, flags) {
- if (!FS.isFile(stream.node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
- }
- var ptr;
- var allocated;
- var contents = stream.node.contents;
- // Only make a new copy when MAP_PRIVATE is specified.
- if ( !(flags & 2) &&
- (contents.buffer === buffer || contents.buffer === buffer.buffer) ) {
- // We can't emulate MAP_SHARED when the file is not backed by the buffer
- // we're mapping to (e.g. the HEAP buffer).
- allocated = false;
- ptr = contents.byteOffset;
- } else {
- // Try to avoid unnecessary slices.
- if (position > 0 || position + length < contents.length) {
- if (contents.subarray) {
- contents = contents.subarray(position, position + length);
- } else {
- contents = Array.prototype.slice.call(contents, position, position + length);
- }
- }
- allocated = true;
- ptr = _malloc(length);
- if (!ptr) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOMEM);
- }
- buffer.set(contents, ptr);
- }
- return { ptr: ptr, allocated: allocated };
- }}};
- var IDBFS={dbs:{},indexedDB:function () {
- return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
- },DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function (mount) {
- // reuse all of the core MEMFS functionality
- return MEMFS.mount.apply(null, arguments);
- },syncfs:function (mount, populate, callback) {
- IDBFS.getLocalSet(mount, function(err, local) {
- if (err) return callback(err);
- IDBFS.getRemoteSet(mount, function(err, remote) {
- if (err) return callback(err);
- var src = populate ? remote : local;
- var dst = populate ? local : remote;
- IDBFS.reconcile(src, dst, callback);
- });
- });
- },getDB:function (name, callback) {
- // check the cache first
- var db = IDBFS.dbs[name];
- if (db) {
- return callback(null, db);
- }
- var req;
- try {
- req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION);
- } catch (e) {
- return callback(e);
- }
- req.onupgradeneeded = function(e) {
- var db = e.target.result;
- var transaction = e.target.transaction;
- var fileStore;
- if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) {
- fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME);
- } else {
- fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME);
- }
- fileStore.createIndex('timestamp', 'timestamp', { unique: false });
- };
- req.onsuccess = function() {
- db = req.result;
- // add to the cache
- IDBFS.dbs[name] = db;
- callback(null, db);
- };
- req.onerror = function() {
- callback(this.error);
- };
- },getLocalSet:function (mount, callback) {
- var entries = {};
- function isRealDir(p) {
- return p !== '.' && p !== '..';
- };
- function toAbsolute(root) {
- return function(p) {
- return PATH.join2(root, p);
- }
- };
- var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint));
- while (check.length) {
- var path = check.pop();
- var stat;
- try {
- stat = FS.stat(path);
- } catch (e) {
- return callback(e);
- }
- if (FS.isDir(stat.mode)) {
- check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbsolute(path)));
- }
- entries[path] = { timestamp: stat.mtime };
- }
- return callback(null, { type: 'local', entries: entries });
- },getRemoteSet:function (mount, callback) {
- var entries = {};
- IDBFS.getDB(mount.mountpoint, function(err, db) {
- if (err) return callback(err);
- var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly');
- transaction.onerror = function() { callback(this.error); };
- var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
- var index = store.index('timestamp');
- index.openKeyCursor().onsuccess = function(event) {
- var cursor = event.target.result;
- if (!cursor) {
- return callback(null, { type: 'remote', db: db, entries: entries });
- }
- entries[cursor.primaryKey] = { timestamp: cursor.key };
- cursor.continue();
- };
- });
- },loadLocalEntry:function (path, callback) {
- var stat, node;
- try {
- var lookup = FS.lookupPath(path);
- node = lookup.node;
- stat = FS.stat(path);
- } catch (e) {
- return callback(e);
- }
- if (FS.isDir(stat.mode)) {
- return callback(null, { timestamp: stat.mtime, mode: stat.mode });
- } else if (FS.isFile(stat.mode)) {
- return callback(null, { timestamp: stat.mtime, mode: stat.mode, contents: node.contents });
- } else {
- return callback(new Error('node type not supported'));
- }
- },storeLocalEntry:function (path, entry, callback) {
- try {
- if (FS.isDir(entry.mode)) {
- FS.mkdir(path, entry.mode);
- } else if (FS.isFile(entry.mode)) {
- FS.writeFile(path, entry.contents, { encoding: 'binary', canOwn: true });
- } else {
- return callback(new Error('node type not supported'));
- }
- FS.utime(path, entry.timestamp, entry.timestamp);
- } catch (e) {
- return callback(e);
- }
- callback(null);
- },removeLocalEntry:function (path, callback) {
- try {
- var lookup = FS.lookupPath(path);
- var stat = FS.stat(path);
- if (FS.isDir(stat.mode)) {
- FS.rmdir(path);
- } else if (FS.isFile(stat.mode)) {
- FS.unlink(path);
- }
- } catch (e) {
- return callback(e);
- }
- callback(null);
- },loadRemoteEntry:function (store, path, callback) {
- var req = store.get(path);
- req.onsuccess = function(event) { callback(null, event.target.result); };
- req.onerror = function() { callback(this.error); };
- },storeRemoteEntry:function (store, path, entry, callback) {
- var req = store.put(entry, path);
- req.onsuccess = function() { callback(null); };
- req.onerror = function() { callback(this.error); };
- },removeRemoteEntry:function (store, path, callback) {
- var req = store.delete(path);
- req.onsuccess = function() { callback(null); };
- req.onerror = function() { callback(this.error); };
- },reconcile:function (src, dst, callback) {
- var total = 0;
- var create = [];
- Object.keys(src.entries).forEach(function (key) {
- var e = src.entries[key];
- var e2 = dst.entries[key];
- if (!e2 || e.timestamp > e2.timestamp) {
- create.push(key);
- total++;
- }
- });
- var remove = [];
- Object.keys(dst.entries).forEach(function (key) {
- var e = dst.entries[key];
- var e2 = src.entries[key];
- if (!e2) {
- remove.push(key);
- total++;
- }
- });
- if (!total) {
- return callback(null);
- }
- var errored = false;
- var completed = 0;
- var db = src.type === 'remote' ? src.db : dst.db;
- var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite');
- var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
- function done(err) {
- if (err) {
- if (!done.errored) {
- done.errored = true;
- return callback(err);
- }
- return;
- }
- if (++completed >= total) {
- return callback(null);
- }
- };
- transaction.onerror = function() { done(this.error); };
- // sort paths in ascending order so directory entries are created
- // before the files inside them
- create.sort().forEach(function (path) {
- if (dst.type === 'local') {
- IDBFS.loadRemoteEntry(store, path, function (err, entry) {
- if (err) return done(err);
- IDBFS.storeLocalEntry(path, entry, done);
- });
- } else {
- IDBFS.loadLocalEntry(path, function (err, entry) {
- if (err) return done(err);
- IDBFS.storeRemoteEntry(store, path, entry, done);
- });
- }
- });
- // sort paths in descending order so files are deleted before their
- // parent directories
- remove.sort().reverse().forEach(function(path) {
- if (dst.type === 'local') {
- IDBFS.removeLocalEntry(path, done);
- } else {
- IDBFS.removeRemoteEntry(store, path, done);
- }
- });
- }};
- var NODEFS={isWindows:false,staticInit:function () {
- NODEFS.isWindows = !!process.platform.match(/^win/);
- },mount:function (mount) {
- assert(ENVIRONMENT_IS_NODE);
- return NODEFS.createNode(null, '/', NODEFS.getMode(mount.opts.root), 0);
- },createNode:function (parent, name, mode, dev) {
- if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- var node = FS.createNode(parent, name, mode);
- node.node_ops = NODEFS.node_ops;
- node.stream_ops = NODEFS.stream_ops;
- return node;
- },getMode:function (path) {
- var stat;
- try {
- stat = fs.lstatSync(path);
- if (NODEFS.isWindows) {
- // On Windows, directories return permission bits 'rw-rw-rw-', even though they have 'rwxrwxrwx', so
- // propagate write bits to execute bits.
- stat.mode = stat.mode | ((stat.mode & 146) >> 1);
- }
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- return stat.mode;
- },realPath:function (node) {
- var parts = [];
- while (node.parent !== node) {
- parts.push(node.name);
- node = node.parent;
- }
- parts.push(node.mount.opts.root);
- parts.reverse();
- return PATH.join.apply(null, parts);
- },flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},flagsToPermissionString:function (flags) {
- if (flags in NODEFS.flagsToPermissionStringMap) {
- return NODEFS.flagsToPermissionStringMap[flags];
- } else {
- return flags;
- }
- },node_ops:{getattr:function (node) {
- var path = NODEFS.realPath(node);
- var stat;
- try {
- stat = fs.lstatSync(path);
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- // node.js v0.10.20 doesn't report blksize and blocks on Windows. Fake them with default blksize of 4096.
- // See http://support.microsoft.com/kb/140365
- if (NODEFS.isWindows && !stat.blksize) {
- stat.blksize = 4096;
- }
- if (NODEFS.isWindows && !stat.blocks) {
- stat.blocks = (stat.size+stat.blksize-1)/stat.blksize|0;
- }
- return {
- dev: stat.dev,
- ino: stat.ino,
- mode: stat.mode,
- nlink: stat.nlink,
- uid: stat.uid,
- gid: stat.gid,
- rdev: stat.rdev,
- size: stat.size,
- atime: stat.atime,
- mtime: stat.mtime,
- ctime: stat.ctime,
- blksize: stat.blksize,
- blocks: stat.blocks
- };
- },setattr:function (node, attr) {
- var path = NODEFS.realPath(node);
- try {
- if (attr.mode !== undefined) {
- fs.chmodSync(path, attr.mode);
- // update the common node structure mode as well
- node.mode = attr.mode;
- }
- if (attr.timestamp !== undefined) {
- var date = new Date(attr.timestamp);
- fs.utimesSync(path, date, date);
- }
- if (attr.size !== undefined) {
- fs.truncateSync(path, attr.size);
- }
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },lookup:function (parent, name) {
- var path = PATH.join2(NODEFS.realPath(parent), name);
- var mode = NODEFS.getMode(path);
- return NODEFS.createNode(parent, name, mode);
- },mknod:function (parent, name, mode, dev) {
- var node = NODEFS.createNode(parent, name, mode, dev);
- // create the backing node for this in the fs root as well
- var path = NODEFS.realPath(node);
- try {
- if (FS.isDir(node.mode)) {
- fs.mkdirSync(path, node.mode);
- } else {
- fs.writeFileSync(path, '', { mode: node.mode });
- }
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- return node;
- },rename:function (oldNode, newDir, newName) {
- var oldPath = NODEFS.realPath(oldNode);
- var newPath = PATH.join2(NODEFS.realPath(newDir), newName);
- try {
- fs.renameSync(oldPath, newPath);
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },unlink:function (parent, name) {
- var path = PATH.join2(NODEFS.realPath(parent), name);
- try {
- fs.unlinkSync(path);
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },rmdir:function (parent, name) {
- var path = PATH.join2(NODEFS.realPath(parent), name);
- try {
- fs.rmdirSync(path);
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },readdir:function (node) {
- var path = NODEFS.realPath(node);
- try {
- return fs.readdirSync(path);
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },symlink:function (parent, newName, oldPath) {
- var newPath = PATH.join2(NODEFS.realPath(parent), newName);
- try {
- fs.symlinkSync(oldPath, newPath);
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },readlink:function (node) {
- var path = NODEFS.realPath(node);
- try {
- return fs.readlinkSync(path);
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- }},stream_ops:{open:function (stream) {
- var path = NODEFS.realPath(stream.node);
- try {
- if (FS.isFile(stream.node.mode)) {
- stream.nfd = fs.openSync(path, NODEFS.flagsToPermissionString(stream.flags));
- }
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },close:function (stream) {
- try {
- if (FS.isFile(stream.node.mode) && stream.nfd) {
- fs.closeSync(stream.nfd);
- }
- } catch (e) {
- if (!e.code) throw e;
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- },read:function (stream, buffer, offset, length, position) {
- // FIXME this is terrible.
- var nbuffer = new Buffer(length);
- var res;
- try {
- res = fs.readSync(stream.nfd, nbuffer, 0, length, position);
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- if (res > 0) {
- for (var i = 0; i < res; i++) {
- buffer[offset + i] = nbuffer[i];
- }
- }
- return res;
- },write:function (stream, buffer, offset, length, position) {
- // FIXME this is terrible.
- var nbuffer = new Buffer(buffer.subarray(offset, offset + length));
- var res;
- try {
- res = fs.writeSync(stream.nfd, nbuffer, 0, length, position);
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- return res;
- },llseek:function (stream, offset, whence) {
- var position = offset;
- if (whence === 1) { // SEEK_CUR.
- position += stream.position;
- } else if (whence === 2) { // SEEK_END.
- if (FS.isFile(stream.node.mode)) {
- try {
- var stat = fs.fstatSync(stream.nfd);
- position += stat.size;
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES[e.code]);
- }
- }
- }
- if (position < 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- stream.position = position;
- return position;
- }}};
- var _stdin=allocate(1, "i32*", ALLOC_STATIC);
- var _stdout=allocate(1, "i32*", ALLOC_STATIC);
- var _stderr=allocate(1, "i32*", ALLOC_STATIC);
- function _fflush(stream) {
- // int fflush(FILE *stream);
- // http://pubs.opengroup.org/onlinepubs/000095399/functions/fflush.html
- // we don't currently perform any user-space buffering of data
- }var FS={root:null,mounts:[],devices:[null],streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},handleFSError:function (e) {
- if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace();
- return ___setErrNo(e.errno);
- },lookupPath:function (path, opts) {
- path = PATH.resolve(FS.cwd(), path);
- opts = opts || {};
- var defaults = {
- follow_mount: true,
- recurse_count: 0
- };
- for (var key in defaults) {
- if (opts[key] === undefined) {
- opts[key] = defaults[key];
- }
- }
- if (opts.recurse_count > 8) { // max recursive lookup of 8
- throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
- }
- // split the path
- var parts = PATH.normalizeArray(path.split('/').filter(function(p) {
- return !!p;
- }), false);
- // start at the root
- var current = FS.root;
- var current_path = '/';
- for (var i = 0; i < parts.length; i++) {
- var islast = (i === parts.length-1);
- if (islast && opts.parent) {
- // stop resolving
- break;
- }
- current = FS.lookupNode(current, parts[i]);
- current_path = PATH.join2(current_path, parts[i]);
- // jump to the mount's root node if this is a mountpoint
- if (FS.isMountpoint(current)) {
- if (!islast || (islast && opts.follow_mount)) {
- current = current.mounted.root;
- }
- }
- // by default, lookupPath will not follow a symlink if it is the final path component.
- // setting opts.follow = true will override this behavior.
- if (!islast || opts.follow) {
- var count = 0;
- while (FS.isLink(current.mode)) {
- var link = FS.readlink(current_path);
- current_path = PATH.resolve(PATH.dirname(current_path), link);
- var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count });
- current = lookup.node;
- if (count++ > 40) { // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
- throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
- }
- }
- }
- }
- return { path: current_path, node: current };
- },getPath:function (node) {
- var path;
- while (true) {
- if (FS.isRoot(node)) {
- var mount = node.mount.mountpoint;
- if (!path) return mount;
- return mount[mount.length-1] !== '/' ? mount + '/' + path : mount + path;
- }
- path = path ? node.name + '/' + path : node.name;
- node = node.parent;
- }
- },hashName:function (parentid, name) {
- var hash = 0;
- for (var i = 0; i < name.length; i++) {
- hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
- }
- return ((parentid + hash) >>> 0) % FS.nameTable.length;
- },hashAddNode:function (node) {
- var hash = FS.hashName(node.parent.id, node.name);
- node.name_next = FS.nameTable[hash];
- FS.nameTable[hash] = node;
- },hashRemoveNode:function (node) {
- var hash = FS.hashName(node.parent.id, node.name);
- if (FS.nameTable[hash] === node) {
- FS.nameTable[hash] = node.name_next;
- } else {
- var current = FS.nameTable[hash];
- while (current) {
- if (current.name_next === node) {
- current.name_next = node.name_next;
- break;
- }
- current = current.name_next;
- }
- }
- },lookupNode:function (parent, name) {
- var err = FS.mayLookup(parent);
- if (err) {
- throw new FS.ErrnoError(err);
- }
- var hash = FS.hashName(parent.id, name);
- for (var node = FS.nameTable[hash]; node; node = node.name_next) {
- var nodeName = node.name;
- if (node.parent.id === parent.id && nodeName === name) {
- return node;
- }
- }
- // if we failed to find it in the cache, call into the VFS
- return FS.lookup(parent, name);
- },createNode:function (parent, name, mode, rdev) {
- if (!FS.FSNode) {
- FS.FSNode = function(parent, name, mode, rdev) {
- if (!parent) {
- parent = this; // root node sets parent to itself
- }
- this.parent = parent;
- this.mount = parent.mount;
- this.mounted = null;
- this.id = FS.nextInode++;
- this.name = name;
- this.mode = mode;
- this.node_ops = {};
- this.stream_ops = {};
- this.rdev = rdev;
- };
- FS.FSNode.prototype = {};
- // compatibility
- var readMode = 292 | 73;
- var writeMode = 146;
- // NOTE we must use Object.defineProperties instead of individual calls to
- // Object.defineProperty in order to make closure compiler happy
- Object.defineProperties(FS.FSNode.prototype, {
- read: {
- get: function() { return (this.mode & readMode) === readMode; },
- set: function(val) { val ? this.mode |= readMode : this.mode &= ~readMode; }
- },
- write: {
- get: function() { return (this.mode & writeMode) === writeMode; },
- set: function(val) { val ? this.mode |= writeMode : this.mode &= ~writeMode; }
- },
- isFolder: {
- get: function() { return FS.isDir(this.mode); },
- },
- isDevice: {
- get: function() { return FS.isChrdev(this.mode); },
- },
- });
- }
- var node = new FS.FSNode(parent, name, mode, rdev);
- FS.hashAddNode(node);
- return node;
- },destroyNode:function (node) {
- FS.hashRemoveNode(node);
- },isRoot:function (node) {
- return node === node.parent;
- },isMountpoint:function (node) {
- return !!node.mounted;
- },isFile:function (mode) {
- return (mode & 61440) === 32768;
- },isDir:function (mode) {
- return (mode & 61440) === 16384;
- },isLink:function (mode) {
- return (mode & 61440) === 40960;
- },isChrdev:function (mode) {
- return (mode & 61440) === 8192;
- },isBlkdev:function (mode) {
- return (mode & 61440) === 24576;
- },isFIFO:function (mode) {
- return (mode & 61440) === 4096;
- },isSocket:function (mode) {
- return (mode & 49152) === 49152;
- },flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:function (str) {
- var flags = FS.flagModes[str];
- if (typeof flags === 'undefined') {
- throw new Error('Unknown file open mode: ' + str);
- }
- return flags;
- },flagsToPermissionString:function (flag) {
- var accmode = flag & 2097155;
- var perms = ['r', 'w', 'rw'][accmode];
- if ((flag & 512)) {
- perms += 'w';
- }
- return perms;
- },nodePermissions:function (node, perms) {
- if (FS.ignorePermissions) {
- return 0;
- }
- // return 0 if any user, group or owner bits are set.
- if (perms.indexOf('r') !== -1 && !(node.mode & 292)) {
- return ERRNO_CODES.EACCES;
- } else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) {
- return ERRNO_CODES.EACCES;
- } else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) {
- return ERRNO_CODES.EACCES;
- }
- return 0;
- },mayLookup:function (dir) {
- return FS.nodePermissions(dir, 'x');
- },mayCreate:function (dir, name) {
- try {
- var node = FS.lookupNode(dir, name);
- return ERRNO_CODES.EEXIST;
- } catch (e) {
- }
- return FS.nodePermissions(dir, 'wx');
- },mayDelete:function (dir, name, isdir) {
- var node;
- try {
- node = FS.lookupNode(dir, name);
- } catch (e) {
- return e.errno;
- }
- var err = FS.nodePermissions(dir, 'wx');
- if (err) {
- return err;
- }
- if (isdir) {
- if (!FS.isDir(node.mode)) {
- return ERRNO_CODES.ENOTDIR;
- }
- if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
- return ERRNO_CODES.EBUSY;
- }
- } else {
- if (FS.isDir(node.mode)) {
- return ERRNO_CODES.EISDIR;
- }
- }
- return 0;
- },mayOpen:function (node, flags) {
- if (!node) {
- return ERRNO_CODES.ENOENT;
- }
- if (FS.isLink(node.mode)) {
- return ERRNO_CODES.ELOOP;
- } else if (FS.isDir(node.mode)) {
- if ((flags & 2097155) !== 0 || // opening for write
- (flags & 512)) {
- return ERRNO_CODES.EISDIR;
- }
- }
- return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
- },MAX_OPEN_FDS:4096,nextfd:function (fd_start, fd_end) {
- fd_start = fd_start || 0;
- fd_end = fd_end || FS.MAX_OPEN_FDS;
- for (var fd = fd_start; fd <= fd_end; fd++) {
- if (!FS.streams[fd]) {
- return fd;
- }
- }
- throw new FS.ErrnoError(ERRNO_CODES.EMFILE);
- },getStream:function (fd) {
- return FS.streams[fd];
- },createStream:function (stream, fd_start, fd_end) {
- if (!FS.FSStream) {
- FS.FSStream = function(){};
- FS.FSStream.prototype = {};
- // compatibility
- Object.defineProperties(FS.FSStream.prototype, {
- object: {
- get: function() { return this.node; },
- set: function(val) { this.node = val; }
- },
- isRead: {
- get: function() { return (this.flags & 2097155) !== 1; }
- },
- isWrite: {
- get: function() { return (this.flags & 2097155) !== 0; }
- },
- isAppend: {
- get: function() { return (this.flags & 1024); }
- }
- });
- }
- if (0) {
- // reuse the object
- stream.__proto__ = FS.FSStream.prototype;
- } else {
- var newStream = new FS.FSStream();
- for (var p in stream) {
- newStream[p] = stream[p];
- }
- stream = newStream;
- }
- var fd = FS.nextfd(fd_start, fd_end);
- stream.fd = fd;
- FS.streams[fd] = stream;
- return stream;
- },closeStream:function (fd) {
- FS.streams[fd] = null;
- },getStreamFromPtr:function (ptr) {
- return FS.streams[ptr - 1];
- },getPtrForStream:function (stream) {
- return stream ? stream.fd + 1 : 0;
- },chrdev_stream_ops:{open:function (stream) {
- var device = FS.getDevice(stream.node.rdev);
- // override node's stream ops with the device's
- stream.stream_ops = device.stream_ops;
- // forward the open call
- if (stream.stream_ops.open) {
- stream.stream_ops.open(stream);
- }
- },llseek:function () {
- throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
- }},major:function (dev) {
- return ((dev) >> 8);
- },minor:function (dev) {
- return ((dev) & 0xff);
- },makedev:function (ma, mi) {
- return ((ma) << 8 | (mi));
- },registerDevice:function (dev, ops) {
- FS.devices[dev] = { stream_ops: ops };
- },getDevice:function (dev) {
- return FS.devices[dev];
- },getMounts:function (mount) {
- var mounts = [];
- var check = [mount];
- while (check.length) {
- var m = check.pop();
- mounts.push(m);
- check.push.apply(check, m.mounts);
- }
- return mounts;
- },syncfs:function (populate, callback) {
- if (typeof(populate) === 'function') {
- callback = populate;
- populate = false;
- }
- var mounts = FS.getMounts(FS.root.mount);
- var completed = 0;
- function done(err) {
- if (err) {
- if (!done.errored) {
- done.errored = true;
- return callback(err);
- }
- return;
- }
- if (++completed >= mounts.length) {
- callback(null);
- }
- };
- // sync all mounts
- mounts.forEach(function (mount) {
- if (!mount.type.syncfs) {
- return done(null);
- }
- mount.type.syncfs(mount, populate, done);
- });
- },mount:function (type, opts, mountpoint) {
- var root = mountpoint === '/';
- var pseudo = !mountpoint;
- var node;
- if (root && FS.root) {
- throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
- } else if (!root && !pseudo) {
- var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
- mountpoint = lookup.path; // use the absolute path
- node = lookup.node;
- if (FS.isMountpoint(node)) {
- throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
- }
- if (!FS.isDir(node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
- }
- }
- var mount = {
- type: type,
- opts: opts,
- mountpoint: mountpoint,
- mounts: []
- };
- // create a root node for the fs
- var mountRoot = type.mount(mount);
- mountRoot.mount = mount;
- mount.root = mountRoot;
- if (root) {
- FS.root = mountRoot;
- } else if (node) {
- // set as a mountpoint
- node.mounted = mount;
- // add the new mount to the current mount's children
- if (node.mount) {
- node.mount.mounts.push(mount);
- }
- }
- return mountRoot;
- },unmount:function (mountpoint) {
- var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
- if (!FS.isMountpoint(lookup.node)) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- // destroy the nodes for this mount, and all its child mounts
- var node = lookup.node;
- var mount = node.mounted;
- var mounts = FS.getMounts(mount);
- Object.keys(FS.nameTable).forEach(function (hash) {
- var current = FS.nameTable[hash];
- while (current) {
- var next = current.name_next;
- if (mounts.indexOf(current.mount) !== -1) {
- FS.destroyNode(current);
- }
- current = next;
- }
- });
- // no longer a mountpoint
- node.mounted = null;
- // remove this mount from the child mounts
- var idx = node.mount.mounts.indexOf(mount);
- assert(idx !== -1);
- node.mount.mounts.splice(idx, 1);
- },lookup:function (parent, name) {
- return parent.node_ops.lookup(parent, name);
- },mknod:function (path, mode, dev) {
- var lookup = FS.lookupPath(path, { parent: true });
- var parent = lookup.node;
- var name = PATH.basename(path);
- var err = FS.mayCreate(parent, name);
- if (err) {
- throw new FS.ErrnoError(err);
- }
- if (!parent.node_ops.mknod) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- return parent.node_ops.mknod(parent, name, mode, dev);
- },create:function (path, mode) {
- mode = mode !== undefined ? mode : 438 /* 0666 */;
- mode &= 4095;
- mode |= 32768;
- return FS.mknod(path, mode, 0);
- },mkdir:function (path, mode) {
- mode = mode !== undefined ? mode : 511 /* 0777 */;
- mode &= 511 | 512;
- mode |= 16384;
- return FS.mknod(path, mode, 0);
- },mkdev:function (path, mode, dev) {
- if (typeof(dev) === 'undefined') {
- dev = mode;
- mode = 438 /* 0666 */;
- }
- mode |= 8192;
- return FS.mknod(path, mode, dev);
- },symlink:function (oldpath, newpath) {
- var lookup = FS.lookupPath(newpath, { parent: true });
- var parent = lookup.node;
- var newname = PATH.basename(newpath);
- var err = FS.mayCreate(parent, newname);
- if (err) {
- throw new FS.ErrnoError(err);
- }
- if (!parent.node_ops.symlink) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- return parent.node_ops.symlink(parent, newname, oldpath);
- },rename:function (old_path, new_path) {
- var old_dirname = PATH.dirname(old_path);
- var new_dirname = PATH.dirname(new_path);
- var old_name = PATH.basename(old_path);
- var new_name = PATH.basename(new_path);
- // parents must exist
- var lookup, old_dir, new_dir;
- try {
- lookup = FS.lookupPath(old_path, { parent: true });
- old_dir = lookup.node;
- lookup = FS.lookupPath(new_path, { parent: true });
- new_dir = lookup.node;
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
- }
- // need to be part of the same mount
- if (old_dir.mount !== new_dir.mount) {
- throw new FS.ErrnoError(ERRNO_CODES.EXDEV);
- }
- // source must exist
- var old_node = FS.lookupNode(old_dir, old_name);
- // old path should not be an ancestor of the new path
- var relative = PATH.relative(old_path, new_dirname);
- if (relative.charAt(0) !== '.') {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- // new path should not be an ancestor of the old path
- relative = PATH.relative(new_path, old_dirname);
- if (relative.charAt(0) !== '.') {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
- }
- // see if the new path already exists
- var new_node;
- try {
- new_node = FS.lookupNode(new_dir, new_name);
- } catch (e) {
- // not fatal
- }
- // early out if nothing needs to change
- if (old_node === new_node) {
- return;
- }
- // we'll need to delete the old entry
- var isdir = FS.isDir(old_node.mode);
- var err = FS.mayDelete(old_dir, old_name, isdir);
- if (err) {
- throw new FS.ErrnoError(err);
- }
- // need delete permissions if we'll be overwriting.
- // need create permissions if new doesn't already exist.
- err = new_node ?
- FS.mayDelete(new_dir, new_name, isdir) :
- FS.mayCreate(new_dir, new_name);
- if (err) {
- throw new FS.ErrnoError(err);
- }
- if (!old_dir.node_ops.rename) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
- throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
- }
- // if we are going to change the parent, check write permissions
- if (new_dir !== old_dir) {
- err = FS.nodePermissions(old_dir, 'w');
- if (err) {
- throw new FS.ErrnoError(err);
- }
- }
- // remove the node from the lookup hash
- FS.hashRemoveNode(old_node);
- // do the underlying fs rename
- try {
- old_dir.node_ops.rename(old_node, new_dir, new_name);
- } catch (e) {
- throw e;
- } finally {
- // add the node back to the hash (in case node_ops.rename
- // changed its name)
- FS.hashAddNode(old_node);
- }
- },rmdir:function (path) {
- var lookup = FS.lookupPath(path, { parent: true });
- var parent = lookup.node;
- var name = PATH.basename(path);
- var node = FS.lookupNode(parent, name);
- var err = FS.mayDelete(parent, name, true);
- if (err) {
- throw new FS.ErrnoError(err);
- }
- if (!parent.node_ops.rmdir) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- if (FS.isMountpoint(node)) {
- throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
- }
- parent.node_ops.rmdir(parent, name);
- FS.destroyNode(node);
- },readdir:function (path) {
- var lookup = FS.lookupPath(path, { follow: true });
- var node = lookup.node;
- if (!node.node_ops.readdir) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
- }
- return node.node_ops.readdir(node);
- },unlink:function (path) {
- var lookup = FS.lookupPath(path, { parent: true });
- var parent = lookup.node;
- var name = PATH.basename(path);
- var node = FS.lookupNode(parent, name);
- var err = FS.mayDelete(parent, name, false);
- if (err) {
- // POSIX says unlink should set EPERM, not EISDIR
- if (err === ERRNO_CODES.EISDIR) err = ERRNO_CODES.EPERM;
- throw new FS.ErrnoError(err);
- }
- if (!parent.node_ops.unlink) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- if (FS.isMountpoint(node)) {
- throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
- }
- parent.node_ops.unlink(parent, name);
- FS.destroyNode(node);
- },readlink:function (path) {
- var lookup = FS.lookupPath(path);
- var link = lookup.node;
- if (!link.node_ops.readlink) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- return link.node_ops.readlink(link);
- },stat:function (path, dontFollow) {
- var lookup = FS.lookupPath(path, { follow: !dontFollow });
- var node = lookup.node;
- if (!node.node_ops.getattr) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- return node.node_ops.getattr(node);
- },lstat:function (path) {
- return FS.stat(path, true);
- },chmod:function (path, mode, dontFollow) {
- var node;
- if (typeof path === 'string') {
- var lookup = FS.lookupPath(path, { follow: !dontFollow });
- node = lookup.node;
- } else {
- node = path;
- }
- if (!node.node_ops.setattr) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- node.node_ops.setattr(node, {
- mode: (mode & 4095) | (node.mode & ~4095),
- timestamp: Date.now()
- });
- },lchmod:function (path, mode) {
- FS.chmod(path, mode, true);
- },fchmod:function (fd, mode) {
- var stream = FS.getStream(fd);
- if (!stream) {
- throw new FS.ErrnoError(ERRNO_CODES.EBADF);
- }
- FS.chmod(stream.node, mode);
- },chown:function (path, uid, gid, dontFollow) {
- var node;
- if (typeof path === 'string') {
- var lookup = FS.lookupPath(path, { follow: !dontFollow });
- node = lookup.node;
- } else {
- node = path;
- }
- if (!node.node_ops.setattr) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- node.node_ops.setattr(node, {
- timestamp: Date.now()
- // we ignore the uid / gid for now
- });
- },lchown:function (path, uid, gid) {
- FS.chown(path, uid, gid, true);
- },fchown:function (fd, uid, gid) {
- var stream = FS.getStream(fd);
- if (!stream) {
- throw new FS.ErrnoError(ERRNO_CODES.EBADF);
- }
- FS.chown(stream.node, uid, gid);
- },truncate:function (path, len) {
- if (len < 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- var node;
- if (typeof path === 'string') {
- var lookup = FS.lookupPath(path, { follow: true });
- node = lookup.node;
- } else {
- node = path;
- }
- if (!node.node_ops.setattr) {
- throw new FS.ErrnoError(ERRNO_CODES.EPERM);
- }
- if (FS.isDir(node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
- }
- if (!FS.isFile(node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- var err = FS.nodePermissions(node, 'w');
- if (err) {
- throw new FS.ErrnoError(err);
- }
- node.node_ops.setattr(node, {
- size: len,
- timestamp: Date.now()
- });
- },ftruncate:function (fd, len) {
- var stream = FS.getStream(fd);
- if (!stream) {
- throw new FS.ErrnoError(ERRNO_CODES.EBADF);
- }
- if ((stream.flags & 2097155) === 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- FS.truncate(stream.node, len);
- },utime:function (path, atime, mtime) {
- var lookup = FS.lookupPath(path, { follow: true });
- var node = lookup.node;
- node.node_ops.setattr(node, {
- timestamp: Math.max(atime, mtime)
- });
- },open:function (path, flags, mode, fd_start, fd_end) {
- flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags;
- mode = typeof mode === 'undefined' ? 438 /* 0666 */ : mode;
- if ((flags & 64)) {
- mode = (mode & 4095) | 32768;
- } else {
- mode = 0;
- }
- var node;
- if (typeof path === 'object') {
- node = path;
- } else {
- path = PATH.normalize(path);
- try {
- var lookup = FS.lookupPath(path, {
- follow: !(flags & 131072)
- });
- node = lookup.node;
- } catch (e) {
- // ignore
- }
- }
- // perhaps we need to create the node
- if ((flags & 64)) {
- if (node) {
- // if O_CREAT and O_EXCL are set, error out if the node already exists
- if ((flags & 128)) {
- throw new FS.ErrnoError(ERRNO_CODES.EEXIST);
- }
- } else {
- // node doesn't exist, try to create it
- node = FS.mknod(path, mode, 0);
- }
- }
- if (!node) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
- }
- // can't truncate a device
- if (FS.isChrdev(node.mode)) {
- flags &= ~512;
- }
- // check permissions
- var err = FS.mayOpen(node, flags);
- if (err) {
- throw new FS.ErrnoError(err);
- }
- // do truncation if necessary
- if ((flags & 512)) {
- FS.truncate(node, 0);
- }
- // we've already handled these, don't pass down to the underlying vfs
- flags &= ~(128 | 512);
- // register the stream with the filesystem
- var stream = FS.createStream({
- node: node,
- path: FS.getPath(node), // we want the absolute path to the node
- flags: flags,
- seekable: true,
- position: 0,
- stream_ops: node.stream_ops,
- // used by the file family libc calls (fopen, fwrite, ferror, etc.)
- ungotten: [],
- error: false
- }, fd_start, fd_end);
- // call the new stream's open function
- if (stream.stream_ops.open) {
- stream.stream_ops.open(stream);
- }
- if (Module['logReadFiles'] && !(flags & 1)) {
- if (!FS.readFiles) FS.readFiles = {};
- if (!(path in FS.readFiles)) {
- FS.readFiles[path] = 1;
- Module['printErr']('read file: ' + path);
- }
- }
- return stream;
- },close:function (stream) {
- try {
- if (stream.stream_ops.close) {
- stream.stream_ops.close(stream);
- }
- } catch (e) {
- throw e;
- } finally {
- FS.closeStream(stream.fd);
- }
- },llseek:function (stream, offset, whence) {
- if (!stream.seekable || !stream.stream_ops.llseek) {
- throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
- }
- return stream.stream_ops.llseek(stream, offset, whence);
- },read:function (stream, buffer, offset, length, position) {
- if (length < 0 || position < 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- if ((stream.flags & 2097155) === 1) {
- throw new FS.ErrnoError(ERRNO_CODES.EBADF);
- }
- if (FS.isDir(stream.node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
- }
- if (!stream.stream_ops.read) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- var seeking = true;
- if (typeof position === 'undefined') {
- position = stream.position;
- seeking = false;
- } else if (!stream.seekable) {
- throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
- }
- var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
- if (!seeking) stream.position += bytesRead;
- return bytesRead;
- },write:function (stream, buffer, offset, length, position, canOwn) {
- if (length < 0 || position < 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- if ((stream.flags & 2097155) === 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EBADF);
- }
- if (FS.isDir(stream.node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
- }
- if (!stream.stream_ops.write) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- var seeking = true;
- if (typeof position === 'undefined') {
- position = stream.position;
- seeking = false;
- } else if (!stream.seekable) {
- throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
- }
- if (stream.flags & 1024) {
- // seek to the end before writing in append mode
- FS.llseek(stream, 0, 2);
- }
- var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
- if (!seeking) stream.position += bytesWritten;
- return bytesWritten;
- },allocate:function (stream, offset, length) {
- if (offset < 0 || length <= 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- if ((stream.flags & 2097155) === 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EBADF);
- }
- if (!FS.isFile(stream.node.mode) && !FS.isDir(node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
- }
- if (!stream.stream_ops.allocate) {
- throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
- }
- stream.stream_ops.allocate(stream, offset, length);
- },mmap:function (stream, buffer, offset, length, position, prot, flags) {
- // TODO if PROT is PROT_WRITE, make sure we have write access
- if ((stream.flags & 2097155) === 1) {
- throw new FS.ErrnoError(ERRNO_CODES.EACCES);
- }
- if (!stream.stream_ops.mmap) {
- throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
- }
- return stream.stream_ops.mmap(stream, buffer, offset, length, position, prot, flags);
- },ioctl:function (stream, cmd, arg) {
- if (!stream.stream_ops.ioctl) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTTY);
- }
- return stream.stream_ops.ioctl(stream, cmd, arg);
- },readFile:function (path, opts) {
- opts = opts || {};
- opts.flags = opts.flags || 'r';
- opts.encoding = opts.encoding || 'binary';
- if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
- throw new Error('Invalid encoding type "' + opts.encoding + '"');
- }
- var ret;
- var stream = FS.open(path, opts.flags);
- var stat = FS.stat(path);
- var length = stat.size;
- var buf = new Uint8Array(length);
- FS.read(stream, buf, 0, length, 0);
- if (opts.encoding === 'utf8') {
- ret = '';
- var utf8 = new Runtime.UTF8Processor();
- for (var i = 0; i < length; i++) {
- ret += utf8.processCChar(buf[i]);
- }
- } else if (opts.encoding === 'binary') {
- ret = buf;
- }
- FS.close(stream);
- return ret;
- },writeFile:function (path, data, opts) {
- opts = opts || {};
- opts.flags = opts.flags || 'w';
- opts.encoding = opts.encoding || 'utf8';
- if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
- throw new Error('Invalid encoding type "' + opts.encoding + '"');
- }
- var stream = FS.open(path, opts.flags, opts.mode);
- if (opts.encoding === 'utf8') {
- var utf8 = new Runtime.UTF8Processor();
- var buf = new Uint8Array(utf8.processJSString(data));
- FS.write(stream, buf, 0, buf.length, 0, opts.canOwn);
- } else if (opts.encoding === 'binary') {
- FS.write(stream, data, 0, data.length, 0, opts.canOwn);
- }
- FS.close(stream);
- },cwd:function () {
- return FS.currentPath;
- },chdir:function (path) {
- var lookup = FS.lookupPath(path, { follow: true });
- if (!FS.isDir(lookup.node.mode)) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
- }
- var err = FS.nodePermissions(lookup.node, 'x');
- if (err) {
- throw new FS.ErrnoError(err);
- }
- FS.currentPath = lookup.path;
- },createDefaultDirectories:function () {
- FS.mkdir('/tmp');
- },createDefaultDevices:function () {
- // create /dev
- FS.mkdir('/dev');
- // setup /dev/null
- FS.registerDevice(FS.makedev(1, 3), {
- read: function() { return 0; },
- write: function() { return 0; }
- });
- FS.mkdev('/dev/null', FS.makedev(1, 3));
- // setup /dev/tty and /dev/tty1
- // stderr needs to print output using Module['printErr']
- // so we register a second tty just for it.
- TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
- TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
- FS.mkdev('/dev/tty', FS.makedev(5, 0));
- FS.mkdev('/dev/tty1', FS.makedev(6, 0));
- // we're not going to emulate the actual shm device,
- // just create the tmp dirs that reside in it commonly
- FS.mkdir('/dev/shm');
- FS.mkdir('/dev/shm/tmp');
- },createStandardStreams:function () {
- // TODO deprecate the old functionality of a single
- // input / output callback and that utilizes FS.createDevice
- // and instead require a unique set of stream ops
- // by default, we symlink the standard streams to the
- // default tty devices. however, if the standard streams
- // have been overwritten we create a unique device for
- // them instead.
- if (Module['stdin']) {
- FS.createDevice('/dev', 'stdin', Module['stdin']);
- } else {
- FS.symlink('/dev/tty', '/dev/stdin');
- }
- if (Module['stdout']) {
- FS.createDevice('/dev', 'stdout', null, Module['stdout']);
- } else {
- FS.symlink('/dev/tty', '/dev/stdout');
- }
- if (Module['stderr']) {
- FS.createDevice('/dev', 'stderr', null, Module['stderr']);
- } else {
- FS.symlink('/dev/tty1', '/dev/stderr');
- }
- // open default streams for the stdin, stdout and stderr devices
- var stdin = FS.open('/dev/stdin', 'r');
- HEAP32[((_stdin)>>2)]=FS.getPtrForStream(stdin);
- assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
- var stdout = FS.open('/dev/stdout', 'w');
- HEAP32[((_stdout)>>2)]=FS.getPtrForStream(stdout);
- assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
- var stderr = FS.open('/dev/stderr', 'w');
- HEAP32[((_stderr)>>2)]=FS.getPtrForStream(stderr);
- assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
- },ensureErrnoError:function () {
- if (FS.ErrnoError) return;
- FS.ErrnoError = function ErrnoError(errno) {
- this.errno = errno;
- for (var key in ERRNO_CODES) {
- if (ERRNO_CODES[key] === errno) {
- this.code = key;
- break;
- }
- }
- this.message = ERRNO_MESSAGES[errno];
- };
- FS.ErrnoError.prototype = new Error();
- FS.ErrnoError.prototype.constructor = FS.ErrnoError;
- // Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
- [ERRNO_CODES.ENOENT].forEach(function(code) {
- FS.genericErrors[code] = new FS.ErrnoError(code);
- FS.genericErrors[code].stack = '<generic error, no stack>';
- });
- },staticInit:function () {
- FS.ensureErrnoError();
- FS.nameTable = new Array(4096);
- FS.mount(MEMFS, {}, '/');
- FS.createDefaultDirectories();
- FS.createDefaultDevices();
- },init:function (input, output, error) {
- assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
- FS.init.initialized = true;
- FS.ensureErrnoError();
- // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
- Module['stdin'] = input || Module['stdin'];
- Module['stdout'] = output || Module['stdout'];
- Module['stderr'] = error || Module['stderr'];
- FS.createStandardStreams();
- },quit:function () {
- FS.init.initialized = false;
- for (var i = 0; i < FS.streams.length; i++) {
- var stream = FS.streams[i];
- if (!stream) {
- continue;
- }
- FS.close(stream);
- }
- },getMode:function (canRead, canWrite) {
- var mode = 0;
- if (canRead) mode |= 292 | 73;
- if (canWrite) mode |= 146;
- return mode;
- },joinPath:function (parts, forceRelative) {
- var path = PATH.join.apply(null, parts);
- if (forceRelative && path[0] == '/') path = path.substr(1);
- return path;
- },absolutePath:function (relative, base) {
- return PATH.resolve(base, relative);
- },standardizePath:function (path) {
- return PATH.normalize(path);
- },findObject:function (path, dontResolveLastLink) {
- var ret = FS.analyzePath(path, dontResolveLastLink);
- if (ret.exists) {
- return ret.object;
- } else {
- ___setErrNo(ret.error);
- return null;
- }
- },analyzePath:function (path, dontResolveLastLink) {
- // operate from within the context of the symlink's target
- try {
- var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
- path = lookup.path;
- } catch (e) {
- }
- var ret = {
- isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
- parentExists: false, parentPath: null, parentObject: null
- };
- try {
- var lookup = FS.lookupPath(path, { parent: true });
- ret.parentExists = true;
- ret.parentPath = lookup.path;
- ret.parentObject = lookup.node;
- ret.name = PATH.basename(path);
- lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
- ret.exists = true;
- ret.path = lookup.path;
- ret.object = lookup.node;
- ret.name = lookup.node.name;
- ret.isRoot = lookup.path === '/';
- } catch (e) {
- ret.error = e.errno;
- };
- return ret;
- },createFolder:function (parent, name, canRead, canWrite) {
- var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
- var mode = FS.getMode(canRead, canWrite);
- return FS.mkdir(path, mode);
- },createPath:function (parent, path, canRead, canWrite) {
- parent = typeof parent === 'string' ? parent : FS.getPath(parent);
- var parts = path.split('/').reverse();
- while (parts.length) {
- var part = parts.pop();
- if (!part) continue;
- var current = PATH.join2(parent, part);
- try {
- FS.mkdir(current);
- } catch (e) {
- // ignore EEXIST
- }
- parent = current;
- }
- return current;
- },createFile:function (parent, name, properties, canRead, canWrite) {
- var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
- var mode = FS.getMode(canRead, canWrite);
- return FS.create(path, mode);
- },createDataFile:function (parent, name, data, canRead, canWrite, canOwn) {
- var path = name ? PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name) : parent;
- var mode = FS.getMode(canRead, canWrite);
- var node = FS.create(path, mode);
- if (data) {
- if (typeof data === 'string') {
- var arr = new Array(data.length);
- for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
- data = arr;
- }
- // make sure we can write to the file
- FS.chmod(node, mode | 146);
- var stream = FS.open(node, 'w');
- FS.write(stream, data, 0, data.length, 0, canOwn);
- FS.close(stream);
- FS.chmod(node, mode);
- }
- return node;
- },createDevice:function (parent, name, input, output) {
- var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
- var mode = FS.getMode(!!input, !!output);
- if (!FS.createDevice.major) FS.createDevice.major = 64;
- var dev = FS.makedev(FS.createDevice.major++, 0);
- // Create a fake device that a set of stream ops to emulate
- // the old behavior.
- FS.registerDevice(dev, {
- open: function(stream) {
- stream.seekable = false;
- },
- close: function(stream) {
- // flush any pending line data
- if (output && output.buffer && output.buffer.length) {
- output(10);
- }
- },
- read: function(stream, buffer, offset, length, pos /* ignored */) {
- var bytesRead = 0;
- for (var i = 0; i < length; i++) {
- var result;
- try {
- result = input();
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES.EIO);
- }
- if (result === undefined && bytesRead === 0) {
- throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
- }
- if (result === null || result === undefined) break;
- bytesRead++;
- buffer[offset+i] = result;
- }
- if (bytesRead) {
- stream.node.timestamp = Date.now();
- }
- return bytesRead;
- },
- write: function(stream, buffer, offset, length, pos) {
- for (var i = 0; i < length; i++) {
- try {
- output(buffer[offset+i]);
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES.EIO);
- }
- }
- if (length) {
- stream.node.timestamp = Date.now();
- }
- return i;
- }
- });
- return FS.mkdev(path, mode, dev);
- },createLink:function (parent, name, target, canRead, canWrite) {
- var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
- return FS.symlink(target, path);
- },forceLoadFile:function (obj) {
- if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
- var success = true;
- if (typeof XMLHttpRequest !== 'undefined') {
- throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
- } else if (Module['read']) {
- // Command-line.
- try {
- // WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
- // read() will try to parse UTF8.
- obj.contents = intArrayFromString(Module['read'](obj.url), true);
- } catch (e) {
- success = false;
- }
- } else {
- throw new Error('Cannot load without read() or XMLHttpRequest.');
- }
- if (!success) ___setErrNo(ERRNO_CODES.EIO);
- return success;
- },createLazyFile:function (parent, name, url, canRead, canWrite) {
- // Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
- function LazyUint8Array() {
- this.lengthKnown = false;
- this.chunks = []; // Loaded chunks. Index is the chunk number
- }
- LazyUint8Array.prototype.get = function LazyUint8Array_get(idx) {
- if (idx > this.length-1 || idx < 0) {
- return undefined;
- }
- var chunkOffset = idx % this.chunkSize;
- var chunkNum = Math.floor(idx / this.chunkSize);
- return this.getter(chunkNum)[chunkOffset];
- }
- LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
- this.getter = getter;
- }
- LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() {
- // Find length
- var xhr = new XMLHttpRequest();
- xhr.open('HEAD', url, false);
- xhr.send(null);
- if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
- var datalength = Number(xhr.getResponseHeader("Content-length"));
- var header;
- var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
- var chunkSize = 1024*1024; // Chunk size in bytes
- if (!hasByteServing) chunkSize = datalength;
- // Function to get a range from the remote URL.
- var doXHR = (function(from, to) {
- if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
- if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!");
- // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
- var xhr = new XMLHttpRequest();
- xhr.open('GET', url, false);
- if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
- // Some hints to the browser that we want binary data.
- if (typeof Uint8Array != 'undefined') xhr.responseType = 'arraybuffer';
- if (xhr.overrideMimeType) {
- xhr.overrideMimeType('text/plain; charset=x-user-defined');
- }
- xhr.send(null);
- if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
- if (xhr.response !== undefined) {
- return new Uint8Array(xhr.response || []);
- } else {
- return intArrayFromString(xhr.responseText || '', true);
- }
- });
- var lazyArray = this;
- lazyArray.setDataGetter(function(chunkNum) {
- var start = chunkNum * chunkSize;
- var end = (chunkNum+1) * chunkSize - 1; // including this byte
- end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
- if (typeof(lazyArray.chunks[chunkNum]) === "undefined") {
- lazyArray.chunks[chunkNum] = doXHR(start, end);
- }
- if (typeof(lazyArray.chunks[chunkNum]) === "undefined") throw new Error("doXHR failed!");
- return lazyArray.chunks[chunkNum];
- });
- this._length = datalength;
- this._chunkSize = chunkSize;
- this.lengthKnown = true;
- }
- if (typeof XMLHttpRequest !== 'undefined') {
- if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc';
- var lazyArray = new LazyUint8Array();
- Object.defineProperty(lazyArray, "length", {
- get: function() {
- if(!this.lengthKnown) {
- this.cacheLength();
- }
- return this._length;
- }
- });
- Object.defineProperty(lazyArray, "chunkSize", {
- get: function() {
- if(!this.lengthKnown) {
- this.cacheLength();
- }
- return this._chunkSize;
- }
- });
- var properties = { isDevice: false, contents: lazyArray };
- } else {
- var properties = { isDevice: false, url: url };
- }
- var node = FS.createFile(parent, name, properties, canRead, canWrite);
- // This is a total hack, but I want to get this lazy file code out of the
- // core of MEMFS. If we want to keep this lazy file concept I feel it should
- // be its own thin LAZYFS proxying calls to MEMFS.
- if (properties.contents) {
- node.contents = properties.contents;
- } else if (properties.url) {
- node.contents = null;
- node.url = properties.url;
- }
- // override each stream op with one that tries to force load the lazy file first
- var stream_ops = {};
- var keys = Object.keys(node.stream_ops);
- keys.forEach(function(key) {
- var fn = node.stream_ops[key];
- stream_ops[key] = function forceLoadLazyFile() {
- if (!FS.forceLoadFile(node)) {
- throw new FS.ErrnoError(ERRNO_CODES.EIO);
- }
- return fn.apply(null, arguments);
- };
- });
- // use a custom read function
- stream_ops.read = function stream_ops_read(stream, buffer, offset, length, position) {
- if (!FS.forceLoadFile(node)) {
- throw new FS.ErrnoError(ERRNO_CODES.EIO);
- }
- var contents = stream.node.contents;
- if (position >= contents.length)
- return 0;
- var size = Math.min(contents.length - position, length);
- assert(size >= 0);
- if (contents.slice) { // normal array
- for (var i = 0; i < size; i++) {
- buffer[offset + i] = contents[position + i];
- }
- } else {
- for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
- buffer[offset + i] = contents.get(position + i);
- }
- }
- return size;
- };
- node.stream_ops = stream_ops;
- return node;
- },createPreloadedFile:function (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn) {
- Browser.init();
- // TODO we should allow people to just pass in a complete filename instead
- // of parent and name being that we just join them anyways
- var fullname = name ? PATH.resolve(PATH.join2(parent, name)) : parent;
- function processData(byteArray) {
- function finish(byteArray) {
- if (!dontCreateFile) {
- FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
- }
- if (onload) onload();
- removeRunDependency('cp ' + fullname);
- }
- var handled = false;
- Module['preloadPlugins'].forEach(function(plugin) {
- if (handled) return;
- if (plugin['canHandle'](fullname)) {
- plugin['handle'](byteArray, fullname, finish, function() {
- if (onerror) onerror();
- removeRunDependency('cp ' + fullname);
- });
- handled = true;
- }
- });
- if (!handled) finish(byteArray);
- }
- addRunDependency('cp ' + fullname);
- if (typeof url == 'string') {
- Browser.asyncLoad(url, function(byteArray) {
- processData(byteArray);
- }, onerror);
- } else {
- processData(url);
- }
- },indexedDB:function () {
- return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
- },DB_NAME:function () {
- return 'EM_FS_' + window.location.pathname;
- },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function (paths, onload, onerror) {
- onload = onload || function(){};
- onerror = onerror || function(){};
- var indexedDB = FS.indexedDB();
- try {
- var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
- } catch (e) {
- return onerror(e);
- }
- openRequest.onupgradeneeded = function openRequest_onupgradeneeded() {
- console.log('creating db');
- var db = openRequest.result;
- db.createObjectStore(FS.DB_STORE_NAME);
- };
- openRequest.onsuccess = function openRequest_onsuccess() {
- var db = openRequest.result;
- var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite');
- var files = transaction.objectStore(FS.DB_STORE_NAME);
- var ok = 0, fail = 0, total = paths.length;
- function finish() {
- if (fail == 0) onload(); else onerror();
- }
- paths.forEach(function(path) {
- var putRequest = files.put(FS.analyzePath(path).object.contents, path);
- putRequest.onsuccess = function putRequest_onsuccess() { ok++; if (ok + fail == total) finish() };
- putRequest.onerror = function putRequest_onerror() { fail++; if (ok + fail == total) finish() };
- });
- transaction.onerror = onerror;
- };
- openRequest.onerror = onerror;
- },loadFilesFromDB:function (paths, onload, onerror) {
- onload = onload || function(){};
- onerror = onerror || function(){};
- var indexedDB = FS.indexedDB();
- try {
- var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
- } catch (e) {
- return onerror(e);
- }
- openRequest.onupgradeneeded = onerror; // no database to load from
- openRequest.onsuccess = function openRequest_onsuccess() {
- var db = openRequest.result;
- try {
- var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly');
- } catch(e) {
- onerror(e);
- return;
- }
- var files = transaction.objectStore(FS.DB_STORE_NAME);
- var ok = 0, fail = 0, total = paths.length;
- function finish() {
- if (fail == 0) onload(); else onerror();
- }
- paths.forEach(function(path) {
- var getRequest = files.get(path);
- getRequest.onsuccess = function getRequest_onsuccess() {
- if (FS.analyzePath(path).exists) {
- FS.unlink(path);
- }
- FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
- ok++;
- if (ok + fail == total) finish();
- };
- getRequest.onerror = function getRequest_onerror() { fail++; if (ok + fail == total) finish() };
- });
- transaction.onerror = onerror;
- };
- openRequest.onerror = onerror;
- }};var PATH={splitPath:function (filename) {
- var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
- return splitPathRe.exec(filename).slice(1);
- },normalizeArray:function (parts, allowAboveRoot) {
- // if the path tries to go above the root, `up` ends up > 0
- var up = 0;
- for (var i = parts.length - 1; i >= 0; i--) {
- var last = parts[i];
- if (last === '.') {
- parts.splice(i, 1);
- } else if (last === '..') {
- parts.splice(i, 1);
- up++;
- } else if (up) {
- parts.splice(i, 1);
- up--;
- }
- }
- // if the path is allowed to go above the root, restore leading ..s
- if (allowAboveRoot) {
- for (; up--; up) {
- parts.unshift('..');
- }
- }
- return parts;
- },normalize:function (path) {
- var isAbsolute = path.charAt(0) === '/',
- trailingSlash = path.substr(-1) === '/';
- // Normalize the path
- path = PATH.normalizeArray(path.split('/').filter(function(p) {
- return !!p;
- }), !isAbsolute).join('/');
- if (!path && !isAbsolute) {
- path = '.';
- }
- if (path && trailingSlash) {
- path += '/';
- }
- return (isAbsolute ? '/' : '') + path;
- },dirname:function (path) {
- var result = PATH.splitPath(path),
- root = result[0],
- dir = result[1];
- if (!root && !dir) {
- // No dirname whatsoever
- return '.';
- }
- if (dir) {
- // It has a dirname, strip trailing slash
- dir = dir.substr(0, dir.length - 1);
- }
- return root + dir;
- },basename:function (path) {
- // EMSCRIPTEN return '/'' for '/', not an empty string
- if (path === '/') return '/';
- var lastSlash = path.lastIndexOf('/');
- if (lastSlash === -1) return path;
- return path.substr(lastSlash+1);
- },extname:function (path) {
- return PATH.splitPath(path)[3];
- },join:function () {
- var paths = Array.prototype.slice.call(arguments, 0);
- return PATH.normalize(paths.join('/'));
- },join2:function (l, r) {
- return PATH.normalize(l + '/' + r);
- },resolve:function () {
- var resolvedPath = '',
- resolvedAbsolute = false;
- for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
- var path = (i >= 0) ? arguments[i] : FS.cwd();
- // Skip empty and invalid entries
- if (typeof path !== 'string') {
- throw new TypeError('Arguments to path.resolve must be strings');
- } else if (!path) {
- continue;
- }
- resolvedPath = path + '/' + resolvedPath;
- resolvedAbsolute = path.charAt(0) === '/';
- }
- // At this point the path should be resolved to a full absolute path, but
- // handle relative paths to be safe (might happen when process.cwd() fails)
- resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(function(p) {
- return !!p;
- }), !resolvedAbsolute).join('/');
- return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
- },relative:function (from, to) {
- from = PATH.resolve(from).substr(1);
- to = PATH.resolve(to).substr(1);
- function trim(arr) {
- var start = 0;
- for (; start < arr.length; start++) {
- if (arr[start] !== '') break;
- }
- var end = arr.length - 1;
- for (; end >= 0; end--) {
- if (arr[end] !== '') break;
- }
- if (start > end) return [];
- return arr.slice(start, end - start + 1);
- }
- var fromParts = trim(from.split('/'));
- var toParts = trim(to.split('/'));
- var length = Math.min(fromParts.length, toParts.length);
- var samePartsLength = length;
- for (var i = 0; i < length; i++) {
- if (fromParts[i] !== toParts[i]) {
- samePartsLength = i;
- break;
- }
- }
- var outputParts = [];
- for (var i = samePartsLength; i < fromParts.length; i++) {
- outputParts.push('..');
- }
- outputParts = outputParts.concat(toParts.slice(samePartsLength));
- return outputParts.join('/');
- }};var Browser={mainLoop:{scheduler:null,method:"",shouldPause:false,paused:false,queue:[],pause:function () {
- Browser.mainLoop.shouldPause = true;
- },resume:function () {
- if (Browser.mainLoop.paused) {
- Browser.mainLoop.paused = false;
- Browser.mainLoop.scheduler();
- }
- Browser.mainLoop.shouldPause = false;
- },updateStatus:function () {
- if (Module['setStatus']) {
- var message = Module['statusMessage'] || 'Please wait...';
- var remaining = Browser.mainLoop.remainingBlockers;
- var expected = Browser.mainLoop.expectedBlockers;
- if (remaining) {
- if (remaining < expected) {
- Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')');
- } else {
- Module['setStatus'](message);
- }
- } else {
- Module['setStatus']('');
- }
- }
- }},isFullScreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function () {
- if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers
- if (Browser.initted || ENVIRONMENT_IS_WORKER) return;
- Browser.initted = true;
- try {
- new Blob();
- Browser.hasBlobConstructor = true;
- } catch(e) {
- Browser.hasBlobConstructor = false;
- console.log("warning: no blob constructor, cannot create blobs with mimetypes");
- }
- Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? console.log("warning: no BlobBuilder") : null));
- Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined;
- if (!Module.noImageDecoding && typeof Browser.URLObject === 'undefined') {
- console.log("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available.");
- Module.noImageDecoding = true;
- }
- // Support for plugins that can process preloaded files. You can add more of these to
- // your app by creating and appending to Module.preloadPlugins.
- //
- // Each plugin is asked if it can handle a file based on the file's name. If it can,
- // it is given the file's raw data. When it is done, it calls a callback with the file's
- // (possibly modified) data. For example, a plugin might decompress a file, or it
- // might create some side data structure for use later (like an Image element, etc.).
- var imagePlugin = {};
- imagePlugin['canHandle'] = function imagePlugin_canHandle(name) {
- return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name);
- };
- imagePlugin['handle'] = function imagePlugin_handle(byteArray, name, onload, onerror) {
- var b = null;
- if (Browser.hasBlobConstructor) {
- try {
- b = new Blob([byteArray], { type: Browser.getMimetype(name) });
- if (b.size !== byteArray.length) { // Safari bug #118630
- // Safari's Blob can only take an ArrayBuffer
- b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Browser.getMimetype(name) });
- }
- } catch(e) {
- Runtime.warnOnce('Blob constructor present but fails: ' + e + '; falling back to blob builder');
- }
- }
- if (!b) {
- var bb = new Browser.BlobBuilder();
- bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a buffer, and must copy the array to get the right data range
- b = bb.getBlob();
- }
- var url = Browser.URLObject.createObjectURL(b);
- var img = new Image();
- img.onload = function img_onload() {
- assert(img.complete, 'Image ' + name + ' could not be decoded');
- var canvas = document.createElement('canvas');
- canvas.width = img.width;
- canvas.height = img.height;
- var ctx = canvas.getContext('2d');
- ctx.drawImage(img, 0, 0);
- Module["preloadedImages"][name] = canvas;
- Browser.URLObject.revokeObjectURL(url);
- if (onload) onload(byteArray);
- };
- img.onerror = function img_onerror(event) {
- console.log('Image ' + url + ' could not be decoded');
- if (onerror) onerror();
- };
- img.src = url;
- };
- Module['preloadPlugins'].push(imagePlugin);
- var audioPlugin = {};
- audioPlugin['canHandle'] = function audioPlugin_canHandle(name) {
- return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 };
- };
- audioPlugin['handle'] = function audioPlugin_handle(byteArray, name, onload, onerror) {
- var done = false;
- function finish(audio) {
- if (done) return;
- done = true;
- Module["preloadedAudios"][name] = audio;
- if (onload) onload(byteArray);
- }
- function fail() {
- if (done) return;
- done = true;
- Module["preloadedAudios"][name] = new Audio(); // empty shim
- if (onerror) onerror();
- }
- if (Browser.hasBlobConstructor) {
- try {
- var b = new Blob([byteArray], { type: Browser.getMimetype(name) });
- } catch(e) {
- return fail();
- }
- var url = Browser.URLObject.createObjectURL(b); // XXX we never revoke this!
- var audio = new Audio();
- audio.addEventListener('canplaythrough', function() { finish(audio) }, false); // use addEventListener due to chromium bug 124926
- audio.onerror = function audio_onerror(event) {
- if (done) return;
- console.log('warning: browser could not fully decode audio ' + name + ', trying slower base64 approach');
- function encode64(data) {
- var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
- var PAD = '=';
- var ret = '';
- var leftchar = 0;
- var leftbits = 0;
- for (var i = 0; i < data.length; i++) {
- leftchar = (leftchar << 8) | data[i];
- leftbits += 8;
- while (leftbits >= 6) {
- var curr = (leftchar >> (leftbits-6)) & 0x3f;
- leftbits -= 6;
- ret += BASE[curr];
- }
- }
- if (leftbits == 2) {
- ret += BASE[(leftchar&3) << 4];
- ret += PAD + PAD;
- } else if (leftbits == 4) {
- ret += BASE[(leftchar&0xf) << 2];
- ret += PAD;
- }
- return ret;
- }
- audio.src = 'data:audio/x-' + name.substr(-3) + ';base64,' + encode64(byteArray);
- finish(audio); // we don't wait for confirmation this worked - but it's worth trying
- };
- audio.src = url;
- // workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror
- Browser.safeSetTimeout(function() {
- finish(audio); // try to use it even though it is not necessarily ready to play
- }, 10000);
- } else {
- return fail();
- }
- };
- Module['preloadPlugins'].push(audioPlugin);
- // Canvas event setup
- var canvas = Module['canvas'];
- // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module
- // Module['forcedAspectRatio'] = 4 / 3;
- canvas.requestPointerLock = canvas['requestPointerLock'] ||
- canvas['mozRequestPointerLock'] ||
- canvas['webkitRequestPointerLock'] ||
- canvas['msRequestPointerLock'] ||
- function(){};
- canvas.exitPointerLock = document['exitPointerLock'] ||
- document['mozExitPointerLock'] ||
- document['webkitExitPointerLock'] ||
- document['msExitPointerLock'] ||
- function(){}; // no-op if function does not exist
- canvas.exitPointerLock = canvas.exitPointerLock.bind(document);
- function pointerLockChange() {
- Browser.pointerLock = document['pointerLockElement'] === canvas ||
- document['mozPointerLockElement'] === canvas ||
- document['webkitPointerLockElement'] === canvas ||
- document['msPointerLockElement'] === canvas;
- }
- document.addEventListener('pointerlockchange', pointerLockChange, false);
- document.addEventListener('mozpointerlockchange', pointerLockChange, false);
- document.addEventListener('webkitpointerlockchange', pointerLockChange, false);
- document.addEventListener('mspointerlockchange', pointerLockChange, false);
- if (Module['elementPointerLock']) {
- canvas.addEventListener("click", function(ev) {
- if (!Browser.pointerLock && canvas.requestPointerLock) {
- canvas.requestPointerLock();
- ev.preventDefault();
- }
- }, false);
- }
- },createContext:function (canvas, useWebGL, setInModule, webGLContextAttributes) {
- var ctx;
- var errorInfo = '?';
- function onContextCreationError(event) {
- errorInfo = event.statusMessage || errorInfo;
- }
- try {
- if (useWebGL) {
- var contextAttributes = {
- antialias: false,
- alpha: false
- };
- if (webGLContextAttributes) {
- for (var attribute in webGLContextAttributes) {
- contextAttributes[attribute] = webGLContextAttributes[attribute];
- }
- }
- canvas.addEventListener('webglcontextcreationerror', onContextCreationError, false);
- try {
- ['experimental-webgl', 'webgl'].some(function(webglId) {
- return ctx = canvas.getContext(webglId, contextAttributes);
- });
- } finally {
- canvas.removeEventListener('webglcontextcreationerror', onContextCreationError, false);
- }
- } else {
- ctx = canvas.getContext('2d');
- }
- if (!ctx) throw ':(';
- } catch (e) {
- Module.print('Could not create canvas: ' + [errorInfo, e]);
- return null;
- }
- if (useWebGL) {
- // Set the background of the WebGL canvas to black
- canvas.style.backgroundColor = "black";
- // Warn on context loss
- canvas.addEventListener('webglcontextlost', function(event) {
- alert('WebGL context lost. You will need to reload the page.');
- }, false);
- }
- if (setInModule) {
- GLctx = Module.ctx = ctx;
- Module.useWebGL = useWebGL;
- Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() });
- Browser.init();
- }
- return ctx;
- },destroyContext:function (canvas, useWebGL, setInModule) {},fullScreenHandlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullScreen:function (lockPointer, resizeCanvas) {
- Browser.lockPointer = lockPointer;
- Browser.resizeCanvas = resizeCanvas;
- if (typeof Browser.lockPointer === 'undefined') Browser.lockPointer = true;
- if (typeof Browser.resizeCanvas === 'undefined') Browser.resizeCanvas = false;
- var canvas = Module['canvas'];
- function fullScreenChange() {
- Browser.isFullScreen = false;
- var canvasContainer = canvas.parentNode;
- if ((document['webkitFullScreenElement'] || document['webkitFullscreenElement'] ||
- document['mozFullScreenElement'] || document['mozFullscreenElement'] ||
- document['fullScreenElement'] || document['fullscreenElement'] ||
- document['msFullScreenElement'] || document['msFullscreenElement'] ||
- document['webkitCurrentFullScreenElement']) === canvasContainer) {
- canvas.cancelFullScreen = document['cancelFullScreen'] ||
- document['mozCancelFullScreen'] ||
- document['webkitCancelFullScreen'] ||
- document['msExitFullscreen'] ||
- document['exitFullscreen'] ||
- function() {};
- canvas.cancelFullScreen = canvas.cancelFullScreen.bind(document);
- if (Browser.lockPointer) canvas.requestPointerLock();
- Browser.isFullScreen = true;
- if (Browser.resizeCanvas) Browser.setFullScreenCanvasSize();
- } else {
- // remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen
- canvasContainer.parentNode.insertBefore(canvas, canvasContainer);
- canvasContainer.parentNode.removeChild(canvasContainer);
- if (Browser.resizeCanvas) Browser.setWindowedCanvasSize();
- }
- if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullScreen);
- Browser.updateCanvasDimensions(canvas);
- }
- if (!Browser.fullScreenHandlersInstalled) {
- Browser.fullScreenHandlersInstalled = true;
- document.addEventListener('fullscreenchange', fullScreenChange, false);
- document.addEventListener('mozfullscreenchange', fullScreenChange, false);
- document.addEventListener('webkitfullscreenchange', fullScreenChange, false);
- document.addEventListener('MSFullscreenChange', fullScreenChange, false);
- }
- // create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root
- var canvasContainer = document.createElement("div");
- canvas.parentNode.insertBefore(canvasContainer, canvas);
- canvasContainer.appendChild(canvas);
- // use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size)
- canvasContainer.requestFullScreen = canvasContainer['requestFullScreen'] ||
- canvasContainer['mozRequestFullScreen'] ||
- canvasContainer['msRequestFullscreen'] ||
- (canvasContainer['webkitRequestFullScreen'] ? function() { canvasContainer['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null);
- canvasContainer.requestFullScreen();
- },requestAnimationFrame:function requestAnimationFrame(func) {
- if (typeof window === 'undefined') { // Provide fallback to setTimeout if window is undefined (e.g. in Node.js)
- setTimeout(func, 1000/60);
- } else {
- if (!window.requestAnimationFrame) {
- window.requestAnimationFrame = window['requestAnimationFrame'] ||
- window['mozRequestAnimationFrame'] ||
- window['webkitRequestAnimationFrame'] ||
- window['msRequestAnimationFrame'] ||
- window['oRequestAnimationFrame'] ||
- window['setTimeout'];
- }
- window.requestAnimationFrame(func);
- }
- },safeCallback:function (func) {
- return function() {
- if (!ABORT) return func.apply(null, arguments);
- };
- },safeRequestAnimationFrame:function (func) {
- return Browser.requestAnimationFrame(function() {
- if (!ABORT) func();
- });
- },safeSetTimeout:function (func, timeout) {
- return setTimeout(function() {
- if (!ABORT) func();
- }, timeout);
- },safeSetInterval:function (func, timeout) {
- return setInterval(function() {
- if (!ABORT) func();
- }, timeout);
- },getMimetype:function (name) {
- return {
- 'jpg': 'image/jpeg',
- 'jpeg': 'image/jpeg',
- 'png': 'image/png',
- 'bmp': 'image/bmp',
- 'ogg': 'audio/ogg',
- 'wav': 'audio/wav',
- 'mp3': 'audio/mpeg'
- }[name.substr(name.lastIndexOf('.')+1)];
- },getUserMedia:function (func) {
- if(!window.getUserMedia) {
- window.getUserMedia = navigator['getUserMedia'] ||
- navigator['mozGetUserMedia'];
- }
- window.getUserMedia(func);
- },getMovementX:function (event) {
- return event['movementX'] ||
- event['mozMovementX'] ||
- event['webkitMovementX'] ||
- 0;
- },getMovementY:function (event) {
- return event['movementY'] ||
- event['mozMovementY'] ||
- event['webkitMovementY'] ||
- 0;
- },getMouseWheelDelta:function (event) {
- return Math.max(-1, Math.min(1, event.type === 'DOMMouseScroll' ? event.detail : -event.wheelDelta));
- },mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,calculateMouseEvent:function (event) { // event should be mousemove, mousedown or mouseup
- if (Browser.pointerLock) {
- // When the pointer is locked, calculate the coordinates
- // based on the movement of the mouse.
- // Workaround for Firefox bug 764498
- if (event.type != 'mousemove' &&
- ('mozMovementX' in event)) {
- Browser.mouseMovementX = Browser.mouseMovementY = 0;
- } else {
- Browser.mouseMovementX = Browser.getMovementX(event);
- Browser.mouseMovementY = Browser.getMovementY(event);
- }
- // check if SDL is available
- if (typeof SDL != "undefined") {
- Browser.mouseX = SDL.mouseX + Browser.mouseMovementX;
- Browser.mouseY = SDL.mouseY + Browser.mouseMovementY;
- } else {
- // just add the mouse delta to the current absolut mouse position
- // FIXME: ideally this should be clamped against the canvas size and zero
- Browser.mouseX += Browser.mouseMovementX;
- Browser.mouseY += Browser.mouseMovementY;
- }
- } else {
- // Otherwise, calculate the movement based on the changes
- // in the coordinates.
- var rect = Module["canvas"].getBoundingClientRect();
- var x, y;
- // Neither .scrollX or .pageXOffset are defined in a spec, but
- // we prefer .scrollX because it is currently in a spec draft.
- // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/)
- var scrollX = ((typeof window.scrollX !== 'undefined') ? window.scrollX : window.pageXOffset);
- var scrollY = ((typeof window.scrollY !== 'undefined') ? window.scrollY : window.pageYOffset);
- if (event.type == 'touchstart' ||
- event.type == 'touchend' ||
- event.type == 'touchmove') {
- var t = event.touches.item(0);
- if (t) {
- x = t.pageX - (scrollX + rect.left);
- y = t.pageY - (scrollY + rect.top);
- } else {
- return;
- }
- } else {
- x = event.pageX - (scrollX + rect.left);
- y = event.pageY - (scrollY + rect.top);
- }
- // the canvas might be CSS-scaled compared to its backbuffer;
- // SDL-using content will want mouse coordinates in terms
- // of backbuffer units.
- var cw = Module["canvas"].width;
- var ch = Module["canvas"].height;
- x = x * (cw / rect.width);
- y = y * (ch / rect.height);
- Browser.mouseMovementX = x - Browser.mouseX;
- Browser.mouseMovementY = y - Browser.mouseY;
- Browser.mouseX = x;
- Browser.mouseY = y;
- }
- },xhrLoad:function (url, onload, onerror) {
- var xhr = new XMLHttpRequest();
- xhr.open('GET', url, true);
- xhr.responseType = 'arraybuffer';
- xhr.onload = function xhr_onload() {
- if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
- onload(xhr.response);
- } else {
- onerror();
- }
- };
- xhr.onerror = onerror;
- xhr.send(null);
- },asyncLoad:function (url, onload, onerror, noRunDep) {
- Browser.xhrLoad(url, function(arrayBuffer) {
- assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
- onload(new Uint8Array(arrayBuffer));
- if (!noRunDep) removeRunDependency('al ' + url);
- }, function(event) {
- if (onerror) {
- onerror();
- } else {
- throw 'Loading data file "' + url + '" failed.';
- }
- });
- if (!noRunDep) addRunDependency('al ' + url);
- },resizeListeners:[],updateResizeListeners:function () {
- var canvas = Module['canvas'];
- Browser.resizeListeners.forEach(function(listener) {
- listener(canvas.width, canvas.height);
- });
- },setCanvasSize:function (width, height, noUpdates) {
- var canvas = Module['canvas'];
- Browser.updateCanvasDimensions(canvas, width, height);
- if (!noUpdates) Browser.updateResizeListeners();
- },windowedWidth:0,windowedHeight:0,setFullScreenCanvasSize:function () {
- // check if SDL is available
- if (typeof SDL != "undefined") {
- var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
- flags = flags | 0x00800000; // set SDL_FULLSCREEN flag
- HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
- }
- Browser.updateResizeListeners();
- },setWindowedCanvasSize:function () {
- // check if SDL is available
- if (typeof SDL != "undefined") {
- var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
- flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag
- HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
- }
- Browser.updateResizeListeners();
- },updateCanvasDimensions:function (canvas, wNative, hNative) {
- if (wNative && hNative) {
- canvas.widthNative = wNative;
- canvas.heightNative = hNative;
- } else {
- wNative = canvas.widthNative;
- hNative = canvas.heightNative;
- }
- var w = wNative;
- var h = hNative;
- if (Module['forcedAspectRatio'] && Module['forcedAspectRatio'] > 0) {
- if (w/h < Module['forcedAspectRatio']) {
- w = Math.round(h * Module['forcedAspectRatio']);
- } else {
- h = Math.round(w / Module['forcedAspectRatio']);
- }
- }
- if (((document['webkitFullScreenElement'] || document['webkitFullscreenElement'] ||
- document['mozFullScreenElement'] || document['mozFullscreenElement'] ||
- document['fullScreenElement'] || document['fullscreenElement'] ||
- document['msFullScreenElement'] || document['msFullscreenElement'] ||
- document['webkitCurrentFullScreenElement']) === canvas.parentNode) && (typeof screen != 'undefined')) {
- var factor = Math.min(screen.width / w, screen.height / h);
- w = Math.round(w * factor);
- h = Math.round(h * factor);
- }
- if (Browser.resizeCanvas) {
- if (canvas.width != w) canvas.width = w;
- if (canvas.height != h) canvas.height = h;
- if (typeof canvas.style != 'undefined') {
- canvas.style.removeProperty( "width");
- canvas.style.removeProperty("height");
- }
- } else {
- if (canvas.width != wNative) canvas.width = wNative;
- if (canvas.height != hNative) canvas.height = hNative;
- if (typeof canvas.style != 'undefined') {
- if (w != wNative || h != hNative) {
- canvas.style.setProperty( "width", w + "px", "important");
- canvas.style.setProperty("height", h + "px", "important");
- } else {
- canvas.style.removeProperty( "width");
- canvas.style.removeProperty("height");
- }
- }
- }
- }};
- function _mkport() { throw 'TODO' }var SOCKFS={mount:function (mount) {
- return FS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
- },createSocket:function (family, type, protocol) {
- var streaming = type == 1;
- if (protocol) {
- assert(streaming == (protocol == 6)); // if SOCK_STREAM, must be tcp
- }
- // create our internal socket structure
- var sock = {
- family: family,
- type: type,
- protocol: protocol,
- server: null,
- peers: {},
- pending: [],
- recv_queue: [],
- sock_ops: SOCKFS.websocket_sock_ops
- };
- // create the filesystem node to store the socket structure
- var name = SOCKFS.nextname();
- var node = FS.createNode(SOCKFS.root, name, 49152, 0);
- node.sock = sock;
- // and the wrapping stream that enables library functions such
- // as read and write to indirectly interact with the socket
- var stream = FS.createStream({
- path: name,
- node: node,
- flags: FS.modeStringToFlags('r+'),
- seekable: false,
- stream_ops: SOCKFS.stream_ops
- });
- // map the new stream to the socket structure (sockets have a 1:1
- // relationship with a stream)
- sock.stream = stream;
- return sock;
- },getSocket:function (fd) {
- var stream = FS.getStream(fd);
- if (!stream || !FS.isSocket(stream.node.mode)) {
- return null;
- }
- return stream.node.sock;
- },stream_ops:{poll:function (stream) {
- var sock = stream.node.sock;
- return sock.sock_ops.poll(sock);
- },ioctl:function (stream, request, varargs) {
- var sock = stream.node.sock;
- return sock.sock_ops.ioctl(sock, request, varargs);
- },read:function (stream, buffer, offset, length, position /* ignored */) {
- var sock = stream.node.sock;
- var msg = sock.sock_ops.recvmsg(sock, length);
- if (!msg) {
- // socket is closed
- return 0;
- }
- buffer.set(msg.buffer, offset);
- return msg.buffer.length;
- },write:function (stream, buffer, offset, length, position /* ignored */) {
- var sock = stream.node.sock;
- return sock.sock_ops.sendmsg(sock, buffer, offset, length);
- },close:function (stream) {
- var sock = stream.node.sock;
- sock.sock_ops.close(sock);
- }},nextname:function () {
- if (!SOCKFS.nextname.current) {
- SOCKFS.nextname.current = 0;
- }
- return 'socket[' + (SOCKFS.nextname.current++) + ']';
- },websocket_sock_ops:{createPeer:function (sock, addr, port) {
- var ws;
- if (typeof addr === 'object') {
- ws = addr;
- addr = null;
- port = null;
- }
- if (ws) {
- // for sockets that've already connected (e.g. we're the server)
- // we can inspect the _socket property for the address
- if (ws._socket) {
- addr = ws._socket.remoteAddress;
- port = ws._socket.remotePort;
- }
- // if we're just now initializing a connection to the remote,
- // inspect the url property
- else {
- var result = /ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url);
- if (!result) {
- throw new Error('WebSocket URL must be in the format ws(s)://address:port');
- }
- addr = result[1];
- port = parseInt(result[2], 10);
- }
- } else {
- // create the actual websocket object and connect
- try {
- // runtimeConfig gets set to true if WebSocket runtime configuration is available.
- var runtimeConfig = (Module['websocket'] && ('object' === typeof Module['websocket']));
- // The default value is 'ws://' the replace is needed because the compiler replaces "//" comments with '#'
- // comments without checking context, so we'd end up with ws:#, the replace swaps the "#" for "//" again.
- var url = 'ws:#'.replace('#', '//');
- if (runtimeConfig) {
- if ('string' === typeof Module['websocket']['url']) {
- url = Module['websocket']['url']; // Fetch runtime WebSocket URL config.
- }
- }
- if (url === 'ws://' || url === 'wss://') { // Is the supplied URL config just a prefix, if so complete it.
- url = url + addr + ':' + port;
- }
- // Make the WebSocket subprotocol (Sec-WebSocket-Protocol) default to binary if no configuration is set.
- var subProtocols = 'binary'; // The default value is 'binary'
- if (runtimeConfig) {
- if ('string' === typeof Module['websocket']['subprotocol']) {
- subProtocols = Module['websocket']['subprotocol']; // Fetch runtime WebSocket subprotocol config.
- }
- }
- // The regex trims the string (removes spaces at the beginning and end, then splits the string by
- // <any space>,<any space> into an Array. Whitespace removal is important for Websockify and ws.
- subProtocols = subProtocols.replace(/^ +| +$/g,"").split(/ *, */);
- // The node ws library API for specifying optional subprotocol is slightly different than the browser's.
- var opts = ENVIRONMENT_IS_NODE ? {'protocol': subProtocols.toString()} : subProtocols;
- // If node we use the ws library.
- var WebSocket = ENVIRONMENT_IS_NODE ? require('ws') : window['WebSocket'];
- ws = new WebSocket(url, opts);
- ws.binaryType = 'arraybuffer';
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES.EHOSTUNREACH);
- }
- }
- var peer = {
- addr: addr,
- port: port,
- socket: ws,
- dgram_send_queue: []
- };
- SOCKFS.websocket_sock_ops.addPeer(sock, peer);
- SOCKFS.websocket_sock_ops.handlePeerEvents(sock, peer);
- // if this is a bound dgram socket, send the port number first to allow
- // us to override the ephemeral port reported to us by remotePort on the
- // remote end.
- if (sock.type === 2 && typeof sock.sport !== 'undefined') {
- peer.dgram_send_queue.push(new Uint8Array([
- 255, 255, 255, 255,
- 'p'.charCodeAt(0), 'o'.charCodeAt(0), 'r'.charCodeAt(0), 't'.charCodeAt(0),
- ((sock.sport & 0xff00) >> 8) , (sock.sport & 0xff)
- ]));
- }
- return peer;
- },getPeer:function (sock, addr, port) {
- return sock.peers[addr + ':' + port];
- },addPeer:function (sock, peer) {
- sock.peers[peer.addr + ':' + peer.port] = peer;
- },removePeer:function (sock, peer) {
- delete sock.peers[peer.addr + ':' + peer.port];
- },handlePeerEvents:function (sock, peer) {
- var first = true;
- var handleOpen = function () {
- try {
- var queued = peer.dgram_send_queue.shift();
- while (queued) {
- peer.socket.send(queued);
- queued = peer.dgram_send_queue.shift();
- }
- } catch (e) {
- // not much we can do here in the way of proper error handling as we've already
- // lied and said this data was sent. shut it down.
- peer.socket.close();
- }
- };
- function handleMessage(data) {
- assert(typeof data !== 'string' && data.byteLength !== undefined); // must receive an ArrayBuffer
- data = new Uint8Array(data); // make a typed array view on the array buffer
- // if this is the port message, override the peer's port with it
- var wasfirst = first;
- first = false;
- if (wasfirst &&
- data.length === 10 &&
- data[0] === 255 && data[1] === 255 && data[2] === 255 && data[3] === 255 &&
- data[4] === 'p'.charCodeAt(0) && data[5] === 'o'.charCodeAt(0) && data[6] === 'r'.charCodeAt(0) && data[7] === 't'.charCodeAt(0)) {
- // update the peer's port and it's key in the peer map
- var newport = ((data[8] << 8) | data[9]);
- SOCKFS.websocket_sock_ops.removePeer(sock, peer);
- peer.port = newport;
- SOCKFS.websocket_sock_ops.addPeer(sock, peer);
- return;
- }
- sock.recv_queue.push({ addr: peer.addr, port: peer.port, data: data });
- };
- if (ENVIRONMENT_IS_NODE) {
- peer.socket.on('open', handleOpen);
- peer.socket.on('message', function(data, flags) {
- if (!flags.binary) {
- return;
- }
- handleMessage((new Uint8Array(data)).buffer); // copy from node Buffer -> ArrayBuffer
- });
- peer.socket.on('error', function() {
- // don't throw
- });
- } else {
- peer.socket.onopen = handleOpen;
- peer.socket.onmessage = function peer_socket_onmessage(event) {
- handleMessage(event.data);
- };
- }
- },poll:function (sock) {
- if (sock.type === 1 && sock.server) {
- // listen sockets should only say they're available for reading
- // if there are pending clients.
- return sock.pending.length ? (64 | 1) : 0;
- }
- var mask = 0;
- var dest = sock.type === 1 ? // we only care about the socket state for connection-based sockets
- SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport) :
- null;
- if (sock.recv_queue.length ||
- !dest || // connection-less sockets are always ready to read
- (dest && dest.socket.readyState === dest.socket.CLOSING) ||
- (dest && dest.socket.readyState === dest.socket.CLOSED)) { // let recv return 0 once closed
- mask |= (64 | 1);
- }
- if (!dest || // connection-less sockets are always ready to write
- (dest && dest.socket.readyState === dest.socket.OPEN)) {
- mask |= 4;
- }
- if ((dest && dest.socket.readyState === dest.socket.CLOSING) ||
- (dest && dest.socket.readyState === dest.socket.CLOSED)) {
- mask |= 16;
- }
- return mask;
- },ioctl:function (sock, request, arg) {
- switch (request) {
- case 21531:
- var bytes = 0;
- if (sock.recv_queue.length) {
- bytes = sock.recv_queue[0].data.length;
- }
- HEAP32[((arg)>>2)]=bytes;
- return 0;
- default:
- return ERRNO_CODES.EINVAL;
- }
- },close:function (sock) {
- // if we've spawned a listen server, close it
- if (sock.server) {
- try {
- sock.server.close();
- } catch (e) {
- }
- sock.server = null;
- }
- // close any peer connections
- var peers = Object.keys(sock.peers);
- for (var i = 0; i < peers.length; i++) {
- var peer = sock.peers[peers[i]];
- try {
- peer.socket.close();
- } catch (e) {
- }
- SOCKFS.websocket_sock_ops.removePeer(sock, peer);
- }
- return 0;
- },bind:function (sock, addr, port) {
- if (typeof sock.saddr !== 'undefined' || typeof sock.sport !== 'undefined') {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already bound
- }
- sock.saddr = addr;
- sock.sport = port || _mkport();
- // in order to emulate dgram sockets, we need to launch a listen server when
- // binding on a connection-less socket
- // note: this is only required on the server side
- if (sock.type === 2) {
- // close the existing server if it exists
- if (sock.server) {
- sock.server.close();
- sock.server = null;
- }
- // swallow error operation not supported error that occurs when binding in the
- // browser where this isn't supported
- try {
- sock.sock_ops.listen(sock, 0);
- } catch (e) {
- if (!(e instanceof FS.ErrnoError)) throw e;
- if (e.errno !== ERRNO_CODES.EOPNOTSUPP) throw e;
- }
- }
- },connect:function (sock, addr, port) {
- if (sock.server) {
- throw new FS.ErrnoError(ERRNO_CODS.EOPNOTSUPP);
- }
- // TODO autobind
- // if (!sock.addr && sock.type == 2) {
- // }
- // early out if we're already connected / in the middle of connecting
- if (typeof sock.daddr !== 'undefined' && typeof sock.dport !== 'undefined') {
- var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
- if (dest) {
- if (dest.socket.readyState === dest.socket.CONNECTING) {
- throw new FS.ErrnoError(ERRNO_CODES.EALREADY);
- } else {
- throw new FS.ErrnoError(ERRNO_CODES.EISCONN);
- }
- }
- }
- // add the socket to our peer list and set our
- // destination address / port to match
- var peer = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
- sock.daddr = peer.addr;
- sock.dport = peer.port;
- // always "fail" in non-blocking mode
- throw new FS.ErrnoError(ERRNO_CODES.EINPROGRESS);
- },listen:function (sock, backlog) {
- if (!ENVIRONMENT_IS_NODE) {
- throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
- }
- if (sock.server) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already listening
- }
- var WebSocketServer = require('ws').Server;
- var host = sock.saddr;
- sock.server = new WebSocketServer({
- host: host,
- port: sock.sport
- // TODO support backlog
- });
- sock.server.on('connection', function(ws) {
- if (sock.type === 1) {
- var newsock = SOCKFS.createSocket(sock.family, sock.type, sock.protocol);
- // create a peer on the new socket
- var peer = SOCKFS.websocket_sock_ops.createPeer(newsock, ws);
- newsock.daddr = peer.addr;
- newsock.dport = peer.port;
- // push to queue for accept to pick up
- sock.pending.push(newsock);
- } else {
- // create a peer on the listen socket so calling sendto
- // with the listen socket and an address will resolve
- // to the correct client
- SOCKFS.websocket_sock_ops.createPeer(sock, ws);
- }
- });
- sock.server.on('closed', function() {
- sock.server = null;
- });
- sock.server.on('error', function() {
- // don't throw
- });
- },accept:function (listensock) {
- if (!listensock.server) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- var newsock = listensock.pending.shift();
- newsock.stream.flags = listensock.stream.flags;
- return newsock;
- },getname:function (sock, peer) {
- var addr, port;
- if (peer) {
- if (sock.daddr === undefined || sock.dport === undefined) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
- }
- addr = sock.daddr;
- port = sock.dport;
- } else {
- // TODO saddr and sport will be set for bind()'d UDP sockets, but what
- // should we be returning for TCP sockets that've been connect()'d?
- addr = sock.saddr || 0;
- port = sock.sport || 0;
- }
- return { addr: addr, port: port };
- },sendmsg:function (sock, buffer, offset, length, addr, port) {
- if (sock.type === 2) {
- // connection-less sockets will honor the message address,
- // and otherwise fall back to the bound destination address
- if (addr === undefined || port === undefined) {
- addr = sock.daddr;
- port = sock.dport;
- }
- // if there was no address to fall back to, error out
- if (addr === undefined || port === undefined) {
- throw new FS.ErrnoError(ERRNO_CODES.EDESTADDRREQ);
- }
- } else {
- // connection-based sockets will only use the bound
- addr = sock.daddr;
- port = sock.dport;
- }
- // find the peer for the destination address
- var dest = SOCKFS.websocket_sock_ops.getPeer(sock, addr, port);
- // early out if not connected with a connection-based socket
- if (sock.type === 1) {
- if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
- throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
- } else if (dest.socket.readyState === dest.socket.CONNECTING) {
- throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
- }
- }
- // create a copy of the incoming data to send, as the WebSocket API
- // doesn't work entirely with an ArrayBufferView, it'll just send
- // the entire underlying buffer
- var data;
- if (buffer instanceof Array || buffer instanceof ArrayBuffer) {
- data = buffer.slice(offset, offset + length);
- } else { // ArrayBufferView
- data = buffer.buffer.slice(buffer.byteOffset + offset, buffer.byteOffset + offset + length);
- }
- // if we're emulating a connection-less dgram socket and don't have
- // a cached connection, queue the buffer to send upon connect and
- // lie, saying the data was sent now.
- if (sock.type === 2) {
- if (!dest || dest.socket.readyState !== dest.socket.OPEN) {
- // if we're not connected, open a new connection
- if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
- dest = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
- }
- dest.dgram_send_queue.push(data);
- return length;
- }
- }
- try {
- // send the actual data
- dest.socket.send(data);
- return length;
- } catch (e) {
- throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
- }
- },recvmsg:function (sock, length) {
- // http://pubs.opengroup.org/onlinepubs/7908799/xns/recvmsg.html
- if (sock.type === 1 && sock.server) {
- // tcp servers should not be recv()'ing on the listen socket
- throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
- }
- var queued = sock.recv_queue.shift();
- if (!queued) {
- if (sock.type === 1) {
- var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
- if (!dest) {
- // if we have a destination address but are not connected, error out
- throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
- }
- else if (dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
- // return null if the socket has closed
- return null;
- }
- else {
- // else, our socket is in a valid state but truly has nothing available
- throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
- }
- } else {
- throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
- }
- }
- // queued.data will be an ArrayBuffer if it's unadulterated, but if it's
- // requeued TCP data it'll be an ArrayBufferView
- var queuedLength = queued.data.byteLength || queued.data.length;
- var queuedOffset = queued.data.byteOffset || 0;
- var queuedBuffer = queued.data.buffer || queued.data;
- var bytesRead = Math.min(length, queuedLength);
- var res = {
- buffer: new Uint8Array(queuedBuffer, queuedOffset, bytesRead),
- addr: queued.addr,
- port: queued.port
- };
- // push back any unread data for TCP connections
- if (sock.type === 1 && bytesRead < queuedLength) {
- var bytesRemaining = queuedLength - bytesRead;
- queued.data = new Uint8Array(queuedBuffer, queuedOffset + bytesRead, bytesRemaining);
- sock.recv_queue.unshift(queued);
- }
- return res;
- }}};function _send(fd, buf, len, flags) {
- var sock = SOCKFS.getSocket(fd);
- if (!sock) {
- ___setErrNo(ERRNO_CODES.EBADF);
- return -1;
- }
- // TODO honor flags
- return _write(fd, buf, len);
- }
- function _pwrite(fildes, buf, nbyte, offset) {
- // ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset);
- // http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
- var stream = FS.getStream(fildes);
- if (!stream) {
- ___setErrNo(ERRNO_CODES.EBADF);
- return -1;
- }
- try {
- var slab = HEAP8;
- return FS.write(stream, slab, buf, nbyte, offset);
- } catch (e) {
- FS.handleFSError(e);
- return -1;
- }
- }function _write(fildes, buf, nbyte) {
- // ssize_t write(int fildes, const void *buf, size_t nbyte);
- // http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
- var stream = FS.getStream(fildes);
- if (!stream) {
- ___setErrNo(ERRNO_CODES.EBADF);
- return -1;
- }
- try {
- var slab = HEAP8;
- return FS.write(stream, slab, buf, nbyte);
- } catch (e) {
- FS.handleFSError(e);
- return -1;
- }
- }
- function _fileno(stream) {
- // int fileno(FILE *stream);
- // http://pubs.opengroup.org/onlinepubs/000095399/functions/fileno.html
- stream = FS.getStreamFromPtr(stream);
- if (!stream) return -1;
- return stream.fd;
- }function _fwrite(ptr, size, nitems, stream) {
- // size_t fwrite(const void *restrict ptr, size_t size, size_t nitems, FILE *restrict stream);
- // http://pubs.opengroup.org/onlinepubs/000095399/functions/fwrite.html
- var bytesToWrite = nitems * size;
- if (bytesToWrite == 0) return 0;
- var fd = _fileno(stream);
- var bytesWritten = _write(fd, ptr, bytesToWrite);
- if (bytesWritten == -1) {
- var streamObj = FS.getStreamFromPtr(stream);
- if (streamObj) streamObj.error = true;
- return 0;
- } else {
- return Math.floor(bytesWritten / size);
- }
- }
- Module["_strlen"] = _strlen;
- function __reallyNegative(x) {
- return x < 0 || (x === 0 && (1/x) === -Infinity);
- }function __formatString(format, varargs) {
- var textIndex = format;
- var argIndex = 0;
- function getNextArg(type) {
- // NOTE: Explicitly ignoring type safety. Otherwise this fails:
- // int x = 4; printf("%c\n", (char)x);
- var ret;
- if (type === 'double') {
- ret = HEAPF64[(((varargs)+(argIndex))>>3)];
- } else if (type == 'i64') {
- ret = [HEAP32[(((varargs)+(argIndex))>>2)],
- HEAP32[(((varargs)+(argIndex+4))>>2)]];
- } else {
- type = 'i32'; // varargs are always i32, i64, or double
- ret = HEAP32[(((varargs)+(argIndex))>>2)];
- }
- argIndex += Runtime.getNativeFieldSize(type);
- return ret;
- }
- var ret = [];
- var curr, next, currArg;
- while(1) {
- var startTextIndex = textIndex;
- curr = HEAP8[(textIndex)];
- if (curr === 0) break;
- next = HEAP8[((textIndex+1)|0)];
- if (curr == 37) {
- // Handle flags.
- var flagAlwaysSigned = false;
- var flagLeftAlign = false;
- var flagAlternative = false;
- var flagZeroPad = false;
- var flagPadSign = false;
- flagsLoop: while (1) {
- switch (next) {
- case 43:
- flagAlwaysSigned = true;
- break;
- case 45:
- flagLeftAlign = true;
- break;
- case 35:
- flagAlternative = true;
- break;
- case 48:
- if (flagZeroPad) {
- break flagsLoop;
- } else {
- flagZeroPad = true;
- break;
- }
- case 32:
- flagPadSign = true;
- break;
- default:
- break flagsLoop;
- }
- textIndex++;
- next = HEAP8[((textIndex+1)|0)];
- }
- // Handle width.
- var width = 0;
- if (next == 42) {
- width = getNextArg('i32');
- textIndex++;
- next = HEAP8[((textIndex+1)|0)];
- } else {
- while (next >= 48 && next <= 57) {
- width = width * 10 + (next - 48);
- textIndex++;
- next = HEAP8[((textIndex+1)|0)];
- }
- }
- // Handle precision.
- var precisionSet = false, precision = -1;
- if (next == 46) {
- precision = 0;
- precisionSet = true;
- textIndex++;
- next = HEAP8[((textIndex+1)|0)];
- if (next == 42) {
- precision = getNextArg('i32');
- textIndex++;
- } else {
- while(1) {
- var precisionChr = HEAP8[((textIndex+1)|0)];
- if (precisionChr < 48 ||
- precisionChr > 57) break;
- precision = precision * 10 + (precisionChr - 48);
- textIndex++;
- }
- }
- next = HEAP8[((textIndex+1)|0)];
- }
- if (precision < 0) {
- precision = 6; // Standard default.
- precisionSet = false;
- }
- // Handle integer sizes. WARNING: These assume a 32-bit architecture!
- var argSize;
- switch (String.fromCharCode(next)) {
- case 'h':
- var nextNext = HEAP8[((textIndex+2)|0)];
- if (nextNext == 104) {
- textIndex++;
- argSize = 1; // char (actually i32 in varargs)
- } else {
- argSize = 2; // short (actually i32 in varargs)
- }
- break;
- case 'l':
- var nextNext = HEAP8[((textIndex+2)|0)];
- if (nextNext == 108) {
- textIndex++;
- argSize = 8; // long long
- } else {
- argSize = 4; // long
- }
- break;
- case 'L': // long long
- case 'q': // int64_t
- case 'j': // intmax_t
- argSize = 8;
- break;
- case 'z': // size_t
- case 't': // ptrdiff_t
- case 'I': // signed ptrdiff_t or unsigned size_t
- argSize = 4;
- break;
- default:
- argSize = null;
- }
- if (argSize) textIndex++;
- next = HEAP8[((textIndex+1)|0)];
- // Handle type specifier.
- switch (String.fromCharCode(next)) {
- case 'd': case 'i': case 'u': case 'o': case 'x': case 'X': case 'p': {
- // Integer.
- var signed = next == 100 || next == 105;
- argSize = argSize || 4;
- var currArg = getNextArg('i' + (argSize * 8));
- var argText;
- // Flatten i64-1 [low, high] into a (slightly rounded) double
- if (argSize == 8) {
- currArg = Runtime.makeBigInt(currArg[0], currArg[1], next == 117);
- }
- // Truncate to requested size.
- if (argSize <= 4) {
- var limit = Math.pow(256, argSize) - 1;
- currArg = (signed ? reSign : unSign)(currArg & limit, argSize * 8);
- }
- // Format the number.
- var currAbsArg = Math.abs(currArg);
- var prefix = '';
- if (next == 100 || next == 105) {
- argText = reSign(currArg, 8 * argSize, 1).toString(10);
- } else if (next == 117) {
- argText = unSign(currArg, 8 * argSize, 1).toString(10);
- currArg = Math.abs(currArg);
- } else if (next == 111) {
- argText = (flagAlternative ? '0' : '') + currAbsArg.toString(8);
- } else if (next == 120 || next == 88) {
- prefix = (flagAlternative && currArg != 0) ? '0x' : '';
- if (currArg < 0) {
- // Represent negative numbers in hex as 2's complement.
- currArg = -currArg;
- argText = (currAbsArg - 1).toString(16);
- var buffer = [];
- for (var i = 0; i < argText.length; i++) {
- buffer.push((0xF - parseInt(argText[i], 16)).toString(16));
- }
- argText = buffer.join('');
- while (argText.length < argSize * 2) argText = 'f' + argText;
- } else {
- argText = currAbsArg.toString(16);
- }
- if (next == 88) {
- prefix = prefix.toUpperCase();
- argText = argText.toUpperCase();
- }
- } else if (next == 112) {
- if (currAbsArg === 0) {
- argText = '(nil)';
- } else {
- prefix = '0x';
- argText = currAbsArg.toString(16);
- }
- }
- if (precisionSet) {
- while (argText.length < precision) {
- argText = '0' + argText;
- }
- }
- // Add sign if needed
- if (currArg >= 0) {
- if (flagAlwaysSigned) {
- prefix = '+' + prefix;
- } else if (flagPadSign) {
- prefix = ' ' + prefix;
- }
- }
- // Move sign to prefix so we zero-pad after the sign
- if (argText.charAt(0) == '-') {
- prefix = '-' + prefix;
- argText = argText.substr(1);
- }
- // Add padding.
- while (prefix.length + argText.length < width) {
- if (flagLeftAlign) {
- argText += ' ';
- } else {
- if (flagZeroPad) {
- argText = '0' + argText;
- } else {
- prefix = ' ' + prefix;
- }
- }
- }
- // Insert the result into the buffer.
- argText = prefix + argText;
- argText.split('').forEach(function(chr) {
- ret.push(chr.charCodeAt(0));
- });
- break;
- }
- case 'f': case 'F': case 'e': case 'E': case 'g': case 'G': {
- // Float.
- var currArg = getNextArg('double');
- var argText;
- if (isNaN(currArg)) {
- argText = 'nan';
- flagZeroPad = false;
- } else if (!isFinite(currArg)) {
- argText = (currArg < 0 ? '-' : '') + 'inf';
- flagZeroPad = false;
- } else {
- var isGeneral = false;
- var effectivePrecision = Math.min(precision, 20);
- // Convert g/G to f/F or e/E, as per:
- // http://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html
- if (next == 103 || next == 71) {
- isGeneral = true;
- precision = precision || 1;
- var exponent = parseInt(currArg.toExponential(effectivePrecision).split('e')[1], 10);
- if (precision > exponent && exponent >= -4) {
- next = ((next == 103) ? 'f' : 'F').charCodeAt(0);
- precision -= exponent + 1;
- } else {
- next = ((next == 103) ? 'e' : 'E').charCodeAt(0);
- precision--;
- }
- effectivePrecision = Math.min(precision, 20);
- }
- if (next == 101 || next == 69) {
- argText = currArg.toExponential(effectivePrecision);
- // Make sure the exponent has at least 2 digits.
- if (/[eE][-+]\d$/.test(argText)) {
- argText = argText.slice(0, -1) + '0' + argText.slice(-1);
- }
- } else if (next == 102 || next == 70) {
- argText = currArg.toFixed(effectivePrecision);
- if (currArg === 0 && __reallyNegative(currArg)) {
- argText = '-' + argText;
- }
- }
- var parts = argText.split('e');
- if (isGeneral && !flagAlternative) {
- // Discard trailing zeros and periods.
- while (parts[0].length > 1 && parts[0].indexOf('.') != -1 &&
- (parts[0].slice(-1) == '0' || parts[0].slice(-1) == '.')) {
- parts[0] = parts[0].slice(0, -1);
- }
- } else {
- // Make sure we have a period in alternative mode.
- if (flagAlternative && argText.indexOf('.') == -1) parts[0] += '.';
- // Zero pad until required precision.
- while (precision > effectivePrecision++) parts[0] += '0';
- }
- argText = parts[0] + (parts.length > 1 ? 'e' + parts[1] : '');
- // Capitalize 'E' if needed.
- if (next == 69) argText = argText.toUpperCase();
- // Add sign.
- if (currArg >= 0) {
- if (flagAlwaysSigned) {
- argText = '+' + argText;
- } else if (flagPadSign) {
- argText = ' ' + argText;
- }
- }
- }
- // Add padding.
- while (argText.length < width) {
- if (flagLeftAlign) {
- argText += ' ';
- } else {
- if (flagZeroPad && (argText[0] == '-' || argText[0] == '+')) {
- argText = argText[0] + '0' + argText.slice(1);
- } else {
- argText = (flagZeroPad ? '0' : ' ') + argText;
- }
- }
- }
- // Adjust case.
- if (next < 97) argText = argText.toUpperCase();
- // Insert the result into the buffer.
- argText.split('').forEach(function(chr) {
- ret.push(chr.charCodeAt(0));
- });
- break;
- }
- case 's': {
- // String.
- var arg = getNextArg('i8*');
- var argLength = arg ? _strlen(arg) : '(null)'.length;
- if (precisionSet) argLength = Math.min(argLength, precision);
- if (!flagLeftAlign) {
- while (argLength < width--) {
- ret.push(32);
- }
- }
- if (arg) {
- for (var i = 0; i < argLength; i++) {
- ret.push(HEAPU8[((arg++)|0)]);
- }
- } else {
- ret = ret.concat(intArrayFromString('(null)'.substr(0, argLength), true));
- }
- if (flagLeftAlign) {
- while (argLength < width--) {
- ret.push(32);
- }
- }
- break;
- }
- case 'c': {
- // Character.
- if (flagLeftAlign) ret.push(getNextArg('i8'));
- while (--width > 0) {
- ret.push(32);
- }
- if (!flagLeftAlign) ret.push(getNextArg('i8'));
- break;
- }
- case 'n': {
- // Write the length written so far to the next parameter.
- var ptr = getNextArg('i32*');
- HEAP32[((ptr)>>2)]=ret.length;
- break;
- }
- case '%': {
- // Literal percent sign.
- ret.push(curr);
- break;
- }
- default: {
- // Unknown specifiers remain untouched.
- for (var i = startTextIndex; i < textIndex + 2; i++) {
- ret.push(HEAP8[(i)]);
- }
- }
- }
- textIndex += 2;
- // TODO: Support a/A (hex float) and m (last error) specifiers.
- // TODO: Support %1${specifier} for arg selection.
- } else {
- ret.push(curr);
- textIndex += 1;
- }
- }
- return ret;
- }function _fprintf(stream, format, varargs) {
- // int fprintf(FILE *restrict stream, const char *restrict format, ...);
- // http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
- var result = __formatString(format, varargs);
- var stack = Runtime.stackSave();
- var ret = _fwrite(allocate(result, 'i8', ALLOC_STACK), 1, result.length, stream);
- Runtime.stackRestore(stack);
- return ret;
- }function _printf(format, varargs) {
- // int printf(const char *restrict format, ...);
- // http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
- var stdout = HEAP32[((_stdout)>>2)];
- return _fprintf(stdout, format, varargs);
- }
- Module["_memset"] = _memset;
- function _emscripten_memcpy_big(dest, src, num) {
- HEAPU8.set(HEAPU8.subarray(src, src+num), dest);
- return dest;
- }
- Module["_memcpy"] = _memcpy;
- function _free() {
- }
- Module["_free"] = _free;
- Module["requestFullScreen"] = function Module_requestFullScreen(lockPointer, resizeCanvas) { Browser.requestFullScreen(lockPointer, resizeCanvas) };
- Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) { Browser.requestAnimationFrame(func) };
- Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) };
- Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.pause() };
- Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop.resume() };
- Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia() }
- FS.staticInit();__ATINIT__.unshift({ func: function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() } });__ATMAIN__.push({ func: function() { FS.ignorePermissions = false } });__ATEXIT__.push({ func: function() { FS.quit() } });Module["FS_createFolder"] = FS.createFolder;Module["FS_createPath"] = FS.createPath;Module["FS_createDataFile"] = FS.createDataFile;Module["FS_createPreloadedFile"] = FS.createPreloadedFile;Module["FS_createLazyFile"] = FS.createLazyFile;Module["FS_createLink"] = FS.createLink;Module["FS_createDevice"] = FS.createDevice;
- ___errno_state = Runtime.staticAlloc(4); HEAP32[((___errno_state)>>2)]=0;
- __ATINIT__.unshift({ func: function() { TTY.init() } });__ATEXIT__.push({ func: function() { TTY.shutdown() } });TTY.utf8 = new Runtime.UTF8Processor();
- if (ENVIRONMENT_IS_NODE) { var fs = require("fs"); NODEFS.staticInit(); }
- __ATINIT__.push({ func: function() { SOCKFS.root = FS.mount(SOCKFS, {}, null); } });
- STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP);
- staticSealed = true; // seal the static portion of memory
- STACK_MAX = STACK_BASE + 5242880;
- DYNAMIC_BASE = DYNAMICTOP = Runtime.alignMemory(STACK_MAX);
- assert(DYNAMIC_BASE < TOTAL_MEMORY, "TOTAL_MEMORY not big enough for stack");
- var Math_min = Math.min;
- function asmPrintInt(x, y) {
- Module.print('int ' + x + ',' + y);// + ' ' + new Error().stack);
- }
- function asmPrintFloat(x, y) {
- Module.print('float ' + x + ',' + y);// + ' ' + new Error().stack);
- }
- // EMSCRIPTEN_START_ASM
- var asm = (function(global, env, buffer) {
- 'use asm';
- var HEAP8 = new global.Int8Array(buffer);
- var HEAP16 = new global.Int16Array(buffer);
- var HEAP32 = new global.Int32Array(buffer);
- var HEAPU8 = new global.Uint8Array(buffer);
- var HEAPU16 = new global.Uint16Array(buffer);
- var HEAPU32 = new global.Uint32Array(buffer);
- var HEAPF32 = new global.Float32Array(buffer);
- var HEAPF64 = new global.Float64Array(buffer);
- var STACKTOP=env.STACKTOP|0;
- var STACK_MAX=env.STACK_MAX|0;
- var tempDoublePtr=env.tempDoublePtr|0;
- var ABORT=env.ABORT|0;
- var __THREW__ = 0;
- var threwValue = 0;
- var setjmpId = 0;
- var undef = 0;
- var nan = +env.NaN, inf = +env.Infinity;
- var tempInt = 0, tempBigInt = 0, tempBigIntP = 0, tempBigIntS = 0, tempBigIntR = 0.0, tempBigIntI = 0, tempBigIntD = 0, tempValue = 0, tempDouble = 0.0;
- var tempRet0 = 0;
- var tempRet1 = 0;
- var tempRet2 = 0;
- var tempRet3 = 0;
- var tempRet4 = 0;
- var tempRet5 = 0;
- var tempRet6 = 0;
- var tempRet7 = 0;
- var tempRet8 = 0;
- var tempRet9 = 0;
- var Math_floor=global.Math.floor;
- var Math_abs=global.Math.abs;
- var Math_sqrt=global.Math.sqrt;
- var Math_pow=global.Math.pow;
- var Math_cos=global.Math.cos;
- var Math_sin=global.Math.sin;
- var Math_tan=global.Math.tan;
- var Math_acos=global.Math.acos;
- var Math_asin=global.Math.asin;
- var Math_atan=global.Math.atan;
- var Math_atan2=global.Math.atan2;
- var Math_exp=global.Math.exp;
- var Math_log=global.Math.log;
- var Math_ceil=global.Math.ceil;
- var Math_imul=global.Math.imul;
- var abort=env.abort;
- var assert=env.assert;
- var asmPrintInt=env.asmPrintInt;
- var asmPrintFloat=env.asmPrintFloat;
- var Math_min=env.min;
- var _free=env._free;
- var _emscripten_memcpy_big=env._emscripten_memcpy_big;
- var _printf=env._printf;
- var _send=env._send;
- var _pwrite=env._pwrite;
- var __reallyNegative=env.__reallyNegative;
- var _fwrite=env._fwrite;
- var _malloc=env._malloc;
- var _mkport=env._mkport;
- var _fprintf=env._fprintf;
- var ___setErrNo=env.___setErrNo;
- var __formatString=env.__formatString;
- var _fileno=env._fileno;
- var _fflush=env._fflush;
- var _write=env._write;
- var tempFloat = 0.0;
- // EMSCRIPTEN_START_FUNCS
- function _main(i3, i5) {
- i3 = i3 | 0;
- i5 = i5 | 0;
- var i1 = 0, i2 = 0, i4 = 0, i6 = 0, i7 = 0, i8 = 0, i9 = 0, i10 = 0, i11 = 0, i12 = 0, i13 = 0, i14 = 0, i15 = 0, i16 = 0, i17 = 0, i18 = 0, i19 = 0;
- i1 = STACKTOP;
- STACKTOP = STACKTOP + 16 | 0;
- i2 = i1;
- L1 : do {
- if ((i3 | 0) > 1) {
- i3 = HEAP8[HEAP32[i5 + 4 >> 2] | 0] | 0;
- switch (i3 | 0) {
- case 50:
- {
- i3 = 625;
- break L1;
- }
- case 51:
- {
- i4 = 4;
- break L1;
- }
- case 52:
- {
- i3 = 6250;
- break L1;
- }
- case 53:
- {
- i3 = 12500;
- break L1;
- }
- case 49:
- {
- i3 = 75;
- break L1;
- }
- case 48:
- {
- i12 = 0;
- STACKTOP = i1;
- return i12 | 0;
- }
- default:
- {
- HEAP32[i2 >> 2] = i3 + -48;
- _printf(8, i2 | 0) | 0;
- i12 = -1;
- STACKTOP = i1;
- return i12 | 0;
- }
- }
- } else {
- i4 = 4;
- }
- } while (0);
- if ((i4 | 0) == 4) {
- i3 = 1250;
- }
- i4 = 0;
- i12 = 0;
- do {
- i9 = (i4 | 0) % 10 | 0;
- i5 = i9 + i4 | 0;
- i6 = (i4 | 0) % 255 | 0;
- i8 = (i4 | 0) % 15 | 0;
- i10 = ((i4 | 0) % 120 | 0 | 0) % 1024 | 0;
- i11 = ((i4 | 0) % 1024 | 0) + i4 | 0;
- i5 = ((i5 | 0) % 1024 | 0) + i5 | 0;
- i8 = ((i8 | 0) % 1024 | 0) + i8 | 0;
- i6 = (((i6 | 0) % 1024 | 0) + i6 + i10 | 0) % 1024 | 0;
- i7 = 0;
- do {
- i17 = i7 << 1;
- i14 = (i7 | 0) % 120 | 0;
- i18 = (i17 | 0) % 1024 | 0;
- i19 = (i9 + i7 | 0) % 1024 | 0;
- i16 = ((i7 | 0) % 255 | 0 | 0) % 1024 | 0;
- i15 = (i7 | 0) % 1024 | 0;
- i13 = ((i7 | 0) % 15 | 0 | 0) % 1024 | 0;
- i12 = (((i19 + i18 + i16 + i10 + i15 + i13 + ((i11 + i19 | 0) % 1024 | 0) + ((i5 + i18 | 0) % 1024 | 0) + ((i18 + i17 + i16 | 0) % 1024 | 0) + i6 + ((i8 + i15 | 0) % 1024 | 0) + ((((i14 | 0) % 1024 | 0) + i14 + i13 | 0) % 1024 | 0) | 0) % 100 | 0) + i12 | 0) % 10240 | 0;
- i7 = i7 + 1 | 0;
- } while ((i7 | 0) != 5e4);
- i4 = i4 + 1 | 0;
- } while ((i4 | 0) < (i3 | 0));
- HEAP32[i2 >> 2] = i12;
- _printf(24, i2 | 0) | 0;
- i19 = 0;
- STACKTOP = i1;
- return i19 | 0;
- }
- function _memcpy(i3, i2, i1) {
- i3 = i3 | 0;
- i2 = i2 | 0;
- i1 = i1 | 0;
- var i4 = 0;
- if ((i1 | 0) >= 4096) return _emscripten_memcpy_big(i3 | 0, i2 | 0, i1 | 0) | 0;
- i4 = i3 | 0;
- if ((i3 & 3) == (i2 & 3)) {
- while (i3 & 3) {
- if ((i1 | 0) == 0) return i4 | 0;
- HEAP8[i3] = HEAP8[i2] | 0;
- i3 = i3 + 1 | 0;
- i2 = i2 + 1 | 0;
- i1 = i1 - 1 | 0;
- }
- while ((i1 | 0) >= 4) {
- HEAP32[i3 >> 2] = HEAP32[i2 >> 2];
- i3 = i3 + 4 | 0;
- i2 = i2 + 4 | 0;
- i1 = i1 - 4 | 0;
- }
- }
- while ((i1 | 0) > 0) {
- HEAP8[i3] = HEAP8[i2] | 0;
- i3 = i3 + 1 | 0;
- i2 = i2 + 1 | 0;
- i1 = i1 - 1 | 0;
- }
- return i4 | 0;
- }
- function _memset(i1, i4, i3) {
- i1 = i1 | 0;
- i4 = i4 | 0;
- i3 = i3 | 0;
- var i2 = 0, i5 = 0, i6 = 0, i7 = 0;
- i2 = i1 + i3 | 0;
- if ((i3 | 0) >= 20) {
- i4 = i4 & 255;
- i7 = i1 & 3;
- i6 = i4 | i4 << 8 | i4 << 16 | i4 << 24;
- i5 = i2 & ~3;
- if (i7) {
- i7 = i1 + 4 - i7 | 0;
- while ((i1 | 0) < (i7 | 0)) {
- HEAP8[i1] = i4;
- i1 = i1 + 1 | 0;
- }
- }
- while ((i1 | 0) < (i5 | 0)) {
- HEAP32[i1 >> 2] = i6;
- i1 = i1 + 4 | 0;
- }
- }
- while ((i1 | 0) < (i2 | 0)) {
- HEAP8[i1] = i4;
- i1 = i1 + 1 | 0;
- }
- return i1 - i3 | 0;
- }
- function copyTempDouble(i1) {
- i1 = i1 | 0;
- HEAP8[tempDoublePtr] = HEAP8[i1];
- HEAP8[tempDoublePtr + 1 | 0] = HEAP8[i1 + 1 | 0];
- HEAP8[tempDoublePtr + 2 | 0] = HEAP8[i1 + 2 | 0];
- HEAP8[tempDoublePtr + 3 | 0] = HEAP8[i1 + 3 | 0];
- HEAP8[tempDoublePtr + 4 | 0] = HEAP8[i1 + 4 | 0];
- HEAP8[tempDoublePtr + 5 | 0] = HEAP8[i1 + 5 | 0];
- HEAP8[tempDoublePtr + 6 | 0] = HEAP8[i1 + 6 | 0];
- HEAP8[tempDoublePtr + 7 | 0] = HEAP8[i1 + 7 | 0];
- }
- function copyTempFloat(i1) {
- i1 = i1 | 0;
- HEAP8[tempDoublePtr] = HEAP8[i1];
- HEAP8[tempDoublePtr + 1 | 0] = HEAP8[i1 + 1 | 0];
- HEAP8[tempDoublePtr + 2 | 0] = HEAP8[i1 + 2 | 0];
- HEAP8[tempDoublePtr + 3 | 0] = HEAP8[i1 + 3 | 0];
- }
- function runPostSets() {}
- function _strlen(i1) {
- i1 = i1 | 0;
- var i2 = 0;
- i2 = i1;
- while (HEAP8[i2] | 0) {
- i2 = i2 + 1 | 0;
- }
- return i2 - i1 | 0;
- }
- function stackAlloc(i1) {
- i1 = i1 | 0;
- var i2 = 0;
- i2 = STACKTOP;
- STACKTOP = STACKTOP + i1 | 0;
- STACKTOP = STACKTOP + 7 & -8;
- return i2 | 0;
- }
- function setThrew(i1, i2) {
- i1 = i1 | 0;
- i2 = i2 | 0;
- if ((__THREW__ | 0) == 0) {
- __THREW__ = i1;
- threwValue = i2;
- }
- }
- function stackRestore(i1) {
- i1 = i1 | 0;
- STACKTOP = i1;
- }
- function setTempRet9(i1) {
- i1 = i1 | 0;
- tempRet9 = i1;
- }
- function setTempRet8(i1) {
- i1 = i1 | 0;
- tempRet8 = i1;
- }
- function setTempRet7(i1) {
- i1 = i1 | 0;
- tempRet7 = i1;
- }
- function setTempRet6(i1) {
- i1 = i1 | 0;
- tempRet6 = i1;
- }
- function setTempRet5(i1) {
- i1 = i1 | 0;
- tempRet5 = i1;
- }
- function setTempRet4(i1) {
- i1 = i1 | 0;
- tempRet4 = i1;
- }
- function setTempRet3(i1) {
- i1 = i1 | 0;
- tempRet3 = i1;
- }
- function setTempRet2(i1) {
- i1 = i1 | 0;
- tempRet2 = i1;
- }
- function setTempRet1(i1) {
- i1 = i1 | 0;
- tempRet1 = i1;
- }
- function setTempRet0(i1) {
- i1 = i1 | 0;
- tempRet0 = i1;
- }
- function stackSave() {
- return STACKTOP | 0;
- }
- // EMSCRIPTEN_END_FUNCS
- return { _strlen: _strlen, _memcpy: _memcpy, _main: _main, _memset: _memset, runPostSets: runPostSets, stackAlloc: stackAlloc, stackSave: stackSave, stackRestore: stackRestore, setThrew: setThrew, setTempRet0: setTempRet0, setTempRet1: setTempRet1, setTempRet2: setTempRet2, setTempRet3: setTempRet3, setTempRet4: setTempRet4, setTempRet5: setTempRet5, setTempRet6: setTempRet6, setTempRet7: setTempRet7, setTempRet8: setTempRet8, setTempRet9: setTempRet9 };
- })
- // EMSCRIPTEN_END_ASM
- ({ "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array }, { "abort": abort, "assert": assert, "asmPrintInt": asmPrintInt, "asmPrintFloat": asmPrintFloat, "min": Math_min, "_free": _free, "_emscripten_memcpy_big": _emscripten_memcpy_big, "_printf": _printf, "_send": _send, "_pwrite": _pwrite, "__reallyNegative": __reallyNegative, "_fwrite": _fwrite, "_malloc": _malloc, "_mkport": _mkport, "_fprintf": _fprintf, "___setErrNo": ___setErrNo, "__formatString": __formatString, "_fileno": _fileno, "_fflush": _fflush, "_write": _write, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT, "NaN": NaN, "Infinity": Infinity }, buffer);
- var _strlen = Module["_strlen"] = asm["_strlen"];
- var _memcpy = Module["_memcpy"] = asm["_memcpy"];
- var _main = Module["_main"] = asm["_main"];
- var _memset = Module["_memset"] = asm["_memset"];
- var runPostSets = Module["runPostSets"] = asm["runPostSets"];
- Runtime.stackAlloc = function(size) { return asm['stackAlloc'](size) };
- Runtime.stackSave = function() { return asm['stackSave']() };
- Runtime.stackRestore = function(top) { asm['stackRestore'](top) };
- // Warning: printing of i64 values may be slightly rounded! No deep i64 math used, so precise i64 code not included
- var i64Math = null;
- // === Auto-generated postamble setup entry stuff ===
- if (memoryInitializer) {
- if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {
- var data = Module['readBinary'](memoryInitializer);
- HEAPU8.set(data, STATIC_BASE);
- } else {
- addRunDependency('memory initializer');
- Browser.asyncLoad(memoryInitializer, function(data) {
- HEAPU8.set(data, STATIC_BASE);
- removeRunDependency('memory initializer');
- }, function(data) {
- throw 'could not load memory initializer ' + memoryInitializer;
- });
- }
- }
- function ExitStatus(status) {
- this.name = "ExitStatus";
- this.message = "Program terminated with exit(" + status + ")";
- this.status = status;
- };
- ExitStatus.prototype = new Error();
- ExitStatus.prototype.constructor = ExitStatus;
- var initialStackTop;
- var preloadStartTime = null;
- var calledMain = false;
- dependenciesFulfilled = function runCaller() {
- // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
- if (!Module['calledRun'] && shouldRunNow) run([].concat(Module["arguments"]));
- if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
- }
- Module['callMain'] = Module.callMain = function callMain(args) {
- assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
- assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
- args = args || [];
- ensureInitRuntime();
- var argc = args.length+1;
- function pad() {
- for (var i = 0; i < 4-1; i++) {
- argv.push(0);
- }
- }
- var argv = [allocate(intArrayFromString("/bin/this.program"), 'i8', ALLOC_NORMAL) ];
- pad();
- for (var i = 0; i < argc-1; i = i + 1) {
- argv.push(allocate(intArrayFromString(args[i]), 'i8', ALLOC_NORMAL));
- pad();
- }
- argv.push(0);
- argv = allocate(argv, 'i32', ALLOC_NORMAL);
- initialStackTop = STACKTOP;
- try {
- var ret = Module['_main'](argc, argv, 0);
- // if we're not running an evented main loop, it's time to exit
- if (!Module['noExitRuntime']) {
- exit(ret);
- }
- }
- catch(e) {
- if (e instanceof ExitStatus) {
- // exit() throws this once it's done to make sure execution
- // has been stopped completely
- return;
- } else if (e == 'SimulateInfiniteLoop') {
- // running an evented main loop, don't immediately exit
- Module['noExitRuntime'] = true;
- return;
- } else {
- if (e && typeof e === 'object' && e.stack) Module.printErr('exception thrown: ' + [e, e.stack]);
- throw e;
- }
- } finally {
- calledMain = true;
- }
- }
- function run(args) {
- args = args || Module['arguments'];
- if (preloadStartTime === null) preloadStartTime = Date.now();
- if (runDependencies > 0) {
- Module.printErr('run() called, but dependencies remain, so not running');
- return;
- }
- preRun();
- if (runDependencies > 0) return; // a preRun added a dependency, run will be called later
- if (Module['calledRun']) return; // run may have just been called through dependencies being fulfilled just in this very frame
- function doRun() {
- if (Module['calledRun']) return; // run may have just been called while the async setStatus time below was happening
- Module['calledRun'] = true;
- ensureInitRuntime();
- preMain();
- if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) {
- Module.printErr('pre-main prep time: ' + (Date.now() - preloadStartTime) + ' ms');
- }
- if (Module['_main'] && shouldRunNow) {
- Module['callMain'](args);
- }
- postRun();
- }
- if (Module['setStatus']) {
- Module['setStatus']('Running...');
- setTimeout(function() {
- setTimeout(function() {
- Module['setStatus']('');
- }, 1);
- if (!ABORT) doRun();
- }, 1);
- } else {
- doRun();
- }
- }
- Module['run'] = Module.run = run;
- function exit(status) {
- ABORT = true;
- EXITSTATUS = status;
- STACKTOP = initialStackTop;
- // exit the runtime
- exitRuntime();
- // TODO We should handle this differently based on environment.
- // In the browser, the best we can do is throw an exception
- // to halt execution, but in node we could process.exit and
- // I'd imagine SM shell would have something equivalent.
- // This would let us set a proper exit status (which
- // would be great for checking test exit statuses).
- // https://github.com/kripken/emscripten/issues/1371
- // throw an exception to halt the current execution
- throw new ExitStatus(status);
- }
- Module['exit'] = Module.exit = exit;
- function abort(text) {
- if (text) {
- Module.print(text);
- Module.printErr(text);
- }
- ABORT = true;
- EXITSTATUS = 1;
- var extra = '\nIf this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.';
- throw 'abort() at ' + stackTrace() + extra;
- }
- Module['abort'] = Module.abort = abort;
- // {{PRE_RUN_ADDITIONS}}
- if (Module['preInit']) {
- if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
- while (Module['preInit'].length > 0) {
- Module['preInit'].pop()();
- }
- }
- // shouldRunNow refers to calling main(), not run().
- var shouldRunNow = true;
- if (Module['noInitialRun']) {
- shouldRunNow = false;
- }
- run([].concat(Module["arguments"]));