/js/src/jsgcstats.cpp
http://github.com/zpao/v8monkey · C++ · 162 lines · 110 code · 15 blank · 37 comment · 11 complexity · 5b5bddbaf5bdf929f3d12b35deecab43 MD5 · raw file
- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- * vim: set ts=4 sw=4 et tw=99 ft=cpp:
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released
- * June 30, 2010
- *
- * The Initial Developer of the Original Code is
- * the Mozilla Corporation.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- #include "mozilla/Util.h"
- #include "jstypes.h"
- #include "jscntxt.h"
- #include "jsgcstats.h"
- #include "jsgc.h"
- #include "jsxml.h"
- #include "jscompartment.h"
- #include "jsgcinlines.h"
- #include "jsobjinlines.h"
- using namespace mozilla;
- using namespace js;
- using namespace js::gc;
- #define UL(x) ((unsigned long)(x))
- #define PERCENT(x,y) (100.0 * (double) (x) / (double) (y))
- namespace js {
- namespace gc {
- #if defined(JS_DUMP_CONSERVATIVE_GC_ROOTS)
- void
- ConservativeGCStats::dump(FILE *fp)
- {
- size_t words = 0;
- for (size_t i = 0; i < ArrayLength(counter); ++i)
- words += counter[i];
-
- #define ULSTAT(x) ((unsigned long)(x))
- fprintf(fp, "CONSERVATIVE STACK SCANNING:\n");
- fprintf(fp, " number of stack words: %lu\n", ULSTAT(words));
- fprintf(fp, " excluded, low bit set: %lu\n", ULSTAT(counter[CGCT_LOWBITSET]));
- fprintf(fp, " not withing a chunk: %lu\n", ULSTAT(counter[CGCT_NOTCHUNK]));
- fprintf(fp, " not within arena range: %lu\n", ULSTAT(counter[CGCT_NOTARENA]));
- fprintf(fp, " in another compartment: %lu\n", ULSTAT(counter[CGCT_OTHERCOMPARTMENT]));
- fprintf(fp, " points to free arena: %lu\n", ULSTAT(counter[CGCT_FREEARENA]));
- fprintf(fp, " excluded, not live: %lu\n", ULSTAT(counter[CGCT_NOTLIVE]));
- fprintf(fp, " valid GC things: %lu\n", ULSTAT(counter[CGCT_VALID]));
- fprintf(fp, " valid but not aligned: %lu\n", ULSTAT(unaligned));
- #undef ULSTAT
- }
- #endif
- } //gc
- #ifdef JS_DUMP_CONSERVATIVE_GC_ROOTS
- void
- GCMarker::dumpConservativeRoots()
- {
- if (!conservativeDumpFileName)
- return;
- FILE *fp;
- if (!strcmp(conservativeDumpFileName, "stdout")) {
- fp = stdout;
- } else if (!strcmp(conservativeDumpFileName, "stderr")) {
- fp = stderr;
- } else if (!(fp = fopen(conservativeDumpFileName, "aw"))) {
- fprintf(stderr,
- "Warning: cannot open %s to dump the conservative roots\n",
- conservativeDumpFileName);
- return;
- }
- conservativeStats.dump(fp);
- for (void **thingp = conservativeRoots.begin(); thingp != conservativeRoots.end(); ++thingp) {
- void *thing = thingp;
- fprintf(fp, " %p: ", thing);
- switch (GetGCThingTraceKind(thing)) {
- case JSTRACE_OBJECT: {
- JSObject *obj = (JSObject *) thing;
- fprintf(fp, "object %s", obj->getClass()->name);
- break;
- }
- case JSTRACE_STRING: {
- JSString *str = (JSString *) thing;
- if (str->isLinear()) {
- char buf[50];
- PutEscapedString(buf, sizeof buf, &str->asLinear(), '"');
- fprintf(fp, "string %s", buf);
- } else {
- fprintf(fp, "rope: length %d", (int)str->length());
- }
- break;
- }
- case JSTRACE_SCRIPT: {
- fprintf(fp, "shape");
- break;
- }
- case JSTRACE_SHAPE: {
- fprintf(fp, "shape");
- break;
- }
- case JSTRACE_BASE_SHAPE: {
- fprintf(fp, "base_shape");
- break;
- }
- case JSTRACE_TYPE_OBJECT: {
- fprintf(fp, "type_object");
- break;
- }
- # if JS_HAS_XML_SUPPORT
- case JSTRACE_XML: {
- JSXML *xml = (JSXML *) thing;
- fprintf(fp, "xml %u", (unsigned)xml->xml_class);
- break;
- }
- # endif
- }
- fputc('\n', fp);
- }
- fputc('\n', fp);
- if (fp != stdout && fp != stderr)
- fclose(fp);
- }
- #endif /* JS_DUMP_CONSERVATIVE_GC_ROOTS */
- } /* namespace js */