/3rd_party/llvm/lib/Support/PluginLoader.cpp
https://code.google.com/p/softart/ · C++ · 47 lines · 30 code · 5 blank · 12 comment · 3 complexity · 837e418b5b543bc6a0bea9ee52dca636 MD5 · raw file
- //===-- PluginLoader.cpp - Implement -load command line option ------------===//
- //
- // The LLVM Compiler Infrastructure
- //
- // This file is distributed under the University of Illinois Open Source
- // License. See LICENSE.TXT for details.
- //
- //===----------------------------------------------------------------------===//
- //
- // This file implements the -load <plugin> command line option handler.
- //
- //===----------------------------------------------------------------------===//
- #define DONT_GET_PLUGIN_LOADER_OPTION
- #include "llvm/Support/PluginLoader.h"
- #include "llvm/Support/DynamicLibrary.h"
- #include "llvm/Support/ManagedStatic.h"
- #include "llvm/Support/Mutex.h"
- #include "llvm/Support/raw_ostream.h"
- #include <vector>
- using namespace llvm;
- static ManagedStatic<std::vector<std::string> > Plugins;
- static ManagedStatic<sys::SmartMutex<true> > PluginsLock;
- void PluginLoader::operator=(const std::string &Filename) {
- sys::SmartScopedLock<true> Lock(*PluginsLock);
- std::string Error;
- if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) {
- errs() << "Error opening '" << Filename << "': " << Error
- << "\n -load request ignored.\n";
- } else {
- Plugins->push_back(Filename);
- }
- }
- unsigned PluginLoader::getNumPlugins() {
- sys::SmartScopedLock<true> Lock(*PluginsLock);
- return Plugins.isConstructed() ? Plugins->size() : 0;
- }
- std::string &PluginLoader::getPlugin(unsigned num) {
- sys::SmartScopedLock<true> Lock(*PluginsLock);
- assert(Plugins.isConstructed() && num < Plugins->size() &&
- "Asking for an out of bounds plugin");
- return (*Plugins)[num];
- }