llvm-mirror/lib/Support/PluginLoader.cpp
Chandler Carruth a490793037 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00

48 lines
1.6 KiB
C++

//===-- 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];
}