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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/native_library.h"
#include <dlfcn.h>
#include "base/file_path.h"
#include "base/logging.h"
#include "base/threading/thread_restrictions.h"
#include "base/utf_string_conversions.h"
namespace base {
// static
NativeLibrary LoadNativeLibrary(const FilePath& library_path,
std::string* error) {
// dlopen() opens the file off disk.
base::ThreadRestrictions::AssertIOAllowed();
// We deliberately do not use RTLD_DEEPBIND. For the history why, please
// refer to the bug tracker. Some useful bug reports to read include:
// http://crbug.com/17943, http://crbug.com/17557, http://crbug.com/36892,
// and http://crbug.com/40794.
void* dl = dlopen(library_path.value().c_str(), RTLD_LAZY);
if (!dl && error)
*error = dlerror();
return dl;
}
// static
void UnloadNativeLibrary(NativeLibrary library) {
int ret = dlclose(library);
if (ret < 0) {
DLOG(ERROR) << "dlclose failed: " << dlerror();
NOTREACHED();
}
}
// static
void* GetFunctionPointerFromNativeLibrary(NativeLibrary library,
const char* name) {
return dlsym(library, name);
}
// static
string16 GetNativeLibraryName(const string16& name) {
return ASCIIToUTF16("lib") + name + ASCIIToUTF16(".so");
}
} // namespace base
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