54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
|
// 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/files/file_path.h"
|
||
|
|
#include "base/logging.h"
|
||
|
|
#include "base/strings/utf_string_conversions.h"
|
||
|
|
#include "base/threading/thread_restrictions.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
|