scoped_native_library.cc revision ddb351dbec246cf1fab5ec20d2d5520909041de1 
1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "base/memory/scoped_native_library.h"
6
7namespace base {
8
9ScopedNativeLibrary::ScopedNativeLibrary() : library_(NULL) {
10}
11
12ScopedNativeLibrary::ScopedNativeLibrary(NativeLibrary library)
13    : library_(library) {
14}
15
16ScopedNativeLibrary::ScopedNativeLibrary(const FilePath& library_path) {
17  library_ = base::LoadNativeLibrary(library_path, NULL);
18}
19
20ScopedNativeLibrary::~ScopedNativeLibrary() {
21  if (library_)
22    base::UnloadNativeLibrary(library_);
23}
24
25void* ScopedNativeLibrary::GetFunctionPointer(
26    const char* function_name) const {
27  if (!library_)
28    return NULL;
29  return base::GetFunctionPointerFromNativeLibrary(library_, function_name);
30}
31
32void ScopedNativeLibrary::Reset(NativeLibrary library) {
33  if (library_)
34    base::UnloadNativeLibrary(library_);
35  library_ = library;
36}
37
38NativeLibrary ScopedNativeLibrary::Release() {
39  NativeLibrary result = library_;
40  library_ = NULL;
41  return result;
42}
43
44}  // namespace base
45