1// Copyright (c) 2012 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// Defines base::PathProviderAndroid which replaces base::PathProviderPosix for
6// Android in base/path_service.cc.
7
8#include <unistd.h>
9
10#include "base/android/jni_android.h"
11#include "base/android/path_utils.h"
12#include "base/base_paths.h"
13#include "base/files/file_path.h"
14#include "base/files/file_util.h"
15#include "base/logging.h"
16#include "base/process/process_metrics.h"
17
18namespace base {
19
20bool PathProviderAndroid(int key, FilePath* result) {
21  switch (key) {
22    case base::FILE_EXE: {
23      char bin_dir[PATH_MAX + 1];
24      int bin_dir_size = readlink(kProcSelfExe, bin_dir, PATH_MAX);
25      if (bin_dir_size < 0 || bin_dir_size > PATH_MAX) {
26        NOTREACHED() << "Unable to resolve " << kProcSelfExe << ".";
27        return false;
28      }
29      bin_dir[bin_dir_size] = 0;
30      *result = FilePath(bin_dir);
31      return true;
32    }
33    case base::FILE_MODULE:
34      // dladdr didn't work in Android as only the file name was returned.
35      NOTIMPLEMENTED();
36      return false;
37    case base::DIR_MODULE:
38      return base::android::GetNativeLibraryDirectory(result);
39    case base::DIR_SOURCE_ROOT:
40      // This const is only used for tests.
41      return base::android::GetExternalStorageDirectory(result);
42    case base::DIR_USER_DESKTOP:
43      // Android doesn't support GetUserDesktop.
44      NOTIMPLEMENTED();
45      return false;
46    case base::DIR_CACHE:
47      return base::android::GetCacheDirectory(result);
48    case base::DIR_ANDROID_APP_DATA:
49      return base::android::GetDataDirectory(result);
50    case base::DIR_ANDROID_EXTERNAL_STORAGE:
51      return base::android::GetExternalStorageDirectory(result);
52    default:
53      // Note: the path system expects this function to override the default
54      // behavior. So no need to log an error if we don't support a given
55      // path. The system will just use the default.
56      return false;
57  }
58}
59
60}  // namespace base
61