base/base_paths_android.cc

   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/file_util.h"
  14 #include "base/files/file_path.h"
  15 #include "base/logging.h"
  16 #include "base/process/process_metrics.h"
  17
  18 namespace base {
  19
  20 bool 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_HOME:
  51       *result = GetHomeDir();
  52       return true;
  53     case base::DIR_ANDROID_EXTERNAL_STORAGE:
  54       return base::android::GetExternalStorageDirectory(result);
  55     default:
  56       // Note: the path system expects this function to override the default
  57       // behavior. So no need to log an error if we don't support a given
  58       // path. The system will just use the default.
  59       return false;
  60   }
  61 }
  62
  63 }  // namespace base