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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <jni.h> | 5 #include <jni.h> |
6 | 6 |
7 #include "base/android/apk_assets.h" | 7 #include "base/android/apk_assets.h" |
8 | 8 |
9 #include "base/android/context_utils.h" | |
10 #include "base/android/jni_array.h" | 9 #include "base/android/jni_array.h" |
11 #include "base/android/jni_string.h" | 10 #include "base/android/jni_string.h" |
12 #include "base/android/scoped_java_ref.h" | 11 #include "base/android/scoped_java_ref.h" |
13 #include "base/file_descriptor_store.h" | 12 #include "base/file_descriptor_store.h" |
14 #include "jni/ApkAssets_jni.h" | 13 #include "jni/ApkAssets_jni.h" |
15 | 14 |
16 namespace base { | 15 namespace base { |
17 namespace android { | 16 namespace android { |
18 | 17 |
19 int OpenApkAsset(const std::string& file_path, | 18 int OpenApkAsset(const std::string& file_path, |
20 base::MemoryMappedFile::Region* region) { | 19 base::MemoryMappedFile::Region* region) { |
21 // The AssetManager API of the NDK does not expose a method for accessing raw | 20 // The AssetManager API of the NDK does not expose a method for accessing raw |
22 // resources :( | 21 // resources :( |
23 JNIEnv* env = base::android::AttachCurrentThread(); | 22 JNIEnv* env = base::android::AttachCurrentThread(); |
24 ScopedJavaLocalRef<jlongArray> jarr = Java_ApkAssets_open( | 23 ScopedJavaLocalRef<jlongArray> jarr = Java_ApkAssets_open( |
25 env, base::android::GetApplicationContext(), | 24 env, base::android::ConvertUTF8ToJavaString(env, file_path)); |
26 base::android::ConvertUTF8ToJavaString(env, file_path)); | |
27 std::vector<jlong> results; | 25 std::vector<jlong> results; |
28 base::android::JavaLongArrayToLongVector(env, jarr.obj(), &results); | 26 base::android::JavaLongArrayToLongVector(env, jarr.obj(), &results); |
29 CHECK_EQ(3U, results.size()); | 27 CHECK_EQ(3U, results.size()); |
30 int fd = static_cast<int>(results[0]); | 28 int fd = static_cast<int>(results[0]); |
31 region->offset = results[1]; | 29 region->offset = results[1]; |
32 region->size = results[2]; | 30 region->size = results[2]; |
33 return fd; | 31 return fd; |
34 } | 32 } |
35 | 33 |
36 bool RegisterApkAssetWithFileDescriptorStore(const std::string& key, | 34 bool RegisterApkAssetWithFileDescriptorStore(const std::string& key, |
37 const base::FilePath& file_path) { | 35 const base::FilePath& file_path) { |
38 base::MemoryMappedFile::Region region = | 36 base::MemoryMappedFile::Region region = |
39 base::MemoryMappedFile::Region::kWholeFile; | 37 base::MemoryMappedFile::Region::kWholeFile; |
40 int asset_fd = OpenApkAsset(file_path.value(), ®ion); | 38 int asset_fd = OpenApkAsset(file_path.value(), ®ion); |
41 if (asset_fd == -1) | 39 if (asset_fd == -1) |
42 return false; | 40 return false; |
43 base::FileDescriptorStore::GetInstance().Set(key, base::ScopedFD(asset_fd), | 41 base::FileDescriptorStore::GetInstance().Set(key, base::ScopedFD(asset_fd), |
44 region); | 42 region); |
45 return true; | 43 return true; |
46 } | 44 } |
47 | 45 |
48 } // namespace android | 46 } // namespace android |
49 } // namespace base | 47 } // namespace base |
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