mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
|
// Copyright 2015 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 <jni.h>
|
||
|
|
|
||
|
|
#include "base/android/apk_assets.h"
|
||
|
|
|
||
|
|
#include "base/android/jni_array.h"
|
||
|
|
#include "base/android/jni_string.h"
|
||
|
|
#include "base/android/scoped_java_ref.h"
|
||
|
|
#include "base/file_descriptor_store.h"
|
||
|
|
#include "jni/ApkAssets_jni.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
namespace android {
|
||
|
|
|
||
|
|
int OpenApkAsset(const std::string& file_path,
|
||
|
|
base::MemoryMappedFile::Region* region) {
|
||
|
|
// The AssetManager API of the NDK does not expose a method for accessing raw
|
||
|
|
// resources :(
|
||
|
|
JNIEnv* env = base::android::AttachCurrentThread();
|
||
|
|
ScopedJavaLocalRef<jlongArray> jarr = Java_ApkAssets_open(
|
||
|
|
env, base::android::ConvertUTF8ToJavaString(env, file_path));
|
||
|
|
std::vector<jlong> results;
|
||
|
|
base::android::JavaLongArrayToLongVector(env, jarr.obj(), &results);
|
||
|
|
CHECK_EQ(3U, results.size());
|
||
|
|
int fd = static_cast<int>(results[0]);
|
||
|
|
region->offset = results[1];
|
||
|
|
region->size = results[2];
|
||
|
|
return fd;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool RegisterApkAssetWithFileDescriptorStore(const std::string& key,
|
||
|
|
const base::FilePath& file_path) {
|
||
|
|
base::MemoryMappedFile::Region region =
|
||
|
|
base::MemoryMappedFile::Region::kWholeFile;
|
||
|
|
int asset_fd = OpenApkAsset(file_path.value(), ®ion);
|
||
|
|
if (asset_fd == -1)
|
||
|
|
return false;
|
||
|
|
base::FileDescriptorStore::GetInstance().Set(key, base::ScopedFD(asset_fd),
|
||
|
|
region);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace android
|
||
|
|
} // namespace base
|