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 3 // found in the LICENSE file. 4 5 #ifndef BASE_ANDROID_APK_ASSETS_H_ 6 #define BASE_ANDROID_APK_ASSETS_H_ 7 8 #include <string> 9 10 #include "base/android/jni_android.h" 11 #include "base/files/memory_mapped_file.h" 12 #include "base/posix/global_descriptors.h" 13 14 namespace base { 15 namespace android { 16 17 bool RegisterApkAssets(JNIEnv* env); 18 19 // Opens an asset (e.g. a .pak file) from the apk. 20 // Can be used from renderer process. 21 // Fails if the asset is not stored uncompressed within the .apk. 22 // Returns: The File Descriptor of the asset, or -1 upon failure. 23 // Input arguments: 24 // - |file_path|: Path to file within .apk. e.g.: assets/foo.pak 25 // Output arguments: 26 // - |region|: size & offset (in bytes) within the .apk of the asset. 27 BASE_EXPORT int OpenApkAsset( 28 const std::string& file_path, 29 base::MemoryMappedFile::Region* region); 30 31 // Registers an uncompressed asset from within the apk with GlobalDescriptors. 32 // Returns: true in case of success, false otherwise. 33 BASE_EXPORT bool RegisterApkAssetWithGlobalDescriptors( 34 base::GlobalDescriptors::Key key, 35 const std::string& file_path); 36 37 } // namespace android 38 } // namespace base 39 40 #endif // BASE_ANDROID_APK_ASSETS_H_ 41