Files
android/libwvdrmengine/level3/include/level3_file_system_android.h
Srujan Gaddam 896ce2b5aa Refactor file_store to use smart pointers
Bug: b/119276649
Merge from: http://go/wvgerrit/66367
Test: Android, CE CDM, Linux unit tests

The FileSystem interface as it exists expects an Open for a file and
then a Close when finished. However, the Close doesn't delete the file
itself and depending on the platform, the underlying impl_ as well,
leading to a memory leak. To fix this leak as well as harden against
future memory issues, this change refactors the interface to shift away
from raw pointers and towards smart pointers.

Change-Id: I7a7132ea95cd3775796a540f510b698f4f27dd24
2018-11-30 16:25:58 -08:00

40 lines
1.1 KiB
C++

// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine Master
// License Agreement.
/*********************************************************************
* level3_file_system_android.h
*
* File system for Android for OEMCrypto Level3 File Operations.
*********************************************************************/
#ifndef LEVEL3_FILE_SYSTEM_ANDROID_H_
#define LEVEL3_FILE_SYSTEM_ANDROID_H_
#include "level3_file_system.h"
#include <memory>
#include "file_store.h"
namespace wvoec3 {
class OEMCrypto_Level3AndroidFileSystem : public OEMCrypto_Level3FileSystem {
public:
OEMCrypto_Level3AndroidFileSystem();
~OEMCrypto_Level3AndroidFileSystem();
ssize_t Read(const char *filename, void *buffer, size_t size);
ssize_t Write(const char *filename, const void *buffer, size_t size);
bool Exists(const char *filename);
ssize_t FileSize(const char *filename);
bool Remove(const char *filename);
private:
std::string base_path_;
std::unique_ptr<wvcdm::FileSystem> file_system_;
};
} // namespace wvoec3
#endif