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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specic language governing permissions and
* limitations under the License.
*/
#ifndef MEDIAPROVIDER_JNI_FUSEDAEMON_H_
#define MEDIAPROVIDER_JNI_FUSEDAEMON_H_
#include <memory>
#include <string>
#include <android-base/unique_fd.h>
#include "MediaProviderWrapper.h"
#include "jni.h"
struct fuse;
namespace mediaprovider {
namespace fuse {
class FuseDaemon final {
public:
FuseDaemon(JNIEnv* env, jobject mediaProvider);
~FuseDaemon() = default;
/**
* Start the FUSE daemon loop that will handle filesystem calls.
*/
void Start(android::base::unique_fd fd, const std::string& path,
const std::vector<std::string>& supported_transcoding_relative_paths);
/**
* Checks if the FUSE daemon is started.
*/
bool IsStarted() const;
/**
* Check if file should be opened with FUSE
*/
bool ShouldOpenWithFuse(int fd, bool for_read, const std::string& path);
/**
* Invalidate FUSE VFS dentry cache entry for path
*/
void InvalidateFuseDentryCache(const std::string& path);
/**
* Return path of the original media format file for the given file descriptor.
*/
const std::string GetOriginalMediaFormatFilePath(int fd) const;
/**
* Initialize device id for the FUSE daemon with the FUSE device id of the given path.
*/
void InitializeDeviceId(const std::string& path);
private:
FuseDaemon(const FuseDaemon&) = delete;
void operator=(const FuseDaemon&) = delete;
MediaProviderWrapper mp;
std::atomic_bool active;
struct ::fuse* fuse;
};
} // namespace fuse
} // namespace mediaprovider
#endif // MEDIAPROVIDER_JNI_FUSEDAEMON_H_