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/*
* Copyright (C) 2018 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 specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V1_0_CONNECTION_H
#define ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V1_0_CONNECTION_H
#include <android/hardware/media/bufferpool/1.0/IConnection.h>
#include <bufferpool/BufferPoolTypes.h>
#include <hidl/MQDescriptor.h>
#include <hidl/Status.h>
#include "Accessor.h"
namespace android {
namespace hardware {
namespace media {
namespace bufferpool {
namespace V1_0 {
namespace implementation {
using ::android::hardware::hidl_array;
using ::android::hardware::hidl_memory;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::media::bufferpool::V1_0::implementation::Accessor;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::sp;
struct Connection : public IConnection {
// Methods from ::android::hardware::media::bufferpool::V1_0::IConnection follow.
Return<void> fetch(uint64_t transactionId, uint32_t bufferId, fetch_cb _hidl_cb) override;
/**
* Allocates a buffer using the specified parameters. Recycles a buffer if
* it is possible. The returned buffer can be transferred to other remote
* clients(Connection).
*
* @param params allocation parameters.
* @param bufferId Id of the allocated buffer.
* @param handle native handle of the allocated buffer.
*
* @return OK if a buffer is successfully allocated.
* NO_MEMORY when there is no memory.
* CRITICAL_ERROR otherwise.
*/
ResultStatus allocate(const std::vector<uint8_t> &params,
BufferId *bufferId, const native_handle_t **handle);
/**
* Processes pending buffer status messages and performs periodic cache cleaning
* from bufferpool.
*
* @param clearCache if clearCache is true, bufferpool frees all buffers
* waiting to be recycled.
*/
void cleanUp(bool clearCache);
/** Destructs a connection. */
~Connection();
/** Creates a connection. */
Connection();
/**
* Initializes with the specified buffer pool and the connection id.
* The connection id should be unique in the whole system.
*
* @param accessor the specified buffer pool.
* @param connectionId Id.
*/
void initialize(const sp<Accessor> &accessor, ConnectionId connectionId);
enum : uint32_t {
SYNC_BUFFERID = UINT32_MAX,
};
private:
bool mInitialized;
sp<Accessor> mAccessor;
ConnectionId mConnectionId;
};
} // namespace implementation
} // namespace V1_0
} // namespace bufferpool
} // namespace media
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V1_0_CONNECTION_H