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104 lines
3.3 KiB
104 lines
3.3 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V1_0_CONNECTION_H
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#define ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V1_0_CONNECTION_H
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#include <android/hardware/media/bufferpool/1.0/IConnection.h>
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#include <bufferpool/BufferPoolTypes.h>
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#include <hidl/MQDescriptor.h>
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#include <hidl/Status.h>
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#include "Accessor.h"
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namespace android {
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namespace hardware {
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namespace media {
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namespace bufferpool {
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namespace V1_0 {
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namespace implementation {
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using ::android::hardware::hidl_array;
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using ::android::hardware::hidl_memory;
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using ::android::hardware::hidl_string;
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using ::android::hardware::hidl_vec;
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using ::android::hardware::media::bufferpool::V1_0::implementation::Accessor;
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using ::android::hardware::Return;
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using ::android::hardware::Void;
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using ::android::sp;
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struct Connection : public IConnection {
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// Methods from ::android::hardware::media::bufferpool::V1_0::IConnection follow.
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Return<void> fetch(uint64_t transactionId, uint32_t bufferId, fetch_cb _hidl_cb) override;
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/**
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* Allocates a buffer using the specified parameters. Recycles a buffer if
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* it is possible. The returned buffer can be transferred to other remote
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* clients(Connection).
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*
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* @param params allocation parameters.
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* @param bufferId Id of the allocated buffer.
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* @param handle native handle of the allocated buffer.
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*
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* @return OK if a buffer is successfully allocated.
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* NO_MEMORY when there is no memory.
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* CRITICAL_ERROR otherwise.
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*/
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ResultStatus allocate(const std::vector<uint8_t> ¶ms,
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BufferId *bufferId, const native_handle_t **handle);
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/**
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* Processes pending buffer status messages and performs periodic cache cleaning
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* from bufferpool.
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*
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* @param clearCache if clearCache is true, bufferpool frees all buffers
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* waiting to be recycled.
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*/
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void cleanUp(bool clearCache);
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/** Destructs a connection. */
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~Connection();
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/** Creates a connection. */
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Connection();
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/**
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* Initializes with the specified buffer pool and the connection id.
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* The connection id should be unique in the whole system.
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*
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* @param accessor the specified buffer pool.
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* @param connectionId Id.
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*/
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void initialize(const sp<Accessor> &accessor, ConnectionId connectionId);
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enum : uint32_t {
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SYNC_BUFFERID = UINT32_MAX,
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};
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private:
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bool mInitialized;
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sp<Accessor> mAccessor;
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ConnectionId mConnectionId;
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};
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} // namespace implementation
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} // namespace V1_0
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} // namespace bufferpool
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} // namespace media
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V1_0_CONNECTION_H
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