95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
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/*
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* Copyright (C) 2022 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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#pragma once
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#include <memory>
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#include <aidl/android/hardware/media/bufferpool2/IAccessor.h>
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#include <aidl/android/hardware/media/bufferpool2/IObserver.h>
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#include <bufferpool2/BufferPoolTypes.h>
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namespace aidl::android::hardware::media::bufferpool2::implementation {
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using aidl::android::hardware::media::bufferpool2::IAccessor;
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using aidl::android::hardware::media::bufferpool2::IObserver;
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struct Accessor;
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/**
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* A buffer pool client for a buffer pool. For a specific buffer pool, at most
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* one buffer pool client exists per process. This class will not be exposed
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* outside. A buffer pool client will be used via ClientManager.
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*/
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class BufferPoolClient {
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public:
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/**
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* Creates a buffer pool client from a local buffer pool
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* (via ClientManager#create).
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*/
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explicit BufferPoolClient(const std::shared_ptr<Accessor> &accessor,
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const std::shared_ptr<IObserver> &observer);
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/**
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* Creates a buffer pool client from a remote buffer pool
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* (via ClientManager#registerSender).
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* Note: A buffer pool client created with remote buffer pool cannot
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* allocate a buffer.
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*/
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explicit BufferPoolClient(const std::shared_ptr<IAccessor> &accessor,
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const std::shared_ptr<IObserver> &observer);
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/** Destructs a buffer pool client. */
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~BufferPoolClient();
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private:
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bool isValid();
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bool isLocal();
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bool isActive(int64_t *lastTransactionMs, bool clearCache);
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ConnectionId getConnectionId();
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BufferPoolStatus getAccessor(std::shared_ptr<IAccessor> *accessor);
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void receiveInvalidation(uint32_t msgId);
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BufferPoolStatus flush();
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BufferPoolStatus allocate(const std::vector<uint8_t> ¶ms,
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native_handle_t **handle,
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std::shared_ptr<BufferPoolData> *buffer);
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BufferPoolStatus receive(TransactionId transactionId,
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BufferId bufferId,
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int64_t timestampMs,
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native_handle_t **handle,
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std::shared_ptr<BufferPoolData> *buffer);
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BufferPoolStatus postSend(ConnectionId receiver,
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const std::shared_ptr<BufferPoolData> &buffer,
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TransactionId *transactionId,
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int64_t *timestampMs);
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class Impl;
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std::shared_ptr<Impl> mImpl;
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friend struct ClientManager;
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friend struct Observer;
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};
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} // namespace aidl::android::hardware::bufferpool2::implementation
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