183 lines
7.2 KiB
C++
183 lines
7.2 KiB
C++
/*
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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 <aidl/android/hardware/media/bufferpool2/IAccessor.h>
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#include <aidl/android/hardware/media/bufferpool2/BnClientManager.h>
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#include <memory>
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#include "BufferPoolTypes.h"
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namespace aidl::android::hardware::media::bufferpool2::implementation {
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using aidl::android::hardware::media::bufferpool2::BnClientManager;
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using aidl::android::hardware::media::bufferpool2::IClientManager;
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using aidl::android::hardware::media::bufferpool2::IAccessor;
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struct ClientManager : public BnClientManager {
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// Methods from ::aidl::android::hardware::media::bufferpool2::IClientManager follow.
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::ndk::ScopedAStatus registerSender(
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const std::shared_ptr<IAccessor>& in_bufferPool,
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::aidl::android::hardware::media::bufferpool2::IClientManager::Registration* _aidl_return)
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override;
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/** Gets an instance. */
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static std::shared_ptr<ClientManager> getInstance();
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/**
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* Creates a local connection with a newly created buffer pool.
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*
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* @param allocator for new buffer allocation.
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* @param pConnectionId Id of the created connection. This is
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* system-wide unique.
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*
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* @return OK when a buffer pool and a local connection is successfully
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* created.
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* ResultStatus::NO_MEMORY when there is no memory.
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* CRITICAL_ERROR otherwise.
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*/
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BufferPoolStatus create(const std::shared_ptr<BufferPoolAllocator> &allocator,
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ConnectionId *pConnectionId);
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/**
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* Register a created connection as sender for remote process.
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*
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* @param receiver The remote receiving process.
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* @param senderId A local connection which will send buffers to.
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* @param receiverId Id of the created receiving connection on the receiver
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* process.
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* @param isNew @true when the receiving connection is newly created.
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*
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* @return OK when the receiving connection is successfully created on the
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* receiver process.
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* NOT_FOUND when the sender connection was not found.
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* CRITICAL_ERROR otherwise.
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*/
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BufferPoolStatus registerSender(const std::shared_ptr<IClientManager> &receiver,
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ConnectionId senderId,
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ConnectionId *receiverId,
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bool *isNew);
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/**
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* Closes the specified connection.
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*
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* @param connectionId The id of the connection.
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*
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* @return OK when the connection is closed.
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* NOT_FOUND when the specified connection was not found.
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* CRITICAL_ERROR otherwise.
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*/
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BufferPoolStatus close(ConnectionId connectionId);
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/**
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* Evicts cached allocations. If it's local connection, release the
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* previous allocations and do not recycle current active allocations.
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*
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* @param connectionId The id of the connection.
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*
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* @return OK when the connection is resetted.
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* NOT_FOUND when the specified connection was not found.
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* CRITICAL_ERROR otherwise.
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*/
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BufferPoolStatus flush(ConnectionId connectionId);
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/**
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* Allocates a buffer from the specified connection. The output parameter
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* handle is cloned from the internal handle. So it is safe to use directly,
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* and it should be deleted and destroyed after use.
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*
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* @param connectionId The id of the connection.
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* @param params The allocation parameters.
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* @param handle The native handle to the allocated buffer. handle
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* should be cloned before use.
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* @param buffer The allocated buffer.
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*
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* @return OK when a buffer was allocated successfully.
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* NOT_FOUND when the specified connection was not found.
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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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BufferPoolStatus allocate(ConnectionId connectionId,
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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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/**
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* Receives a buffer for the transaction. The output parameter handle is
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* cloned from the internal handle. So it is safe to use directly, and it
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* should be deleted and destoyed after use.
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*
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* @param connectionId The id of the receiving connection.
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* @param transactionId The id for the transaction.
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* @param bufferId The id for the buffer.
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* @param timestampMs The timestamp of the buffer is being sent.
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* @param handle The native handle to the allocated buffer. handle
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* should be cloned before use.
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* @param buffer The received buffer.
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*
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* @return OK when a buffer was received successfully.
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* NOT_FOUND when the specified connection was not found.
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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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BufferPoolStatus receive(ConnectionId connectionId,
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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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/**
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* Posts a buffer transfer transaction to the buffer pool. Sends a buffer
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* to other remote clients(connection) after this call has been succeeded.
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*
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* @param receiverId The id of the receiving connection.
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* @param buffer to transfer
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* @param transactionId Id of the transfer transaction.
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* @param timestampMs The timestamp of the buffer transaction is being
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* posted.
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*
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* @return OK when a buffer transaction was posted successfully.
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* NOT_FOUND when the sending connection was not found.
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* CRITICAL_ERROR otherwise.
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*/
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BufferPoolStatus postSend(ConnectionId receiverId,
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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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/**
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* Time out inactive lingering connections and close.
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*/
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void cleanUp();
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/** Destructs the manager of buffer pool clients. */
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~ClientManager();
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private:
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static std::shared_ptr<ClientManager> sInstance;
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static std::mutex sInstanceLock;
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class Impl;
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const std::unique_ptr<Impl> mImpl;
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friend class ::ndk::SharedRefBase;
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ClientManager();
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};
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} // namespace aidl::android::hardware::media::bufferpool2::implementation
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