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48 lines
2.0 KiB
48 lines
2.0 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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package android.hardware.media.bufferpool@1.0;
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import IAccessor;
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/**
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* IClientManager manages IConnection(s) inside a process. A locally
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* created IConnection represents a communication node(receiver) with the
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* specified buffer pool(IAccessor).
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* IConnection(s) are not exposed to other processes(IClientManager).
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* IClientManager instance must be unique within a process.
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*/
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interface IClientManager {
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/**
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* Sets up a buffer receiving communication node for the specified
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* buffer pool. A manager must create a IConnection to the buffer
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* pool if it does not already have a connection.
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*
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* @param bufferPool a buffer pool which is specified with the IAccessor.
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* The specified buffer pool is the owner of received buffers.
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* @return status The status of the call.
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* OK - A sender was set successfully.
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* NO_MEMORY - Memory allocation failure occurred.
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* ALREADY_EXISTS - A sender was registered already.
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* CRITICAL_ERROR - Other errors.
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* @return connectionId the Id of the communication node to the buffer pool.
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* This id is used in FMQ to notify IAccessor that a buffer has been
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* sent to that connection during transfers.
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*/
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registerSender(IAccessor bufferPool) generates
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(ResultStatus status, int64_t connectionId);
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};
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