98 lines
2.1 KiB
C++
98 lines
2.1 KiB
C++
/*
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* Copyright (C) Texas Instruments - http://www.ti.com/
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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 __MESSAGEQUEUE_H__
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#define __MESSAGEQUEUE_H__
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#include "DebugUtils.h"
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#include <stdint.h>
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#ifdef MSGQ_DEBUG
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# define MSGQ_LOGDA DBGUTILS_LOGDA
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# define MSGQ_LOGDB DBGUTILS_LOGDB
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#else
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# define MSGQ_LOGDA(str)
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# define MSGQ_LOGDB(str, ...)
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#endif
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#define MSGQ_LOGEA DBGUTILS_LOGEA
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#define MSGQ_LOGEB DBGUTILS_LOGEB
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namespace Ti {
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namespace Utils {
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///Message type
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struct Message
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{
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int command;
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void* arg1;
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void* arg2;
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void* arg3;
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void* arg4;
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int64_t id;
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};
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///Message queue implementation
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class MessageQueue
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{
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public:
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MessageQueue();
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~MessageQueue();
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///Get a message from the queue
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android::status_t get(Message*);
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///Get the input file descriptor of the message queue
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int getInFd();
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///Set the input file descriptor for the message queue
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void setInFd(int fd);
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///Queue a message
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android::status_t put(Message*);
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///Returns if the message queue is empty or not
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bool isEmpty();
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void clear();
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///Force whether the message queue has message or not
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void setMsg(bool hasMsg=false);
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///Wait for message in maximum three different queues with a timeout
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static int waitForMsg(MessageQueue *queue1, MessageQueue *queue2=0, MessageQueue *queue3=0, int timeout = 0);
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bool hasMsg()
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{
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return mHasMsg;
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}
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private:
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int fd_read;
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int fd_write;
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bool mHasMsg;
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};
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} // namespace Utils
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} // namespace Ti
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#endif
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