98 lines
2.4 KiB
C++
98 lines
2.4 KiB
C++
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/******************************************************************************
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Copyright (C), 2001-2016, Allwinner Tech. Co., Ltd.
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******************************************************************************
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File Name : CallbackDispatcher.cpp
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Version : Initial Draft
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Author : Allwinner BU3-PD2 Team
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Created : 2016/06/02
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Last Modified :
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Description : camera wrap MPP components.
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Function List :
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History :
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******************************************************************************/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "CallbackDispatcher"
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#include <utils/plat_log.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <unistd.h>
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#include <CallbackDispatcher.h>
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namespace EyeseeLinux {
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bool CallbackDispatcher::CallbackDispatcherThread::threadLoop()
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{
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return mpDispatcher->loop();
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}
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CallbackDispatcher::CallbackDispatcher()
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: mbDone(false)
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{
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mpDispatcherThread = new CallbackDispatcherThread(this);
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mpDispatcherThread->run("CallbackDispatcherThread");
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}
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CallbackDispatcher::~CallbackDispatcher()
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{
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{
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Mutex::Autolock autoLock(mLock);
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mbDone = true;
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mQueueChanged.signal();
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}
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// A join on self can happen if the last ref to CallbackDispatcher
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// is released within the CallbackDispatcherThread loop
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status_t status = mpDispatcherThread->join();
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if (status != WOULD_BLOCK) {
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// Other than join to self, the only other error return codes are
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// whatever readyToRun() returns, and we don't override that
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if(status != (status_t)NO_ERROR)
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{
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aloge("status[0x%x]!=NO_ERROR", status);
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}
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}
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delete mpDispatcherThread;
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}
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void CallbackDispatcher::post(const CallbackMessage &msg)
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{
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Mutex::Autolock autoLock(mLock);
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mQueue.push_back(msg);
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mQueueChanged.signal();
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}
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void CallbackDispatcher::dispatch(const CallbackMessage &msg)
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{
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handleMessage(msg);
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}
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bool CallbackDispatcher::loop()
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{
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for(;;)
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{
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CallbackMessage msg;
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{
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Mutex::Autolock autoLock(mLock);
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while (!mbDone && mQueue.empty())
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{
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mQueueChanged.wait(mLock);
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}
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if (mbDone)
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{
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break;
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}
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msg = mQueue.front();
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mQueue.pop_front();
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}
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dispatch(msg);
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}
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return false;
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}
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}; /* namespace EyeseeLinux */
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