VOID VOS_Delay(ULONG ulDelayTimeMs)
{
LONG was_error;
struct timeval tv;
ULONG then, now, elapsed;
then = VOS_GetTicks();
do
{
errno = 0;
/* Calculate the time interval left (in case of interrupt) */
now = VOS_GetTicks();
elapsed = (now-then);
then = now;
if ( elapsed >= ulDelayTimeMs )
{
break;
}
ulDelayTimeMs -= elapsed;
tv.tv_sec = (long)(ulDelayTimeMs/1000);
tv.tv_usec = (long)((ulDelayTimeMs%1000)*1000);
was_error = select(0, VOS_NULL, VOS_NULL, VOS_NULL, &tv);
} while ( was_error && (errno == EINTR) );
}
/*******************************************************************************
Function: CNVSTimer::init()
Description: 初始化函数
Calls:
Called By:
Input: ulTimerScale: 定时器精度
Output: 无
Return:
VOS_SUCCESS: init success
VOS_FAIL: init fail
*******************************************************************************/
long CNVSTimer::init(ULONG ulTimerScale)
{
//初始化时需设置为非退出状态，否则重复启停会失败
m_bExit = VOS_FALSE;
if (ulTimerScale < MinTimerScale)
{
m_ulTimerScale = MinTimerScale;
}
else
{
m_ulTimerScale = ulTimerScale;
}
m_pMutexListOfTrigger = VOS_CreateMutex();
if(NULL == m_pMutexListOfTrigger)
{
IVS_RUN_LOG_ERR( "NVSTimer init: create m_pMutexListOfTrigger fail.");
return VOS_FAIL;
}
m_ullRrsAbsTimeScales = VOS_GetTicks()/m_ulTimerScale;
(void)VOS_NEW( m_plistTrigger );
if( NULL == m_plistTrigger )
{
IVS_RUN_LOG_ERR("NVSTimer init: m_plistTrigger is NULL.");
return VOS_FAIL;
}
return VOS_SUCCESS;
};
ULONG VOS_SemWaitTimeout(VOS_Sem *pstVosSem, ULONG ulTimeout)
{
ULONG ulResult = VOS_OK ;
if ( VOS_NULL == pstVosSem )
{
return VOS_ERR_PARAM ;
}
#if VOS_APP_OS == VOS_OS_LINUX
if ( VOS_MUTEX_MAXWAIT == ulTimeout )
{
return VOS_SemWait( pstVosSem );
}
ulTimeout += VOS_GetTicks();
do
{
ulResult = VOS_SemTryWait( pstVosSem );
if ( VOS_OK == ulResult )
{
break;
}
ulResult = VOS_ERR_SEMA_TIMEOUT ;
VOS_Delay(1);
} while ( VOS_GetTicks() < ulTimeout );
#elif VOS_APP_OS == VOS_OS_WIN32
ulResult = WaitForSingleObject(pstVosSem->sem,ulTimeout);
switch(ulResult)
{
case WAIT_OBJECT_0:
return VOS_OK;
case WAIT_TIMEOUT:
return VOS_ERR_SEMA_TIMEOUT;
default:
break;
}
#endif
return ulResult ;
}/*lint !e818*/ //无此问题
/*******************************************************************************
Function: CNVSTimer::mainLoop()
Description: 线程执行的定时检测主循环
Calls:
Called By:
Input: 无
Output: 无
Return: 无
*******************************************************************************/
void CNVSTimer::mainLoop()
{
ULONGLONG ullCurrentScales = 0;
while(VOS_FALSE == m_bExit)
{
#ifdef WIN32
Sleep(m_ulTimerScale);
#else
struct timeval tv;
tv.tv_sec = (long)(m_ulTimerScale/TIMER_SECOND_IN_MS);
tv.tv_usec = (m_ulTimerScale%TIMER_SECOND_IN_MS)*TIMER_MS_IN_US;
(void)select(0, VOS_NULL, VOS_NULL, VOS_NULL, &tv);
#endif
//加锁
CTimerItem *pTimerItem = NULL;
ITrigger *pTrigger = NULL;
++m_ullRrsAbsTimeScales ;//内部时间基准增加一个刻度
ullCurrentScales = m_ullRrsAbsTimeScales;
if(VOS_OK != VOS_MutexLock(m_pMutexListOfTrigger))
{
break;
};
ListOfTriggerIte itListOfTrigger = m_plistTrigger->begin();
ListOfTriggerIte itCurrentTrigger = m_plistTrigger->begin();
while(itListOfTrigger != m_plistTrigger->end())
{
pTimerItem = (*itListOfTrigger).second;//lint !e64
if(NULL == pTimerItem)
{
IVS_RUN_LOG_ERR("pTimerItem is NULL.");
itCurrentTrigger = itListOfTrigger;
++itListOfTrigger;
(void)(m_plistTrigger->erase(itCurrentTrigger));
continue;
}
pTrigger = (ITrigger *)pTimerItem->m_pTrigger;
//如果定时器已注销，删除定时器，继续查找下一个
if((NULL == pTrigger) || (VOS_TRUE == pTimerItem->m_bRemoved))
{
IVS_RUN_LOG_ERR("Timer(0x%x) removed.", pTimerItem);
itCurrentTrigger = itListOfTrigger;
++itListOfTrigger;
(void)(m_plistTrigger->erase(itCurrentTrigger));
VOS_DELETE(pTimerItem);
continue;
};
//BEGIN V100R001C05 ADD 2010-02-03 ligengqiang l00124479 for 合入朱玉军解决的黄石解码器下线问题 NP-231
ULONG ulTimeTickInterval = VOS_GetTicks() - pTimerItem->m_ulBaseTimeTicks;
if (ulTimeTickInterval < pTimerItem->m_ulInitialScales * m_ulTimerScale)
{
++itListOfTrigger;
continue;
}
pTimerItem->m_ulBaseTimeTicks = VOS_GetTicks();
//END V100R001C05 ADD 2010-02-03 ligengqiang l00124479 for 合入朱玉军解决的黄石解码器下线问题 NP-231
itCurrentTrigger = itListOfTrigger;
++itListOfTrigger;
(void)(m_plistTrigger->erase(itCurrentTrigger));
//触发trigger的onTrigger操作
pTrigger->onTrigger(pTimerItem->m_pArg,
ullCurrentScales, pTimerItem->m_enStyle);
//如果只触发一次，删除定时器
if(enOneShot == pTimerItem->m_enStyle)
{
IVS_RUN_LOG_ERR("Timer(0x%x) remove trigger once timer.",pTimerItem);
//防止pTrigger->onTrigger后删除定时器
pTrigger->m_pTimerItem = NULL;
VOS_DELETE(pTimerItem);
continue;
}
//对于重复触发定时器，需要修改下次超时事件，重新加入multimap
pTimerItem->m_ullCurScales = ullCurrentScales
+ pTimerItem->m_ulInitialScales;
(void)(m_plistTrigger->insert(ListOfTriggerPair(pTimerItem->m_ullCurScales,
pTimerItem)));
};
(void)VOS_MutexUnlock(m_pMutexListOfTrigger);
}
return;
}
/*******************************************************************************
Function: CNVSTimer::registerTimer()
Description: 注册定时器
Calls:
Called By:
Input: pTrigger: 超时处理对象实例, void *pArg: 超时处理参数,
nScales: 超时事件(以init时指定的scale为单位)
enStyle: 检测类型 enOneShot: 触发一次, enRepeated: 循环触发
Output: 无
Return:
VOS_SUCCESS: init success
VOS_FAIL: init fail
*******************************************************************************/
long CNVSTimer::registerTimer(ITrigger *pTrigger, void *pArg, ULONG nScales,
TriggerStyle enStyle)
{
if (NULL == pTrigger )
{
IVS_RUN_LOG_ERR("NVSTimer RegisterTimer: pTrigger is NULL");
return VOS_FAIL;
}
if (0 == nScales )
{
IVS_RUN_LOG_ERR("NVSTimer RegisterTimer: nScales is zero");
return VOS_FAIL;
}
if( VOS_TRUE == m_bExit)
{
IVS_RUN_LOG_ERR("NVSTimer RegisterTimer: bExit is VOS_TRUE, thread exit");
return VOS_FAIL;
}
CTimerItem *pTimerItem = NULL;
(void)VOS_NEW(pTimerItem);
if (NULL == pTimerItem )
{
IVS_RUN_LOG_ERR("NVSTimer RegisterTimer: new pTimerItem fail");
return VOS_FAIL;
}
pTrigger->m_pTimerItem = pTimerItem;
pTimerItem->m_pTrigger = pTrigger;
pTimerItem->m_pArg = pArg;
pTimerItem->m_ulInitialScales = nScales;
pTimerItem->m_ullCurScales = m_ullRrsAbsTimeScales + nScales;
pTimerItem->m_enStyle = enStyle;
//BEGIN V100R001C05 ADD 2010-02-03 ligengqiang l00124479 for 合入朱玉军解决的黄石解码器下线问题 NP-231
pTimerItem->m_ulBaseTimeTicks = VOS_GetTicks();
//END V100R001C05 ADD 2010-02-03 ligengqiang l00124479 for 合入朱玉军解决的黄石解码器下线问题 NP-231
//加锁(如果和mainloop不是同一线程不需要加锁)
VOS_BOOLEAN bNeedLock = VOS_FALSE;
VOS_BOOLEAN bLocked = VOS_FALSE;
if (NULL == m_pVosThread)
{
bNeedLock = VOS_TRUE;
}
else
{
if(VOS_pthread_self() != m_pVosThread->pthead)
{
bNeedLock = VOS_TRUE;
}
}
if(VOS_TRUE == bNeedLock)
{
if (VOS_OK != VOS_MutexLock(m_pMutexListOfTrigger))
{
IVS_RUN_LOG_ERR("NVSTimer RegisterTimer: get lock failed");
}
else
{
bLocked = VOS_TRUE;
}
}
(void)(m_plistTrigger->insert(ListOfTriggerPair(pTimerItem->m_ullCurScales, pTimerItem)));
//解锁
if(VOS_TRUE == bLocked)
{
if (VOS_OK != VOS_MutexUnlock(m_pMutexListOfTrigger))
{
IVS_RUN_LOG_ERR("NVSTimer RegisterTimer: release lock failed",
_TIMER_FL_);
}
}
return VOS_SUCCESS;
};