tEplKernel PUBLIC EplTimeruModifyTimerMs(tEplTimerHdl* pTimerHdl_p,
unsigned long ulTimeMs_p,
tEplTimerArg Argument_p)
{
tEplKernel Ret;
Ret = EplTimeruDeleteTimer(pTimerHdl_p);
if (Ret != kEplSuccessful)
{
goto Exit;
}
Ret = EplTimeruSetTimerMs(pTimerHdl_p, ulTimeMs_p, Argument_p);
Exit:
return Ret;
}
tEplKernel EplTimeruModifyTimerMs(tEplTimerHdl *pTimerHdl_p,
unsigned long ulTime_p,
tEplTimerArg Argument_p)
{
tEplKernel Ret = kEplSuccessful;
tEplTimeruData *pData;
// check pointer to handle
if (pTimerHdl_p == NULL) {
Ret = kEplTimerInvalidHandle;
goto Exit;
}
// check handle itself, i.e. was the handle initialized before
if (*pTimerHdl_p == 0) {
Ret = EplTimeruSetTimerMs(pTimerHdl_p, ulTime_p, Argument_p);
goto Exit;
}
pData = (tEplTimeruData *) * pTimerHdl_p;
if ((tEplTimeruData *) pData->m_Timer.data != pData) {
Ret = kEplTimerInvalidHandle;
goto Exit;
}
mod_timer(&pData->m_Timer, (jiffies + ulTime_p * HZ / 1000));
// copy the TimerArg after the timer is restarted,
// so that a timer occured immediately before mod_timer
// won't use the new TimerArg and
// therefore the old timer cannot be distinguished from the new one.
// But if the new timer is too fast, it may get lost.
EPL_MEMCPY(&pData->TimerArgument, &Argument_p, sizeof(tEplTimerArg));
// check if timer is really running
if (timer_pending(&pData->m_Timer) == 0) { // timer is not running
// retry starting it
add_timer(&pData->m_Timer);
}
// set handle to pointer of tEplTimeruData
// *pTimerHdl_p = (tEplTimerHdl) pData;
Exit:
return Ret;
}
