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<== Date ==> <== Thread ==>

Subject: Re: time drift in camonitor timestamps
From: Eric Norum <[email protected]>
To: Jack Smith <[email protected]>
Cc: EPICS Tech-Talk <[email protected]>
Date: Wed, 9 Jan 2013 11:03:34 -0800
Sorry.
Previous message had wrong periodicTask code.  Here's what I meant to send.

Jack, can you try this and see if it fixes the problem that you were seeing/


static void periodicTask(void *arg)
{
    periodic_scan_list *ppsl = (periodic_scan_list *)arg;

    epicsTimeStamp nextScan, now;
    double delay;

    taskwdInsert(0, NULL, NULL);
    epicsEventSignal(startStopEvent);

    epicsTimeGetCurrent(&nextScan);
    while (ppsl->scanCtl != ctlExit) {
        if (ppsl->scanCtl == ctlRun) scanList(&ppsl->scan_list);
        epicsTimeAddSeconds(&nextScan, ppsl->period);
        epicsTimeGetCurrent(&now);
        delay = epicsTimeDiffInSeconds(&nextScan, &now);
        if (delay <= 0.0) {
            ppsl->overrunCount++;
            delay = 0.02;
            epicsTimeGetCurrent(&nextScan);
        }
        epicsEventWaitWithTimeout(ppsl->loopEvent, delay);
    }

    taskwdRemove(0);
    epicsEventSignal(startStopEvent);
}

-- 
Eric Norum
[email protected]






Replies:
Re: time drift in camonitor timestamps Andrew Johnson
References:
time drift in camonitor timestamps ibadillo
RE: time drift in camonitor timestamps Mark Rivers
Re: time drift in camonitor timestamps Michael Davidsaver
Re: time drift in camonitor timestamps inari badillo
Re: time drift in camonitor timestamps Ralph Lange
Re: time drift in camonitor timestamps Eric Norum
Re: time drift in camonitor timestamps Jack Smith

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