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Mac Forum / Programming / CodeWarrior / January 2004Invalid time after waking up
Hello everybody, I'm creating a daemon application using the Carbon framework which is monitoring application usage. This application writes basically a log file with the app name and launch time. It's working fine except one detail: when the Mac is inactive some minutes, it goes to sleep. When then user activates it again (the Mac wakes up), and I get the system time (with the GetDateTime function), this time is invalid, it is not updated. Forcing a delay of 10 seconds (Delay function) I am able to get the correct date. Is this delay enough? Is there another solution?. Thanks in advance. Robert > It's working fine except one detail: when the Mac is inactive some > minutes, it goes to sleep. When then user activates it again (the Mac > wakes up), and I get the system time (with the GetDateTime function), > this time is invalid, it is not updated. Forcing a delay of 10 seconds > (Delay function) I am able to get the correct date. Is this delay > enough? Is there another solution?. Sounds like a bug... perhaps try a different API to get the time? > Hello everybody, > [quoted text clipped - 8 lines] > (Delay function) I am able to get the correct date. Is this delay > enough? Is there another solution?. This is a system-wide phenomenon. Turn on your menu bar clock if you haven't, and have a look at it next time you wake your machine from sleep. It will display the incorrect time for about ten seconds, just as you've observed in your program. Waiting is the only workaround that I know of. However, ten seconds is pretty arbitrary. If I were you, I would check the time every one second or so and wait for it to make a large jump; at that point you know that it's updated. That's a good idea, thank you! > > Hello everybody, > > [quoted text clipped - 18 lines] > or so and wait for it to make a large jump; at that point you know that > it's updated. |
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