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hardware clock

peak_chen
peak_chen asked
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Last Modified: 2013-12-27
How can I get the hardwarr clock in my c++ program beneath Solaris 2.5.1/2.6? Is there any API? What is the difference between clock_settime(), gettimeofday() and time()? How precicious are them? I want to get to it because I would take it as the time base in my system.Thank you!
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Top Expert 2005

Commented:
Why would you want to get to the hardware clock?

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Commented:
Edited text of question.
Top Expert 2005

Commented:
I guess I didn't make my query very clear. Why the hardware clock as opposed to gettimeofday(). If the sytem is set up to time sync via NTP (Network Time Protocol), I believe that the system call is usually more accurate as the hardware clock isn't necessarily updated as often. And I'd have to check to be certain, but I think the hardware clock only has a resolution of 1 sec. The system clock does a bit better as it counts clock ticks.
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