How can we get current time accurate to milli sec in C++/unix?
Is there some API to perform this function?

Rich Teer <rich.teer@rite-group.com> writes:

> On Tue, 27 Sep 2005, rishi.shah@patni.com wrote:
>
>> How can we get current time accurate to milli sec in C++/unix?
>> Is there some API to perform this function?
>
> Dujno about milliseconds, but gettimeofday will give it to you
> in microseconds, provided your HW and OS support that granularity.

ftime(3) will give you milliseconds.  I can't say I've used it,
though; I always use gettimeofday(2).


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On Tue, 27 Sep 2005, rishi.shah@patni.com wrote:

> How can we get current time accurate to milli sec in C++/unix?
> Is there some API to perform this function?

Dujno about milliseconds, but gettimeofday will give it to you
in microseconds, provided your HW and OS support that granularity.

HTH,

-- 
Rich Teer, SCNA, SCSA, OpenSolaris CAB member

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Rite Online Inc.

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rishi.shah@patni.com wrote:
> How can we get current time accurate to milli sec in C++/unix?
> Is there some API to perform this function?

gettimeofday()
clock_gettime()

The second one is interesting because you can specify CLOCK_REALTIME (ie 
wallclock) or CLOCK_MONOTONIC (doesn't jump with NTP corrections).

Chris