fractions of a second w/asctime ?

This is a discussion on fractions of a second w/asctime ? within the C Programming forums, part of the General Programming Boards category; Hello all, I need to do some maintenance on a HUGE existing program. The debug output log uses asctime to ...

  1. #1
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    fractions of a second w/asctime ?

    Hello all,
    I need to do some maintenance on a HUGE existing program. The debug output log uses asctime to the output log, but it only goes as small as seconds, nothing less. I need some sub-second metrics.

    This compiles and runs under Unix as a server side app, so I don't want to add any external lib or header references if possible. ie No ATL.

    I've done a lot of msdn searches but cannot find anything. Please help so I don't have to go live in my van down by the river.

    TIA!

  2. #2
    Registered User glUser3f's Avatar
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    what UNIX OS are you using?
    I've never don't programming under a UNIX OS, however, I know how to do it under Linux, you need to use a function called gettimeofday:
    Code:
    #include <sys/time.h>
    struct timeval tval;
    gettimeofday(&tval, (struct timezone*)0);
    google for gettimeofday

  3. #3
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    Just had to keep looking. pretty basic. I'm not a big fan of maintaining 100K lines of old code (and that's just this one module!). Hey, it's a job. Just append the millisecond value to the string and I'm done.

    Code:
    	
    	#include "afx.h"
    	SYSTEMTIME systime;
    	GetSystemTime(&systime);
    	int imills = systime.wMilliseconds;
    	printf("millisecond stamp: %i\n", imills);
    Time for lunch.

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