74 lines
1.1 KiB
C++
74 lines
1.1 KiB
C++
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#include <config.h>
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#if defined(HAVE_CLOCK_GETTIME)
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#include <time.h>
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unsigned GetRunningMicroSecs()
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{
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struct timespec now;
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clock_gettime( CLOCK_MONOTONIC, &now );
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unsigned usecs = ((unsigned)now.tv_nsec)/1000 + ((unsigned)now.tv_sec) * 1000000;
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// unsigned msecs = (now.tv_nsec / (1000*1000)) + now.tv_sec * 1000;
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return usecs;
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}
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#elif defined(HAVE_GETTIMEOFDAY_FUNC)
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#include <sys/time.h>
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unsigned GetRunningMicroSecs()
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{
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timeval tv;
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gettimeofday( &tv, 0 );
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return (tv.tv_sec * 1000000) + tv.tv_usec;
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}
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#elif defined(_WIN32)
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#define WIN32_LEAN_AND_MEAN 1
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#include <windows.h>
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#include <assert.h>
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unsigned GetRunningMicroSecs()
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{
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FILETIME now;
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GetSystemTimeAsFileTime( &now );
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typedef unsigned long long UINT64;
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UINT64 t = (UINT64(now.dwHighDateTime) << 32) + now.dwLowDateTime;
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t /= 10;
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return unsigned( t );
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}
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#if 0
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// test program
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#include <stdio.h>
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int main( int argc, char** argv )
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{
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unsigned then = GetRunningMicroSecs();
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Sleep( 2000 ); // Windows Sleep( msecs )
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printf( "delta: %u\n", GetRunningMicroSecs() - then );
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return 0;
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}
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#endif
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#endif
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