43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
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#ifndef TIMER_MACRO_DEFINITIONS
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#define TIMER_MACRO_DEFINITIONS
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/******************************************************************************/
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// Course: BSy
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// File: mtimer.h
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// Purpose: timer functions gettimeofday()
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// Author: M. Thaler, ZHAW, 1/2016
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// Version: v.fs20
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/******************************************************************************/
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// gettimeofday()
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// function: elapsed time: between start and stop
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// data type: gtimer_t
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// functions: startGTimer(gtimer_t tdata) -> start timer
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// stopGTimer(gtimer_t tdata) -> stop timer
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// double getWallGTime(gtimer_t tdata) -> get time in s
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// printGTime(X) -> print time in s
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//
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// -> see also "man gettimeofday"
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/******************************************************************************/
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#include <unistd.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/times.h>
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/******************************************************************************/
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typedef struct gtimer_t { struct timeval sT; \
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struct timeval eT; } gtimer_t;
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#define startGTimer(X) gettimeofday(&X.sT, NULL)
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#define stopGTimer(X) gettimeofday(&X.eT, NULL)
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#define getGTime(X) ((double)(X.eT.tv_sec) - (double)(X.sT.tv_sec)) +\
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((double)X.eT.tv_usec - (double)X.sT.tv_usec)/1e6
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#define printGTime(X) printf("Run time %3.2lfs\n", getGTime(X))
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/******************************************************************************/
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#endif
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