/* File cputime.c. Contain Unix function cpuTime returning the CPU
time in milliseconds (user+system) used by the current program.
Works at least on Sun/3 and Sun/4. */
#include <time.h>
#include <sys/time.h>
#include <sys/resource.h>
#ifndef TICK
#error TICK must be defined.
#endif
#if TICK != 1000
#error TICK must have value 1000
#endif
#undef CLK_TCK
#define CLK_TCK 1000
clock_t cpuTime(void)
{
struct rusage usage;
getrusage( RUSAGE_SELF, &usage);
return (clock_t) ( usage.ru_utime.tv_usec / 1000 +
usage.ru_utime.tv_sec * 1000 +
usage.ru_stime.tv_usec / 1000 +
usage.ru_stime.tv_sec * 1000 );
}
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