newlib-cygwin/newlib/libc/sys/go32/getrusag.c

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2000-02-18 03:39:52 +08:00
/* This is file GETRUSAG.C */
/*
** Copyright (C) 1991 DJ Delorie
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**
** This file is distributed under the terms listed in the document
** "copying.dj".
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** A copy of "copying.dj" should accompany this file; if not, a copy
** should be available from where this file was obtained. This file
** may not be distributed without a verbatim copy of "copying.dj".
**
** This file is distributed WITHOUT ANY WARRANTY; without even the implied
** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <sys/time.h>
#include <sys/resource.h>
static struct timeval old_time = {0,0};
int getrusage(int who, struct rusage *rusage)
{
struct timeval now;
bzero(rusage, sizeof(struct rusage));
if (old_time.tv_sec == 0)
gettimeofday(&old_time, 0);
gettimeofday(&now, 0);
rusage->ru_utime.tv_usec = now.tv_usec - old_time.tv_usec;
rusage->ru_utime.tv_sec = now.tv_sec - old_time.tv_sec;
if (rusage->ru_utime.tv_usec < 0)
{
rusage->ru_utime.tv_usec += 1000000;
rusage->ru_utime.tv_sec -= 1;
}
return 0;
}