62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*-------------------------------------------------------------------------
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*
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* win32getrusage.c
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* get information about resource utilisation
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*
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* Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* IDENTIFICATION
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* src/port/win32getrusage.c
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*
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*-------------------------------------------------------------------------
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*/
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#include "c.h"
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#include <sys/resource.h>
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int
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getrusage(int who, struct rusage *rusage)
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{
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FILETIME starttime;
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FILETIME exittime;
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FILETIME kerneltime;
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FILETIME usertime;
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ULARGE_INTEGER li;
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if (who != RUSAGE_SELF)
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{
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/* Only RUSAGE_SELF is supported in this implementation for now */
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errno = EINVAL;
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return -1;
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}
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if (rusage == (struct rusage *) NULL)
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{
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errno = EFAULT;
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return -1;
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}
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memset(rusage, 0, sizeof(struct rusage));
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if (GetProcessTimes(GetCurrentProcess(),
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&starttime, &exittime, &kerneltime, &usertime) == 0)
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{
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_dosmaperr(GetLastError());
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return -1;
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}
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/* Convert FILETIMEs (0.1 us) to struct timeval */
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memcpy(&li, &kerneltime, sizeof(FILETIME));
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li.QuadPart /= 10L; /* Convert to microseconds */
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rusage->ru_stime.tv_sec = li.QuadPart / 1000000L;
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rusage->ru_stime.tv_usec = li.QuadPart % 1000000L;
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memcpy(&li, &usertime, sizeof(FILETIME));
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li.QuadPart /= 10L; /* Convert to microseconds */
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rusage->ru_utime.tv_sec = li.QuadPart / 1000000L;
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rusage->ru_utime.tv_usec = li.QuadPart % 1000000L;
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return 0;
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}
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