getrusage.c

/*
 +----------------------------------------------------------------------+
 | Copyright (c) The PHP Group |
 +----------------------------------------------------------------------+
 | This source file is subject to version 3.01 of the PHP license, |
 | that is bundled with this package in the file LICENSE, and is |
 | available through the world-wide-web at the following url: |
 | https://www.php.net/license/3_01.txt |
 | If you did not receive a copy of the PHP license and are unable to |
 | obtain it through the world-wide-web, please send a note to |
 | license@php.net so we can mail you a copy immediately. |
 +----------------------------------------------------------------------+
 | Authors: Kalle Sommer Nielsen <kalle@php.net> |
 +----------------------------------------------------------------------+
 */

#include<php.h>
#include<psapi.h>
#include"getrusage.h"

/*
 * Parts of this file is based on code from the OpenVSwitch project, that
 * is released under the Apache 2.0 license and is copyright 2014 Nicira, Inc.
 * and have been modified to work with PHP.
 */

staticzend_always_inlinevoidusage_to_timeval(FILETIME*ft, structtimeval*tv)
{
ULARGE_INTEGERtime;

time.LowPart=ft->dwLowDateTime;
time.HighPart=ft->dwHighDateTime;

tv->tv_sec= (zend_long) (time.QuadPart / 10000000);
tv->tv_usec= (zend_long) ((time.QuadPart % 10000000) / 10);
}

PHPAPIintgetrusage(intwho, structrusage*usage)
{
FILETIMEctime, etime, stime, utime;

memset(usage, 0, sizeof(structrusage));

if (who==RUSAGE_SELF) {
PROCESS_MEMORY_COUNTERSpmc;
HANDLEproc=GetCurrentProcess();

if (!GetProcessTimes(proc, &ctime, &etime, &stime, &utime)) {
return-1;
 } elseif(!GetProcessMemoryInfo(proc, &pmc, sizeof(pmc))) {
return-1;
 }

usage_to_timeval(&stime, &usage->ru_stime);
usage_to_timeval(&utime, &usage->ru_utime);

usage->ru_majflt=pmc.PageFaultCount;
usage->ru_maxrss=pmc.PeakWorkingSetSize / 1024;

return0;
 } elseif (who==RUSAGE_THREAD) {
if (!GetThreadTimes(GetCurrentThread(), &ctime, &etime, &stime, &utime)) {
return-1;
 }

usage_to_timeval(&stime, &usage->ru_stime);
usage_to_timeval(&utime, &usage->ru_utime);

return0;
 } else {
return-1;
 }
}