xref: /PHP-8.1/win32/getrusage.c (revision 01b3fc03)
1 /*
2    +----------------------------------------------------------------------+
3    | Copyright (c) The PHP Group                                          |
4    +----------------------------------------------------------------------+
5    | This source file is subject to version 3.01 of the PHP license,      |
6    | that is bundled with this package in the file LICENSE, and is        |
7    | available through the world-wide-web at the following url:           |
8    | https://www.php.net/license/3_01.txt                                 |
9    | If you did not receive a copy of the PHP license and are unable to   |
10    | obtain it through the world-wide-web, please send a note to          |
11    | license@php.net so we can mail you a copy immediately.               |
12    +----------------------------------------------------------------------+
13    | Authors: Kalle Sommer Nielsen <kalle@php.net>                        |
14    +----------------------------------------------------------------------+
15  */
16 
17 #include <php.h>
18 #include <psapi.h>
19 #include "getrusage.h"
20 
21 /*
22  * Parts of this file is based on code from the OpenVSwitch project, that
23  * is released under the Apache 2.0 license and is copyright 2014 Nicira, Inc.
24  * and have been modified to work with PHP.
25  */
26 
usage_to_timeval(FILETIME * ft,struct timeval * tv)27 static zend_always_inline void usage_to_timeval(FILETIME *ft, struct timeval *tv)
28 {
29 	ULARGE_INTEGER time;
30 
31 	time.LowPart = ft->dwLowDateTime;
32 	time.HighPart = ft->dwHighDateTime;
33 
34 	tv->tv_sec = (zend_long) (time.QuadPart / 10000000);
35 	tv->tv_usec = (zend_long) ((time.QuadPart % 10000000) / 10);
36 }
37 
getrusage(int who,struct rusage * usage)38 PHPAPI int getrusage(int who, struct rusage *usage)
39 {
40 	FILETIME ctime, etime, stime, utime;
41 
42 	memset(usage, 0, sizeof(struct rusage));
43 
44 	if (who == RUSAGE_SELF) {
45 		PROCESS_MEMORY_COUNTERS pmc;
46 		HANDLE proc = GetCurrentProcess();
47 
48 		if (!GetProcessTimes(proc, &ctime, &etime, &stime, &utime)) {
49 			return -1;
50 		} else if(!GetProcessMemoryInfo(proc, &pmc, sizeof(pmc))) {
51 			return -1;
52 		}
53 
54 		usage_to_timeval(&stime, &usage->ru_stime);
55 		usage_to_timeval(&utime, &usage->ru_utime);
56 
57 		usage->ru_majflt = pmc.PageFaultCount;
58 		usage->ru_maxrss = pmc.PeakWorkingSetSize / 1024;
59 
60 		return 0;
61 	} else if (who == RUSAGE_THREAD) {
62 		if (!GetThreadTimes(GetCurrentThread(), &ctime, &etime, &stime, &utime)) {
63 			return -1;
64 		}
65 
66 		usage_to_timeval(&stime, &usage->ru_stime);
67 		usage_to_timeval(&utime, &usage->ru_utime);
68 
69 		return 0;
70 	} else {
71 		return -1;
72 	}
73 }
74