xref: /PHP-7.0/win32/getrusage.c (revision 478f119a)
1 /*
2    +----------------------------------------------------------------------+
3    | PHP Version 7                                                        |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1997-2017 The PHP Group                                |
6    +----------------------------------------------------------------------+
7    | This source file is subject to version 3.01 of the PHP license,      |
8    | that is bundled with this package in the file LICENSE, and is        |
9    | available through the world-wide-web at the following url:           |
10    | http://www.php.net/license/3_01.txt                                  |
11    | If you did not receive a copy of the PHP license and are unable to   |
12    | obtain it through the world-wide-web, please send a note to          |
13    | license@php.net so we can mail you a copy immediately.               |
14    +----------------------------------------------------------------------+
15    | Authors: Kalle Sommer Nielsen <kalle@php.net>                        |
16    +----------------------------------------------------------------------+
17  */
18 
19 #include <php.h>
20 #include <psapi.h>
21 #include "getrusage.h"
22 
23 /*
24  * Parts of this file is based on code from the OpenVSwitch project, that
25  * is released under the Apache 2.0 license and is copyright 2014 Nicira, Inc.
26  * and have been modified to work with PHP.
27  */
28 
usage_to_timeval(FILETIME * ft,struct timeval * tv)29 static void usage_to_timeval(FILETIME *ft, struct timeval *tv)
30 {
31 	ULARGE_INTEGER time;
32 
33 	time.LowPart = ft->dwLowDateTime;
34 	time.HighPart = ft->dwHighDateTime;
35 
36 	tv->tv_sec = (zend_long) (time.QuadPart / 10000000);
37 	tv->tv_usec = (zend_long) ((time.QuadPart % 10000000) / 10);
38 }
39 
getrusage(int who,struct rusage * usage)40 PHPAPI int getrusage(int who, struct rusage *usage)
41 {
42 	FILETIME ctime, etime, stime, utime;
43 
44 	memset(usage, 0, sizeof(struct rusage));
45 
46 	if (who == RUSAGE_SELF) {
47 		PROCESS_MEMORY_COUNTERS pmc;
48 		HANDLE proc = GetCurrentProcess();
49 
50 		if (!GetProcessTimes(proc, &ctime, &etime, &stime, &utime)) {
51 			return -1;
52 		} else if(!GetProcessMemoryInfo(proc, &pmc, sizeof(pmc))) {
53 			return -1;
54 		}
55 
56 		usage_to_timeval(&stime, &usage->ru_stime);
57 		usage_to_timeval(&utime, &usage->ru_utime);
58 
59 		usage->ru_majflt = pmc.PageFaultCount;
60 		usage->ru_maxrss = pmc.PeakWorkingSetSize / 1024;
61 
62 		return 0;
63 	} else if (who == RUSAGE_THREAD) {
64 		if (!GetThreadTimes(GetCurrentThread(), &ctime, &etime, &stime, &utime)) {
65 			return -1;
66 		}
67 
68 		usage_to_timeval(&stime, &usage->ru_stime);
69 		usage_to_timeval(&utime, &usage->ru_utime);
70 
71 		return 0;
72 	} else {
73 		return -1;
74 	}
75 }
76 
77 /*
78  * Local variables:
79  * tab-width: 4
80  * c-basic-offset: 4
81  * End:
82  * vim600: sw=4 ts=4 fdm=marker
83  * vim<600: sw=4 ts=4
84  */
85