xref: /PHP-7.2/ext/standard/microtime.c (revision 7a7ec01a)
1 /*
2    +----------------------------------------------------------------------+
3    | PHP Version 7                                                        |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1997-2018 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    | Author: Paul Panotzki - Bunyip Information Systems                   |
16    +----------------------------------------------------------------------+
17  */
18 
19 /* $Id$ */
20 
21 #include "php.h"
22 
23 #ifdef HAVE_SYS_TYPES_H
24 #include <sys/types.h>
25 #endif
26 #ifdef PHP_WIN32
27 #include "win32/time.h"
28 #include "win32/getrusage.h"
29 #else
30 #include <sys/time.h>
31 #endif
32 #ifdef HAVE_SYS_RESOURCE_H
33 #include <sys/resource.h>
34 #endif
35 #ifdef HAVE_UNISTD_H
36 #include <unistd.h>
37 #endif
38 #include <stdlib.h>
39 #include <string.h>
40 #include <stdio.h>
41 #include <errno.h>
42 
43 #include "microtime.h"
44 #include "ext/date/php_date.h"
45 
46 #define NUL  '\0'
47 #define MICRO_IN_SEC 1000000.00
48 #define SEC_IN_MIN 60
49 
50 #ifdef HAVE_GETTIMEOFDAY
_php_gettimeofday(INTERNAL_FUNCTION_PARAMETERS,int mode)51 static void _php_gettimeofday(INTERNAL_FUNCTION_PARAMETERS, int mode)
52 {
53 	zend_bool get_as_float = 0;
54 	struct timeval tp = {0};
55 
56 	ZEND_PARSE_PARAMETERS_START(0, 1)
57 		Z_PARAM_OPTIONAL
58 		Z_PARAM_BOOL(get_as_float)
59 	ZEND_PARSE_PARAMETERS_END();
60 
61 	if (gettimeofday(&tp, NULL)) {
62 		RETURN_FALSE;
63 	}
64 
65 	if (get_as_float) {
66 		RETURN_DOUBLE((double)(tp.tv_sec + tp.tv_usec / MICRO_IN_SEC));
67 	}
68 
69 	if (mode) {
70 		timelib_time_offset *offset;
71 
72 		offset = timelib_get_time_zone_info(tp.tv_sec, get_timezone_info());
73 
74 		array_init(return_value);
75 		add_assoc_long(return_value, "sec", tp.tv_sec);
76 		add_assoc_long(return_value, "usec", tp.tv_usec);
77 
78 		add_assoc_long(return_value, "minuteswest", -offset->offset / SEC_IN_MIN);
79 		add_assoc_long(return_value, "dsttime", offset->is_dst);
80 
81 		timelib_time_offset_dtor(offset);
82 	} else {
83 		char ret[100];
84 
85 		snprintf(ret, 100, "%.8F %ld", tp.tv_usec / MICRO_IN_SEC, tp.tv_sec);
86 		RETURN_STRING(ret);
87 	}
88 }
89 
90 /* {{{ proto mixed microtime([bool get_as_float])
91    Returns either a string or a float containing the current time in seconds and microseconds */
PHP_FUNCTION(microtime)92 PHP_FUNCTION(microtime)
93 {
94 	_php_gettimeofday(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
95 }
96 /* }}} */
97 
98 /* {{{ proto array gettimeofday([bool get_as_float])
99    Returns the current time as array */
PHP_FUNCTION(gettimeofday)100 PHP_FUNCTION(gettimeofday)
101 {
102 	_php_gettimeofday(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
103 }
104 #endif
105 /* }}} */
106 
107 #ifdef HAVE_GETRUSAGE
108 /* {{{ proto array getrusage([int who])
109    Returns an array of usage statistics */
PHP_FUNCTION(getrusage)110 PHP_FUNCTION(getrusage)
111 {
112 	struct rusage usg;
113 	zend_long pwho = 0;
114 	int who = RUSAGE_SELF;
115 
116 	ZEND_PARSE_PARAMETERS_START(0, 1)
117 		Z_PARAM_OPTIONAL
118 		Z_PARAM_LONG(pwho)
119 	ZEND_PARSE_PARAMETERS_END();
120 
121 	if (pwho == 1) {
122 		who = RUSAGE_CHILDREN;
123 	}
124 
125 	memset(&usg, 0, sizeof(struct rusage));
126 
127 	if (getrusage(who, &usg) == -1) {
128 		RETURN_FALSE;
129 	}
130 
131 	array_init(return_value);
132 
133 #define PHP_RUSAGE_PARA(a) \
134 		add_assoc_long(return_value, #a, usg.a)
135 
136 #ifdef PHP_WIN32 /* Windows only implements a limited amount of fields from the rusage struct */
137 	PHP_RUSAGE_PARA(ru_majflt);
138 	PHP_RUSAGE_PARA(ru_maxrss);
139 #elif !defined( _OSD_POSIX) && !defined(__BEOS__) /* BS2000 has only a few fields in the rusage struct*/
140 	PHP_RUSAGE_PARA(ru_oublock);
141 	PHP_RUSAGE_PARA(ru_inblock);
142 	PHP_RUSAGE_PARA(ru_msgsnd);
143 	PHP_RUSAGE_PARA(ru_msgrcv);
144 	PHP_RUSAGE_PARA(ru_maxrss);
145 	PHP_RUSAGE_PARA(ru_ixrss);
146 	PHP_RUSAGE_PARA(ru_idrss);
147 	PHP_RUSAGE_PARA(ru_minflt);
148 	PHP_RUSAGE_PARA(ru_majflt);
149 	PHP_RUSAGE_PARA(ru_nsignals);
150 	PHP_RUSAGE_PARA(ru_nvcsw);
151 	PHP_RUSAGE_PARA(ru_nivcsw);
152 	PHP_RUSAGE_PARA(ru_nswap);
153 #endif /*_OSD_POSIX*/
154 	PHP_RUSAGE_PARA(ru_utime.tv_usec);
155 	PHP_RUSAGE_PARA(ru_utime.tv_sec);
156 	PHP_RUSAGE_PARA(ru_stime.tv_usec);
157 	PHP_RUSAGE_PARA(ru_stime.tv_sec);
158 
159 #undef PHP_RUSAGE_PARA
160 }
161 #endif /* HAVE_GETRUSAGE */
162 
163 /* }}} */
164 
165 /*
166  * Local variables:
167  * tab-width: 4
168  * c-basic-offset: 4
169  * End:
170  * vim600: sw=4 ts=4 fdm=marker
171  * vim<600: sw=4 ts=4
172  */
173