1 /*****************************************************************************
2 * *
3 * DH_TIME.C *
4 * *
5 * Freely redistributable and modifiable. Use at your own risk. *
6 * *
7 * Copyright 1994 The Downhill Project *
8 *
9 * Modified by Shane Caraveo for use with PHP
10 *
11 *****************************************************************************/
12
13 /* $Id$ */
14
15 /* Include stuff ************************************************************ */
16
17 #include <config.w32.h>
18
19 #include "time.h"
20 #include "unistd.h"
21 #include "signal.h"
22 #include <windows.h>
23 #include <winbase.h>
24 #include <mmsystem.h>
25 #include <errno.h>
26 #include "php_win32_globals.h"
27
28 typedef VOID (WINAPI *MyGetSystemTimeAsFileTime)(LPFILETIME lpSystemTimeAsFileTime);
29
30 static MyGetSystemTimeAsFileTime timefunc = NULL;
31
32 #ifdef PHP_EXPORTS
get_time_func(void)33 static zend_always_inline MyGetSystemTimeAsFileTime get_time_func(void)
34 {
35 MyGetSystemTimeAsFileTime timefunc = NULL;
36 HMODULE hMod = GetModuleHandle("kernel32.dll");
37
38 if (hMod) {
39 /* Max possible resolution <1us, win8/server2012 */
40 timefunc = (MyGetSystemTimeAsFileTime)GetProcAddress(hMod, "GetSystemTimePreciseAsFileTime");
41
42 if(!timefunc) {
43 /* 100ns blocks since 01-Jan-1641 */
44 timefunc = (MyGetSystemTimeAsFileTime)GetProcAddress(hMod, "GetSystemTimeAsFileTime");
45 }
46 }
47
48 return timefunc;
49 }
50
php_win32_init_gettimeofday(void)51 BOOL php_win32_init_gettimeofday(void)
52 {
53 timefunc = get_time_func();
54
55 return (NULL != timefunc);
56 }
57 #endif
58
getfilesystemtime(struct timeval * tv)59 static zend_always_inline int getfilesystemtime(struct timeval *tv)
60 {
61 FILETIME ft;
62 unsigned __int64 ff = 0;
63 ULARGE_INTEGER fft;
64
65 timefunc(&ft);
66
67 /*
68 * Do not cast a pointer to a FILETIME structure to either a
69 * ULARGE_INTEGER* or __int64* value because it can cause alignment faults on 64-bit Windows.
70 * via http://technet.microsoft.com/en-us/library/ms724284(v=vs.85).aspx
71 */
72 fft.HighPart = ft.dwHighDateTime;
73 fft.LowPart = ft.dwLowDateTime;
74 ff = fft.QuadPart;
75
76 ff /= 10Ui64; /* convert to microseconds */
77 ff -= 11644473600000000Ui64; /* convert to unix epoch */
78
79 tv->tv_sec = (long)(ff / 1000000Ui64);
80 tv->tv_usec = (long)(ff % 1000000Ui64);
81
82 return 0;
83 }
84
gettimeofday(struct timeval * time_Info,struct timezone * timezone_Info)85 PHPAPI int gettimeofday(struct timeval *time_Info, struct timezone *timezone_Info)
86 {
87 /* Get the time, if they want it */
88 if (time_Info != NULL) {
89 getfilesystemtime(time_Info);
90 }
91 /* Get the timezone, if they want it */
92 if (timezone_Info != NULL) {
93 _tzset();
94 timezone_Info->tz_minuteswest = _timezone;
95 timezone_Info->tz_dsttime = _daylight;
96 }
97 /* And return */
98 return 0;
99 }
100
usleep(unsigned int useconds)101 PHPAPI int usleep(unsigned int useconds)
102 {
103 HANDLE timer;
104 LARGE_INTEGER due;
105
106 due.QuadPart = -(10 * (__int64)useconds);
107
108 timer = CreateWaitableTimer(NULL, TRUE, NULL);
109 SetWaitableTimer(timer, &due, 0, NULL, NULL, 0);
110 WaitForSingleObject(timer, INFINITE);
111 CloseHandle(timer);
112 return 0;
113 }
114
nanosleep(const struct timespec * rqtp,struct timespec * rmtp)115 PHPAPI int nanosleep( const struct timespec * rqtp, struct timespec * rmtp )
116 {
117 if (rqtp->tv_nsec > 999999999) {
118 /* The time interval specified 1,000,000 or more microseconds. */
119 errno = EINVAL;
120 return -1;
121 }
122 return usleep( rqtp->tv_sec * 1000000 + rqtp->tv_nsec / 1000 );
123 }
124
125 /*
126 * Local variables:
127 * tab-width: 4
128 * c-basic-offset: 4
129 * End:
130 * vim600: sw=4 ts=4 fdm=marker
131 * vim<600: sw=4 ts=4
132 */
133
