/
time.c
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/
time.c
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/*****************************************************************************
* *
* DH_TIME.C *
* *
* Freely redistributable and modifiable. Use at your own risk. *
* *
* Copyright 1994 The Downhill Project *
*
* Modified by Shane Caraveo for use with PHP
*
*****************************************************************************/
/* $Id$ */
/* Include stuff ************************************************************ */
#include <config.w32.h>
#include "time.h"
#include "unistd.h"
#include "signal.h"
#include <windows.h>
#include <winbase.h>
#include <mmsystem.h>
#include <errno.h>
#include "php_win32_globals.h"
typedef VOID (WINAPI *MyGetSystemTimeAsFileTime)(LPFILETIME lpSystemTimeAsFileTime);
static MyGetSystemTimeAsFileTime timefunc = NULL;
#ifdef PHP_EXPORTS
static zend_always_inline MyGetSystemTimeAsFileTime get_time_func(void)
{
MyGetSystemTimeAsFileTime timefunc = NULL;
HMODULE hMod = GetModuleHandle("kernel32.dll");
if (hMod) {
/* Max possible resolution <1us, win8/server2012 */
timefunc = (MyGetSystemTimeAsFileTime)GetProcAddress(hMod, "GetSystemTimePreciseAsFileTime");
if(!timefunc) {
/* 100ns blocks since 01-Jan-1641 */
timefunc = (MyGetSystemTimeAsFileTime)GetProcAddress(hMod, "GetSystemTimeAsFileTime");
}
}
return timefunc;
}
BOOL php_win32_init_gettimeofday(void)
{
timefunc = get_time_func();
return (NULL != timefunc);
}
#endif
static zend_always_inline int getfilesystemtime(struct timeval *tv)
{
FILETIME ft;
unsigned __int64 ff = 0;
ULARGE_INTEGER fft;
timefunc(&ft);
/*
* Do not cast a pointer to a FILETIME structure to either a
* ULARGE_INTEGER* or __int64* value because it can cause alignment faults on 64-bit Windows.
* via http://technet.microsoft.com/en-us/library/ms724284(v=vs.85).aspx
*/
fft.HighPart = ft.dwHighDateTime;
fft.LowPart = ft.dwLowDateTime;
ff = fft.QuadPart;
ff /= 10Ui64; /* convert to microseconds */
ff -= 11644473600000000Ui64; /* convert to unix epoch */
tv->tv_sec = (long)(ff / 1000000Ui64);
tv->tv_usec = (long)(ff % 1000000Ui64);
return 0;
}
PHPAPI int gettimeofday(struct timeval *time_Info, struct timezone *timezone_Info)
{
/* Get the time, if they want it */
if (time_Info != NULL) {
getfilesystemtime(time_Info);
}
/* Get the timezone, if they want it */
if (timezone_Info != NULL) {
_tzset();
timezone_Info->tz_minuteswest = _timezone;
timezone_Info->tz_dsttime = _daylight;
}
/* And return */
return 0;
}
PHPAPI int usleep(unsigned int useconds)
{
HANDLE timer;
LARGE_INTEGER due;
due.QuadPart = -(10 * (__int64)useconds);
timer = CreateWaitableTimer(NULL, TRUE, NULL);
SetWaitableTimer(timer, &due, 0, NULL, NULL, 0);
WaitForSingleObject(timer, INFINITE);
CloseHandle(timer);
return 0;
}
PHPAPI int nanosleep( const struct timespec * rqtp, struct timespec * rmtp )
{
if (rqtp->tv_nsec > 999999999) {
/* The time interval specified 1,000,000 or more microseconds. */
errno = EINVAL;
return -1;
}
return usleep( rqtp->tv_sec * 1000000 + rqtp->tv_nsec / 1000 );
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/