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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
*
*****************************************************************************/
/* Include stuff ************************************************************ */
#include "time.h"
#include "unistd.h"
#include "signal.h"
#include <winbase.h>
#include <mmsystem.h>
#include <errno.h>
int gettimeofday(struct timeval *time_Info, struct timezone *timezone_Info)
{
_int64 mstimer, freq;
/* Get the time, if they want it */
if (time_Info != NULL) {
time_Info->tv_sec = time(NULL);
/* get ticks-per-second of the performance counter
Note the necessary typecast to a LARGE_INTEGER structure
*/
if (!QueryPerformanceFrequency((LARGE_INTEGER *) & freq)) {
time_Info->tv_usec = 0;
} else {
QueryPerformanceCounter((LARGE_INTEGER *) & mstimer);
mstimer = (__int64) (mstimer * .8);
time_Info->tv_usec = (long) (mstimer % 0x0FFFFFFF);
}
}
/* 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;
}
/* this usleep isnt exactly accurate but should do ok */
void usleep(unsigned int useconds)
{
__int64 mstimer, freq;
long now, then;
if (QueryPerformanceFrequency((LARGE_INTEGER *) & freq)) {
QueryPerformanceCounter((LARGE_INTEGER *) & mstimer);
now = (long) (((__int64) (mstimer * .8)) % 0x0FFFFFFF);
then = now + useconds;
while (now < then) {
QueryPerformanceCounter((LARGE_INTEGER *) & mstimer);
now = (long) (((__int64) (mstimer * .8)) % 0x0FFFFFFF);
}
} else {
/*workaround for systems without performance counter
this is actualy a millisecond sleep */
Sleep((int) (useconds / 1000));
}
}
#ifdef HAVE_SETITIMER
#ifndef THREAD_SAFE
unsigned int proftimer, virttimer, realtimer;
extern LPMSG phpmsg;
#endif
struct timer_msg {
int signal;
unsigned int threadid;
};
LPTIMECALLBACK setitimer_timeout(UINT uTimerID, UINT info, DWORD dwUser, DWORD dw1, DWORD dw2)
{
struct timer_msg *msg = (struct timer_msg *) info;
if (msg) {
raise((int) msg->signal);
PostThreadMessage(msg->threadid,
WM_NOTIFY, msg->signal, 0);
free(msg);
}
return 0;
}
int setitimer(int which, const struct itimerval *value, struct itimerval *ovalue)
{
int timeout = value->it_value.tv_sec * 1000 + value->it_value.tv_usec;
int repeat = TIME_ONESHOT;
/*make sure the message queue is initialized */
PeekMessage(phpmsg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
if (timeout > 0) {
struct timer_msg *msg = malloc(sizeof(struct timer_msg));
msg->threadid = GetCurrentThreadId();
if (!ovalue) {
repeat = TIME_PERIODIC;
}
switch (which) {
case ITIMER_REAL:
msg->signal = SIGALRM;
realtimer = timeSetEvent(timeout, 100, (LPTIMECALLBACK) setitimer_timeout, (UINT) msg, repeat);
break;
case ITIMER_VIRT:
msg->signal = SIGVTALRM;
virttimer = timeSetEvent(timeout, 100, (LPTIMECALLBACK) setitimer_timeout, (UINT) msg, repeat);
break;
case ITIMER_PROF:
msg->signal = SIGPROF;
proftimer = timeSetEvent(timeout, 100, (LPTIMECALLBACK) setitimer_timeout, (UINT) msg, repeat);
break;
default:
errno = EINVAL;
return -1;
break;
}
} else {
switch (which) {
case ITIMER_REAL:
timeKillEvent(realtimer);
break;
case ITIMER_VIRT:
timeKillEvent(virttimer);
break;
case ITIMER_PROF:
timeKillEvent(proftimer);
break;
default:
errno = EINVAL;
return -1;
break;
}
}
return 0;
}
#endif
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