timer.c File Reference

#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <sys/time.h>
#include "rle_config.h"

Include dependency graph for timer.c:

Go to the source code of this file.

Macros
#define	USPS   1000000 /* number of microseconds in a second */
#define	TICK   10000 /* system clock resolution in microseconds */

Functions
static void	sleepx ()
void	set_timer (unsigned n)
void	wait_timer ()

Variables
static char	rcsid [] = "$Header: /l/spencer/src/urt/get/getx11/RCS/timer.c,v 3.0.1.3 1992/03/04 19:31:40 spencer Exp $"
static int	ringring
static void(*	ofunc )()

Macro Definition Documentation

#define TICK   10000 /* system clock resolution in microseconds */

Definition at line 32 of file timer.c.

#define USPS   1000000 /* number of microseconds in a second */

Definition at line 31 of file timer.c.

Function Documentation

void set_timer

(

unsigned

n

)

Definition at line 46 of file timer.c.

{
#ifndef NO_ITIMER
    struct itimerval itv;
    register struct itimerval *itp = &itv;
    if (n == 0)
    {
    ringring = 1;
    return;
    }
    timerclear(&itp->it_interval);
    itp->it_value.tv_sec = n / USPS;
    itp->it_value.tv_usec = n % USPS;
    ofunc = (void (*)())signal(SIGALRM, sleepx);

    ringring = 0;
    (void) setitimer(ITIMER_REAL, itp, (struct itimerval *)0);
#endif
}

static void sleepx ( )

static

Definition at line 39 of file timer.c.

References ringring.

{
        ringring = 1;
}

void wait_timer

(

void

)

Definition at line 72 of file timer.c.

References ofunc, and ringring.

{
#ifndef NO_ITIMER
    while (!ringring)
    sigpause( ~sigmask(SIGALRM));
    signal(SIGALRM, ofunc);
#endif
}

Variable Documentation

void(* ofunc) ()

static

Definition at line 36 of file timer.c.

Referenced by wait_timer().

char rcsid[] = "$Header: /l/spencer/src/urt/get/getx11/RCS/timer.c,v 3.0.1.3 1992/03/04 19:31:40 spencer Exp $"

static

Definition at line 22 of file timer.c.

int ringring

static

Definition at line 35 of file timer.c.

Referenced by sleepx(), and wait_timer().