home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Skunkware 5
/
Skunkware 5.iso
/
src
/
X11
/
xlock
/
usleep.c
< prev
next >
Wrap
C/C++ Source or Header
|
1995-05-09
|
863b
|
43 lines
#ifndef lint
static char sccsid[] = "@(#)usleep.c 1.3 91/05/24 XLOCK";
#endif
/*-
* usleep.c - OS dependant implementation of usleep().
*
* Copyright (c) 1991 by Patrick J. Naughton.
*
* Revision History:
* 30-Aug-90: written.
*
*/
#include "xlock.h"
int
usleep(usec)
unsigned long usec;
{
#if SYSV && !sco
poll((struct poll *) 0, (size_t) 0, usec / 1000); /* ms resolution */
#else
struct timeval timeout;
timeout.tv_usec = usec % (unsigned long) 1000000;
timeout.tv_sec = usec / (unsigned long) 1000000;
select(0, (void *) 0, (void *) 0, (void *) 0, &timeout);
#endif
return 0;
}
/*
* returns the number of seconds since 01-Jan-70.
* This is used to control rate and timeout in many of the animations.
*/
long
seconds()
{
struct timeval now;
gettimeofday(&now, (struct timezone *) 0);
return now.tv_sec;
}