mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-13 00:30:07 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/* Copyright (C) 1991, 1997, 1999, 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
|
|
/* Set an alarm to go off (generating a SIGALRM signal) in VALUE microseconds.
|
|
If INTERVAL is nonzero, when the alarm goes off, the timer is reset to go
|
|
off every INTERVAL microseconds thereafter.
|
|
|
|
Returns the number of microseconds remaining before the alarm. */
|
|
useconds_t
|
|
ualarm (value, interval)
|
|
useconds_t value;
|
|
useconds_t interval;
|
|
{
|
|
struct itimerval timer, otimer;
|
|
|
|
timer.it_value.tv_sec = 0;
|
|
timer.it_value.tv_usec = value;
|
|
timer.it_interval.tv_sec = 0;
|
|
timer.it_interval.tv_usec = interval;
|
|
|
|
if (__setitimer (ITIMER_REAL, &timer, &otimer) < 0)
|
|
return -1;
|
|
|
|
return (otimer.it_value.tv_sec * 1000000) + otimer.it_value.tv_usec;
|
|
}
|