69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* Copyright (C) 1991, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stddef.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <signal.h>
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extern int __libc_nanosleep (const struct timespec *requested_time,
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struct timespec *remaining);
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int
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__setitimer (which, new, old)
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enum __itimer_which which;
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const struct itimerval *new;
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struct itimerval *old;
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{
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if (new == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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switch (which)
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{
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default:
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__set_errno (EINVAL);
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return -1;
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case ITIMER_VIRTUAL:
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case ITIMER_PROF:
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__set_errno (ENOSYS);
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return -1;
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case ITIMER_REAL:
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break;
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}
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switch (__fork())
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{
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case -1: exit(-1);
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case 0:
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{
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struct timespec ts ={tv_sec:(long int)new->it_value.tv_sec,tv_nsec:0};
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__libc_nanosleep(&ts,&ts);
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__kill(getppid(), SIGALRM);
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exit(0);
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}
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default:
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}
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return 0;
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}
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weak_alias (__setitimer, setitimer)
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