75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by John Birrell.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <pthread.h>
|
|
#include "pthread_private.h"
|
|
|
|
__weak_reference(_pthread_kill, pthread_kill);
|
|
|
|
int
|
|
_pthread_kill(pthread_t pthread, int sig)
|
|
{
|
|
int ret;
|
|
|
|
/* Check for invalid signal numbers: */
|
|
if (sig < 0 || sig >= NSIG)
|
|
/* Invalid signal: */
|
|
ret = EINVAL;
|
|
/*
|
|
* Ensure the thread is in the list of active threads, and the
|
|
* signal is valid (signal 0 specifies error checking only) and
|
|
* not being ignored:
|
|
*/
|
|
else if (((ret = _find_thread(pthread)) == 0) && (sig > 0) &&
|
|
(_thread_sigact[sig - 1].sa_handler != SIG_IGN)) {
|
|
/*
|
|
* Defer signals to protect the scheduling queues from
|
|
* access by the signal handler:
|
|
*/
|
|
_thread_kern_sig_defer();
|
|
|
|
_thread_sig_send(pthread, sig);
|
|
|
|
/*
|
|
* Undefer and handle pending signals, yielding if
|
|
* necessary:
|
|
*/
|
|
_thread_kern_sig_undefer();
|
|
}
|
|
|
|
/* Return the completion status: */
|
|
return (ret);
|
|
}
|