1 /* 2 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by John Birrell. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 35 #include <errno.h> 36 #include <signal.h> 37 #include <pthread.h> 38 39 #include "thr_private.h" 40 41 __weak_reference(_pthread_kill, pthread_kill); 42 43 int 44 _pthread_kill(pthread_t pthread, int sig) 45 { 46 struct pthread *curthread = _get_curthread(); 47 int ret; 48 49 /* Check for invalid signal numbers: */ 50 if (sig < 0 || sig > _SIG_MAXSIG) 51 /* Invalid signal: */ 52 ret = EINVAL; 53 /* 54 * Ensure the thread is in the list of active threads, and the 55 * signal is valid (signal 0 specifies error checking only) and 56 * not being ignored: 57 */ 58 else if ((ret = _thr_ref_add(curthread, pthread, /*include dead*/0)) 59 == 0) { 60 if (sig > 0) 61 _thr_send_sig(pthread, sig); 62 _thr_ref_delete(curthread, pthread); 63 } 64 65 /* Return the completion status: */ 66 return (ret); 67 } 68