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. Neither the name of the author nor the names of any co-contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include "namespace.h" 34 #include <errno.h> 35 #include <signal.h> 36 #include <pthread.h> 37 #include "un-namespace.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; 47 int ret; 48 49 /* Check for invalid signal numbers: */ 50 if (sig < 0 || sig > _SIG_MAXSIG) 51 /* Invalid signal: */ 52 return (EINVAL); 53 54 curthread = _get_curthread(); 55 56 /* 57 * Ensure the thread is in the list of active threads, and the 58 * signal is valid (signal 0 specifies error checking only) and 59 * not being ignored: 60 */ 61 if (curthread == pthread) { 62 if (sig > 0) 63 _thr_send_sig(pthread, sig); 64 ret = 0; 65 } else if ((ret = _thr_find_thread(curthread, pthread, 66 /*include dead*/0)) == 0) { 67 if (sig > 0) 68 _thr_send_sig(pthread, sig); 69 THR_THREAD_UNLOCK(curthread, pthread); 70 } 71 72 /* Return the completion status: */ 73 return (ret); 74 } 75