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 * $DragonFly: src/lib/libthread_xu/thread/thr_kill.c,v 1.4 2006/04/06 13:03:09 davidxu Exp $ 30 */ 31 32 #include "namespace.h" 33 #include <machine/tls.h> 34 35 #include <errno.h> 36 #include <signal.h> 37 #include <pthread.h> 38 #include "un-namespace.h" 39 40 #include "thr_private.h" 41 42 int 43 _pthread_kill(pthread_t pthread, int sig) 44 { 45 struct pthread *curthread = tls_get_curthread(); 46 int ret; 47 48 /* Check for invalid signal numbers: */ 49 if (sig < 0 || sig > _SIG_MAXSIG) 50 /* Invalid signal: */ 51 ret = EINVAL; 52 /* 53 * Ensure the thread is in the list of active threads, and the 54 * signal is valid (signal 0 specifies error checking only) and 55 * not being ignored: 56 */ 57 else if ((ret = _thr_ref_add(curthread, pthread, /*include dead*/0)) 58 == 0) { 59 if (sig > 0) 60 _thr_send_sig(pthread, sig); 61 _thr_ref_delete(curthread, pthread); 62 } 63 64 /* Return the completion status: */ 65 return (ret); 66 } 67 68 __strong_reference(_pthread_kill, pthread_kill); 69