1 /* $NetBSD: pthread_misc.c,v 1.2 2007/08/16 13:54:17 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, 2006, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nathan J. Williams. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __RCSID("$NetBSD: pthread_misc.c,v 1.2 2007/08/16 13:54:17 ad Exp $"); 41 42 #include <sys/types.h> 43 #include <sys/signal.h> 44 #include <sys/time.h> 45 46 #include <errno.h> 47 #include <lwp.h> 48 49 #include "pthread.h" 50 #include "pthread_int.h" 51 52 int _sys___sigprocmask14(int, const sigset_t *, sigset_t *); 53 int _sys_nanosleep(const struct timespec *, struct timespec *); 54 55 __strong_alias(_nanosleep, nanosleep) 56 __strong_alias(__libc_thr_sigsetmask,pthread_sigmask) 57 __strong_alias(__sigprocmask14,pthread_sigmask) 58 __strong_alias(__libc_thr_yield,_sys_sched_yield) 59 60 /*ARGSUSED*/ 61 int 62 pthread_getschedparam(pthread_t thread, int *policy, struct sched_param *param) 63 { 64 if (param == NULL || policy == NULL) 65 return EINVAL; 66 param->sched_priority = 0; 67 *policy = SCHED_RR; 68 return 0; 69 } 70 71 /*ARGSUSED*/ 72 int 73 pthread_setschedparam(pthread_t thread, int policy, 74 const struct sched_param *param) 75 { 76 if (param == NULL || policy < SCHED_FIFO || policy > SCHED_RR) 77 return EINVAL; 78 if (param->sched_priority > 0 || policy != SCHED_RR) 79 return ENOTSUP; 80 return 0; 81 } 82 83 int 84 pthread_kill(pthread_t thread, int sig) 85 { 86 87 if ((sig < 0) || (sig >= _NSIG)) 88 return EINVAL; 89 if (pthread__find(thread) != 0) 90 return ESRCH; 91 92 return _lwp_kill(thread->pt_lid, sig); 93 } 94 95 int 96 pthread_sigmask(int how, const sigset_t *set, sigset_t *oset) 97 { 98 99 return _sys___sigprocmask14(how, set, oset); 100 } 101 102 int 103 nanosleep(const struct timespec *rqtp, struct timespec *rmtp) 104 { 105 106 /* 107 * For now, just nanosleep. In the future, maybe pass a ucontext_t 108 * to _lwp_nanosleep() and allow it to recycle our kernel stack. 109 */ 110 return _sys_nanosleep(rqtp, rmtp); 111 } 112