/* $NetBSD: pthread_misc.c,v 1.15.32.1 2020/01/26 10:55:16 martin Exp $ */ /*- * Copyright (c) 2001, 2006, 2007, 2008 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Nathan J. Williams. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #include __RCSID("$NetBSD: pthread_misc.c,v 1.15.32.1 2020/01/26 10:55:16 martin Exp $"); #include #include #include #include #include #include #include #include #include #include "pthread.h" #include "pthread_int.h" #include "reentrant.h" int pthread__sched_yield(void); int _sys___sigprocmask14(int, const sigset_t *, sigset_t *); int _sys_sched_yield(void); __strong_alias(__libc_thr_sigsetmask,pthread_sigmask) __strong_alias(__sigprocmask14,pthread_sigmask) __strong_alias(__libc_thr_yield,pthread__sched_yield) int pthread_getschedparam(pthread_t thread, int *policy, struct sched_param *param) { if (pthread__find(thread) != 0) return ESRCH; if (_sched_getparam(getpid(), thread->pt_lid, policy, param) < 0) return errno; return 0; } int pthread_setschedparam(pthread_t thread, int policy, const struct sched_param *param) { struct sched_param sp; if (pthread__find(thread) != 0) return ESRCH; memcpy(&sp, param, sizeof(struct sched_param)); if (_sched_setparam(getpid(), thread->pt_lid, policy, &sp) < 0) return errno; return 0; } int pthread_getaffinity_np(pthread_t thread, size_t size, cpuset_t *cpuset) { if (pthread__find(thread) != 0) return ESRCH; if (_sched_getaffinity(getpid(), thread->pt_lid, size, cpuset) < 0) return errno; return 0; } int pthread_setaffinity_np(pthread_t thread, size_t size, cpuset_t *cpuset) { if (pthread__find(thread) != 0) return ESRCH; if (_sched_setaffinity(getpid(), thread->pt_lid, size, cpuset) < 0) return errno; return 0; } int pthread_setschedprio(pthread_t thread, int prio) { struct sched_param sp; if (pthread__find(thread) != 0) return ESRCH; sp.sched_priority = prio; if (_sched_setparam(getpid(), thread->pt_lid, SCHED_NONE, &sp) < 0) return errno; return 0; } int pthread_kill(pthread_t thread, int sig) { if ((sig < 0) || (sig >= _NSIG)) return EINVAL; if (pthread__find(thread) != 0) return ESRCH; if (_lwp_kill(thread->pt_lid, sig)) return errno; return 0; } int pthread_sigmask(int how, const sigset_t *set, sigset_t *oset) { if (_sys___sigprocmask14(how, set, oset)) return errno; return 0; } int pthread__sched_yield(void) { if (__predict_false(__uselibcstub)) return __libc_thr_yield(); return _sys_sched_yield(); }