1/* 2 * Copyright (c) 1995 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 --- 15 unchanged lines hidden (view full) --- 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: head/lib/libthr/thread/thr_setprio.c 160287 2006-07-12 06:13:18Z davidxu $ |
33 */ 34 35#include "namespace.h" 36#include <pthread.h> 37#include "un-namespace.h" 38 39#include "thr_private.h" 40 41__weak_reference(_pthread_setprio, pthread_setprio); 42 43int 44_pthread_setprio(pthread_t pthread, int prio) 45{ |
46 struct pthread *curthread = _get_curthread(); 47 struct sched_param param; 48 int ret; |
49 |
50 param.sched_priority = prio; 51 if (pthread == curthread) { 52 THR_LOCK(curthread); 53 ret = sched_setparam((pid_t)curthread->tid, ¶m); 54 if (ret == -1) 55 ret = errno; 56 else 57 curthread->attr.prio = prio; 58 THR_UNLOCK(curthread); 59 } else if ((ret = _thr_ref_add(curthread, pthread, /*include dead*/0)) 60 == 0) { 61 THR_THREAD_LOCK(curthread, pthread); 62 ret = sched_setparam((pid_t)pthread->tid, ¶m); 63 if (ret == -1) 64 ret = errno; 65 else 66 pthread->attr.prio = prio; 67 THR_THREAD_UNLOCK(curthread, pthread); 68 _thr_ref_delete(curthread, pthread); |
69 } |
70 return (ret); 71} |