1/* 2 * Copyright (c) 2005, David Xu <davidxu@freebsd.org> 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 unchanged lines hidden (view full) --- 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * |
26 * $FreeBSD: head/lib/libthr/thread/thr_join.c 211524 2010-08-20 05:15:39Z davidxu $ |
27 * 28 */ 29 30#include "namespace.h" 31#include <errno.h> 32#include <pthread.h> 33#include "un-namespace.h" 34 --- 28 unchanged lines hidden (view full) --- 63{ 64 if (abstime == NULL || abstime->tv_sec < 0 || abstime->tv_nsec < 0 || 65 abstime->tv_nsec >= 1000000000) 66 return (EINVAL); 67 68 return (join_common(pthread, thread_return, abstime)); 69} 70 |
71/* 72 * Cancellation behavior: 73 * if the thread is canceled, joinee is not recycled. 74 */ |
75static int 76join_common(pthread_t pthread, void **thread_return, 77 const struct timespec *abstime) 78{ 79 struct pthread *curthread = _get_curthread(); 80 struct timespec ts, ts2, *tsp; 81 void *tmp; 82 long tid; --- 19 unchanged lines hidden (view full) --- 102 return (ret); 103 } 104 /* Set the running thread to be the joiner: */ 105 pthread->joiner = curthread; 106 107 THREAD_LIST_UNLOCK(curthread); 108 109 THR_CLEANUP_PUSH(curthread, backout_join, pthread); |
110 _thr_cancel_enter_defer(curthread, 1); |
111 112 tid = pthread->tid; 113 while (pthread->tid != TID_TERMINATED) { |
114 _thr_testcancel(curthread); |
115 if (abstime != NULL) { 116 clock_gettime(CLOCK_REALTIME, &ts); 117 TIMESPEC_SUB(&ts2, abstime, &ts); 118 if (ts2.tv_sec < 0) { 119 ret = ETIMEDOUT; 120 break; 121 } 122 tsp = &ts2; 123 } else 124 tsp = NULL; 125 ret = _thr_umtx_wait(&pthread->tid, tid, tsp); 126 if (ret == ETIMEDOUT) 127 break; 128 } 129 |
130 _thr_cancel_leave_defer(curthread, 0); |
131 THR_CLEANUP_POP(curthread, 0); 132 133 if (ret == ETIMEDOUT) { 134 THREAD_LIST_LOCK(curthread); 135 pthread->joiner = NULL; 136 THREAD_LIST_UNLOCK(curthread); 137 } else { 138 ret = 0; --- 12 unchanged lines hidden --- |