| thr_once.c (179417) | thr_once.c (220888) |
|---|---|
| 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 * | 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_once.c 179417 2008-05-30 00:02:59Z davidxu $ | 26 * $FreeBSD: head/lib/libthr/thread/thr_once.c 220888 2011-04-20 14:19:34Z rstone $ |
| 27 * 28 */ 29 30#include "namespace.h" 31#include <pthread.h> 32#include "un-namespace.h" 33 34#include "thr_private.h" --- 24 unchanged lines hidden (view full) --- 59} 60 61int 62_pthread_once(pthread_once_t *once_control, void (*init_routine) (void)) 63{ 64 struct pthread *curthread; 65 int state; 66 | 27 * 28 */ 29 30#include "namespace.h" 31#include <pthread.h> 32#include "un-namespace.h" 33 34#include "thr_private.h" --- 24 unchanged lines hidden (view full) --- 59} 60 61int 62_pthread_once(pthread_once_t *once_control, void (*init_routine) (void)) 63{ 64 struct pthread *curthread; 65 int state; 66 |
| 67 _thr_check_init(); 68 |
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| 67 for (;;) { 68 state = once_control->state; 69 if (state == ONCE_DONE) 70 return (0); 71 if (state == ONCE_NEVER_DONE) { 72 if (atomic_cmpset_acq_int(&once_control->state, state, ONCE_IN_PROGRESS)) 73 break; 74 } else if (state == ONCE_IN_PROGRESS) { --- 23 unchanged lines hidden --- | 69 for (;;) { 70 state = once_control->state; 71 if (state == ONCE_DONE) 72 return (0); 73 if (state == ONCE_NEVER_DONE) { 74 if (atomic_cmpset_acq_int(&once_control->state, state, ONCE_IN_PROGRESS)) 75 break; 76 } else if (state == ONCE_IN_PROGRESS) { --- 23 unchanged lines hidden --- |