sigev_thread.h revision 156136
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 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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/librt/sigev_thread.h 156136 2006-03-01 06:37:34Z davidxu $ 27 * 28 */ 29 30#ifndef _SIGEV_THREAD_H_ 31#define _SIGEV_THREAD_H_ 32 33#include <sys/types.h> 34#include <sys/queue.h> 35#include <setjmp.h> 36 37struct sigev_thread_node; 38struct sigev_node; 39 40typedef uintptr_t sigev_id_t; 41typedef void (*sigev_dispatch_t)(struct sigev_node *, siginfo_t *); 42 43struct sigev_node { 44 LIST_ENTRY(sigev_node) sn_link; 45 LIST_ENTRY(sigev_node) sn_allist; 46 int sn_type; 47 sigev_id_t sn_id; 48 sigev_dispatch_t sn_dispatch; 49 union sigval sn_value; 50 void *sn_func; 51 int sn_flags; 52 int sn_gen; 53 struct sigev_thread_node * sn_tn; 54}; 55 56struct sigev_thread_attr { 57 int sna_policy; 58 int sna_inherit; 59 int sna_prio; 60 int sna_scope; 61 size_t sna_stacksize; 62 void *sna_stackaddr; 63 size_t sna_guardsize; 64}; 65 66struct sigev_thread_node { 67 TAILQ_ENTRY(sigev_thread_node) tn_link; 68 pthread_t tn_thread; 69 struct sigev_node *tn_cur; 70 struct sigev_thread_attr tn_sna; 71 long tn_lwpid; 72 pthread_cond_t tn_cv; 73 jmp_buf tn_jbuf; 74}; 75 76#define SNF_WORKING 0x01 77#define SNF_REMOVED 0x02 78#define SNF_ONESHOT 0x04 79 80#define SIGEV_SIGSERVICE (SIGTHR+1) 81 82int __sigev_check_init(); 83struct sigev_node *__sigev_alloc(int, const struct sigevent *); 84struct sigev_node *__sigev_find(int, sigev_id_t); 85void __sigev_get_sigevent(struct sigev_node *, struct sigevent *, 86 sigev_id_t); 87int __sigev_register(struct sigev_node *); 88int __sigev_delete(int, sigev_id_t); 89int __sigev_delete_node(struct sigev_node *); 90int __sigev_list_lock(void); 91int __sigev_list_unlock(void); 92int __sigev_thread_list_lock(void); 93int __sigev_thread_list_unlock(void); 94void __sigev_free(struct sigev_node *); 95 96#endif 97