1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2005 David Xu <davidxu@freebsd.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 * 30 */ 31 32 #ifndef _SIGEV_THREAD_H_ 33 #define _SIGEV_THREAD_H_ 34 35 #include <sys/types.h> 36 #include <sys/queue.h> 37 38 struct sigev_thread; 39 struct sigev_node; 40 41 typedef uintptr_t sigev_id_t; 42 typedef void (*sigev_dispatch_t)(struct sigev_node *); 43 44 struct sigev_node { 45 LIST_ENTRY(sigev_node) sn_link; 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 siginfo_t sn_info; 54 pthread_attr_t sn_attr; 55 struct sigev_thread *sn_tn; 56 }; 57 58 59 struct sigev_thread { 60 LIST_ENTRY(sigev_thread) tn_link; 61 pthread_t tn_thread; 62 struct sigev_node *tn_cur; 63 int tn_refcount; 64 long tn_lwpid; 65 pthread_cond_t tn_cv; 66 }; 67 68 #define SNF_WORKING 0x01 69 #define SNF_REMOVED 0x02 70 #define SNF_SYNC 0x04 71 72 int __sigev_check_init(); 73 struct sigev_node *__sigev_alloc(int, const struct sigevent *, 74 struct sigev_node *, int); 75 struct sigev_node *__sigev_find(int, sigev_id_t); 76 void __sigev_get_sigevent(struct sigev_node *, struct sigevent *, 77 sigev_id_t); 78 int __sigev_register(struct sigev_node *); 79 int __sigev_delete(int, sigev_id_t); 80 int __sigev_delete_node(struct sigev_node *); 81 void __sigev_list_lock(void); 82 void __sigev_list_unlock(void); 83 void __sigev_free(struct sigev_node *); 84 85 #endif 86