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 * $FreeBSD$ 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 36 struct sigev_thread; 37 struct sigev_node; 38 39 typedef uintptr_t sigev_id_t; 40 typedef void (*sigev_dispatch_t)(struct sigev_node *); 41 42 struct sigev_node { 43 LIST_ENTRY(sigev_node) sn_link; 44 int sn_type; 45 sigev_id_t sn_id; 46 sigev_dispatch_t sn_dispatch; 47 union sigval sn_value; 48 void *sn_func; 49 int sn_flags; 50 int sn_gen; 51 siginfo_t sn_info; 52 pthread_attr_t sn_attr; 53 struct sigev_thread *sn_tn; 54 }; 55 56 57 struct sigev_thread { 58 LIST_ENTRY(sigev_thread) tn_link; 59 pthread_t tn_thread; 60 struct sigev_node *tn_cur; 61 int tn_refcount; 62 long tn_lwpid; 63 pthread_cond_t tn_cv; 64 }; 65 66 #define SNF_WORKING 0x01 67 #define SNF_REMOVED 0x02 68 #define SNF_SYNC 0x04 69 70 #define SIGSERVICE (SIGTHR+1) 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