freebsd-src/lib/librt/sigev_thread.h
David Xu c5a4f4eff2 1. Always call user callback function in newly created thread, it seems
POSIX implies that the user callback function must be executed in clean
environment.
2. Use newly introduced pthread stubs in libc.
2006-03-07 08:28:07 +00:00

86 lines
2.6 KiB
C

/*
* Copyright (c) 2005 David Xu <davidxu@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef _SIGEV_THREAD_H_
#define _SIGEV_THREAD_H_
#include <sys/types.h>
#include <sys/queue.h>
struct sigev_thread;
struct sigev_node;
typedef uintptr_t sigev_id_t;
typedef void (*sigev_dispatch_t)(struct sigev_node *);
struct sigev_node {
LIST_ENTRY(sigev_node) sn_link;
int sn_type;
sigev_id_t sn_id;
sigev_dispatch_t sn_dispatch;
union sigval sn_value;
void *sn_func;
int sn_flags;
int sn_gen;
siginfo_t sn_info;
pthread_attr_t sn_attr;
struct sigev_thread *sn_tn;
};
struct sigev_thread {
LIST_ENTRY(sigev_thread) tn_link;
pthread_t tn_thread;
struct sigev_node *tn_cur;
int tn_refcount;
long tn_lwpid;
pthread_cond_t tn_cv;
};
#define SNF_WORKING 0x01
#define SNF_REMOVED 0x02
#define SNF_SYNC 0x04
#define SIGSERVICE (SIGTHR+1)
int __sigev_check_init();
struct sigev_node *__sigev_alloc(int, const struct sigevent *,
struct sigev_node *, int);
struct sigev_node *__sigev_find(int, sigev_id_t);
void __sigev_get_sigevent(struct sigev_node *, struct sigevent *,
sigev_id_t);
int __sigev_register(struct sigev_node *);
int __sigev_delete(int, sigev_id_t);
int __sigev_delete_node(struct sigev_node *);
void __sigev_list_lock(void);
void __sigev_list_unlock(void);
void __sigev_free(struct sigev_node *);
#endif