xref: /freebsd/sys/sys/thr.h (revision 39beb93c)
1 /*-
2  * Copyright (c) 2003, Jeffrey Roberson <jeff@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 _SYS_THR_H_
31 #define	_SYS_THR_H_
32 
33 #include <sys/_types.h>
34 #include <sys/sched.h>
35 
36 #ifndef _SIZE_T_DECLARED
37 typedef __size_t	size_t;
38 #define _SIZE_T_DECLARED
39 #endif
40 
41 /* Create the thread in the suspended state. */
42 #define	THR_SUSPENDED		0x0001
43 /* Create the system scope thread. */
44 #define	THR_SYSTEM_SCOPE	0x0002
45 
46 struct thr_param {
47     void	(*start_func)(void *);	/* thread entry function. */
48     void	*arg;			/* argument for entry function. */
49     char	*stack_base;		/* stack base address. */
50     size_t	stack_size;		/* stack size. */
51     char	*tls_base;		/* tls base address. */
52     size_t	tls_size;		/* tls size. */
53     long	*child_tid;		/* address to store new TID. */
54     long	*parent_tid;		/* parent accesses the new TID here. */
55     int		flags;			/* thread flags. */
56     struct rtprio	*rtp;		/* Real-time scheduling priority */
57     void	*spare[3];		/* TODO: cpu affinity mask etc. */
58 };
59 
60 /*
61  * See pthread_*
62  */
63 #ifndef _KERNEL
64 #include <sys/ucontext.h>
65 
66 #ifndef _PID_T_DECLARED
67 typedef __pid_t		pid_t;
68 #define _PID_T_DECLARED
69 #endif
70 
71 int thr_create(ucontext_t *ctx, long *id, int flags);
72 int thr_new(struct thr_param *param, int param_size);
73 int thr_self(long *id);
74 void thr_exit(long *state);
75 int thr_kill(long id, int sig);
76 int thr_kill2(pid_t pid, long id, int sig);
77 int thr_suspend(const struct timespec *timeout);
78 int thr_wake(long id);
79 int thr_set_name(long id, const char *name);
80 
81 #endif /* !_KERNEL */
82 
83 #endif /* ! _SYS_THR_H_ */
84