xref: /illumos-gate/usr/src/head/thread.h (revision 4c28a617e3922d92a58e813a5b955eb526b9c386)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
24  *
25  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms.
27  */
28 
29 #ifndef	_THREAD_H
30 #define	_THREAD_H
31 
32 /*
33  * thread.h:
34  * definitions needed to use the thread interface except synchronization.
35  * use <synch.h> for thread synchronization.
36  */
37 
38 #ifndef _ASM
39 #include <sys/signal.h>
40 #include <sys/time.h>
41 #include <synch.h>
42 #endif	/* _ASM */
43 
44 #ifdef __cplusplus
45 extern "C" {
46 #endif
47 
48 #ifndef _ASM
49 typedef unsigned int thread_t;
50 typedef unsigned int thread_key_t;
51 
52 extern int thr_create(void *, size_t, void *(*)(void *), void *, long,
53 			thread_t *);
54 extern int thr_join(thread_t, thread_t *, void **);
55 extern int thr_setconcurrency(int);
56 extern int thr_getconcurrency(void);
57 extern void thr_exit(void *) __NORETURN;
58 extern thread_t thr_self(void);
59 
60 /*
61  * the definition of thr_sigsetmask() is not strict ansi-c since sigset_t is
62  * not in the strict ansi-c name space. Hence, include the prototype for
63  * thr_sigsetmask() only if strict ansi-c conformance is not turned on.
64  */
65 #if !defined(_STRICT_STDC) || defined(__EXTENSIONS__)
66 extern int thr_sigsetmask(int, const sigset_t *, sigset_t *);
67 #endif
68 
69 /*
70  * the definition of thr_stksegment() is not strict ansi-c since stack_t is
71  * not in the strict ansi-c name space. Hence, include the prototype for
72  * thr_stksegment() only if strict ansi-c conformance is not turned on.
73  */
74 #if !defined(_STRICT_STDC) || defined(__EXTENSIONS__)
75 extern int thr_stksegment(stack_t *);
76 #endif
77 
78 extern int thr_main(void);
79 extern int thr_kill(thread_t, int);
80 extern int thr_suspend(thread_t);
81 extern int thr_continue(thread_t);
82 extern void thr_yield(void);
83 extern int thr_setprio(thread_t, int);
84 extern int thr_getprio(thread_t, int *);
85 extern int thr_keycreate(thread_key_t *, void(*)(void *));
86 extern int thr_keycreate_once(thread_key_t *, void(*)(void *));
87 extern int thr_setspecific(thread_key_t, void *);
88 extern int thr_getspecific(thread_key_t, void **);
89 extern size_t thr_min_stack(void);
90 
91 #endif /* _ASM */
92 
93 #define	THR_MIN_STACK	thr_min_stack()
94 /*
95  * thread flags (one word bit mask)
96  */
97 /*
98  * POSIX.1c Note:
99  * THR_BOUND is defined same as PTHREAD_SCOPE_SYSTEM in <pthread.h>
100  * THR_DETACHED is defined same as PTHREAD_CREATE_DETACHED in <pthread.h>
101  * Any changes in these definitions should be reflected in <pthread.h>
102  */
103 #define	THR_BOUND		0x00000001	/* = PTHREAD_SCOPE_SYSTEM */
104 #define	THR_NEW_LWP		0x00000002
105 #define	THR_DETACHED		0x00000040	/* = PTHREAD_CREATE_DETACHED */
106 #define	THR_SUSPENDED		0x00000080
107 #define	THR_DAEMON		0x00000100
108 
109 /*
110  * The key to be created by thr_keycreate_once()
111  * must be statically initialized with THR_ONCE_KEY.
112  * This must be the same as PTHREAD_ONCE_KEY_NP in <pthread.h>
113  */
114 #define	THR_ONCE_KEY	(thread_key_t)(-1)
115 
116 /*
117  * The available register states returned by thr_getstate().
118  */
119 #define	TRS_VALID	0
120 #define	TRS_NONVOLATILE	1
121 #define	TRS_LWPID	2
122 #define	TRS_INVALID	3
123 
124 #ifdef __cplusplus
125 }
126 #endif
127 
128 #endif	/* _THREAD_H */
129