xref: /illumos-gate/usr/src/head/threads.h (revision fc2512cfb727d49529d8ed99164db871f4829b73)
1 /*
2  * This file and its contents are supplied under the terms of the
3  * Common Development and Distribution License ("CDDL"), version 1.0.
4  * You may only use this file in accordance with the terms of version
5  * 1.0 of the CDDL.
6  *
7  * A full copy of the text of the CDDL should have accompanied this
8  * source.  A copy of the CDDL is also available via the Internet at
9  * http://www.illumos.org/license/CDDL.
10  */
11 
12 /*
13  * Copyright 2016 Joyent, Inc.
14  */
15 
16 #ifndef _THREADS_H
17 #define	_THREADS_H
18 
19 /*
20  * ISO/IEC C11 threads.h support
21  */
22 
23 #include <sys/feature_tests.h>
24 
25 #include <sys/types.h>
26 #include <limits.h>
27 #include <time.h>
28 #include <pthread.h>
29 
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33 
34 #if !defined(_STRICT_SYMBOLS) || defined(_STDC_C11)
35 
36 #if !defined(_NORETURN_KYWD)
37 #if __STDC_VERSION__ - 0 >= 201112L
38 #define	_NORETURN_KYWD	_Noreturn
39 #else
40 #define	_NORETURN_KYWD
41 #endif	/* __STDC_VERSION__ - 0 >= 201112L */
42 #endif	/* !defined(_NORETURN_KYWD) */
43 
44 #define	thread_local	_Thread_local
45 #define	ONCE_FLAG_INIT	PTHREAD_ONCE_INIT
46 #define	TSS_DTOR_ITERATIONS	PTHREAD_DESTRUCTOR_ITERATIONS
47 
48 typedef	pthread_cond_t cnd_t;
49 typedef	pthread_t thrd_t;
50 typedef	pthread_key_t tss_t;
51 typedef	pthread_mutex_t mtx_t;
52 typedef	void (*tss_dtor_t)(void *);
53 typedef int (*thrd_start_t)(void *);
54 typedef	pthread_once_t once_flag;
55 
56 enum {
57 	mtx_plain = 0x1,
58 	mtx_recursive = 0x2,
59 	mtx_timed = 0x4
60 };
61 
62 enum {
63 	thrd_success = 0,
64 	thrd_error = 1,
65 	thrd_busy = 2,
66 	thrd_timedout = 3,
67 	thrd_nomem = 4
68 };
69 
70 extern void call_once(once_flag *, void (*)(void));
71 extern int cnd_broadcast(cnd_t *);
72 extern void cnd_destroy(cnd_t *);
73 extern int cnd_init(cnd_t *);
74 extern int cnd_signal(cnd_t *);
75 extern int cnd_timedwait(cnd_t *_RESTRICT_KYWD, mtx_t *_RESTRICT_KYWD,
76     const struct timespec *_RESTRICT_KYWD);
77 extern int cnd_wait(cnd_t *, mtx_t *);
78 extern void mtx_destroy(mtx_t *);
79 extern int mtx_init(mtx_t *, int);
80 extern int mtx_lock(mtx_t *);
81 extern int mtx_timedlock(mtx_t *_RESTRICT_KYWD,
82     const struct timespec *_RESTRICT_KYWD);
83 extern int mtx_trylock(mtx_t *);
84 extern int mtx_unlock(mtx_t *);
85 extern int thrd_create(thrd_t *, thrd_start_t, void *);
86 extern thrd_t thrd_current(void);
87 extern int thrd_detach(thrd_t);
88 extern int thrd_equal(thrd_t, thrd_t);
89 extern _NORETURN_KYWD void thrd_exit(int) __NORETURN;
90 extern int thrd_join(thrd_t, int *);
91 extern int thrd_sleep(const struct timespec *, struct timespec *);
92 extern void thrd_yield(void);
93 extern int tss_create(tss_t *, tss_dtor_t);
94 extern void tss_delete(tss_t);
95 extern void *tss_get(tss_t);
96 extern int tss_set(tss_t, void *);
97 
98 #endif /* !_STRICT_SYMBOLS | _STDC_C11 */
99 
100 #ifdef __cplusplus
101 }
102 #endif
103 
104 #endif /* _THREADS_H */
105