2 * Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu
3 * Copyright (c) 1995-1998 by John Birrell <jb@cimlogic.com.au>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following 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 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Chris Provenzano.
17 * 4. The name of Chris Provenzano may not be used to endorse or promote
18 * products derived from this software without specific prior written
21 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #include <sys/cdefs.h>
42 #include <sys/_pthreadtypes.h>
43 #include <machine/_limits.h>
44 #include <machine/_types.h>
45 #include <sys/_sigset.h>
50 * Run-time invariant values:
52 #define PTHREAD_DESTRUCTOR_ITERATIONS 4
53 #define PTHREAD_KEYS_MAX 256
54 #define PTHREAD_STACK_MIN __MINSIGSTKSZ
55 #define PTHREAD_THREADS_MAX __ULONG_MAX
56 #define PTHREAD_BARRIER_SERIAL_THREAD -1
59 * Flags for threads and thread attributes.
61 #define PTHREAD_DETACHED 0x1
62 #define PTHREAD_SCOPE_SYSTEM 0x2
63 #define PTHREAD_INHERIT_SCHED 0x4
64 #define PTHREAD_NOFLOAT 0x8
66 #define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED
67 #define PTHREAD_CREATE_JOINABLE 0
68 #define PTHREAD_SCOPE_PROCESS 0
69 #define PTHREAD_EXPLICIT_SCHED 0
72 * Values for process shared/private attributes.
74 #define PTHREAD_PROCESS_PRIVATE 0
75 #define PTHREAD_PROCESS_SHARED 1
78 * Flags for cancelling threads
80 #define PTHREAD_CANCEL_ENABLE 0
81 #define PTHREAD_CANCEL_DISABLE 1
82 #define PTHREAD_CANCEL_DEFERRED 0
83 #define PTHREAD_CANCEL_ASYNCHRONOUS 2
84 #define PTHREAD_CANCELED ((void *) 1)
87 * Flags for once initialization.
89 #define PTHREAD_NEEDS_INIT 0
90 #define PTHREAD_DONE_INIT 1
93 * Static once initialization values.
95 #define PTHREAD_ONCE_INIT { PTHREAD_NEEDS_INIT, NULL }
98 * Static initialization values.
100 #define PTHREAD_MUTEX_INITIALIZER NULL
101 #define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP ((pthread_mutex_t)1)
102 #define PTHREAD_COND_INITIALIZER NULL
103 #define PTHREAD_RWLOCK_INITIALIZER NULL
106 * Default attribute arguments (draft 4, deprecated).
108 #ifndef PTHREAD_KERNEL
109 #define pthread_condattr_default NULL
110 #define pthread_mutexattr_default NULL
111 #define pthread_attr_default NULL
114 #define PTHREAD_PRIO_NONE 0
115 #define PTHREAD_PRIO_INHERIT 1
116 #define PTHREAD_PRIO_PROTECT 2
119 * Mutex types (Single UNIX Specification, Version 2, 1997).
121 * Note that a mutex attribute with one of the following types:
123 * PTHREAD_MUTEX_NORMAL
124 * PTHREAD_MUTEX_RECURSIVE
126 * will deviate from POSIX specified semantics.
128 enum pthread_mutextype {
129 PTHREAD_MUTEX_ERRORCHECK = 1, /* Default POSIX mutex */
130 PTHREAD_MUTEX_RECURSIVE = 2, /* Recursive mutex */
131 PTHREAD_MUTEX_NORMAL = 3, /* No error checking */
132 PTHREAD_MUTEX_ADAPTIVE_NP = 4, /* Adaptive mutex, spins briefly before blocking on lock */
133 PTHREAD_MUTEX_TYPE_MAX
136 #define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK
138 #define PTHREAD_MUTEX_STALLED 0
139 #define PTHREAD_MUTEX_ROBUST 1
141 struct _pthread_cleanup_info {
142 __uintptr_t pthread_cleanup_pad[8];
146 * Thread function prototype definitions:
149 int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
150 int pthread_attr_destroy(pthread_attr_t *) __nonnull(1);
151 int pthread_attr_getstack(const pthread_attr_t * __restrict,
152 void ** __restrict, size_t * __restrict)
154 int pthread_attr_getstacksize(const pthread_attr_t *, size_t *)
156 int pthread_attr_getguardsize(const pthread_attr_t *, size_t *);
157 int pthread_attr_getstackaddr(const pthread_attr_t *, void **);
158 int pthread_attr_getdetachstate(const pthread_attr_t *, int *)
160 int pthread_attr_init(pthread_attr_t *) __nonnull(1);
161 int pthread_attr_setstacksize(pthread_attr_t *, size_t)
163 int pthread_attr_setguardsize(pthread_attr_t *, size_t)
165 int pthread_attr_setstack(pthread_attr_t *, void *, size_t)
167 int pthread_attr_setstackaddr(pthread_attr_t *, void *);
168 int pthread_attr_setdetachstate(pthread_attr_t *, int) __nonnull(1);
169 int pthread_barrier_destroy(pthread_barrier_t *);
170 int pthread_barrier_init(pthread_barrier_t *,
171 const pthread_barrierattr_t *, unsigned);
172 int pthread_barrier_wait(pthread_barrier_t *);
173 int pthread_barrierattr_destroy(pthread_barrierattr_t *);
174 int pthread_barrierattr_getpshared(const pthread_barrierattr_t *,
176 int pthread_barrierattr_init(pthread_barrierattr_t *) __nonnull(1);
177 int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
179 #define pthread_cleanup_push(cleanup_routine, cleanup_arg) \
181 struct _pthread_cleanup_info __cleanup_info__; \
182 __pthread_cleanup_push_imp(cleanup_routine, cleanup_arg,\
183 &__cleanup_info__); \
186 #define pthread_cleanup_pop(execute) \
189 __pthread_cleanup_pop_imp(execute); \
192 int pthread_condattr_destroy(pthread_condattr_t *) __nonnull(1);
193 int pthread_condattr_getclock(const pthread_condattr_t *,
194 clockid_t *) __nonnull_all;
195 int pthread_condattr_getpshared(const pthread_condattr_t *, int *)
197 int pthread_condattr_init(pthread_condattr_t *) __nonnull(1);
198 int pthread_condattr_setclock(pthread_condattr_t *, clockid_t)
200 int pthread_condattr_setpshared(pthread_condattr_t *, int)
202 int pthread_cond_broadcast(pthread_cond_t *)
204 int pthread_cond_destroy(pthread_cond_t *)
206 int pthread_cond_init(pthread_cond_t *,
207 const pthread_condattr_t *) __nonnull(1);
208 int pthread_cond_signal(pthread_cond_t *) __nonnull(1);
209 int pthread_cond_timedwait(pthread_cond_t *,
210 pthread_mutex_t *__mutex, const struct timespec *)
211 __nonnull_all __requires_exclusive(*__mutex);
212 int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *__mutex)
213 __nonnull_all __requires_exclusive(*__mutex);
214 int pthread_create(pthread_t *, const pthread_attr_t *,
215 void *(*) (void *), void *) __nonnull(1) __nonnull(3);
216 int pthread_detach(pthread_t);
217 int pthread_equal(pthread_t, pthread_t);
218 void pthread_exit(void *) __dead2;
219 void *pthread_getspecific(pthread_key_t);
220 int pthread_getcpuclockid(pthread_t, clockid_t *) __nonnull(2);
221 int pthread_join(pthread_t, void **);
222 int pthread_key_create(pthread_key_t *,
223 void (*) (void *)) __nonnull(1);
224 int pthread_key_delete(pthread_key_t);
225 int pthread_mutexattr_init(pthread_mutexattr_t *) __nonnull(1);
226 int pthread_mutexattr_destroy(pthread_mutexattr_t *) __nonnull(1);
227 int pthread_mutexattr_getpshared(const pthread_mutexattr_t *,
228 int *) __nonnull_all;
229 int pthread_mutexattr_gettype(pthread_mutexattr_t *, int *)
231 int pthread_mutexattr_settype(pthread_mutexattr_t *, int)
233 int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int)
235 int pthread_mutex_consistent(pthread_mutex_t *__mutex)
236 __nonnull(1) __requires_exclusive(*__mutex);
237 int pthread_mutex_destroy(pthread_mutex_t *__mutex)
238 __nonnull(1) __requires_unlocked(*__mutex);
239 int pthread_mutex_init(pthread_mutex_t *__mutex,
240 const pthread_mutexattr_t *)
241 __nonnull(1) __requires_unlocked(*__mutex);
242 int pthread_mutex_lock(pthread_mutex_t *__mutex)
243 __nonnull(1) __locks_exclusive(*__mutex);
244 int pthread_mutex_trylock(pthread_mutex_t *__mutex)
245 __nonnull(1) __trylocks_exclusive(0, *__mutex);
246 int pthread_mutex_timedlock(pthread_mutex_t *__mutex,
247 const struct timespec *)
248 __nonnull_all __trylocks_exclusive(0, *__mutex);
249 int pthread_mutex_unlock(pthread_mutex_t *__mutex)
250 __nonnull(1) __unlocks(*__mutex);
251 int pthread_once(pthread_once_t *, void (*) (void)) __nonnull_all;
252 int pthread_rwlock_destroy(pthread_rwlock_t *__rwlock)
253 __nonnull(1) __requires_unlocked(*__rwlock);
254 int pthread_rwlock_init(pthread_rwlock_t *__rwlock,
255 const pthread_rwlockattr_t *)
256 __nonnull(1) __requires_unlocked(*__rwlock);
257 int pthread_rwlock_rdlock(pthread_rwlock_t *__rwlock)
258 __nonnull(1) __locks_shared(*__rwlock);
259 int pthread_rwlock_timedrdlock(pthread_rwlock_t *__rwlock,
260 const struct timespec *)
261 __nonnull_all __trylocks_shared(0, *__rwlock);
262 int pthread_rwlock_timedwrlock(pthread_rwlock_t *__rwlock,
263 const struct timespec *)
264 __nonnull_all __trylocks_exclusive(0, *__rwlock);
265 int pthread_rwlock_tryrdlock(pthread_rwlock_t *__rwlock)
266 __nonnull(1) __trylocks_shared(0, *__rwlock);
267 int pthread_rwlock_trywrlock(pthread_rwlock_t *__rwlock)
268 __nonnull(1) __trylocks_exclusive(0, *__rwlock);
269 int pthread_rwlock_unlock(pthread_rwlock_t *__rwlock)
270 __nonnull(1) __unlocks(*__rwlock);
271 int pthread_rwlock_wrlock(pthread_rwlock_t *__rwlock)
272 __nonnull(1) __locks_exclusive(*__rwlock);
273 int pthread_rwlockattr_destroy(pthread_rwlockattr_t *)
275 int pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t *,
277 int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *,
278 int *) __nonnull_all;
279 int pthread_rwlockattr_init(pthread_rwlockattr_t *)
281 int pthread_rwlockattr_setkind_np(pthread_rwlockattr_t *, int);
282 int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int)
284 pthread_t pthread_self(void);
285 int pthread_setspecific(pthread_key_t, const void *);
287 int pthread_spin_init(pthread_spinlock_t *__spin, int)
288 __requires_unlocked(*__spin);
289 int pthread_spin_destroy(pthread_spinlock_t *__spin)
290 __requires_unlocked(*__spin);
291 int pthread_spin_lock(pthread_spinlock_t *__spin)
292 __locks_exclusive(*__spin);
293 int pthread_spin_trylock(pthread_spinlock_t *__spin)
294 __trylocks_exclusive(0, *__spin);
295 int pthread_spin_unlock(pthread_spinlock_t *__spin)
297 int pthread_cancel(pthread_t);
298 int pthread_setcancelstate(int, int *);
299 int pthread_setcanceltype(int, int *);
300 void pthread_testcancel(void);
303 int pthread_getprio(pthread_t);
304 int pthread_setprio(pthread_t, int);
305 void pthread_yield(void);
308 int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *,
310 int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *,
312 int pthread_mutex_getprioceiling(pthread_mutex_t *, int *);
313 int pthread_mutex_setprioceiling(pthread_mutex_t *, int, int *);
315 int pthread_mutexattr_getprotocol(pthread_mutexattr_t *, int *);
316 int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
318 int pthread_mutexattr_getrobust(pthread_mutexattr_t *__restrict,
319 int *__restrict) __nonnull_all;
320 int pthread_mutexattr_setrobust(pthread_mutexattr_t *, int)
323 int pthread_attr_getinheritsched(const pthread_attr_t *, int *);
324 int pthread_attr_getschedparam(const pthread_attr_t *,
325 struct sched_param *) __nonnull_all;
326 int pthread_attr_getschedpolicy(const pthread_attr_t *, int *)
328 int pthread_attr_getscope(const pthread_attr_t *, int *)
330 int pthread_attr_setinheritsched(pthread_attr_t *, int);
331 int pthread_attr_setschedparam(pthread_attr_t *,
332 const struct sched_param *) __nonnull(1) __nonnull(2);
333 int pthread_attr_setschedpolicy(pthread_attr_t *, int) __nonnull(1);
334 int pthread_attr_setscope(pthread_attr_t *, int) __nonnull(1);
335 int pthread_getschedparam(pthread_t pthread, int *,
336 struct sched_param *) __nonnull(2) __nonnull(3);
337 int pthread_setschedparam(pthread_t, int,
338 const struct sched_param *) __nonnull(3);
340 int pthread_getconcurrency(void);
341 int pthread_setconcurrency(int);
344 void __pthread_cleanup_push_imp(void (*)(void *), void *,
345 struct _pthread_cleanup_info *);
346 void __pthread_cleanup_pop_imp(int);