2 * Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Craig Rodrigues.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY CRAIG RODRIGUES AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
36 * Copyright (C) 2001 Jason Evans <jasone@freebsd.org>.
37 * Copyright (c) 2002,2003 Alexey Zelkin <phantom@FreeBSD.org>
38 * All rights reserved.
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
43 * 1. Redistributions of source code must retain the above copyright
44 * notice(s), this list of conditions and the following disclaimer
45 * unmodified other than the allowable addition of one or more
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice(s), this list of conditions and the following disclaimer in
49 * the documentation and/or other materials provided with the
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
53 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
55 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
56 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
57 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
58 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
59 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
60 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
61 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
62 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66 * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
67 * All rights reserved.
69 * Redistribution and use in source and binary forms, with or without
70 * modification, are permitted provided that the following conditions
72 * 1. Redistributions of source code must retain the above copyright
73 * notice, this list of conditions and the following disclaimer.
74 * 2. Redistributions in binary form must reproduce the above copyright
75 * notice, this list of conditions and the following disclaimer in the
76 * documentation and/or other materials provided with the distribution.
77 * 3. All advertising materials mentioning features or use of this software
78 * must display the following acknowledgement:
79 * This product includes software developed by John Birrell.
80 * 4. Neither the name of the author nor the names of any co-contributors
81 * may be used to endorse or promote products derived from this software
82 * without specific prior written permission.
84 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
85 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
86 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
87 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
88 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
89 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
90 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
91 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
92 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
93 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
96 * $DragonFly: src/lib/libthread_xu/thread/thr_attr.c,v 1.3 2005/03/29 19:26:20 joerg Exp $
99 #include <machine/tls.h>
105 #include <pthread_np.h>
107 #include "thr_private.h"
109 __weak_reference(_pthread_attr_destroy, pthread_attr_destroy);
112 _pthread_attr_destroy(pthread_attr_t *attr)
116 /* Check for invalid arguments: */
117 if (attr == NULL || *attr == NULL)
118 /* Invalid argument: */
121 /* Free the memory allocated to the attribute object: */
125 * Leave the attribute pointer NULL now that the memory
134 __weak_reference(_pthread_attr_get_np, pthread_attr_get_np);
137 _pthread_attr_get_np(pthread_t pid, pthread_attr_t *dst)
139 struct pthread *curthread;
140 struct pthread_attr attr;
143 if (pid == NULL || dst == NULL || *dst == NULL)
146 curthread = tls_get_curthread();
147 if ((ret = _thr_ref_add(curthread, pid, /*include dead*/0)) != 0)
150 _thr_ref_delete(curthread, pid);
151 memcpy(*dst, &attr, sizeof(struct pthread_attr));
156 __weak_reference(_pthread_attr_getdetachstate, pthread_attr_getdetachstate);
159 _pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
163 /* Check for invalid arguments: */
164 if (attr == NULL || *attr == NULL || detachstate == NULL)
167 /* Check if the detached flag is set: */
168 if ((*attr)->flags & PTHREAD_DETACHED)
169 /* Return detached: */
170 *detachstate = PTHREAD_CREATE_DETACHED;
172 /* Return joinable: */
173 *detachstate = PTHREAD_CREATE_JOINABLE;
179 __weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize);
182 _pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize)
186 /* Check for invalid arguments: */
187 if (attr == NULL || *attr == NULL || guardsize == NULL)
190 /* Return the guard size: */
191 *guardsize = (*attr)->guardsize_attr;
197 __weak_reference(_pthread_attr_getinheritsched, pthread_attr_getinheritsched);
200 _pthread_attr_getinheritsched(const pthread_attr_t *attr, int *sched_inherit)
204 if ((attr == NULL) || (*attr == NULL))
207 *sched_inherit = (*attr)->sched_inherit;
212 __weak_reference(_pthread_attr_getschedparam, pthread_attr_getschedparam);
215 _pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param)
219 if ((attr == NULL) || (*attr == NULL) || (param == NULL))
222 param->sched_priority = (*attr)->prio;
227 __weak_reference(_pthread_attr_getschedpolicy, pthread_attr_getschedpolicy);
230 _pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
234 if ((attr == NULL) || (*attr == NULL) || (policy == NULL))
237 *policy = (*attr)->sched_policy;
242 __weak_reference(_pthread_attr_getscope, pthread_attr_getscope);
245 _pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope)
249 if ((attr == NULL) || (*attr == NULL) || (contentionscope == NULL))
250 /* Return an invalid argument: */
254 *contentionscope = (*attr)->flags & PTHREAD_SCOPE_SYSTEM ?
255 PTHREAD_SCOPE_SYSTEM : PTHREAD_SCOPE_PROCESS;
260 __weak_reference(_pthread_attr_getstack, pthread_attr_getstack);
263 _pthread_attr_getstack(const pthread_attr_t * __restrict attr,
264 void ** __restrict stackaddr,
265 size_t * __restrict stacksize)
269 /* Check for invalid arguments: */
270 if (attr == NULL || *attr == NULL || stackaddr == NULL
271 || stacksize == NULL )
274 /* Return the stack address and size */
275 *stackaddr = (*attr)->stackaddr_attr;
276 *stacksize = (*attr)->stacksize_attr;
282 __weak_reference(_pthread_attr_getstackaddr, pthread_attr_getstackaddr);
285 _pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr)
289 /* Check for invalid arguments: */
290 if (attr == NULL || *attr == NULL || stackaddr == NULL)
293 /* Return the stack address: */
294 *stackaddr = (*attr)->stackaddr_attr;
300 __weak_reference(_pthread_attr_getstacksize, pthread_attr_getstacksize);
303 _pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
307 /* Check for invalid arguments: */
308 if (attr == NULL || *attr == NULL || stacksize == NULL)
311 /* Return the stack size: */
312 *stacksize = (*attr)->stacksize_attr;
318 __weak_reference(_pthread_attr_init, pthread_attr_init);
321 _pthread_attr_init(pthread_attr_t *attr)
324 pthread_attr_t pattr;
328 /* Allocate memory for the attribute object: */
329 if ((pattr = (pthread_attr_t) malloc(sizeof(struct pthread_attr))) == NULL)
330 /* Insufficient memory: */
333 /* Initialise the attribute object with the defaults: */
334 memcpy(pattr, &_pthread_attr_default,
335 sizeof(struct pthread_attr));
337 /* Return a pointer to the attribute object: */
344 __weak_reference(_pthread_attr_setcreatesuspend_np, pthread_attr_setcreatesuspend_np);
347 _pthread_attr_setcreatesuspend_np(pthread_attr_t *attr)
351 if (attr == NULL || *attr == NULL) {
354 (*attr)->suspend = THR_CREATE_SUSPENDED;
360 __weak_reference(_pthread_attr_setdetachstate, pthread_attr_setdetachstate);
363 _pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
367 /* Check for invalid arguments: */
368 if (attr == NULL || *attr == NULL ||
369 (detachstate != PTHREAD_CREATE_DETACHED &&
370 detachstate != PTHREAD_CREATE_JOINABLE))
373 /* Check if detached state: */
374 if (detachstate == PTHREAD_CREATE_DETACHED)
375 /* Set the detached flag: */
376 (*attr)->flags |= PTHREAD_DETACHED;
378 /* Reset the detached flag: */
379 (*attr)->flags &= ~PTHREAD_DETACHED;
385 __weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize);
388 _pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
392 /* Check for invalid arguments. */
393 if (attr == NULL || *attr == NULL)
396 /* Save the stack size. */
397 (*attr)->guardsize_attr = guardsize;
403 __weak_reference(_pthread_attr_setinheritsched, pthread_attr_setinheritsched);
406 _pthread_attr_setinheritsched(pthread_attr_t *attr, int sched_inherit)
410 if ((attr == NULL) || (*attr == NULL))
412 else if (sched_inherit != PTHREAD_INHERIT_SCHED &&
413 sched_inherit != PTHREAD_EXPLICIT_SCHED)
416 (*attr)->sched_inherit = sched_inherit;
421 __weak_reference(_pthread_attr_setschedparam, pthread_attr_setschedparam);
424 _pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param)
428 if ((attr == NULL) || (*attr == NULL))
430 else if (param == NULL) {
432 } else if ((param->sched_priority < THR_MIN_PRIORITY) ||
433 (param->sched_priority > THR_MAX_PRIORITY)) {
434 /* Return an unsupported value error. */
437 (*attr)->prio = param->sched_priority;
442 __weak_reference(_pthread_attr_setschedpolicy, pthread_attr_setschedpolicy);
445 _pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
449 if ((attr == NULL) || (*attr == NULL))
451 else if ((policy < SCHED_FIFO) || (policy > SCHED_RR)) {
454 (*attr)->sched_policy = policy;
459 __weak_reference(_pthread_attr_setscope, pthread_attr_setscope);
462 _pthread_attr_setscope(pthread_attr_t *attr, int contentionscope)
466 if ((attr == NULL) || (*attr == NULL)) {
467 /* Return an invalid argument: */
469 } else if ((contentionscope != PTHREAD_SCOPE_PROCESS) &&
470 (contentionscope != PTHREAD_SCOPE_SYSTEM)) {
472 } else if (contentionscope == PTHREAD_SCOPE_SYSTEM) {
473 (*attr)->flags |= contentionscope;
475 (*attr)->flags &= ~PTHREAD_SCOPE_SYSTEM;
480 __weak_reference(_pthread_attr_setstack, pthread_attr_setstack);
483 _pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr,
488 /* Check for invalid arguments: */
489 if (attr == NULL || *attr == NULL || stackaddr == NULL
490 || stacksize < PTHREAD_STACK_MIN)
493 /* Save the stack address and stack size */
494 (*attr)->stackaddr_attr = stackaddr;
495 (*attr)->stacksize_attr = stacksize;
501 __weak_reference(_pthread_attr_setstackaddr, pthread_attr_setstackaddr);
504 _pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr)
508 /* Check for invalid arguments: */
509 if (attr == NULL || *attr == NULL || stackaddr == NULL)
512 /* Save the stack address: */
513 (*attr)->stackaddr_attr = stackaddr;
519 __weak_reference(_pthread_attr_setstacksize, pthread_attr_setstacksize);
522 _pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
526 /* Check for invalid arguments: */
527 if (attr == NULL || *attr == NULL || stacksize < PTHREAD_STACK_MIN)
530 /* Save the stack size: */
531 (*attr)->stacksize_attr = stacksize;