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. Neither the name of the author nor the names of any co-contributors
78 * may be used to endorse or promote products derived from this software
79 * without specific prior written permission.
81 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
82 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
83 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
84 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
85 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
86 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
87 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
88 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
89 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
90 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
96 #include "namespace.h"
101 #include <pthread_np.h>
102 #include <sys/sysctl.h>
103 #include "un-namespace.h"
105 #include "thr_private.h"
107 __weak_reference(_pthread_attr_destroy, pthread_attr_destroy);
110 _pthread_attr_destroy(pthread_attr_t *attr)
114 /* Check for invalid arguments: */
115 if (attr == NULL || *attr == NULL)
116 /* Invalid argument: */
119 /* Free the memory allocated to the attribute object: */
123 * Leave the attribute pointer NULL now that the memory
132 __weak_reference(_pthread_attr_get_np, pthread_attr_get_np);
135 _pthread_attr_get_np(pthread_t pid, pthread_attr_t *dst)
137 struct pthread *curthread;
138 struct pthread_attr attr;
141 if (pid == NULL || dst == NULL || *dst == NULL)
144 curthread = _get_curthread();
145 if ((ret = _thr_ref_add(curthread, pid, /*include dead*/0)) != 0)
148 if (pid->tlflags & TLFLAGS_DETACHED)
149 attr.flags |= PTHREAD_DETACHED;
150 _thr_ref_delete(curthread, pid);
151 memcpy(*dst, &attr, sizeof(struct pthread_attr));
153 (*dst)->cpuset = NULL;
154 (*dst)->cpusetsize = 0;
158 __weak_reference(_pthread_attr_getdetachstate, pthread_attr_getdetachstate);
161 _pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
165 /* Check for invalid arguments: */
166 if (attr == NULL || *attr == NULL || detachstate == NULL)
169 /* Check if the detached flag is set: */
170 if ((*attr)->flags & PTHREAD_DETACHED)
171 /* Return detached: */
172 *detachstate = PTHREAD_CREATE_DETACHED;
174 /* Return joinable: */
175 *detachstate = PTHREAD_CREATE_JOINABLE;
181 __weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize);
184 _pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize)
188 /* Check for invalid arguments: */
189 if (attr == NULL || *attr == NULL || guardsize == NULL)
192 /* Return the guard size: */
193 *guardsize = (*attr)->guardsize_attr;
199 __weak_reference(_pthread_attr_getinheritsched, pthread_attr_getinheritsched);
202 _pthread_attr_getinheritsched(const pthread_attr_t *attr, int *sched_inherit)
206 if ((attr == NULL) || (*attr == NULL))
209 *sched_inherit = (*attr)->sched_inherit;
214 __weak_reference(_pthread_attr_getschedparam, pthread_attr_getschedparam);
217 _pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param)
221 if ((attr == NULL) || (*attr == NULL) || (param == NULL))
224 param->sched_priority = (*attr)->prio;
229 __weak_reference(_pthread_attr_getschedpolicy, pthread_attr_getschedpolicy);
232 _pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
236 if ((attr == NULL) || (*attr == NULL) || (policy == NULL))
239 *policy = (*attr)->sched_policy;
244 __weak_reference(_pthread_attr_getscope, pthread_attr_getscope);
247 _pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope)
251 if ((attr == NULL) || (*attr == NULL) || (contentionscope == NULL))
252 /* Return an invalid argument: */
256 *contentionscope = (*attr)->flags & PTHREAD_SCOPE_SYSTEM ?
257 PTHREAD_SCOPE_SYSTEM : PTHREAD_SCOPE_PROCESS;
262 __weak_reference(_pthread_attr_getstack, pthread_attr_getstack);
265 _pthread_attr_getstack(const pthread_attr_t * __restrict attr,
266 void ** __restrict stackaddr,
267 size_t * __restrict stacksize)
271 /* Check for invalid arguments: */
272 if (attr == NULL || *attr == NULL || stackaddr == NULL
273 || stacksize == NULL )
276 /* Return the stack address and size */
277 *stackaddr = (*attr)->stackaddr_attr;
278 *stacksize = (*attr)->stacksize_attr;
284 __weak_reference(_pthread_attr_getstackaddr, pthread_attr_getstackaddr);
287 _pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr)
291 /* Check for invalid arguments: */
292 if (attr == NULL || *attr == NULL || stackaddr == NULL)
295 /* Return the stack address: */
296 *stackaddr = (*attr)->stackaddr_attr;
302 __weak_reference(_pthread_attr_getstacksize, pthread_attr_getstacksize);
305 _pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
309 /* Check for invalid arguments: */
310 if (attr == NULL || *attr == NULL || stacksize == NULL)
313 /* Return the stack size: */
314 *stacksize = (*attr)->stacksize_attr;
320 __weak_reference(_pthread_attr_init, pthread_attr_init);
323 _pthread_attr_init(pthread_attr_t *attr)
326 pthread_attr_t pattr;
330 /* Allocate memory for the attribute object: */
331 if ((pattr = (pthread_attr_t) malloc(sizeof(struct pthread_attr))) == NULL)
332 /* Insufficient memory: */
335 /* Initialise the attribute object with the defaults: */
336 memcpy(pattr, &_pthread_attr_default, sizeof(struct pthread_attr));
338 /* Return a pointer to the attribute object: */
345 __weak_reference(_pthread_attr_setcreatesuspend_np, pthread_attr_setcreatesuspend_np);
348 _pthread_attr_setcreatesuspend_np(pthread_attr_t *attr)
352 if (attr == NULL || *attr == NULL) {
355 (*attr)->suspend = THR_CREATE_SUSPENDED;
361 __weak_reference(_pthread_attr_setdetachstate, pthread_attr_setdetachstate);
364 _pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
368 /* Check for invalid arguments: */
369 if (attr == NULL || *attr == NULL ||
370 (detachstate != PTHREAD_CREATE_DETACHED &&
371 detachstate != PTHREAD_CREATE_JOINABLE))
374 /* Check if detached state: */
375 if (detachstate == PTHREAD_CREATE_DETACHED)
376 /* Set the detached flag: */
377 (*attr)->flags |= PTHREAD_DETACHED;
379 /* Reset the detached flag: */
380 (*attr)->flags &= ~PTHREAD_DETACHED;
386 __weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize);
389 _pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
393 /* Check for invalid arguments. */
394 if (attr == NULL || *attr == NULL)
397 /* Save the stack size. */
398 (*attr)->guardsize_attr = guardsize;
404 __weak_reference(_pthread_attr_setinheritsched, pthread_attr_setinheritsched);
407 _pthread_attr_setinheritsched(pthread_attr_t *attr, int sched_inherit)
411 if ((attr == NULL) || (*attr == NULL))
413 else if (sched_inherit != PTHREAD_INHERIT_SCHED &&
414 sched_inherit != PTHREAD_EXPLICIT_SCHED)
417 (*attr)->sched_inherit = sched_inherit;
422 __weak_reference(_pthread_attr_setschedparam, pthread_attr_setschedparam);
425 _pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param)
429 if ((attr == NULL) || (*attr == NULL))
435 policy = (*attr)->sched_policy;
437 if (policy == SCHED_FIFO || policy == SCHED_RR) {
438 if (param->sched_priority < _thr_priorities[policy-1].pri_min ||
439 param->sched_priority > _thr_priorities[policy-1].pri_max)
443 * Ignore it for SCHED_OTHER now, patches for glib ports
444 * are wrongly using M:N thread library's internal macro
445 * THR_MIN_PRIORITY and THR_MAX_PRIORITY.
449 (*attr)->prio = param->sched_priority;
454 __weak_reference(_pthread_attr_setschedpolicy, pthread_attr_setschedpolicy);
457 _pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
461 if ((attr == NULL) || (*attr == NULL))
463 else if ((policy < SCHED_FIFO) || (policy > SCHED_RR)) {
466 (*attr)->sched_policy = policy;
467 (*attr)->prio = _thr_priorities[policy-1].pri_default;
472 __weak_reference(_pthread_attr_setscope, pthread_attr_setscope);
475 _pthread_attr_setscope(pthread_attr_t *attr, int contentionscope)
479 if ((attr == NULL) || (*attr == NULL)) {
480 /* Return an invalid argument: */
482 } else if ((contentionscope != PTHREAD_SCOPE_PROCESS) &&
483 (contentionscope != PTHREAD_SCOPE_SYSTEM)) {
485 } else if (contentionscope == PTHREAD_SCOPE_SYSTEM) {
486 (*attr)->flags |= contentionscope;
488 (*attr)->flags &= ~PTHREAD_SCOPE_SYSTEM;
493 __weak_reference(_pthread_attr_setstack, pthread_attr_setstack);
496 _pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr,
501 /* Check for invalid arguments: */
502 if (attr == NULL || *attr == NULL || stackaddr == NULL
503 || stacksize < PTHREAD_STACK_MIN)
506 /* Save the stack address and stack size */
507 (*attr)->stackaddr_attr = stackaddr;
508 (*attr)->stacksize_attr = stacksize;
514 __weak_reference(_pthread_attr_setstackaddr, pthread_attr_setstackaddr);
517 _pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr)
521 /* Check for invalid arguments: */
522 if (attr == NULL || *attr == NULL || stackaddr == NULL)
525 /* Save the stack address: */
526 (*attr)->stackaddr_attr = stackaddr;
532 __weak_reference(_pthread_attr_setstacksize, pthread_attr_setstacksize);
535 _pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
539 /* Check for invalid arguments: */
540 if (attr == NULL || *attr == NULL || stacksize < PTHREAD_STACK_MIN)
543 /* Save the stack size: */
544 (*attr)->stacksize_attr = stacksize;
551 _get_kern_cpuset_size(void)
553 static int kern_cpuset_size = 0;
555 if (kern_cpuset_size == 0) {
558 len = sizeof(kern_cpuset_size);
559 if (sysctlbyname("kern.smp.maxcpus", &kern_cpuset_size,
561 PANIC("failed to get sysctl kern.smp.maxcpus");
563 kern_cpuset_size = (kern_cpuset_size + 7) / 8;
566 return (kern_cpuset_size);
569 __weak_reference(_pthread_attr_setaffinity_np, pthread_attr_setaffinity_np);
571 _pthread_attr_setaffinity_np(pthread_attr_t *pattr, size_t cpusetsize,
572 const cpuset_t *cpusetp)
577 if (pattr == NULL || (attr = (*pattr)) == NULL)
580 if (cpusetsize == 0 || cpusetp == NULL) {
581 if (attr->cpuset != NULL) {
584 attr->cpusetsize = 0;
589 if (cpusetsize > attr->cpusetsize) {
590 size_t kern_size = _get_kern_cpuset_size();
591 if (cpusetsize > kern_size) {
593 for (i = kern_size; i < cpusetsize; ++i) {
594 if (((char *)cpusetp)[i])
598 void *newset = realloc(attr->cpuset, cpusetsize);
601 attr->cpuset = newset;
602 attr->cpusetsize = cpusetsize;
604 memset(((char *)attr->cpuset) + cpusetsize, 0,
605 attr->cpusetsize - cpusetsize);
606 attr->cpusetsize = cpusetsize;
608 memcpy(attr->cpuset, cpusetp, cpusetsize);
614 __weak_reference(_pthread_attr_getaffinity_np, pthread_attr_getaffinity_np);
616 _pthread_attr_getaffinity_np(const pthread_attr_t *pattr, size_t cpusetsize,
622 if (pattr == NULL || (attr = (*pattr)) == NULL)
624 else if (attr->cpuset != NULL) {
625 memcpy(cpusetp, attr->cpuset, MIN(cpusetsize, attr->cpusetsize));
626 if (cpusetsize > attr->cpusetsize)
627 memset(((char *)cpusetp) + attr->cpusetsize, 0,
628 cpusetsize - attr->cpusetsize);
630 size_t kern_size = _get_kern_cpuset_size();
631 memset(cpusetp, -1, MIN(cpusetsize, kern_size));
632 if (cpusetsize > kern_size)
633 memset(((char *)cpusetp) + kern_size, 0,
634 cpusetsize - kern_size);