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sdiff udiff text old ( 214334 ) new ( 214335 )
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thr_attr.c (214334) thr_attr.c (214335)
1/*
2 * Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
19 *
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
30 * SUCH DAMAGE.
31 *
32 */
33
34/*
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.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
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
46 * copyright notices.
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
50 * distribution.
51 *
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.
63 */
64
65/*
66 * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
67 * All rights reserved.
68 *
69 * Redistribution and use in source and binary forms, with or without
70 * modification, are permitted provided that the following conditions
71 * are met:
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.
80 *
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
91 * SUCH DAMAGE.
92 *
1/*
2 * Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
19 *
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
30 * SUCH DAMAGE.
31 *
32 */
33
34/*
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.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
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
46 * copyright notices.
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
50 * distribution.
51 *
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.
63 */
64
65/*
66 * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
67 * All rights reserved.
68 *
69 * Redistribution and use in source and binary forms, with or without
70 * modification, are permitted provided that the following conditions
71 * are met:
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.
80 *
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
91 * SUCH DAMAGE.
92 *
93 * $FreeBSD: head/lib/libthr/thread/thr_attr.c 214334 2010-10-25 09:16:04Z davidxu $
93 * $FreeBSD: head/lib/libthr/thread/thr_attr.c 214335 2010-10-25 11:16:50Z davidxu $
94 */
95
96#include "namespace.h"
97#include <errno.h>
98#include <pthread.h>
99#include <stdlib.h>
100#include <string.h>
101#include <pthread_np.h>
102#include <sys/sysctl.h>
103#include "un-namespace.h"
104
105#include "thr_private.h"
106
107static size_t _get_kern_cpuset_size(void);
108
109__weak_reference(_pthread_attr_destroy, pthread_attr_destroy);
110
111int
112_pthread_attr_destroy(pthread_attr_t *attr)
113{
114 int ret;
115
116 /* Check for invalid arguments: */
117 if (attr == NULL || *attr == NULL)
118 /* Invalid argument: */
119 ret = EINVAL;
120 else {
121 if ((*attr)->cpuset != NULL)
122 free((*attr)->cpuset);
123 /* Free the memory allocated to the attribute object: */
124 free(*attr);
125
126 /*
127 * Leave the attribute pointer NULL now that the memory
128 * has been freed:
129 */
130 *attr = NULL;
131 ret = 0;
132 }
133 return(ret);
134}
135
136__weak_reference(_pthread_attr_get_np, pthread_attr_get_np);
137
138int
139_pthread_attr_get_np(pthread_t pthread, pthread_attr_t *dstattr)
140{
141 struct pthread *curthread;
142 struct pthread_attr attr, *dst;
143 int ret;
144 size_t cpusetsize;
145
94 */
95
96#include "namespace.h"
97#include <errno.h>
98#include <pthread.h>
99#include <stdlib.h>
100#include <string.h>
101#include <pthread_np.h>
102#include <sys/sysctl.h>
103#include "un-namespace.h"
104
105#include "thr_private.h"
106
107static size_t _get_kern_cpuset_size(void);
108
109__weak_reference(_pthread_attr_destroy, pthread_attr_destroy);
110
111int
112_pthread_attr_destroy(pthread_attr_t *attr)
113{
114 int ret;
115
116 /* Check for invalid arguments: */
117 if (attr == NULL || *attr == NULL)
118 /* Invalid argument: */
119 ret = EINVAL;
120 else {
121 if ((*attr)->cpuset != NULL)
122 free((*attr)->cpuset);
123 /* Free the memory allocated to the attribute object: */
124 free(*attr);
125
126 /*
127 * Leave the attribute pointer NULL now that the memory
128 * has been freed:
129 */
130 *attr = NULL;
131 ret = 0;
132 }
133 return(ret);
134}
135
136__weak_reference(_pthread_attr_get_np, pthread_attr_get_np);
137
138int
139_pthread_attr_get_np(pthread_t pthread, pthread_attr_t *dstattr)
140{
141 struct pthread *curthread;
142 struct pthread_attr attr, *dst;
143 int ret;
144 size_t cpusetsize;
145
146 if (pthread == NULL || dst_attr == NULL || (dst = *dstattr) == NULL)
146 if (pthread == NULL || dstattr == NULL || (dst = *dstattr) == NULL)
147 return (EINVAL);
148 cpusetsize = _get_kern_cpuset_size();
149 if (dst->cpusetsize < cpusetsize) {
150 char *newset = realloc(dst->cpuset, cpusetsize);
151 if (newset == NULL)
152 return (errno);
153 memset(newset + dst->cpusetsize, 0, cpusetsize -
154 dst->cpusetsize);
155 dst->cpuset = (cpuset_t *)newset;
156 dst->cpusetsize = cpusetsize;
157 }
158 curthread = _get_curthread();
159 if ((ret = _thr_find_thread(curthread, pthread, /*include dead*/0)) != 0)
160 return (ret);
161 attr = pthread->attr;
162 if (pthread->flags & THR_FLAGS_DETACHED)
163 attr.flags |= PTHREAD_DETACHED;
164 ret = cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, TID(pthread),
165 dst->cpusetsize, dst->cpuset);
166 if (ret == -1)
167 ret = errno;
168 THR_THREAD_UNLOCK(curthread, pthread);
169 if (ret == 0) {
170 memcpy(&dst->pthread_attr_start_copy,
171 &attr.pthread_attr_start_copy,
172 offsetof(struct pthread_attr, pthread_attr_end_copy) -
173 offsetof(struct pthread_attr, pthread_attr_start_copy));
174 }
175 return (ret);
176}
177
178__weak_reference(_pthread_attr_getdetachstate, pthread_attr_getdetachstate);
179
180int
181_pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
182{
183 int ret;
184
185 /* Check for invalid arguments: */
186 if (attr == NULL || *attr == NULL || detachstate == NULL)
187 ret = EINVAL;
188 else {
189 /* Check if the detached flag is set: */
190 if ((*attr)->flags & PTHREAD_DETACHED)
191 /* Return detached: */
192 *detachstate = PTHREAD_CREATE_DETACHED;
193 else
194 /* Return joinable: */
195 *detachstate = PTHREAD_CREATE_JOINABLE;
196 ret = 0;
197 }
198 return(ret);
199}
200
201__weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize);
202
203int
204_pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize)
205{
206 int ret;
207
208 /* Check for invalid arguments: */
209 if (attr == NULL || *attr == NULL || guardsize == NULL)
210 ret = EINVAL;
211 else {
212 /* Return the guard size: */
213 *guardsize = (*attr)->guardsize_attr;
214 ret = 0;
215 }
216 return(ret);
217}
218
219__weak_reference(_pthread_attr_getinheritsched, pthread_attr_getinheritsched);
220
221int
222_pthread_attr_getinheritsched(const pthread_attr_t *attr, int *sched_inherit)
223{
224 int ret = 0;
225
226 if ((attr == NULL) || (*attr == NULL))
227 ret = EINVAL;
228 else
229 *sched_inherit = (*attr)->sched_inherit;
230
231 return(ret);
232}
233
234__weak_reference(_pthread_attr_getschedparam, pthread_attr_getschedparam);
235
236int
237_pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param)
238{
239 int ret = 0;
240
241 if ((attr == NULL) || (*attr == NULL) || (param == NULL))
242 ret = EINVAL;
243 else
244 param->sched_priority = (*attr)->prio;
245
246 return(ret);
247}
248
249__weak_reference(_pthread_attr_getschedpolicy, pthread_attr_getschedpolicy);
250
251int
252_pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
253{
254 int ret = 0;
255
256 if ((attr == NULL) || (*attr == NULL) || (policy == NULL))
257 ret = EINVAL;
258 else
259 *policy = (*attr)->sched_policy;
260
261 return(ret);
262}
263
264__weak_reference(_pthread_attr_getscope, pthread_attr_getscope);
265
266int
267_pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope)
268{
269 int ret = 0;
270
271 if ((attr == NULL) || (*attr == NULL) || (contentionscope == NULL))
272 /* Return an invalid argument: */
273 ret = EINVAL;
274
275 else
276 *contentionscope = (*attr)->flags & PTHREAD_SCOPE_SYSTEM ?
277 PTHREAD_SCOPE_SYSTEM : PTHREAD_SCOPE_PROCESS;
278
279 return(ret);
280}
281
282__weak_reference(_pthread_attr_getstack, pthread_attr_getstack);
283
284int
285_pthread_attr_getstack(const pthread_attr_t * __restrict attr,
286 void ** __restrict stackaddr,
287 size_t * __restrict stacksize)
288{
289 int ret;
290
291 /* Check for invalid arguments: */
292 if (attr == NULL || *attr == NULL || stackaddr == NULL
293 || stacksize == NULL )
294 ret = EINVAL;
295 else {
296 /* Return the stack address and size */
297 *stackaddr = (*attr)->stackaddr_attr;
298 *stacksize = (*attr)->stacksize_attr;
299 ret = 0;
300 }
301 return(ret);
302}
303
304__weak_reference(_pthread_attr_getstackaddr, pthread_attr_getstackaddr);
305
306int
307_pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr)
308{
309 int ret;
310
311 /* Check for invalid arguments: */
312 if (attr == NULL || *attr == NULL || stackaddr == NULL)
313 ret = EINVAL;
314 else {
315 /* Return the stack address: */
316 *stackaddr = (*attr)->stackaddr_attr;
317 ret = 0;
318 }
319 return(ret);
320}
321
322__weak_reference(_pthread_attr_getstacksize, pthread_attr_getstacksize);
323
324int
325_pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
326{
327 int ret;
328
329 /* Check for invalid arguments: */
330 if (attr == NULL || *attr == NULL || stacksize == NULL)
331 ret = EINVAL;
332 else {
333 /* Return the stack size: */
334 *stacksize = (*attr)->stacksize_attr;
335 ret = 0;
336 }
337 return(ret);
338}
339
340__weak_reference(_pthread_attr_init, pthread_attr_init);
341
342int
343_pthread_attr_init(pthread_attr_t *attr)
344{
345 int ret;
346 pthread_attr_t pattr;
347
348 _thr_check_init();
349
350 /* Allocate memory for the attribute object: */
351 if ((pattr = (pthread_attr_t) malloc(sizeof(struct pthread_attr))) == NULL)
352 /* Insufficient memory: */
353 ret = ENOMEM;
354 else {
355 /* Initialise the attribute object with the defaults: */
356 memcpy(pattr, &_pthread_attr_default, sizeof(struct pthread_attr));
357
358 /* Return a pointer to the attribute object: */
359 *attr = pattr;
360 ret = 0;
361 }
362 return(ret);
363}
364
365__weak_reference(_pthread_attr_setcreatesuspend_np, pthread_attr_setcreatesuspend_np);
366
367int
368_pthread_attr_setcreatesuspend_np(pthread_attr_t *attr)
369{
370 int ret;
371
372 if (attr == NULL || *attr == NULL) {
373 ret = EINVAL;
374 } else {
375 (*attr)->suspend = THR_CREATE_SUSPENDED;
376 ret = 0;
377 }
378 return(ret);
379}
380
381__weak_reference(_pthread_attr_setdetachstate, pthread_attr_setdetachstate);
382
383int
384_pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
385{
386 int ret;
387
388 /* Check for invalid arguments: */
389 if (attr == NULL || *attr == NULL ||
390 (detachstate != PTHREAD_CREATE_DETACHED &&
391 detachstate != PTHREAD_CREATE_JOINABLE))
392 ret = EINVAL;
393 else {
394 /* Check if detached state: */
395 if (detachstate == PTHREAD_CREATE_DETACHED)
396 /* Set the detached flag: */
397 (*attr)->flags |= PTHREAD_DETACHED;
398 else
399 /* Reset the detached flag: */
400 (*attr)->flags &= ~PTHREAD_DETACHED;
401 ret = 0;
402 }
403 return(ret);
404}
405
406__weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize);
407
408int
409_pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
410{
411 int ret;
412
413 /* Check for invalid arguments. */
414 if (attr == NULL || *attr == NULL)
415 ret = EINVAL;
416 else {
417 /* Save the stack size. */
418 (*attr)->guardsize_attr = guardsize;
419 ret = 0;
420 }
421 return(ret);
422}
423
424__weak_reference(_pthread_attr_setinheritsched, pthread_attr_setinheritsched);
425
426int
427_pthread_attr_setinheritsched(pthread_attr_t *attr, int sched_inherit)
428{
429 int ret = 0;
430
431 if ((attr == NULL) || (*attr == NULL))
432 ret = EINVAL;
433 else if (sched_inherit != PTHREAD_INHERIT_SCHED &&
434 sched_inherit != PTHREAD_EXPLICIT_SCHED)
435 ret = ENOTSUP;
436 else
437 (*attr)->sched_inherit = sched_inherit;
438
439 return(ret);
440}
441
442__weak_reference(_pthread_attr_setschedparam, pthread_attr_setschedparam);
443
444int
445_pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param)
446{
447 int policy;
448
449 if ((attr == NULL) || (*attr == NULL))
450 return (EINVAL);
451
452 if (param == NULL)
453 return (ENOTSUP);
454
455 policy = (*attr)->sched_policy;
456
457 if (policy == SCHED_FIFO || policy == SCHED_RR) {
458 if (param->sched_priority < _thr_priorities[policy-1].pri_min ||
459 param->sched_priority > _thr_priorities[policy-1].pri_max)
460 return (ENOTSUP);
461 } else {
462 /*
463 * Ignore it for SCHED_OTHER now, patches for glib ports
464 * are wrongly using M:N thread library's internal macro
465 * THR_MIN_PRIORITY and THR_MAX_PRIORITY.
466 */
467 }
468
469 (*attr)->prio = param->sched_priority;
470
471 return (0);
472}
473
474__weak_reference(_pthread_attr_setschedpolicy, pthread_attr_setschedpolicy);
475
476int
477_pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
478{
479 int ret = 0;
480
481 if ((attr == NULL) || (*attr == NULL))
482 ret = EINVAL;
483 else if ((policy < SCHED_FIFO) || (policy > SCHED_RR)) {
484 ret = ENOTSUP;
485 } else {
486 (*attr)->sched_policy = policy;
487 (*attr)->prio = _thr_priorities[policy-1].pri_default;
488 }
489 return(ret);
490}
491
492__weak_reference(_pthread_attr_setscope, pthread_attr_setscope);
493
494int
495_pthread_attr_setscope(pthread_attr_t *attr, int contentionscope)
496{
497 int ret = 0;
498
499 if ((attr == NULL) || (*attr == NULL)) {
500 /* Return an invalid argument: */
501 ret = EINVAL;
502 } else if ((contentionscope != PTHREAD_SCOPE_PROCESS) &&
503 (contentionscope != PTHREAD_SCOPE_SYSTEM)) {
504 ret = EINVAL;
505 } else if (contentionscope == PTHREAD_SCOPE_SYSTEM) {
506 (*attr)->flags |= contentionscope;
507 } else {
508 (*attr)->flags &= ~PTHREAD_SCOPE_SYSTEM;
509 }
510 return (ret);
511}
512
513__weak_reference(_pthread_attr_setstack, pthread_attr_setstack);
514
515int
516_pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr,
517 size_t stacksize)
518{
519 int ret;
520
521 /* Check for invalid arguments: */
522 if (attr == NULL || *attr == NULL || stackaddr == NULL
523 || stacksize < PTHREAD_STACK_MIN)
524 ret = EINVAL;
525 else {
526 /* Save the stack address and stack size */
527 (*attr)->stackaddr_attr = stackaddr;
528 (*attr)->stacksize_attr = stacksize;
529 ret = 0;
530 }
531 return(ret);
532}
533
534__weak_reference(_pthread_attr_setstackaddr, pthread_attr_setstackaddr);
535
536int
537_pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr)
538{
539 int ret;
540
541 /* Check for invalid arguments: */
542 if (attr == NULL || *attr == NULL || stackaddr == NULL)
543 ret = EINVAL;
544 else {
545 /* Save the stack address: */
546 (*attr)->stackaddr_attr = stackaddr;
547 ret = 0;
548 }
549 return(ret);
550}
551
552__weak_reference(_pthread_attr_setstacksize, pthread_attr_setstacksize);
553
554int
555_pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
556{
557 int ret;
558
559 /* Check for invalid arguments: */
560 if (attr == NULL || *attr == NULL || stacksize < PTHREAD_STACK_MIN)
561 ret = EINVAL;
562 else {
563 /* Save the stack size: */
564 (*attr)->stacksize_attr = stacksize;
565 ret = 0;
566 }
567 return(ret);
568}
569
570static size_t
571_get_kern_cpuset_size(void)
572{
573 static int kern_cpuset_size = 0;
574
575 if (kern_cpuset_size == 0) {
576 size_t len;
577
578 len = sizeof(kern_cpuset_size);
579 if (sysctlbyname("kern.smp.maxcpus", &kern_cpuset_size,
580 &len, NULL, 0))
581 PANIC("failed to get sysctl kern.smp.maxcpus");
582
583 kern_cpuset_size = (kern_cpuset_size + 7) / 8;
584 }
585
586 return (kern_cpuset_size);
587}
588
589__weak_reference(_pthread_attr_setaffinity_np, pthread_attr_setaffinity_np);
590int
591_pthread_attr_setaffinity_np(pthread_attr_t *pattr, size_t cpusetsize,
592 const cpuset_t *cpusetp)
593{
594 pthread_attr_t attr;
595 int ret;
596
597 if (pattr == NULL || (attr = (*pattr)) == NULL)
598 ret = EINVAL;
599 else {
600 if (cpusetsize == 0 || cpusetp == NULL) {
601 if (attr->cpuset != NULL) {
602 free(attr->cpuset);
603 attr->cpuset = NULL;
604 attr->cpusetsize = 0;
605 }
606 return (0);
607 }
608
609 if (cpusetsize > attr->cpusetsize) {
610 size_t kern_size = _get_kern_cpuset_size();
611 if (cpusetsize > kern_size) {
612 size_t i;
613 for (i = kern_size; i < cpusetsize; ++i) {
614 if (((char *)cpusetp)[i])
615 return (EINVAL);
616 }
617 }
618 void *newset = realloc(attr->cpuset, cpusetsize);
619 if (newset == NULL)
620 return (ENOMEM);
621 attr->cpuset = newset;
622 attr->cpusetsize = cpusetsize;
623 } else {
624 memset(((char *)attr->cpuset) + cpusetsize, 0,
625 attr->cpusetsize - cpusetsize);
626 attr->cpusetsize = cpusetsize;
627 }
628 memcpy(attr->cpuset, cpusetp, cpusetsize);
629 ret = 0;
630 }
631 return (ret);
632}
633
634__weak_reference(_pthread_attr_getaffinity_np, pthread_attr_getaffinity_np);
635int
636_pthread_attr_getaffinity_np(const pthread_attr_t *pattr, size_t cpusetsize,
637 cpuset_t *cpusetp)
638{
639 pthread_attr_t attr;
640 int ret = 0;
641
642 if (pattr == NULL || (attr = (*pattr)) == NULL)
643 ret = EINVAL;
644 else if (attr->cpuset != NULL) {
645 memcpy(cpusetp, attr->cpuset, MIN(cpusetsize, attr->cpusetsize));
646 if (cpusetsize > attr->cpusetsize)
647 memset(((char *)cpusetp) + attr->cpusetsize, 0,
648 cpusetsize - attr->cpusetsize);
649 } else {
650 size_t kern_size = _get_kern_cpuset_size();
651 memset(cpusetp, -1, MIN(cpusetsize, kern_size));
652 if (cpusetsize > kern_size)
653 memset(((char *)cpusetp) + kern_size, 0,
654 cpusetsize - kern_size);
655 }
656 return (ret);
657}
147 return (EINVAL);
148 cpusetsize = _get_kern_cpuset_size();
149 if (dst->cpusetsize < cpusetsize) {
150 char *newset = realloc(dst->cpuset, cpusetsize);
151 if (newset == NULL)
152 return (errno);
153 memset(newset + dst->cpusetsize, 0, cpusetsize -
154 dst->cpusetsize);
155 dst->cpuset = (cpuset_t *)newset;
156 dst->cpusetsize = cpusetsize;
157 }
158 curthread = _get_curthread();
159 if ((ret = _thr_find_thread(curthread, pthread, /*include dead*/0)) != 0)
160 return (ret);
161 attr = pthread->attr;
162 if (pthread->flags & THR_FLAGS_DETACHED)
163 attr.flags |= PTHREAD_DETACHED;
164 ret = cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, TID(pthread),
165 dst->cpusetsize, dst->cpuset);
166 if (ret == -1)
167 ret = errno;
168 THR_THREAD_UNLOCK(curthread, pthread);
169 if (ret == 0) {
170 memcpy(&dst->pthread_attr_start_copy,
171 &attr.pthread_attr_start_copy,
172 offsetof(struct pthread_attr, pthread_attr_end_copy) -
173 offsetof(struct pthread_attr, pthread_attr_start_copy));
174 }
175 return (ret);
176}
177
178__weak_reference(_pthread_attr_getdetachstate, pthread_attr_getdetachstate);
179
180int
181_pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate)
182{
183 int ret;
184
185 /* Check for invalid arguments: */
186 if (attr == NULL || *attr == NULL || detachstate == NULL)
187 ret = EINVAL;
188 else {
189 /* Check if the detached flag is set: */
190 if ((*attr)->flags & PTHREAD_DETACHED)
191 /* Return detached: */
192 *detachstate = PTHREAD_CREATE_DETACHED;
193 else
194 /* Return joinable: */
195 *detachstate = PTHREAD_CREATE_JOINABLE;
196 ret = 0;
197 }
198 return(ret);
199}
200
201__weak_reference(_pthread_attr_getguardsize, pthread_attr_getguardsize);
202
203int
204_pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize)
205{
206 int ret;
207
208 /* Check for invalid arguments: */
209 if (attr == NULL || *attr == NULL || guardsize == NULL)
210 ret = EINVAL;
211 else {
212 /* Return the guard size: */
213 *guardsize = (*attr)->guardsize_attr;
214 ret = 0;
215 }
216 return(ret);
217}
218
219__weak_reference(_pthread_attr_getinheritsched, pthread_attr_getinheritsched);
220
221int
222_pthread_attr_getinheritsched(const pthread_attr_t *attr, int *sched_inherit)
223{
224 int ret = 0;
225
226 if ((attr == NULL) || (*attr == NULL))
227 ret = EINVAL;
228 else
229 *sched_inherit = (*attr)->sched_inherit;
230
231 return(ret);
232}
233
234__weak_reference(_pthread_attr_getschedparam, pthread_attr_getschedparam);
235
236int
237_pthread_attr_getschedparam(const pthread_attr_t *attr, struct sched_param *param)
238{
239 int ret = 0;
240
241 if ((attr == NULL) || (*attr == NULL) || (param == NULL))
242 ret = EINVAL;
243 else
244 param->sched_priority = (*attr)->prio;
245
246 return(ret);
247}
248
249__weak_reference(_pthread_attr_getschedpolicy, pthread_attr_getschedpolicy);
250
251int
252_pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy)
253{
254 int ret = 0;
255
256 if ((attr == NULL) || (*attr == NULL) || (policy == NULL))
257 ret = EINVAL;
258 else
259 *policy = (*attr)->sched_policy;
260
261 return(ret);
262}
263
264__weak_reference(_pthread_attr_getscope, pthread_attr_getscope);
265
266int
267_pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope)
268{
269 int ret = 0;
270
271 if ((attr == NULL) || (*attr == NULL) || (contentionscope == NULL))
272 /* Return an invalid argument: */
273 ret = EINVAL;
274
275 else
276 *contentionscope = (*attr)->flags & PTHREAD_SCOPE_SYSTEM ?
277 PTHREAD_SCOPE_SYSTEM : PTHREAD_SCOPE_PROCESS;
278
279 return(ret);
280}
281
282__weak_reference(_pthread_attr_getstack, pthread_attr_getstack);
283
284int
285_pthread_attr_getstack(const pthread_attr_t * __restrict attr,
286 void ** __restrict stackaddr,
287 size_t * __restrict stacksize)
288{
289 int ret;
290
291 /* Check for invalid arguments: */
292 if (attr == NULL || *attr == NULL || stackaddr == NULL
293 || stacksize == NULL )
294 ret = EINVAL;
295 else {
296 /* Return the stack address and size */
297 *stackaddr = (*attr)->stackaddr_attr;
298 *stacksize = (*attr)->stacksize_attr;
299 ret = 0;
300 }
301 return(ret);
302}
303
304__weak_reference(_pthread_attr_getstackaddr, pthread_attr_getstackaddr);
305
306int
307_pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr)
308{
309 int ret;
310
311 /* Check for invalid arguments: */
312 if (attr == NULL || *attr == NULL || stackaddr == NULL)
313 ret = EINVAL;
314 else {
315 /* Return the stack address: */
316 *stackaddr = (*attr)->stackaddr_attr;
317 ret = 0;
318 }
319 return(ret);
320}
321
322__weak_reference(_pthread_attr_getstacksize, pthread_attr_getstacksize);
323
324int
325_pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize)
326{
327 int ret;
328
329 /* Check for invalid arguments: */
330 if (attr == NULL || *attr == NULL || stacksize == NULL)
331 ret = EINVAL;
332 else {
333 /* Return the stack size: */
334 *stacksize = (*attr)->stacksize_attr;
335 ret = 0;
336 }
337 return(ret);
338}
339
340__weak_reference(_pthread_attr_init, pthread_attr_init);
341
342int
343_pthread_attr_init(pthread_attr_t *attr)
344{
345 int ret;
346 pthread_attr_t pattr;
347
348 _thr_check_init();
349
350 /* Allocate memory for the attribute object: */
351 if ((pattr = (pthread_attr_t) malloc(sizeof(struct pthread_attr))) == NULL)
352 /* Insufficient memory: */
353 ret = ENOMEM;
354 else {
355 /* Initialise the attribute object with the defaults: */
356 memcpy(pattr, &_pthread_attr_default, sizeof(struct pthread_attr));
357
358 /* Return a pointer to the attribute object: */
359 *attr = pattr;
360 ret = 0;
361 }
362 return(ret);
363}
364
365__weak_reference(_pthread_attr_setcreatesuspend_np, pthread_attr_setcreatesuspend_np);
366
367int
368_pthread_attr_setcreatesuspend_np(pthread_attr_t *attr)
369{
370 int ret;
371
372 if (attr == NULL || *attr == NULL) {
373 ret = EINVAL;
374 } else {
375 (*attr)->suspend = THR_CREATE_SUSPENDED;
376 ret = 0;
377 }
378 return(ret);
379}
380
381__weak_reference(_pthread_attr_setdetachstate, pthread_attr_setdetachstate);
382
383int
384_pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate)
385{
386 int ret;
387
388 /* Check for invalid arguments: */
389 if (attr == NULL || *attr == NULL ||
390 (detachstate != PTHREAD_CREATE_DETACHED &&
391 detachstate != PTHREAD_CREATE_JOINABLE))
392 ret = EINVAL;
393 else {
394 /* Check if detached state: */
395 if (detachstate == PTHREAD_CREATE_DETACHED)
396 /* Set the detached flag: */
397 (*attr)->flags |= PTHREAD_DETACHED;
398 else
399 /* Reset the detached flag: */
400 (*attr)->flags &= ~PTHREAD_DETACHED;
401 ret = 0;
402 }
403 return(ret);
404}
405
406__weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize);
407
408int
409_pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
410{
411 int ret;
412
413 /* Check for invalid arguments. */
414 if (attr == NULL || *attr == NULL)
415 ret = EINVAL;
416 else {
417 /* Save the stack size. */
418 (*attr)->guardsize_attr = guardsize;
419 ret = 0;
420 }
421 return(ret);
422}
423
424__weak_reference(_pthread_attr_setinheritsched, pthread_attr_setinheritsched);
425
426int
427_pthread_attr_setinheritsched(pthread_attr_t *attr, int sched_inherit)
428{
429 int ret = 0;
430
431 if ((attr == NULL) || (*attr == NULL))
432 ret = EINVAL;
433 else if (sched_inherit != PTHREAD_INHERIT_SCHED &&
434 sched_inherit != PTHREAD_EXPLICIT_SCHED)
435 ret = ENOTSUP;
436 else
437 (*attr)->sched_inherit = sched_inherit;
438
439 return(ret);
440}
441
442__weak_reference(_pthread_attr_setschedparam, pthread_attr_setschedparam);
443
444int
445_pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param)
446{
447 int policy;
448
449 if ((attr == NULL) || (*attr == NULL))
450 return (EINVAL);
451
452 if (param == NULL)
453 return (ENOTSUP);
454
455 policy = (*attr)->sched_policy;
456
457 if (policy == SCHED_FIFO || policy == SCHED_RR) {
458 if (param->sched_priority < _thr_priorities[policy-1].pri_min ||
459 param->sched_priority > _thr_priorities[policy-1].pri_max)
460 return (ENOTSUP);
461 } else {
462 /*
463 * Ignore it for SCHED_OTHER now, patches for glib ports
464 * are wrongly using M:N thread library's internal macro
465 * THR_MIN_PRIORITY and THR_MAX_PRIORITY.
466 */
467 }
468
469 (*attr)->prio = param->sched_priority;
470
471 return (0);
472}
473
474__weak_reference(_pthread_attr_setschedpolicy, pthread_attr_setschedpolicy);
475
476int
477_pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
478{
479 int ret = 0;
480
481 if ((attr == NULL) || (*attr == NULL))
482 ret = EINVAL;
483 else if ((policy < SCHED_FIFO) || (policy > SCHED_RR)) {
484 ret = ENOTSUP;
485 } else {
486 (*attr)->sched_policy = policy;
487 (*attr)->prio = _thr_priorities[policy-1].pri_default;
488 }
489 return(ret);
490}
491
492__weak_reference(_pthread_attr_setscope, pthread_attr_setscope);
493
494int
495_pthread_attr_setscope(pthread_attr_t *attr, int contentionscope)
496{
497 int ret = 0;
498
499 if ((attr == NULL) || (*attr == NULL)) {
500 /* Return an invalid argument: */
501 ret = EINVAL;
502 } else if ((contentionscope != PTHREAD_SCOPE_PROCESS) &&
503 (contentionscope != PTHREAD_SCOPE_SYSTEM)) {
504 ret = EINVAL;
505 } else if (contentionscope == PTHREAD_SCOPE_SYSTEM) {
506 (*attr)->flags |= contentionscope;
507 } else {
508 (*attr)->flags &= ~PTHREAD_SCOPE_SYSTEM;
509 }
510 return (ret);
511}
512
513__weak_reference(_pthread_attr_setstack, pthread_attr_setstack);
514
515int
516_pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr,
517 size_t stacksize)
518{
519 int ret;
520
521 /* Check for invalid arguments: */
522 if (attr == NULL || *attr == NULL || stackaddr == NULL
523 || stacksize < PTHREAD_STACK_MIN)
524 ret = EINVAL;
525 else {
526 /* Save the stack address and stack size */
527 (*attr)->stackaddr_attr = stackaddr;
528 (*attr)->stacksize_attr = stacksize;
529 ret = 0;
530 }
531 return(ret);
532}
533
534__weak_reference(_pthread_attr_setstackaddr, pthread_attr_setstackaddr);
535
536int
537_pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr)
538{
539 int ret;
540
541 /* Check for invalid arguments: */
542 if (attr == NULL || *attr == NULL || stackaddr == NULL)
543 ret = EINVAL;
544 else {
545 /* Save the stack address: */
546 (*attr)->stackaddr_attr = stackaddr;
547 ret = 0;
548 }
549 return(ret);
550}
551
552__weak_reference(_pthread_attr_setstacksize, pthread_attr_setstacksize);
553
554int
555_pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
556{
557 int ret;
558
559 /* Check for invalid arguments: */
560 if (attr == NULL || *attr == NULL || stacksize < PTHREAD_STACK_MIN)
561 ret = EINVAL;
562 else {
563 /* Save the stack size: */
564 (*attr)->stacksize_attr = stacksize;
565 ret = 0;
566 }
567 return(ret);
568}
569
570static size_t
571_get_kern_cpuset_size(void)
572{
573 static int kern_cpuset_size = 0;
574
575 if (kern_cpuset_size == 0) {
576 size_t len;
577
578 len = sizeof(kern_cpuset_size);
579 if (sysctlbyname("kern.smp.maxcpus", &kern_cpuset_size,
580 &len, NULL, 0))
581 PANIC("failed to get sysctl kern.smp.maxcpus");
582
583 kern_cpuset_size = (kern_cpuset_size + 7) / 8;
584 }
585
586 return (kern_cpuset_size);
587}
588
589__weak_reference(_pthread_attr_setaffinity_np, pthread_attr_setaffinity_np);
590int
591_pthread_attr_setaffinity_np(pthread_attr_t *pattr, size_t cpusetsize,
592 const cpuset_t *cpusetp)
593{
594 pthread_attr_t attr;
595 int ret;
596
597 if (pattr == NULL || (attr = (*pattr)) == NULL)
598 ret = EINVAL;
599 else {
600 if (cpusetsize == 0 || cpusetp == NULL) {
601 if (attr->cpuset != NULL) {
602 free(attr->cpuset);
603 attr->cpuset = NULL;
604 attr->cpusetsize = 0;
605 }
606 return (0);
607 }
608
609 if (cpusetsize > attr->cpusetsize) {
610 size_t kern_size = _get_kern_cpuset_size();
611 if (cpusetsize > kern_size) {
612 size_t i;
613 for (i = kern_size; i < cpusetsize; ++i) {
614 if (((char *)cpusetp)[i])
615 return (EINVAL);
616 }
617 }
618 void *newset = realloc(attr->cpuset, cpusetsize);
619 if (newset == NULL)
620 return (ENOMEM);
621 attr->cpuset = newset;
622 attr->cpusetsize = cpusetsize;
623 } else {
624 memset(((char *)attr->cpuset) + cpusetsize, 0,
625 attr->cpusetsize - cpusetsize);
626 attr->cpusetsize = cpusetsize;
627 }
628 memcpy(attr->cpuset, cpusetp, cpusetsize);
629 ret = 0;
630 }
631 return (ret);
632}
633
634__weak_reference(_pthread_attr_getaffinity_np, pthread_attr_getaffinity_np);
635int
636_pthread_attr_getaffinity_np(const pthread_attr_t *pattr, size_t cpusetsize,
637 cpuset_t *cpusetp)
638{
639 pthread_attr_t attr;
640 int ret = 0;
641
642 if (pattr == NULL || (attr = (*pattr)) == NULL)
643 ret = EINVAL;
644 else if (attr->cpuset != NULL) {
645 memcpy(cpusetp, attr->cpuset, MIN(cpusetsize, attr->cpusetsize));
646 if (cpusetsize > attr->cpusetsize)
647 memset(((char *)cpusetp) + attr->cpusetsize, 0,
648 cpusetsize - attr->cpusetsize);
649 } else {
650 size_t kern_size = _get_kern_cpuset_size();
651 memset(cpusetp, -1, MIN(cpusetsize, kern_size));
652 if (cpusetsize > kern_size)
653 memset(((char *)cpusetp) + kern_size, 0,
654 cpusetsize - kern_size);
655 }
656 return (ret);
657}