2 * Copyright (c) 2003 Craig Rodrigues <rodrigc@attbi.com>.
3 * Copyright (c) 2002,2003 Alexey Zelkin <phantom@FreeBSD.org>
4 * Copyright (C) 2001 Jason Evans <jasone@freebsd.org>.
5 * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
6 * Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice(s), this list of conditions and the following disclaimer
14 * unmodified other than the allowable addition of one or more
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice(s), this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
22 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
28 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
30 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
31 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include "namespace.h"
35 #include <sys/types.h>
36 #include <sys/sysctl.h>
37 #include <machine/tls.h>
42 #include <pthread_np.h>
43 #include "un-namespace.h"
45 #include "thr_private.h"
48 _pthread_attr_destroy(pthread_attr_t
*attr
)
52 /* Check for invalid arguments: */
53 if (attr
== NULL
|| *attr
== NULL
)
54 /* Invalid argument: */
57 /* Free the memory allocated to the attribute object: */
61 * Leave the attribute pointer NULL now that the memory
70 __strong_reference(_pthread_attr_destroy
, pthread_attr_destroy
);
73 _pthread_attr_get_np(pthread_t pid
, pthread_attr_t
*dst
)
75 struct pthread
*curthread
;
76 struct pthread_attr attr
;
79 if (pid
== NULL
|| dst
== NULL
|| *dst
== NULL
)
82 curthread
= tls_get_curthread();
83 if ((ret
= _thr_ref_add(curthread
, pid
, /*include dead*/0)) != 0)
86 if (pid
->tlflags
& TLFLAGS_DETACHED
)
87 attr
.flags
|= PTHREAD_DETACHED
;
88 _thr_ref_delete(curthread
, pid
);
89 memcpy(*dst
, &attr
, sizeof(struct pthread_attr
));
94 __strong_reference(_pthread_attr_get_np
, pthread_attr_get_np
);
97 _pthread_attr_getaffinity_np(const pthread_attr_t
*attr
, size_t cpusetsize
,
100 const cpu_set_t
*ret
;
103 if (attr
== NULL
|| *attr
== NULL
|| mask
== NULL
)
106 if (((*attr
)->flags
& THR_CPUMASK
) == 0) {
110 if (sysctlbyname("machdep.smp_active", &mask1
, &len
,
115 ret
= &(*attr
)->cpumask
;
118 if (cpusetsize
> sizeof(*ret
)) {
119 memset(mask
, 0, cpusetsize
);
120 memcpy(mask
, ret
, sizeof(*ret
));
122 memcpy(mask
, ret
, cpusetsize
);
127 __strong_reference(_pthread_attr_getaffinity_np
, pthread_attr_getaffinity_np
);
130 _pthread_attr_getdetachstate(const pthread_attr_t
*attr
, int *detachstate
)
134 /* Check for invalid arguments: */
135 if (attr
== NULL
|| *attr
== NULL
|| detachstate
== NULL
)
138 /* Check if the detached flag is set: */
139 if ((*attr
)->flags
& PTHREAD_DETACHED
)
140 /* Return detached: */
141 *detachstate
= PTHREAD_CREATE_DETACHED
;
143 /* Return joinable: */
144 *detachstate
= PTHREAD_CREATE_JOINABLE
;
150 __strong_reference(_pthread_attr_getdetachstate
, pthread_attr_getdetachstate
);
153 _pthread_attr_getguardsize(const pthread_attr_t
* __restrict attr
,
154 size_t * __restrict guardsize
)
158 /* Check for invalid arguments: */
159 if (attr
== NULL
|| *attr
== NULL
|| guardsize
== NULL
)
162 /* Return the guard size: */
163 *guardsize
= (*attr
)->guardsize_attr
;
169 __strong_reference(_pthread_attr_getguardsize
, pthread_attr_getguardsize
);
172 _pthread_attr_getinheritsched(const pthread_attr_t
* __restrict attr
,
173 int * __restrict sched_inherit
)
177 if ((attr
== NULL
) || (*attr
== NULL
))
180 *sched_inherit
= (*attr
)->sched_inherit
;
185 __strong_reference(_pthread_attr_getinheritsched
, pthread_attr_getinheritsched
);
188 _pthread_attr_getschedparam(const pthread_attr_t
* __restrict attr
,
189 struct sched_param
* __restrict param
)
193 if ((attr
== NULL
) || (*attr
== NULL
) || (param
== NULL
))
196 param
->sched_priority
= (*attr
)->prio
;
201 __strong_reference(_pthread_attr_getschedparam
, pthread_attr_getschedparam
);
204 _pthread_attr_getschedpolicy(const pthread_attr_t
* __restrict attr
,
205 int * __restrict policy
)
209 if ((attr
== NULL
) || (*attr
== NULL
) || (policy
== NULL
))
212 *policy
= (*attr
)->sched_policy
;
217 __strong_reference(_pthread_attr_getschedpolicy
, pthread_attr_getschedpolicy
);
220 _pthread_attr_getscope(const pthread_attr_t
* __restrict attr
,
221 int * __restrict contentionscope
)
225 if ((attr
== NULL
) || (*attr
== NULL
) || (contentionscope
== NULL
))
226 /* Return an invalid argument: */
230 *contentionscope
= ((*attr
)->flags
& PTHREAD_SCOPE_SYSTEM
) ?
231 PTHREAD_SCOPE_SYSTEM
: PTHREAD_SCOPE_PROCESS
;
236 __strong_reference(_pthread_attr_getscope
, pthread_attr_getscope
);
239 _pthread_attr_getstack(const pthread_attr_t
* __restrict attr
,
240 void ** __restrict stackaddr
,
241 size_t * __restrict stacksize
)
245 /* Check for invalid arguments: */
246 if (attr
== NULL
|| *attr
== NULL
|| stackaddr
== NULL
247 || stacksize
== NULL
)
250 /* Return the stack address and size */
251 *stackaddr
= (*attr
)->stackaddr_attr
;
252 *stacksize
= (*attr
)->stacksize_attr
;
258 __strong_reference(_pthread_attr_getstack
, pthread_attr_getstack
);
261 _pthread_attr_getstackaddr(const pthread_attr_t
*attr
, void **stackaddr
)
265 /* Check for invalid arguments: */
266 if (attr
== NULL
|| *attr
== NULL
|| stackaddr
== NULL
)
269 /* Return the stack address: */
270 *stackaddr
= (*attr
)->stackaddr_attr
;
276 __strong_reference(_pthread_attr_getstackaddr
, pthread_attr_getstackaddr
);
279 _pthread_attr_getstacksize(const pthread_attr_t
* __restrict attr
,
280 size_t * __restrict stacksize
)
284 /* Check for invalid arguments: */
285 if (attr
== NULL
|| *attr
== NULL
|| stacksize
== NULL
)
288 /* Return the stack size: */
289 *stacksize
= (*attr
)->stacksize_attr
;
295 __strong_reference(_pthread_attr_getstacksize
, pthread_attr_getstacksize
);
298 _pthread_attr_init(pthread_attr_t
*attr
)
301 pthread_attr_t pattr
;
303 /* Allocate memory for the attribute object: */
304 if ((pattr
= (pthread_attr_t
) malloc(sizeof(struct pthread_attr
))) == NULL
)
305 /* Insufficient memory: */
308 /* Initialise the attribute object with the defaults: */
309 memcpy(pattr
, &_pthread_attr_default
,
310 sizeof(struct pthread_attr
));
312 /* Return a pointer to the attribute object: */
319 __strong_reference(_pthread_attr_init
, pthread_attr_init
);
322 _pthread_attr_setaffinity_np(pthread_attr_t
*attr
, size_t cpusetsize
,
323 const cpu_set_t
*mask
)
325 cpu_set_t active
, mask1
;
326 size_t len
, cplen
= cpusetsize
;
328 if (attr
== NULL
|| *attr
== NULL
|| mask
== NULL
)
331 if (cplen
> sizeof(mask1
))
332 cplen
= sizeof(mask1
);
334 memcpy(&mask1
, mask
, cplen
);
336 len
= sizeof(active
);
337 if (sysctlbyname("machdep.smp_active", &active
, &len
, NULL
, 0) < 0)
340 CPUMASK_ANDMASK(mask1
, active
);
341 if (CPUMASK_TESTZERO(mask1
))
344 (*attr
)->cpumask
= mask1
;
345 (*attr
)->flags
|= THR_CPUMASK
;
349 __strong_reference(_pthread_attr_setaffinity_np
, pthread_attr_setaffinity_np
);
352 _pthread_attr_setcreatesuspend_np(pthread_attr_t
*attr
)
356 if (attr
== NULL
|| *attr
== NULL
) {
359 (*attr
)->suspend
= THR_CREATE_SUSPENDED
;
365 __strong_reference(_pthread_attr_setcreatesuspend_np
, pthread_attr_setcreatesuspend_np
);
368 _pthread_attr_setdetachstate(pthread_attr_t
*attr
, int detachstate
)
372 /* Check for invalid arguments: */
373 if (attr
== NULL
|| *attr
== NULL
||
374 (detachstate
!= PTHREAD_CREATE_DETACHED
&&
375 detachstate
!= PTHREAD_CREATE_JOINABLE
))
378 /* Check if detached state: */
379 if (detachstate
== PTHREAD_CREATE_DETACHED
)
380 /* Set the detached flag: */
381 (*attr
)->flags
|= PTHREAD_DETACHED
;
383 /* Reset the detached flag: */
384 (*attr
)->flags
&= ~PTHREAD_DETACHED
;
390 __strong_reference(_pthread_attr_setdetachstate
, pthread_attr_setdetachstate
);
393 _pthread_attr_setguardsize(pthread_attr_t
*attr
, size_t guardsize
)
397 /* Check for invalid arguments. */
398 if (attr
== NULL
|| *attr
== NULL
)
401 /* Save the stack size. */
402 (*attr
)->guardsize_attr
= guardsize
;
408 __strong_reference(_pthread_attr_setguardsize
, pthread_attr_setguardsize
);
411 _pthread_attr_setinheritsched(pthread_attr_t
*attr
, int sched_inherit
)
415 if ((attr
== NULL
) || (*attr
== NULL
))
417 else if (sched_inherit
!= PTHREAD_INHERIT_SCHED
&&
418 sched_inherit
!= PTHREAD_EXPLICIT_SCHED
)
421 (*attr
)->sched_inherit
= sched_inherit
;
426 __strong_reference(_pthread_attr_setinheritsched
, pthread_attr_setinheritsched
);
429 _pthread_attr_setschedparam(pthread_attr_t
* __restrict attr
,
430 const struct sched_param
* __restrict param
)
434 if ((attr
== NULL
) || (*attr
== NULL
))
440 policy
= (*attr
)->sched_policy
;
443 int minv
= sched_get_priority_min(policy
);
444 int maxv
= sched_get_priority_max(policy
);
445 if (minv
== -1 || maxv
== -1 ||
446 param
->sched_priority
< minv
||
447 param
->sched_priority
> maxv
) {
452 (*attr
)->prio
= param
->sched_priority
;
457 __strong_reference(_pthread_attr_setschedparam
, pthread_attr_setschedparam
);
460 _pthread_attr_setschedpolicy(pthread_attr_t
*attr
, int pol
)
464 if ((attr
== NULL
) || (*attr
== NULL
))
466 else if (pol
!= SCHED_FIFO
&& pol
!= SCHED_OTHER
&& pol
!= SCHED_RR
)
469 (*attr
)->sched_policy
= pol
;
474 __strong_reference(_pthread_attr_setschedpolicy
, pthread_attr_setschedpolicy
);
477 _pthread_attr_setscope(pthread_attr_t
*attr
, int contentionscope
)
481 if ((attr
== NULL
) || (*attr
== NULL
)) {
482 /* Return an invalid argument: */
484 } else if ((contentionscope
!= PTHREAD_SCOPE_PROCESS
) &&
485 (contentionscope
!= PTHREAD_SCOPE_SYSTEM
)) {
487 } else if (contentionscope
== PTHREAD_SCOPE_SYSTEM
) {
488 (*attr
)->flags
|= contentionscope
;
490 (*attr
)->flags
&= ~PTHREAD_SCOPE_SYSTEM
;
495 __strong_reference(_pthread_attr_setscope
, pthread_attr_setscope
);
498 _pthread_attr_setstack(pthread_attr_t
*attr
, void *stackaddr
,
503 /* Check for invalid arguments: */
504 if (attr
== NULL
|| *attr
== NULL
|| stackaddr
== NULL
505 || stacksize
< PTHREAD_STACK_MIN
)
508 /* Save the stack address and stack size */
509 (*attr
)->stackaddr_attr
= stackaddr
;
510 (*attr
)->stacksize_attr
= stacksize
;
516 __strong_reference(_pthread_attr_setstack
, pthread_attr_setstack
);
519 _pthread_attr_setstackaddr(pthread_attr_t
*attr
, void *stackaddr
)
523 /* Check for invalid arguments: */
524 if (attr
== NULL
|| *attr
== NULL
|| stackaddr
== NULL
)
527 /* Save the stack address: */
528 (*attr
)->stackaddr_attr
= stackaddr
;
534 __strong_reference(_pthread_attr_setstackaddr
, pthread_attr_setstackaddr
);
537 _pthread_attr_setstacksize(pthread_attr_t
*attr
, size_t stacksize
)
541 /* Check for invalid arguments: */
542 if (attr
== NULL
|| *attr
== NULL
|| stacksize
< PTHREAD_STACK_MIN
)
545 /* Save the stack size: */
546 (*attr
)->stacksize_attr
= stacksize
;
552 __strong_reference(_pthread_attr_setstacksize
, pthread_attr_setstacksize
);