]>
Commit | Line | Data |
---|---|---|
fea681da MK |
1 | .\" Copyright (c) 2003 Andries Brouwer (aeb@cwi.nl) |
2 | .\" | |
1dd72f9c | 3 | .\" %%%LICENSE_START(GPLv2+_DOC_FULL) |
fea681da MK |
4 | .\" This is free documentation; you can redistribute it and/or |
5 | .\" modify it under the terms of the GNU General Public License as | |
6 | .\" published by the Free Software Foundation; either version 2 of | |
7 | .\" the License, or (at your option) any later version. | |
8 | .\" | |
9 | .\" The GNU General Public License's references to "object code" | |
10 | .\" and "executables" are to be interpreted as the output of any | |
11 | .\" document formatting or typesetting system, including | |
12 | .\" intermediate and printed output. | |
13 | .\" | |
14 | .\" This manual is distributed in the hope that it will be useful, | |
15 | .\" but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | .\" GNU General Public License for more details. | |
18 | .\" | |
19 | .\" You should have received a copy of the GNU General Public | |
c715f741 MK |
20 | .\" License along with this manual; if not, see |
21 | .\" <http://www.gnu.org/licenses/>. | |
6a8d8745 | 22 | .\" %%%LICENSE_END |
fea681da | 23 | .\" |
949f13d2 | 24 | .TH POSIXOPTIONS 7 2007-12-21 "" "Linux Programmer's Manual" |
fea681da MK |
25 | .SH NAME |
26 | posixoptions \- optional parts of the POSIX standard | |
27 | .SH DESCRIPTION | |
4dec66f9 | 28 | The POSIX standard (the information below is from POSIX.1-2001) |
6beb1671 | 29 | describes a set of behaviors and interfaces for a compliant system. |
fea681da MK |
30 | However, many interfaces are optional and there are feature test macros |
31 | to test the availability of interfaces at compile time, and functions | |
32 | .BR sysconf (3), | |
33 | .BR fpathconf (3), | |
34 | .BR pathconf (3), | |
35 | .BR confstr (3) | |
c13182ef MK |
36 | to do this at run time. |
37 | From shell scripts one can use | |
fea681da MK |
38 | .BR getconf (1). |
39 | For more detail, see | |
40 | .BR sysconf (3). | |
41 | .LP | |
42 | We give the name of the POSIX abbreviation, the option, the name of the | |
0b80cf56 | 43 | .BR sysconf (3) |
fea681da MK |
44 | parameter used to inquire about the option, and possibly |
45 | a very short description. | |
46 | Much more precise detail can be found in the POSIX standard itself, | |
47 | versions of which can nowadays be accessed freely on the web. | |
73d8cece | 48 | .SS ADV - _POSIX_ADVISORY_INFO - _SC_ADVISORY_INFO |
949f13d2 | 49 | The following advisory functions are present: |
fea681da MK |
50 | .br |
51 | .nf | |
52 | .in +4 | |
949f13d2 | 53 | |
63aa9df0 MK |
54 | .IR posix_fadvise (), |
55 | .IR posix_fallocate (), | |
56 | .IR posix_memalign (), | |
949f13d2 | 57 | .IR posix_madvise (). |
fea681da MK |
58 | .br |
59 | .in -4 | |
60 | .fi | |
73d8cece | 61 | .SS AIO - _POSIX_ASYNCHRONOUS_IO - _SC_ASYNCHRONOUS_IO |
fea681da MK |
62 | The header |
63 | .I <aio.h> | |
64 | is present. | |
949f13d2 | 65 | The following functions are present: |
fea681da MK |
66 | .br |
67 | .nf | |
68 | .in +4 | |
949f13d2 | 69 | |
63aa9df0 MK |
70 | .IR aio_cancel (), |
71 | .IR aio_error (), | |
72 | .IR aio_fsync (), | |
73 | .IR aio_read (), | |
74 | .IR aio_return (), | |
75 | .IR aio_suspend (), | |
76 | .IR aio_write (), | |
949f13d2 | 77 | .IR lio_listio (). |
fea681da MK |
78 | .br |
79 | .in -4 | |
80 | .fi | |
73d8cece | 81 | .SS BAR - _POSIX_BARRIERS - _SC_BARRIERS |
8c4f34f8 MK |
82 | This option implies the |
83 | .B _POSIX_THREADS | |
84 | and | |
85 | .B _POSIX_THREAD_SAFE_FUNCTIONS | |
86 | options. | |
949f13d2 | 87 | The following functions are present: |
fea681da MK |
88 | .br |
89 | .nf | |
90 | .in +4 | |
949f13d2 | 91 | |
63aa9df0 MK |
92 | .IR pthread_barrier_destroy (), |
93 | .IR pthread_barrier_init (), | |
94 | .IR pthread_barrier_wait (), | |
95 | .IR pthread_barrierattr_destroy (), | |
949f13d2 | 96 | .IR pthread_barrierattr_init (). |
fea681da MK |
97 | .in -4 |
98 | .br | |
99 | .fi | |
d282bb24 | 100 | .\" .SS BE |
fea681da | 101 | .\" Batch environment. |
d282bb24 | 102 | .\" .SS CD |
fea681da | 103 | .\" C development. |
73d8cece | 104 | .SS --- - POSIX_CHOWN_RESTRICTED |
9b6d6dcc | 105 | If this option is in effect (as it always is under POSIX.1-2001), |
33a0ccb2 MK |
106 | then only root may change the owner of a file, and nonroot can |
107 | set the group of a file only to one of the groups it belongs to. | |
fea681da | 108 | This affects the functions |
63aa9df0 MK |
109 | .IR chown (), |
110 | .IR fchown (). | |
fea681da | 111 | .\" What about lchown() ? |
73d8cece | 112 | .SS CS - _POSIX_CLOCK_SELECTION - _SC_CLOCK_SELECTION |
8c4f34f8 MK |
113 | This option implies the |
114 | .B _POSIX_TIMERS | |
115 | option. | |
949f13d2 | 116 | The following functions are present: |
fea681da MK |
117 | .br |
118 | .nf | |
119 | .in +4 | |
949f13d2 | 120 | |
63aa9df0 MK |
121 | .IR pthread_condattr_getclock (), |
122 | .IR pthread_condattr_setclock (), | |
949f13d2 | 123 | .IR clock_nanosleep (). |
fea681da | 124 | .in -4 |
949f13d2 | 125 | |
fea681da | 126 | .fi |
949f13d2 MK |
127 | If |
128 | .B CLOCK_REALTIME | |
129 | is changed by the function | |
63aa9df0 | 130 | .IR clock_settime (), |
fea681da | 131 | then this affects all timers set for an absolute time. |
73d8cece | 132 | .SS CPT - _POSIX_CPUTIME - _SC_CPUTIME |
fea681da MK |
133 | The clockID CLOCK_PROCESS_CPUTIME_ID is supported. |
134 | The initial value of this clock is 0 for each process. | |
8c4f34f8 MK |
135 | This option implies the |
136 | .B _POSIX_TIMERS | |
137 | option. | |
fea681da | 138 | The function |
63aa9df0 | 139 | .IR clock_getcpuclockid () |
fea681da | 140 | is present. |
d282bb24 | 141 | .\" .SS FD |
fea681da | 142 | .\" Fortran development |
d282bb24 | 143 | .\" .SS FR |
fea681da | 144 | .\" Fortran runtime |
73d8cece | 145 | .SS --- - _POSIX_FILE_LOCKING - _SC_FILE_LOCKING |
c13182ef MK |
146 | This option has been deleted. |
147 | Not in final XPG6. | |
b072a788 | 148 | .SS FSC - _POSIX_FSYNC - _SC_FSYNC |
fea681da | 149 | The function |
63aa9df0 | 150 | .IR fsync () |
fea681da | 151 | is present. |
73d8cece | 152 | .SS IP6 - _POSIX_IPV6 - _SC_IPV6 |
fea681da | 153 | Internet Protocol Version 6 is supported. |
73d8cece | 154 | .SS --- - _POSIX_JOB_CONTROL - _SC_JOB_CONTROL |
aa17b6e7 | 155 | If this option is in effect (as it always is under POSIX.1-2001), |
949f13d2 MK |
156 | then the system implements POSIX-style job control, |
157 | and the following functions are present: | |
fea681da MK |
158 | .br |
159 | .nf | |
160 | .in +4 | |
949f13d2 | 161 | |
63aa9df0 MK |
162 | .IR setpgid (), |
163 | .IR tcdrain (), | |
164 | .IR tcflush (), | |
165 | .IR tcgetpgrp (), | |
166 | .IR tcsendbreak (), | |
167 | .IR tcsetattr (), | |
949f13d2 | 168 | .IR tcsetpgrp (). |
fea681da | 169 | .in -4 |
fea681da | 170 | .fi |
73d8cece | 171 | .SS MF - _POSIX_MAPPED_FILES - _SC_MAPPED_FILES |
c13182ef MK |
172 | Shared memory is supported. |
173 | The include file | |
fea681da | 174 | .I <sys/mman.h> |
c13182ef | 175 | is present. |
949f13d2 | 176 | The following functions are present: |
63aa9df0 MK |
177 | .IR mmap (), |
178 | .IR msync (), | |
949f13d2 | 179 | .IR munmap (). |
73d8cece | 180 | .SS ML - _POSIX_MEMLOCK - _SC_MEMLOCK |
c13182ef MK |
181 | Shared memory can be locked into core. |
182 | The functions | |
63aa9df0 MK |
183 | .IR mlockall (), |
184 | .IR munlockall () | |
fea681da | 185 | are present. |
73d8cece | 186 | .SS MR/MLR - _POSIX_MEMLOCK_RANGE - _SC_MEMLOCK_RANGE |
c13182ef MK |
187 | More precisely, ranges can be locked into core. |
188 | The functions | |
63aa9df0 MK |
189 | .IR mlock (), |
190 | .IR munlock () | |
fea681da | 191 | are present. |
73d8cece | 192 | .SS MPR - _POSIX_MEMORY_PROTECTION - _SC_MEMORY_PROTECTION |
fea681da | 193 | The function |
63aa9df0 | 194 | .IR mprotect () |
fea681da | 195 | is present. |
73d8cece | 196 | .SS MSG - _POSIX_MESSAGE_PASSING - _SC_MESSAGE_PASSING |
fea681da | 197 | The include file |
0daa9e92 | 198 | .I <mqueue.h> |
c13182ef | 199 | is present. |
949f13d2 | 200 | The following functions are present: |
fea681da MK |
201 | .br |
202 | .nf | |
203 | .in +4 | |
949f13d2 | 204 | |
63aa9df0 MK |
205 | .IR mq_close (), |
206 | .IR mq_getattr (), | |
207 | .IR mq_notify (), | |
208 | .IR mq_open (), | |
209 | .IR mq_receive (), | |
210 | .IR mq_send (), | |
211 | .IR mq_setattr (), | |
949f13d2 | 212 | .IR mq_unlink (). |
fea681da MK |
213 | .br |
214 | .in -4 | |
215 | .fi | |
73d8cece | 216 | .SS MON - _POSIX_MONOTONIC_CLOCK - _SC_MONOTONIC_CLOCK |
8c4f34f8 MK |
217 | .B CLOCK_MONOTONIC |
218 | is supported. | |
219 | This option implies the | |
220 | .B _POSIX_TIMERS | |
221 | option. | |
fea681da | 222 | Affected functions are |
c7496b03 | 223 | .nf |
fea681da | 224 | .in +4 |
949f13d2 | 225 | |
63aa9df0 MK |
226 | .IR aio_suspend (), |
227 | .IR clock_getres (), | |
228 | .IR clock_gettime (), | |
229 | .IR clock_settime (), | |
230 | .IR timer_create (). | |
fea681da MK |
231 | .in -4 |
232 | .fi | |
73d8cece | 233 | .SS --- - _POSIX_MULTI_PROCESS - _SC_MULTI_PROCESS |
c13182ef MK |
234 | This option has been deleted. |
235 | Not in final XPG6. | |
d282bb24 | 236 | .\" .SS MX |
fea681da | 237 | .\" IEC 60559 Floating-Point Option. |
73d8cece | 238 | .SS --- - _POSIX_NO_TRUNC |
4dec66f9 | 239 | If this option is in effect (as it always is under POSIX.1-2001) |
8c4f34f8 MK |
240 | then pathname components longer than |
241 | .B NAME_MAX | |
242 | are not truncated, | |
fea681da MK |
243 | but give an error. |
244 | This property may be dependent on the path prefix of the component. | |
73d8cece | 245 | .SS PIO - _POSIX_PRIORITIZED_IO - _SC_PRIORITIZED_IO |
fea681da MK |
246 | This option says that one can specify priorities for asynchronous I/O. |
247 | This affects the functions | |
248 | .br | |
249 | .nf | |
250 | .in +4 | |
949f13d2 | 251 | |
63aa9df0 MK |
252 | .IR aio_read (), |
253 | .IR aio_write (). | |
fea681da MK |
254 | .in -4 |
255 | .fi | |
73d8cece | 256 | .SS PS - _POSIX_PRIORITY_SCHEDULING - _SC_PRIORITY_SCHEDULING |
fea681da MK |
257 | The include file |
258 | .I <sched.h> | |
c13182ef | 259 | is present. |
949f13d2 | 260 | The following functions are present: |
fea681da MK |
261 | .br |
262 | .nf | |
263 | .in +4 | |
949f13d2 | 264 | |
63aa9df0 MK |
265 | .IR sched_get_priority_max (), |
266 | .IR sched_get_priority_min (), | |
267 | .IR sched_getparam (), | |
268 | .IR sched_getscheduler (), | |
269 | .IR sched_rr_get_interval (), | |
270 | .IR sched_setparam (), | |
271 | .IR sched_setscheduler (), | |
949f13d2 | 272 | .IR sched_yield (). |
fea681da | 273 | .in -4 |
949f13d2 | 274 | |
fea681da | 275 | .fi |
8c4f34f8 MK |
276 | If also |
277 | .B _POSIX_SPAWN | |
949f13d2 | 278 | is in effect, then the following functions are present: |
fea681da MK |
279 | .br |
280 | .nf | |
281 | .in +4 | |
949f13d2 | 282 | |
63aa9df0 MK |
283 | .IR posix_spawnattr_getschedparam (), |
284 | .IR posix_spawnattr_getschedpolicy (), | |
285 | .IR posix_spawnattr_setschedparam (), | |
949f13d2 | 286 | .IR posix_spawnattr_setschedpolicy (). |
fea681da | 287 | .in -4 |
fea681da | 288 | .fi |
73d8cece | 289 | .SS RS - _POSIX_RAW_SOCKETS |
c13182ef MK |
290 | Raw sockets are supported. |
291 | Affected functions are | |
63aa9df0 MK |
292 | .IR getsockopt (), |
293 | .IR setsockopt (). | |
73d8cece | 294 | .SS --- - _POSIX_READER_WRITER_LOCKS - _SC_READER_WRITER_LOCKS |
8c4f34f8 MK |
295 | This option implies the |
296 | .B _POSIX_THREADS | |
297 | option. | |
c13182ef | 298 | Conversely, |
8c4f34f8 MK |
299 | under POSIX.1-2001 the |
300 | .B _POSIX_THREADS | |
301 | option implies this option. | |
fea681da | 302 | .nf |
949f13d2 | 303 | The following functions are present: |
fea681da | 304 | .in +4 |
949f13d2 | 305 | |
63aa9df0 MK |
306 | .IR pthread_rwlock_destroy (), |
307 | .IR pthread_rwlock_init (), | |
308 | .IR pthread_rwlock_rdlock (), | |
309 | .IR pthread_rwlock_tryrdlock (), | |
310 | .IR pthread_rwlock_trywrlock (), | |
311 | .IR pthread_rwlock_unlock (), | |
312 | .IR pthread_rwlock_wrlock (), | |
313 | .IR pthread_rwlockattr_destroy (), | |
949f13d2 | 314 | .IR pthread_rwlockattr_init (). |
fea681da | 315 | .in -4 |
fea681da | 316 | .fi |
73d8cece | 317 | .SS RTS - _POSIX_REALTIME_SIGNALS - _SC_REALTIME_SIGNALS |
c13182ef | 318 | Realtime signals are supported. |
949f13d2 | 319 | The following functions are present: |
fea681da MK |
320 | .br |
321 | .nf | |
322 | .in +4 | |
949f13d2 | 323 | |
63aa9df0 MK |
324 | .IR sigqueue (), |
325 | .IR sigtimedwait (), | |
949f13d2 | 326 | .IR sigwaitinfo (). |
fea681da MK |
327 | .br |
328 | .in -4 | |
329 | .fi | |
73d8cece | 330 | .SS --- - _POSIX_REGEXP - _SC_REGEXP |
4dec66f9 | 331 | If this option is in effect (as it always is under POSIX.1-2001) |
949f13d2 MK |
332 | then POSIX regular expressions are supported |
333 | and the following functions are present: | |
fea681da MK |
334 | .br |
335 | .nf | |
336 | .in +4 | |
949f13d2 | 337 | |
63aa9df0 MK |
338 | .IR regcomp (), |
339 | .IR regerror (), | |
340 | .IR regexec (), | |
949f13d2 | 341 | .IR regfree (). |
fea681da MK |
342 | .br |
343 | .in -4 | |
344 | .fi | |
73d8cece | 345 | .SS --- - _POSIX_SAVED_IDS - _SC_SAVED_IDS |
9b6d6dcc | 346 | If this option is in effect (as it always is under POSIX.1-2001), |
fea681da MK |
347 | then a process has a saved set-user-ID and a saved set-group-ID. |
348 | Affected functions are | |
349 | .br | |
350 | .nf | |
351 | .in +4 | |
949f13d2 | 352 | |
63aa9df0 MK |
353 | .IR exec (), |
354 | .IR kill (), | |
355 | .IR seteuid (), | |
356 | .IR setegid (), | |
357 | .IR setgid (), | |
358 | .IR setuid (). | |
fea681da MK |
359 | .br |
360 | .in -4 | |
361 | .fi | |
d282bb24 | 362 | .\" .SS SD |
fea681da | 363 | .\" Software development |
73d8cece | 364 | .SS SEM - _POSIX_SEMAPHORES - _SC_SEMAPHORES |
fea681da MK |
365 | The include file |
366 | .I <semaphore.h> | |
367 | is present. | |
949f13d2 | 368 | The following functions are present: |
fea681da MK |
369 | .br |
370 | .nf | |
371 | .in +4 | |
949f13d2 | 372 | |
63aa9df0 MK |
373 | .IR sem_close (), |
374 | .IR sem_destroy (), | |
375 | .IR sem_getvalue (), | |
376 | .IR sem_init (), | |
377 | .IR sem_open (), | |
378 | .IR sem_post (), | |
379 | .IR sem_trywait (), | |
380 | .IR sem_unlink (), | |
949f13d2 | 381 | .IR sem_wait (). |
fea681da MK |
382 | .br |
383 | .in -4 | |
384 | .fi | |
73d8cece | 385 | .SS SHM - _POSIX_SHARED_MEMORY_OBJECTS - _SC_SHARED_MEMORY_OBJECTS |
949f13d2 | 386 | The following functions are present: |
fea681da MK |
387 | .br |
388 | .nf | |
389 | .in +4 | |
949f13d2 | 390 | |
63aa9df0 MK |
391 | .IR mmap (), |
392 | .IR munmap (), | |
393 | .IR shm_open (), | |
949f13d2 | 394 | .IR shm_unlink (). |
fea681da MK |
395 | .br |
396 | .in -4 | |
397 | .fi | |
73d8cece | 398 | .SS --- - _POSIX_SHELL - _SC_SHELL |
4dec66f9 | 399 | If this option is in effect (as it always is under POSIX.1-2001), |
fea681da | 400 | the function |
63aa9df0 | 401 | .IR system () |
fea681da | 402 | is present. |
73d8cece | 403 | .SS SPN - _POSIX_SPAWN - _SC_SPAWN |
fea681da MK |
404 | This option describes support for process creation in a context where |
405 | it is difficult or impossible to use | |
63aa9df0 | 406 | .IR fork (), |
75b94dc3 | 407 | for example, because no MMU is present. |
8c4f34f8 MK |
408 | If |
409 | .B _POSIX_SPAWN | |
410 | is in effect, then the include file | |
fea681da | 411 | .I <spawn.h> |
949f13d2 | 412 | and the following functions are present: |
fea681da MK |
413 | .br |
414 | .nf | |
415 | .in +4 | |
949f13d2 | 416 | |
63aa9df0 MK |
417 | .IR posix_spawn (), |
418 | .IR posix_spawn_file_actions_addclose (), | |
419 | .IR posix_spawn_file_actions_adddup2 (), | |
420 | .IR posix_spawn_file_actions_addopen (), | |
421 | .IR posix_spawn_file_actions_destroy (), | |
422 | .IR posix_spawn_file_actions_init (), | |
423 | .IR posix_spawnattr_destroy (), | |
424 | .IR posix_spawnattr_getsigdefault (), | |
425 | .IR posix_spawnattr_getflags (), | |
426 | .IR posix_spawnattr_getpgroup (), | |
427 | .IR posix_spawnattr_getsigmask (), | |
428 | .IR posix_spawnattr_init (), | |
429 | .IR posix_spawnattr_setsigdefault (), | |
430 | .IR posix_spawnattr_setflags (), | |
431 | .IR posix_spawnattr_setpgroup (), | |
432 | .IR posix_spawnattr_setsigmask (), | |
949f13d2 | 433 | .IR posix_spawnp (). |
fea681da MK |
434 | .in -4 |
435 | .br | |
436 | .fi | |
8c4f34f8 MK |
437 | If also |
438 | .B _POSIX_PRIORITY_SCHEDULING | |
439 | is in effect, then | |
949f13d2 | 440 | the following functions are present: |
fea681da MK |
441 | .br |
442 | .nf | |
443 | .in +4 | |
949f13d2 | 444 | |
63aa9df0 MK |
445 | .IR posix_spawnattr_getschedparam (), |
446 | .IR posix_spawnattr_getschedpolicy (), | |
447 | .IR posix_spawnattr_setschedparam (), | |
949f13d2 | 448 | .IR posix_spawnattr_setschedpolicy (). |
fea681da | 449 | .in -4 |
fea681da | 450 | .fi |
73d8cece | 451 | .SS SPI - _POSIX_SPIN_LOCKS - _SC_SPIN_LOCKS |
8c4f34f8 MK |
452 | This option implies the |
453 | .B _POSIX_THREADS | |
454 | and | |
455 | .B _POSIX_THREAD_SAFE_FUNCTIONS | |
456 | options. | |
949f13d2 | 457 | The following functions are present: |
fea681da MK |
458 | .br |
459 | .nf | |
460 | .in +4 | |
949f13d2 | 461 | |
63aa9df0 MK |
462 | .IR pthread_spin_destroy (), |
463 | .IR pthread_spin_init (), | |
464 | .IR pthread_spin_lock (), | |
465 | .IR pthread_spin_trylock (), | |
949f13d2 | 466 | .IR pthread_spin_unlock (). |
fea681da MK |
467 | .in -4 |
468 | .br | |
469 | .fi | |
73d8cece | 470 | .SS SS - _POSIX_SPORADIC_SERVER - _SC_SPORADIC_SERVER |
8c4f34f8 MK |
471 | The scheduling policy |
472 | .B SCHED_SPORADIC | |
473 | is supported. | |
474 | This option implies the | |
475 | .B _POSIX_PRIORITY_SCHEDULING | |
476 | option. | |
fea681da MK |
477 | Affected functions are |
478 | .br | |
479 | .nf | |
480 | .in +4 | |
949f13d2 | 481 | |
63aa9df0 MK |
482 | .IR sched_setparam (), |
483 | .IR sched_setscheduler (). | |
fea681da MK |
484 | .in -4 |
485 | .br | |
486 | .fi | |
73d8cece | 487 | .SS SIO - _POSIX_SYNCHRONIZED_IO - _SC_SYNCHRONIZED_IO |
fea681da | 488 | Affected functions are |
63aa9df0 MK |
489 | .IR open (), |
490 | .IR msync (), | |
491 | .IR fsync (), | |
492 | .IR fdatasync (). | |
73d8cece | 493 | .SS TSA - _POSIX_THREAD_ATTR_STACKADDR - _SC_THREAD_ATTR_STACKADDR |
fea681da MK |
494 | Affected functions are |
495 | .br | |
496 | .nf | |
497 | .in +4 | |
949f13d2 | 498 | |
63aa9df0 MK |
499 | .IR pthread_attr_getstack (), |
500 | .IR pthread_attr_getstackaddr (), | |
501 | .IR pthread_attr_setstack (), | |
502 | .IR pthread_attr_setstackaddr (). | |
fea681da MK |
503 | .in -4 |
504 | .br | |
505 | .fi | |
73d8cece | 506 | .SS TSS - _POSIX_THREAD_ATTR_STACKSIZE - _SC_THREAD_ATTR_STACKSIZE |
fea681da MK |
507 | Affected functions are |
508 | .br | |
509 | .nf | |
510 | .in +4 | |
949f13d2 | 511 | |
63aa9df0 MK |
512 | .IR pthread_attr_getstack (), |
513 | .IR pthread_attr_getstacksize (), | |
514 | .IR pthread_attr_setstack (), | |
515 | .IR pthread_attr_setstacksize (). | |
fea681da MK |
516 | .in -4 |
517 | .br | |
518 | .fi | |
73d8cece | 519 | .SS TCT - _POSIX_THREAD_CPUTIME - _SC_THREAD_CPUTIME |
fea681da | 520 | The clockID CLOCK_THREAD_CPUTIME_ID is supported. |
8c4f34f8 MK |
521 | This option implies the |
522 | .B _POSIX_TIMERS | |
523 | option. | |
fea681da MK |
524 | Affected functions are |
525 | .br | |
526 | .nf | |
527 | .in +4 | |
949f13d2 | 528 | |
63aa9df0 MK |
529 | .IR pthread_getcpuclockid (), |
530 | .IR clock_getres (), | |
531 | .IR clock_gettime (), | |
532 | .IR clock_settime (), | |
533 | .IR timer_create (). | |
fea681da MK |
534 | .in -4 |
535 | .br | |
536 | .fi | |
73d8cece | 537 | .SS TPI - _POSIX_THREAD_PRIO_INHERIT - _SC_THREAD_PRIO_INHERIT |
fea681da MK |
538 | Affected functions are |
539 | .br | |
540 | .nf | |
541 | .in +4 | |
949f13d2 | 542 | |
63aa9df0 MK |
543 | .IR pthread_mutexattr_getprotocol (), |
544 | .IR pthread_mutexattr_setprotocol (). | |
fea681da MK |
545 | .in -4 |
546 | .br | |
547 | .fi | |
73d8cece | 548 | .SS TPP - _POSIX_THREAD_PRIO_PROTECT - _SC_THREAD_PRIO_PROTECT |
fea681da MK |
549 | Affected functions are |
550 | .br | |
551 | .nf | |
552 | .in +4 | |
949f13d2 | 553 | |
63aa9df0 MK |
554 | .IR pthread_mutex_getprioceiling (), |
555 | .IR pthread_mutex_setprioceiling (), | |
556 | .IR pthread_mutexattr_getprioceiling (), | |
557 | .IR pthread_mutexattr_getprotocol (), | |
558 | .IR pthread_mutexattr_setprioceiling (), | |
559 | .IR pthread_mutexattr_setprotocol (). | |
fea681da MK |
560 | .in -4 |
561 | .br | |
562 | .fi | |
73d8cece | 563 | .SS TPS - _POSIX_THREAD_PRIORITY_SCHEDULING - _SC_THREAD_PRIORITY_SCHEDULING |
fea681da MK |
564 | If this option is in effect, the different threads inside a process |
565 | can run with different priorities and/or different schedulers. | |
566 | Affected functions are | |
567 | .br | |
568 | .nf | |
569 | .in +4 | |
949f13d2 | 570 | |
63aa9df0 MK |
571 | .IR pthread_attr_getinheritsched (), |
572 | .IR pthread_attr_getschedpolicy (), | |
573 | .IR pthread_attr_getscope (), | |
574 | .IR pthread_attr_setinheritsched (), | |
575 | .IR pthread_attr_setschedpolicy (), | |
576 | .IR pthread_attr_setscope (), | |
577 | .IR pthread_getschedparam (), | |
578 | .IR pthread_setschedparam (), | |
579 | .IR pthread_setschedprio (). | |
fea681da MK |
580 | .in -4 |
581 | .br | |
582 | .fi | |
73d8cece | 583 | .SS TSH - _POSIX_THREAD_PROCESS_SHARED - _SC_THREAD_PROCESS_SHARED |
fea681da MK |
584 | Affected functions are |
585 | .br | |
586 | .nf | |
587 | .in +4 | |
949f13d2 | 588 | |
63aa9df0 MK |
589 | .IR pthread_barrierattr_getpshared (), |
590 | .IR pthread_barrierattr_setpshared (), | |
591 | .IR pthread_condattr_getpshared (), | |
592 | .IR pthread_condattr_setpshared (), | |
593 | .IR pthread_mutexattr_getpshared (), | |
594 | .IR pthread_mutexattr_setpshared (), | |
595 | .IR pthread_rwlockattr_getpshared (), | |
596 | .IR pthread_rwlockattr_setpshared (). | |
fea681da MK |
597 | .in -4 |
598 | .br | |
599 | .fi | |
73d8cece | 600 | .SS TSF - _POSIX_THREAD_SAFE_FUNCTIONS - _SC_THREAD_SAFE_FUNCTIONS |
fea681da MK |
601 | Affected functions are |
602 | .br | |
603 | .nf | |
604 | .in +4 | |
949f13d2 | 605 | |
63aa9df0 MK |
606 | .IR readdir_r (), |
607 | .IR getgrgid_r (), | |
608 | .IR getgrnam_r (), | |
609 | .IR getpwnam_r (), | |
610 | .IR getpwuid_r (), | |
611 | .IR flockfile (), | |
612 | .IR ftrylockfile (), | |
613 | .IR funlockfile (), | |
614 | .IR getc_unlocked (), | |
615 | .IR getchar_unlocked (), | |
616 | .IR putc_unlocked (), | |
617 | .IR putchar_unlocked (), | |
618 | .IR rand_r (), | |
619 | .IR strerror_r (), | |
620 | .IR strtok_r (), | |
621 | .IR asctime_r (), | |
622 | .IR ctime_r (), | |
623 | .IR gmtime_r (), | |
624 | .IR localtime_r (). | |
fea681da MK |
625 | .in -4 |
626 | .br | |
627 | .fi | |
73d8cece | 628 | .SS TSP - _POSIX_THREAD_SPORADIC_SERVER - _SC_THREAD_SPORADIC_SERVER |
8c4f34f8 MK |
629 | This option implies the |
630 | .B _POSIX_THREAD_PRIORITY_SCHEDULING | |
631 | option. | |
fea681da MK |
632 | Affected functions are |
633 | .br | |
634 | .nf | |
635 | .in +4 | |
949f13d2 | 636 | |
63aa9df0 MK |
637 | .IR sched_getparam (), |
638 | .IR sched_setparam (), | |
639 | .IR sched_setscheduler (). | |
fea681da MK |
640 | .in -4 |
641 | .br | |
642 | .fi | |
73d8cece | 643 | .SS THR - _POSIX_THREADS - _SC_THREADS |
c13182ef | 644 | Basic support for POSIX threads is available. |
949f13d2 | 645 | The following functions are present: |
fea681da MK |
646 | .br |
647 | .nf | |
648 | .in +4 | |
949f13d2 | 649 | |
63aa9df0 MK |
650 | .IR pthread_atfork (), |
651 | .IR pthread_attr_destroy (), | |
652 | .IR pthread_attr_getdetachstate (), | |
653 | .IR pthread_attr_getschedparam (), | |
654 | .IR pthread_attr_init (), | |
655 | .IR pthread_attr_setdetachstate (), | |
656 | .IR pthread_attr_setschedparam (), | |
657 | .IR pthread_cancel (), | |
658 | .IR pthread_cleanup_push (), | |
659 | .IR pthread_cleanup_pop (), | |
660 | .IR pthread_cond_broadcast (), | |
661 | .IR pthread_cond_destroy (), | |
662 | .IR pthread_cond_init (), | |
663 | .IR pthread_cond_signal (), | |
664 | .IR pthread_cond_timedwait (), | |
665 | .IR pthread_cond_wait (), | |
666 | .IR pthread_condattr_destroy (), | |
667 | .IR pthread_condattr_init (), | |
668 | .IR pthread_create (), | |
669 | .IR pthread_detach (), | |
670 | .IR pthread_equal (), | |
671 | .IR pthread_exit (), | |
672 | .IR pthread_getspecific (), | |
a3fc9c0f | 673 | .IR pthread_join (), |
63aa9df0 MK |
674 | .IR pthread_key_create (), |
675 | .IR pthread_key_delete (), | |
676 | .IR pthread_mutex_destroy (), | |
677 | .IR pthread_mutex_init (), | |
678 | .IR pthread_mutex_lock (), | |
679 | .IR pthread_mutex_trylock (), | |
680 | .IR pthread_mutex_unlock (), | |
681 | .IR pthread_mutexattr_destroy (), | |
682 | .IR pthread_mutexattr_init (), | |
683 | .IR pthread_once (), | |
684 | .IR pthread_rwlock_destroy (), | |
685 | .IR pthread_rwlock_init (), | |
686 | .IR pthread_rwlock_rdlock (), | |
687 | .IR pthread_rwlock_tryrdlock (), | |
688 | .IR pthread_rwlock_trywrlock (), | |
689 | .IR pthread_rwlock_unlock (), | |
690 | .IR pthread_rwlock_wrlock (), | |
691 | .IR pthread_rwlockattr_destroy (), | |
692 | .IR pthread_rwlockattr_init (), | |
693 | .IR pthread_self (), | |
694 | .IR pthread_setcancelstate (), | |
695 | .IR pthread_setcanceltype (), | |
696 | .IR pthread_setspecific (), | |
949f13d2 | 697 | .IR pthread_testcancel (). |
fea681da MK |
698 | .in -4 |
699 | .br | |
700 | .fi | |
73d8cece | 701 | .SS TMO - _POSIX_TIMEOUTS - _SC_TIMEOUTS |
949f13d2 | 702 | The following functions are present: |
fea681da MK |
703 | .br |
704 | .nf | |
705 | .in +4 | |
949f13d2 | 706 | |
63aa9df0 MK |
707 | .IR mq_timedreceive (), |
708 | .IR mq_timedsend (), | |
709 | .IR pthread_mutex_timedlock (), | |
710 | .IR pthread_rwlock_timedrdlock (), | |
711 | .IR pthread_rwlock_timedwrlock (), | |
712 | .IR sem_timedwait (), | |
949f13d2 | 713 | .IR posix_trace_timedgetnext_event (). |
fea681da MK |
714 | .in -4 |
715 | .br | |
716 | .fi | |
73d8cece | 717 | .SS TMR - _POSIX_TIMERS - _SC_TIMERS |
949f13d2 | 718 | The following functions are present: |
fea681da MK |
719 | .br |
720 | .nf | |
721 | .in +4 | |
949f13d2 | 722 | |
63aa9df0 MK |
723 | .IR clock_getres (), |
724 | .IR clock_gettime (), | |
725 | .IR clock_settime (), | |
726 | .IR nanosleep (), | |
727 | .IR timer_create (), | |
728 | .IR timer_delete (), | |
729 | .IR timer_gettime (), | |
730 | .IR timer_getoverrun (), | |
949f13d2 | 731 | .IR timer_settime (). |
fea681da MK |
732 | .in -4 |
733 | .br | |
734 | .fi | |
73d8cece | 735 | .SS TRC - _POSIX_TRACE - _SC_TRACE |
c13182ef | 736 | POSIX tracing is available. |
949f13d2 | 737 | The following functions are present: |
fea681da MK |
738 | .br |
739 | .nf | |
740 | .in +4 | |
949f13d2 | 741 | |
63aa9df0 MK |
742 | .IR posix_trace_attr_destroy (), |
743 | .IR posix_trace_attr_getclockres (), | |
744 | .IR posix_trace_attr_getcreatetime (), | |
745 | .IR posix_trace_attr_getgenversion (), | |
746 | .IR posix_trace_attr_getmaxdatasize (), | |
747 | .IR posix_trace_attr_getmaxsystemeventsize (), | |
748 | .IR posix_trace_attr_getmaxusereventsize (), | |
749 | .IR posix_trace_attr_getname (), | |
750 | .IR posix_trace_attr_getstreamfullpolicy (), | |
751 | .IR posix_trace_attr_getstreamsize (), | |
752 | .IR posix_trace_attr_init (), | |
753 | .IR posix_trace_attr_setmaxdatasize (), | |
754 | .IR posix_trace_attr_setname (), | |
755 | .IR posix_trace_attr_setstreamsize (), | |
756 | .IR posix_trace_attr_setstreamfullpolicy (), | |
757 | .IR posix_trace_clear (), | |
758 | .IR posix_trace_create (), | |
759 | .IR posix_trace_event (), | |
760 | .IR posix_trace_eventid_equal (), | |
761 | .IR posix_trace_eventid_get_name (), | |
762 | .IR posix_trace_eventid_open (), | |
763 | .IR posix_trace_eventtypelist_getnext_id (), | |
764 | .IR posix_trace_eventtypelist_rewind (), | |
765 | .IR posix_trace_flush (), | |
766 | .IR posix_trace_get_attr (), | |
767 | .IR posix_trace_get_status (), | |
768 | .IR posix_trace_getnext_event (), | |
769 | .IR posix_trace_shutdown (), | |
770 | .IR posix_trace_start (), | |
771 | .IR posix_trace_stop (), | |
949f13d2 | 772 | .IR posix_trace_trygetnext_event (). |
fea681da MK |
773 | .in -4 |
774 | .br | |
775 | .fi | |
73d8cece | 776 | .SS TEF - _POSIX_TRACE_EVENT_FILTER - _SC_TRACE_EVENT_FILTER |
8c4f34f8 MK |
777 | This option implies the |
778 | .B _POSIX_TRACE | |
779 | option. | |
949f13d2 | 780 | The following functions are present: |
fea681da MK |
781 | .br |
782 | .nf | |
783 | .in +4 | |
949f13d2 | 784 | |
63aa9df0 MK |
785 | .IR posix_trace_eventset_add (), |
786 | .IR posix_trace_eventset_del (), | |
787 | .IR posix_trace_eventset_empty (), | |
788 | .IR posix_trace_eventset_fill (), | |
789 | .IR posix_trace_eventset_ismember (), | |
790 | .IR posix_trace_get_filter (), | |
791 | .IR posix_trace_set_filter (), | |
949f13d2 | 792 | .IR posix_trace_trid_eventid_open (). |
fea681da MK |
793 | .in -4 |
794 | .br | |
795 | .fi | |
73d8cece | 796 | .SS TRI - _POSIX_TRACE_INHERIT - _SC_TRACE_INHERIT |
fea681da | 797 | Tracing children of the traced process is supported. |
8c4f34f8 MK |
798 | This option implies the |
799 | .B _POSIX_TRACE | |
800 | option. | |
949f13d2 | 801 | The following functions are present: |
fea681da MK |
802 | .br |
803 | .nf | |
804 | .in +4 | |
949f13d2 | 805 | |
63aa9df0 | 806 | .IR posix_trace_attr_getinherited (), |
949f13d2 | 807 | .IR posix_trace_attr_setinherited (). |
fea681da MK |
808 | .in -4 |
809 | .br | |
810 | .fi | |
73d8cece | 811 | .SS TRL - _POSIX_TRACE_LOG - _SC_TRACE_LOG |
8c4f34f8 MK |
812 | This option implies the |
813 | .B _POSIX_TRACE | |
814 | option. | |
949f13d2 | 815 | The following functions are present: |
fea681da MK |
816 | .br |
817 | .nf | |
818 | .in +4 | |
949f13d2 | 819 | |
63aa9df0 MK |
820 | .IR posix_trace_attr_getlogfullpolicy (), |
821 | .IR posix_trace_attr_getlogsize (), | |
822 | .IR posix_trace_attr_setlogfullpolicy (), | |
823 | .IR posix_trace_attr_setlogsize (), | |
824 | .IR posix_trace_close (), | |
825 | .IR posix_trace_create_withlog (), | |
826 | .IR posix_trace_open (), | |
949f13d2 | 827 | .IR posix_trace_rewind (). |
fea681da MK |
828 | .in -4 |
829 | .br | |
830 | .fi | |
73d8cece | 831 | .SS TYM - _POSIX_TYPED_MEMORY_OBJECTS - _SC_TYPED_MEMORY_OBJECT |
949f13d2 | 832 | The following functions are present: |
fea681da MK |
833 | .br |
834 | .nf | |
835 | .in +4 | |
949f13d2 | 836 | |
63aa9df0 MK |
837 | .IR posix_mem_offset (), |
838 | .IR posix_typed_mem_get_info (), | |
949f13d2 | 839 | .IR posix_typed_mem_open (). |
fea681da MK |
840 | .in -4 |
841 | .br | |
842 | .fi | |
73d8cece | 843 | .SS --- - _POSIX_VDISABLE |
c13182ef MK |
844 | Always present (probably 0). |
845 | Value to set a changeable special control | |
1954b6a9 | 846 | character to indicate that it is disabled. |
47297adb | 847 | .SH XOPEN EXTENSIONS |
fea681da MK |
848 | .BR _XOPEN_CRYPT , |
849 | .BR _XOPEN_LEGACY , | |
850 | .BR _XOPEN_REALTIME , | |
851 | .BR _XOPEN_REALTIME_THREADS , | |
852 | .BR _XOPEN_UNIX . | |
fea681da | 853 | .\" To be described. |
47297adb | 854 | .SH SEE ALSO |
2229c7ae MK |
855 | .BR sysconf (3), |
856 | .BR standards (7) |