[8165b48f] | 1 | /* |
---|
[eb5a7e07] | 2 | * $Id$ |
---|
[5e9b32b] | 3 | */ |
---|
| 4 | |
---|
[613cff6] | 5 | #include <assert.h> |
---|
[5e9b32b] | 6 | #include <errno.h> |
---|
| 7 | #include <pthread.h> |
---|
| 8 | #include <limits.h> |
---|
| 9 | |
---|
[f4719d5a] | 10 | #include <rtems/system.h> |
---|
[5a18e04] | 11 | #include <rtems/score/apiext.h> |
---|
[5e9b32b] | 12 | #include <rtems/score/stack.h> |
---|
| 13 | #include <rtems/score/thread.h> |
---|
[5a18e04] | 14 | #include <rtems/score/userext.h> |
---|
| 15 | #include <rtems/score/wkspace.h> |
---|
[5e9b32b] | 16 | #include <rtems/posix/pthread.h> |
---|
[ece8c9a] | 17 | #include <rtems/posix/priority.h> |
---|
[5a18e04] | 18 | #include <rtems/posix/config.h> |
---|
[5e9b32b] | 19 | |
---|
| 20 | /*PAGE |
---|
| 21 | * |
---|
| 22 | * The default pthreads attributes structure. |
---|
| 23 | */ |
---|
| 24 | |
---|
| 25 | const pthread_attr_t _POSIX_Threads_Default_attributes = { |
---|
| 26 | TRUE, /* is_initialized */ |
---|
| 27 | 0, /* stackaddr */ |
---|
| 28 | STACK_MINIMUM_SIZE, /* stacksize */ |
---|
| 29 | PTHREAD_SCOPE_PROCESS, /* contentionscope */ |
---|
| 30 | PTHREAD_INHERIT_SCHED, /* inheritsched */ |
---|
| 31 | SCHED_FIFO, /* schedpolicy */ |
---|
| 32 | { /* schedparam */ |
---|
| 33 | 128, /* sched_priority */ |
---|
| 34 | 0, /* ss_low_priority */ |
---|
| 35 | { 0L, 0 }, /* ss_replenish_period */ |
---|
| 36 | { 0L, 0 } /* ss_initial_budget */ |
---|
| 37 | }, |
---|
| 38 | PTHREAD_CREATE_DETACHED, /* detachstate */ |
---|
| 39 | 1 /* cputime_clock_allowed */ |
---|
| 40 | }; |
---|
| 41 | |
---|
[5a18e04] | 42 | /*PAGE |
---|
| 43 | * |
---|
| 44 | * _POSIX_Threads_Create_extension |
---|
| 45 | * |
---|
| 46 | * XXX |
---|
| 47 | */ |
---|
| 48 | |
---|
| 49 | boolean _POSIX_Threads_Create_extension( |
---|
| 50 | Thread_Control *executing, |
---|
| 51 | Thread_Control *created |
---|
| 52 | ) |
---|
| 53 | { |
---|
| 54 | POSIX_API_Control *api; |
---|
| 55 | |
---|
| 56 | api = _Workspace_Allocate( sizeof( POSIX_API_Control ) ); |
---|
| 57 | |
---|
| 58 | if ( !api ) |
---|
| 59 | return FALSE; |
---|
| 60 | |
---|
| 61 | created->API_Extensions[ THREAD_API_POSIX ] = api; |
---|
| 62 | |
---|
| 63 | /* XXX something should go here */ |
---|
| 64 | |
---|
| 65 | return TRUE; |
---|
| 66 | } |
---|
| 67 | |
---|
| 68 | /*PAGE |
---|
| 69 | * |
---|
| 70 | * _POSIX_Threads_Delete_extension |
---|
| 71 | * |
---|
| 72 | * XXX |
---|
| 73 | */ |
---|
| 74 | |
---|
| 75 | User_extensions_routine _POSIX_Threads_Delete_extension( |
---|
| 76 | Thread_Control *executing, |
---|
| 77 | Thread_Control *deleted |
---|
| 78 | ) |
---|
| 79 | { |
---|
| 80 | (void) _Workspace_Free( deleted->API_Extensions[ THREAD_API_POSIX ] ); |
---|
| 81 | |
---|
| 82 | deleted->API_Extensions[ THREAD_API_POSIX ] = NULL; |
---|
| 83 | } |
---|
| 84 | |
---|
| 85 | /*PAGE |
---|
| 86 | * |
---|
[dd32d883] | 87 | * _POSIX_Threads_Initialize_user_threads |
---|
[5a18e04] | 88 | * |
---|
| 89 | * This routine creates and starts all configured user |
---|
| 90 | * initialzation threads. |
---|
| 91 | * |
---|
| 92 | * Input parameters: NONE |
---|
| 93 | * |
---|
| 94 | * Output parameters: NONE |
---|
| 95 | */ |
---|
| 96 | |
---|
[dd32d883] | 97 | void _POSIX_Threads_Initialize_user_threads( void ) |
---|
[5a18e04] | 98 | { |
---|
[dd32d883] | 99 | int status; |
---|
| 100 | unsigned32 index; |
---|
| 101 | unsigned32 maximum; |
---|
| 102 | posix_initialization_threads_table *user_threads; |
---|
| 103 | pthread_t thread_id; |
---|
| 104 | |
---|
| 105 | user_threads = _POSIX_Threads_User_initialization_threads; |
---|
| 106 | maximum = _POSIX_Threads_Number_of_initialization_threads; |
---|
[613cff6] | 107 | |
---|
[dd32d883] | 108 | if ( !user_threads || maximum == 0 ) |
---|
[613cff6] | 109 | return; |
---|
[5a18e04] | 110 | |
---|
| 111 | for ( index=0 ; index < maximum ; index++ ) { |
---|
[dd32d883] | 112 | status = pthread_create( |
---|
| 113 | &thread_id, |
---|
| 114 | NULL, |
---|
| 115 | user_threads[ index ].entry, |
---|
| 116 | NULL |
---|
| 117 | ); |
---|
[613cff6] | 118 | assert( !status ); |
---|
[5a18e04] | 119 | } |
---|
| 120 | } |
---|
| 121 | |
---|
| 122 | API_extensions_Control _POSIX_Threads_API_extensions = { |
---|
| 123 | { NULL, NULL }, |
---|
| 124 | NULL, /* predriver */ |
---|
[dd32d883] | 125 | _POSIX_Threads_Initialize_user_threads, /* postdriver */ |
---|
[5a18e04] | 126 | NULL, /* post switch */ |
---|
| 127 | }; |
---|
| 128 | |
---|
| 129 | User_extensions_Control _POSIX_Threads_User_extensions = { |
---|
| 130 | { NULL, NULL }, |
---|
| 131 | { _POSIX_Threads_Create_extension, /* create */ |
---|
| 132 | NULL, /* start */ |
---|
| 133 | NULL, /* restart */ |
---|
| 134 | _POSIX_Threads_Delete_extension, /* delete */ |
---|
| 135 | NULL, /* switch */ |
---|
| 136 | NULL, /* begin */ |
---|
| 137 | NULL, /* exitted */ |
---|
| 138 | NULL /* fatal */ |
---|
| 139 | } |
---|
| 140 | }; |
---|
| 141 | |
---|
[5e9b32b] | 142 | /*PAGE |
---|
| 143 | * |
---|
| 144 | * _POSIX_Threads_Manager_initialization |
---|
| 145 | * |
---|
| 146 | * This routine initializes all threads manager related data structures. |
---|
| 147 | * |
---|
| 148 | * Input parameters: |
---|
| 149 | * maximum_pthreads - maximum configured pthreads |
---|
| 150 | * |
---|
| 151 | * Output parameters: NONE |
---|
| 152 | */ |
---|
| 153 | |
---|
| 154 | void _POSIX_Threads_Manager_initialization( |
---|
[dd32d883] | 155 | unsigned32 maximum_pthreads, |
---|
| 156 | unsigned32 number_of_initialization_threads, |
---|
| 157 | posix_initialization_threads_table *user_threads |
---|
[5a18e04] | 158 | |
---|
[5e9b32b] | 159 | ) |
---|
| 160 | { |
---|
[dd32d883] | 161 | _POSIX_Threads_Number_of_initialization_threads = |
---|
| 162 | number_of_initialization_threads; |
---|
| 163 | _POSIX_Threads_User_initialization_threads = user_threads; |
---|
[5a18e04] | 164 | |
---|
[974ff40] | 165 | /* |
---|
| 166 | * There may not be any POSIX initialization threads configured. |
---|
| 167 | */ |
---|
| 168 | |
---|
| 169 | #if 0 |
---|
[dd32d883] | 170 | if ( user_threads == NULL || number_of_initialization_threads == 0 ) |
---|
[5a18e04] | 171 | _Internal_error_Occurred( INTERNAL_ERROR_POSIX_API, TRUE, EINVAL ); |
---|
[974ff40] | 172 | #endif |
---|
[5a18e04] | 173 | |
---|
[5e9b32b] | 174 | _Objects_Initialize_information( |
---|
| 175 | &_POSIX_Threads_Information, |
---|
| 176 | OBJECTS_POSIX_THREADS, |
---|
[ece8c9a] | 177 | FALSE, /* does not support global */ |
---|
[5e9b32b] | 178 | maximum_pthreads, |
---|
| 179 | sizeof( POSIX_Threads_Control ), |
---|
| 180 | TRUE, |
---|
[ece8c9a] | 181 | 5, /* length is arbitrary for now */ |
---|
| 182 | TRUE /* this class is threads */ |
---|
[5e9b32b] | 183 | ); |
---|
[5a18e04] | 184 | |
---|
[613cff6] | 185 | /* |
---|
| 186 | * Add all the extensions for this API |
---|
| 187 | */ |
---|
| 188 | |
---|
| 189 | _User_extensions_Add_API_set( &_POSIX_Threads_User_extensions ); |
---|
| 190 | |
---|
| 191 | _API_extensions_Add( &_POSIX_Threads_API_extensions ); |
---|
| 192 | |
---|
| 193 | /* |
---|
| 194 | * If we supported MP, then here we would ... |
---|
| 195 | * Register the MP Process Packet routine. |
---|
| 196 | */ |
---|
| 197 | |
---|
[5e9b32b] | 198 | } |
---|
| 199 | |
---|
| 200 | /*PAGE |
---|
| 201 | * |
---|
| 202 | * 3.1.3 Register Fork Handlers, P1003.1c/Draft 10, P1003.1c/Draft 10, p. 27 |
---|
[568ebf3] | 203 | * |
---|
| 204 | * RTEMS does not support processes, so we fall under this and do not |
---|
| 205 | * provide this routine: |
---|
| 206 | * |
---|
| 207 | * "Either the implementation shall support the pthread_atfork() function |
---|
| 208 | * as described above or the pthread_atfork() funciton shall not be |
---|
| 209 | * provided." |
---|
[5e9b32b] | 210 | */ |
---|
| 211 | |
---|
| 212 | /*PAGE |
---|
| 213 | * |
---|
| 214 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 215 | */ |
---|
| 216 | |
---|
| 217 | int pthread_attr_setscope( |
---|
| 218 | pthread_attr_t *attr, |
---|
| 219 | int contentionscope |
---|
| 220 | ) |
---|
| 221 | { |
---|
| 222 | if ( !attr || !attr->is_initialized ) |
---|
| 223 | return EINVAL; |
---|
| 224 | |
---|
[e72d995a] | 225 | switch ( contentionscope ) { |
---|
| 226 | case PTHREAD_SCOPE_PROCESS: |
---|
| 227 | case PTHREAD_SCOPE_SYSTEM: |
---|
| 228 | break; |
---|
| 229 | default: |
---|
| 230 | return EINVAL; |
---|
| 231 | } |
---|
| 232 | |
---|
[5e9b32b] | 233 | attr->contentionscope = contentionscope; |
---|
| 234 | return 0; |
---|
| 235 | } |
---|
| 236 | |
---|
| 237 | /*PAGE |
---|
| 238 | * |
---|
| 239 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 240 | */ |
---|
| 241 | |
---|
| 242 | int pthread_attr_getscope( |
---|
| 243 | const pthread_attr_t *attr, |
---|
| 244 | int *contentionscope |
---|
| 245 | ) |
---|
| 246 | { |
---|
| 247 | if ( !attr || !attr->is_initialized ) |
---|
| 248 | return EINVAL; |
---|
| 249 | |
---|
| 250 | *contentionscope = attr->contentionscope; |
---|
| 251 | return 0; |
---|
| 252 | } |
---|
| 253 | |
---|
| 254 | /*PAGE |
---|
| 255 | * |
---|
| 256 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 257 | */ |
---|
| 258 | |
---|
| 259 | int pthread_attr_setinheritsched( |
---|
| 260 | pthread_attr_t *attr, |
---|
| 261 | int inheritsched |
---|
| 262 | ) |
---|
| 263 | { |
---|
| 264 | if ( !attr || !attr->is_initialized ) |
---|
| 265 | return EINVAL; |
---|
| 266 | |
---|
[e72d995a] | 267 | switch ( inheritsched ) { |
---|
| 268 | case PTHREAD_INHERIT_SCHED: |
---|
| 269 | case PTHREAD_EXPLICIT_SCHED: |
---|
| 270 | break; |
---|
| 271 | default: |
---|
| 272 | return EINVAL; |
---|
| 273 | } |
---|
| 274 | |
---|
[5e9b32b] | 275 | attr->inheritsched = inheritsched; |
---|
| 276 | return 0; |
---|
| 277 | } |
---|
| 278 | |
---|
| 279 | /*PAGE |
---|
| 280 | * |
---|
| 281 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 282 | */ |
---|
| 283 | |
---|
| 284 | int pthread_attr_getinheritsched( |
---|
| 285 | const pthread_attr_t *attr, |
---|
| 286 | int *inheritsched |
---|
| 287 | ) |
---|
| 288 | { |
---|
| 289 | if ( !attr || !attr->is_initialized ) |
---|
| 290 | return EINVAL; |
---|
| 291 | |
---|
| 292 | *inheritsched = attr->inheritsched; |
---|
| 293 | return 0; |
---|
| 294 | } |
---|
| 295 | |
---|
| 296 | /*PAGE |
---|
| 297 | * |
---|
| 298 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 299 | */ |
---|
| 300 | |
---|
| 301 | int pthread_attr_setschedpolicy( |
---|
| 302 | pthread_attr_t *attr, |
---|
| 303 | int policy |
---|
| 304 | ) |
---|
| 305 | { |
---|
| 306 | if ( !attr || !attr->is_initialized ) |
---|
| 307 | return EINVAL; |
---|
| 308 | |
---|
| 309 | attr->schedpolicy = policy; |
---|
| 310 | return 0; |
---|
| 311 | } |
---|
| 312 | |
---|
| 313 | /*PAGE |
---|
| 314 | * |
---|
| 315 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 316 | */ |
---|
| 317 | |
---|
| 318 | int pthread_attr_getschedpolicy( |
---|
| 319 | const pthread_attr_t *attr, |
---|
| 320 | int *policy |
---|
| 321 | ) |
---|
| 322 | { |
---|
| 323 | if ( !attr || !attr->is_initialized ) |
---|
| 324 | return EINVAL; |
---|
| 325 | |
---|
| 326 | *policy = attr->schedpolicy; |
---|
| 327 | return 0; |
---|
| 328 | } |
---|
| 329 | |
---|
| 330 | /*PAGE |
---|
| 331 | * |
---|
| 332 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 333 | */ |
---|
| 334 | |
---|
| 335 | int pthread_attr_setschedparam( |
---|
| 336 | pthread_attr_t *attr, |
---|
[f4719d5a] | 337 | const struct sched_param *param |
---|
[5e9b32b] | 338 | ) |
---|
| 339 | { |
---|
| 340 | if ( !attr || !attr->is_initialized ) |
---|
| 341 | return EINVAL; |
---|
| 342 | |
---|
[f4719d5a] | 343 | attr->schedparam = *param; |
---|
[5e9b32b] | 344 | return 0; |
---|
| 345 | } |
---|
| 346 | |
---|
| 347 | /*PAGE |
---|
| 348 | * |
---|
| 349 | * 13.5.1 Thread Creation Scheduling Attributes, P1003.1c/Draft 10, p. 120 |
---|
| 350 | */ |
---|
| 351 | |
---|
| 352 | int pthread_attr_getschedparam( |
---|
| 353 | const pthread_attr_t *attr, |
---|
| 354 | struct sched_param *param |
---|
| 355 | ) |
---|
| 356 | { |
---|
| 357 | if ( !attr || !attr->is_initialized ) |
---|
| 358 | return EINVAL; |
---|
| 359 | |
---|
| 360 | *param = attr->schedparam; |
---|
| 361 | return 0; |
---|
| 362 | } |
---|
| 363 | |
---|
| 364 | /*PAGE |
---|
| 365 | * |
---|
| 366 | * 13.5.2 Dynamic Thread Scheduling Parameters Access, |
---|
| 367 | * P1003.1c/Draft 10, p. 124 |
---|
| 368 | */ |
---|
| 369 | |
---|
| 370 | int pthread_getschedparam( |
---|
| 371 | pthread_t thread, |
---|
| 372 | int *policy, |
---|
| 373 | struct sched_param *param |
---|
| 374 | ) |
---|
| 375 | { |
---|
| 376 | pthread_attr_t *attr; /* XXX: really need to get this from the thread */ |
---|
| 377 | |
---|
| 378 | if ( !policy || !param ) |
---|
| 379 | return EINVAL; |
---|
| 380 | |
---|
| 381 | *policy = attr->schedpolicy; |
---|
| 382 | *param = attr->schedparam; |
---|
| 383 | return 0; |
---|
| 384 | } |
---|
| 385 | |
---|
| 386 | /*PAGE |
---|
| 387 | * |
---|
| 388 | * 13.5.2 Dynamic Thread Scheduling Parameters Access, |
---|
| 389 | * P1003.1c/Draft 10, p. 124 |
---|
| 390 | */ |
---|
| 391 | |
---|
| 392 | int pthread_setschedparam( |
---|
| 393 | pthread_t thread, |
---|
| 394 | int policy, |
---|
| 395 | struct sched_param *param |
---|
| 396 | ) |
---|
| 397 | { |
---|
| 398 | /* XXX need to reschedule after doing this to the thread */ |
---|
| 399 | pthread_attr_t *attr; /* XXX: really need to get this from the thread */ |
---|
| 400 | |
---|
| 401 | if ( !param ) |
---|
| 402 | return EINVAL; |
---|
| 403 | |
---|
| 404 | attr->schedpolicy = policy; |
---|
| 405 | attr->schedparam = *param; |
---|
| 406 | return 0; |
---|
| 407 | } |
---|
| 408 | |
---|
| 409 | /*PAGE |
---|
| 410 | * |
---|
| 411 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 412 | */ |
---|
| 413 | |
---|
| 414 | int pthread_attr_init( |
---|
| 415 | pthread_attr_t *attr |
---|
| 416 | ) |
---|
| 417 | { |
---|
| 418 | if ( !attr ) |
---|
| 419 | return EINVAL; |
---|
| 420 | |
---|
| 421 | *attr = _POSIX_Threads_Default_attributes; |
---|
| 422 | return 0; |
---|
| 423 | } |
---|
| 424 | |
---|
| 425 | /*PAGE |
---|
| 426 | * |
---|
| 427 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 428 | */ |
---|
| 429 | |
---|
| 430 | int pthread_attr_destroy( |
---|
| 431 | pthread_attr_t *attr |
---|
| 432 | ) |
---|
| 433 | { |
---|
| 434 | if ( !attr || !attr->is_initialized ) |
---|
| 435 | return EINVAL; |
---|
| 436 | |
---|
| 437 | attr->is_initialized = FALSE; |
---|
| 438 | return 0; |
---|
| 439 | } |
---|
| 440 | |
---|
| 441 | /*PAGE |
---|
| 442 | * |
---|
| 443 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 444 | */ |
---|
| 445 | |
---|
| 446 | int pthread_attr_getstacksize( |
---|
| 447 | const pthread_attr_t *attr, |
---|
| 448 | size_t *stacksize |
---|
| 449 | ) |
---|
| 450 | { |
---|
| 451 | if ( !attr || !attr->is_initialized ) |
---|
| 452 | return EINVAL; |
---|
| 453 | |
---|
| 454 | *stacksize = attr->stacksize; |
---|
| 455 | return 0; |
---|
| 456 | } |
---|
| 457 | |
---|
| 458 | /*PAGE |
---|
| 459 | * |
---|
| 460 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 461 | */ |
---|
| 462 | |
---|
| 463 | int pthread_attr_setstacksize( |
---|
| 464 | pthread_attr_t *attr, |
---|
| 465 | size_t stacksize |
---|
| 466 | ) |
---|
| 467 | { |
---|
| 468 | if ( !attr || !attr->is_initialized ) |
---|
| 469 | return EINVAL; |
---|
| 470 | |
---|
[9c877c0d] | 471 | if ( stacksize < STACK_MINIMUM_SIZE ) |
---|
| 472 | attr->stacksize = STACK_MINIMUM_SIZE; |
---|
| 473 | else |
---|
| 474 | attr->stacksize = stacksize; |
---|
[5e9b32b] | 475 | return 0; |
---|
| 476 | } |
---|
| 477 | |
---|
| 478 | /*PAGE |
---|
| 479 | * |
---|
| 480 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 481 | */ |
---|
| 482 | |
---|
| 483 | int pthread_attr_getstackaddr( |
---|
| 484 | const pthread_attr_t *attr, |
---|
| 485 | void **stackaddr |
---|
| 486 | ) |
---|
| 487 | { |
---|
| 488 | if ( !attr || !attr->is_initialized ) |
---|
| 489 | return EINVAL; |
---|
| 490 | |
---|
| 491 | *stackaddr = attr->stackaddr; |
---|
| 492 | return 0; |
---|
| 493 | } |
---|
| 494 | |
---|
| 495 | /*PAGE |
---|
| 496 | * |
---|
| 497 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 498 | */ |
---|
| 499 | |
---|
| 500 | int pthread_attr_setstackaddr( |
---|
| 501 | pthread_attr_t *attr, |
---|
| 502 | void *stackaddr |
---|
| 503 | ) |
---|
| 504 | { |
---|
| 505 | if ( !attr || !attr->is_initialized ) |
---|
| 506 | return EINVAL; |
---|
| 507 | |
---|
| 508 | attr->stackaddr = stackaddr; |
---|
| 509 | return 0; |
---|
| 510 | } |
---|
| 511 | |
---|
| 512 | /*PAGE |
---|
| 513 | * |
---|
| 514 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 515 | */ |
---|
| 516 | |
---|
| 517 | int pthread_attr_getdetachstate( |
---|
| 518 | const pthread_attr_t *attr, |
---|
| 519 | int *detachstate |
---|
| 520 | ) |
---|
| 521 | { |
---|
| 522 | if ( !attr || !attr->is_initialized ) |
---|
| 523 | return EINVAL; |
---|
| 524 | |
---|
| 525 | *detachstate = attr->detachstate; |
---|
| 526 | return 0; |
---|
| 527 | } |
---|
| 528 | |
---|
| 529 | /*PAGE |
---|
| 530 | * |
---|
| 531 | * 16.1.1 Thread Creation Attributes, P1003.1c/Draft 10, p, 140 |
---|
| 532 | */ |
---|
| 533 | |
---|
| 534 | int pthread_attr_setdetachstate( |
---|
| 535 | pthread_attr_t *attr, |
---|
| 536 | int detachstate |
---|
| 537 | ) |
---|
| 538 | { |
---|
| 539 | if ( !attr || !attr->is_initialized ) |
---|
| 540 | return EINVAL; |
---|
| 541 | |
---|
| 542 | attr->detachstate = detachstate; |
---|
| 543 | return 0; |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | /*PAGE |
---|
| 547 | * |
---|
| 548 | * 16.1.2 Thread Creation, P1003.1c/Draft 10, p. 144 |
---|
| 549 | */ |
---|
| 550 | |
---|
| 551 | int pthread_create( |
---|
[974ff40] | 552 | pthread_t *thread, |
---|
| 553 | const pthread_attr_t *attr, |
---|
| 554 | void *(*start_routine)( void * ), |
---|
| 555 | void *arg |
---|
[5e9b32b] | 556 | ) |
---|
| 557 | { |
---|
[cfcfdf0] | 558 | const pthread_attr_t *attrp; |
---|
[ece8c9a] | 559 | Priority_Control core_priority; |
---|
| 560 | boolean is_fp; |
---|
| 561 | boolean status; |
---|
| 562 | Thread_Control *the_thread; |
---|
| 563 | char *default_name = "psx"; |
---|
[5a18e04] | 564 | |
---|
[cfcfdf0] | 565 | attrp = (attr) ? attr : &_POSIX_Threads_Default_attributes; |
---|
[5a18e04] | 566 | |
---|
[cfcfdf0] | 567 | if ( !attrp->is_initialized ) |
---|
[5a18e04] | 568 | return EINVAL; |
---|
| 569 | |
---|
| 570 | /* |
---|
| 571 | * Core Thread Initialize insures we get the minimum amount of |
---|
| 572 | * stack space. |
---|
| 573 | */ |
---|
| 574 | |
---|
| 575 | #if 0 |
---|
| 576 | int contentionscope; |
---|
| 577 | int inheritsched; |
---|
| 578 | int schedpolicy; |
---|
| 579 | struct sched_param schedparam; |
---|
| 580 | |
---|
| 581 | #if defined(_POSIX_THREAD_CPUTIME) |
---|
| 582 | int cputime_clock_allowed; /* see time.h */ |
---|
| 583 | #endif |
---|
| 584 | int detachstate; |
---|
| 585 | #endif |
---|
[974ff40] | 586 | |
---|
[e72d995a] | 587 | /* |
---|
| 588 | * P1003.1c/D10, p. 121. |
---|
| 589 | * |
---|
| 590 | * If inheritsched is set to PTHREAD_INHERIT_SCHED, then this thread |
---|
| 591 | * inherits scheduling attributes from the creating thread. If it is |
---|
| 592 | * PTHREAD_EXPLICIT_SCHED, then scheduling parameters come from the |
---|
| 593 | * attributes structure. |
---|
| 594 | */ |
---|
| 595 | |
---|
| 596 | switch ( attrp->inheritsched ) { |
---|
| 597 | case PTHREAD_INHERIT_SCHED: |
---|
| 598 | break; |
---|
| 599 | case PTHREAD_EXPLICIT_SCHED: |
---|
| 600 | break; |
---|
| 601 | } |
---|
| 602 | |
---|
[ece8c9a] | 603 | /* |
---|
| 604 | * Validate the RTEMS API priority and convert it to the core priority range. |
---|
| 605 | */ |
---|
| 606 | |
---|
[cfcfdf0] | 607 | if ( !_POSIX_Priority_Is_valid( attrp->schedparam.sched_priority ) ) |
---|
[ece8c9a] | 608 | return EINVAL; |
---|
| 609 | |
---|
[cfcfdf0] | 610 | core_priority = _POSIX_Priority_To_core( attrp->schedparam.sched_priority ); |
---|
[ece8c9a] | 611 | |
---|
| 612 | /* |
---|
[7f72217e] | 613 | * Currently all POSIX threads are floating point if the hardware |
---|
| 614 | * supports it. |
---|
[ece8c9a] | 615 | */ |
---|
| 616 | |
---|
[7f72217e] | 617 | is_fp = CPU_HARDWARE_FP; |
---|
[ece8c9a] | 618 | |
---|
| 619 | /* |
---|
| 620 | * Disable dispatch for protection |
---|
| 621 | */ |
---|
| 622 | |
---|
| 623 | _Thread_Disable_dispatch(); |
---|
| 624 | |
---|
| 625 | /* |
---|
| 626 | * Allocate the thread control block. |
---|
| 627 | * |
---|
| 628 | * NOTE: Global threads are not currently supported. |
---|
| 629 | */ |
---|
| 630 | |
---|
| 631 | the_thread = _POSIX_Threads_Allocate(); |
---|
| 632 | |
---|
| 633 | if ( !the_thread ) { |
---|
| 634 | _Thread_Enable_dispatch(); |
---|
| 635 | return EINVAL; |
---|
| 636 | } |
---|
| 637 | |
---|
| 638 | /* |
---|
| 639 | * Initialize the core thread for this task. |
---|
| 640 | */ |
---|
| 641 | |
---|
| 642 | status = _Thread_Initialize( |
---|
| 643 | &_POSIX_Threads_Information, |
---|
| 644 | the_thread, |
---|
[cfcfdf0] | 645 | attrp->stackaddr, |
---|
| 646 | attrp->stacksize, |
---|
[ece8c9a] | 647 | is_fp, |
---|
| 648 | core_priority, |
---|
| 649 | TRUE, /* preemptible */ |
---|
| 650 | TRUE, /* timesliced */ |
---|
| 651 | 0, /* isr level */ |
---|
| 652 | &default_name /* posix threads don't have a name */ |
---|
| 653 | ); |
---|
| 654 | |
---|
| 655 | if ( !status ) { |
---|
| 656 | _POSIX_Threads_Free( the_thread ); |
---|
| 657 | _Thread_Enable_dispatch(); |
---|
| 658 | return EINVAL; |
---|
| 659 | } |
---|
| 660 | |
---|
[cfcfdf0] | 661 | status = _Thread_Start( |
---|
| 662 | the_thread, |
---|
| 663 | THREAD_START_POINTER, |
---|
| 664 | start_routine, |
---|
| 665 | arg, |
---|
| 666 | 0 /* unused */ |
---|
| 667 | ); |
---|
| 668 | |
---|
| 669 | /* |
---|
| 670 | * _Thread_Start only fails if the thread was in the incorrect state |
---|
| 671 | */ |
---|
| 672 | |
---|
| 673 | if ( !status ) { |
---|
| 674 | _POSIX_Threads_Free( the_thread ); |
---|
| 675 | _Thread_Enable_dispatch(); |
---|
| 676 | return EINVAL; |
---|
| 677 | } |
---|
| 678 | |
---|
| 679 | |
---|
| 680 | /* |
---|
| 681 | * Return the id and indicate we successfully created the thread |
---|
| 682 | */ |
---|
| 683 | |
---|
[ece8c9a] | 684 | *thread = the_thread->Object.id; |
---|
| 685 | |
---|
| 686 | _Thread_Enable_dispatch(); |
---|
| 687 | |
---|
| 688 | return 0; |
---|
| 689 | |
---|
[5e9b32b] | 690 | } |
---|
| 691 | |
---|
| 692 | /*PAGE |
---|
| 693 | * |
---|
| 694 | * 16.1.3 Wait for Thread Termination, P1003.1c/Draft 10, p. 147 |
---|
| 695 | */ |
---|
| 696 | |
---|
| 697 | int pthread_join( |
---|
| 698 | pthread_t thread, |
---|
| 699 | void **value_ptr |
---|
| 700 | ) |
---|
| 701 | { |
---|
| 702 | return POSIX_NOT_IMPLEMENTED(); |
---|
| 703 | } |
---|
| 704 | |
---|
| 705 | /*PAGE |
---|
| 706 | * |
---|
| 707 | * 16.1.4 Detaching a Thread, P1003.1c/Draft 10, p. 149 |
---|
| 708 | */ |
---|
| 709 | |
---|
| 710 | int pthread_detach( |
---|
| 711 | pthread_t thread |
---|
| 712 | ) |
---|
| 713 | { |
---|
| 714 | return POSIX_NOT_IMPLEMENTED(); |
---|
| 715 | } |
---|
| 716 | |
---|
[974ff40] | 717 | /*PAGE |
---|
| 718 | * |
---|
| 719 | * 16.1.5.1 Thread Termination, p1003.1c/Draft 10, p. 150 |
---|
| 720 | */ |
---|
| 721 | |
---|
| 722 | void pthread_exit( |
---|
| 723 | void *value_ptr |
---|
| 724 | ) |
---|
| 725 | { |
---|
[cfcfdf0] | 726 | register Thread_Control *the_thread; |
---|
| 727 | |
---|
| 728 | the_thread = _Thread_Executing; |
---|
| 729 | |
---|
| 730 | _Thread_Disable_dispatch(); |
---|
| 731 | |
---|
| 732 | /* |
---|
| 733 | * XXX Will need to deal with join/detach |
---|
| 734 | */ |
---|
| 735 | |
---|
| 736 | _Thread_Close( &_POSIX_Threads_Information, the_thread ); |
---|
| 737 | |
---|
| 738 | _POSIX_Threads_Free( the_thread ); |
---|
| 739 | |
---|
| 740 | _Thread_Enable_dispatch(); |
---|
[974ff40] | 741 | } |
---|
[5e9b32b] | 742 | |
---|
| 743 | /*PAGE |
---|
| 744 | * |
---|
| 745 | * 16.1.6 Get Calling Thread's ID, p1003.1c/Draft 10, p. XXX |
---|
| 746 | */ |
---|
| 747 | |
---|
| 748 | pthread_t pthread_self( void ) |
---|
| 749 | { |
---|
| 750 | return _Thread_Executing->Object.id; |
---|
| 751 | } |
---|
| 752 | |
---|
| 753 | /*PAGE |
---|
| 754 | * |
---|
| 755 | * 16.1.7 Compare Thread IDs, p1003.1c/Draft 10, p. 153 |
---|
| 756 | */ |
---|
| 757 | |
---|
| 758 | int pthread_equal( |
---|
| 759 | pthread_t t1, |
---|
| 760 | pthread_t t2 |
---|
| 761 | ) |
---|
| 762 | { |
---|
| 763 | #ifdef RTEMS_DEBUG |
---|
| 764 | /* XXX may want to do a "get" to make sure both are valid. */ |
---|
| 765 | /* XXX behavior is undefined if not valid pthread_t's */ |
---|
| 766 | #endif |
---|
| 767 | return _Objects_Are_ids_equal( t1, t1 ); |
---|
| 768 | } |
---|
| 769 | |
---|
| 770 | /*PAGE |
---|
| 771 | * |
---|
| 772 | * 16.1.8 Dynamic Package Initialization |
---|
| 773 | */ |
---|
| 774 | |
---|
| 775 | int pthread_once( |
---|
| 776 | pthread_once_t *once_control, |
---|
| 777 | void (*init_routine)(void) |
---|
| 778 | ) |
---|
| 779 | { |
---|
| 780 | /* XXX: Should we implement this routine this way or make it a full */ |
---|
| 781 | /* XXX: fledged object? */ |
---|
| 782 | |
---|
| 783 | if ( !once_control || !init_routine ) |
---|
| 784 | return EINVAL; |
---|
| 785 | |
---|
| 786 | _Thread_Disable_dispatch(); |
---|
| 787 | |
---|
| 788 | if ( !once_control->is_initialized ) { |
---|
| 789 | |
---|
| 790 | once_control->is_initialized = TRUE; |
---|
| 791 | once_control->init_executed = TRUE; |
---|
| 792 | (*init_routine)(); |
---|
| 793 | |
---|
| 794 | } if ( !once_control->init_executed ) { |
---|
| 795 | |
---|
| 796 | once_control->init_executed = TRUE; |
---|
| 797 | (*init_routine)(); |
---|
| 798 | |
---|
| 799 | } |
---|
| 800 | |
---|
| 801 | _Thread_Enable_dispatch(); |
---|
| 802 | |
---|
| 803 | return 0; |
---|
| 804 | } |
---|
| 805 | |
---|
| 806 | /*PAGE |
---|
| 807 | * |
---|
| 808 | * 20.1.6 Accessing a Thread CPU-time Clock, P1003.4b/D8, p. 58 |
---|
| 809 | */ |
---|
| 810 | |
---|
| 811 | int pthread_getcpuclockid( |
---|
| 812 | pthread_t pid, |
---|
| 813 | clockid_t *clock_id |
---|
| 814 | ) |
---|
| 815 | { |
---|
| 816 | return POSIX_NOT_IMPLEMENTED(); |
---|
| 817 | } |
---|
| 818 | |
---|
| 819 | /*PAGE |
---|
| 820 | * |
---|
| 821 | * 20.1.7 CPU-time Clock Thread Creation Attribute, P1003.4b/D8, p. 59 |
---|
| 822 | */ |
---|
| 823 | |
---|
| 824 | int pthread_attr_setcputime( |
---|
| 825 | pthread_attr_t *attr, |
---|
| 826 | int clock_allowed |
---|
| 827 | ) |
---|
| 828 | { |
---|
| 829 | if ( !attr || !attr->is_initialized ) |
---|
| 830 | return EINVAL; |
---|
| 831 | |
---|
| 832 | attr->cputime_clock_allowed = clock_allowed; |
---|
| 833 | return 0; |
---|
| 834 | } |
---|
| 835 | |
---|
| 836 | /*PAGE |
---|
| 837 | * |
---|
| 838 | * 20.1.7 CPU-time Clock Thread Creation Attribute, P1003.4b/D8, p. 59 |
---|
| 839 | */ |
---|
| 840 | |
---|
| 841 | int pthread_attr_getcputime( |
---|
| 842 | pthread_attr_t *attr, |
---|
| 843 | int *clock_allowed |
---|
| 844 | ) |
---|
| 845 | { |
---|
| 846 | if ( !attr || !attr->is_initialized ) |
---|
| 847 | return EINVAL; |
---|
| 848 | |
---|
| 849 | *clock_allowed = attr->cputime_clock_allowed; |
---|
| 850 | return 0; |
---|
| 851 | } |
---|