Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pj/os.h> |
| 21 | #include <pj/pool.h> |
| 22 | #include <pj/log.h> |
| 23 | #include <pj/string.h> |
| 24 | #include <pj/guid.h> |
| 25 | #include <pj/rand.h> |
| 26 | #include <pj/assert.h> |
| 27 | #include <pj/errno.h> |
| 28 | #include <pj/except.h> |
| 29 | #include <stddef.h> |
| 30 | #include <stdlib.h> |
| 31 | #include <stdio.h> |
| 32 | |
| 33 | #if defined(PJ_HAS_WINSOCK_H) && PJ_HAS_WINSOCK_H != 0 |
| 34 | # include <winsock.h> |
| 35 | #endif |
| 36 | |
| 37 | #if defined(PJ_HAS_WINSOCK2_H) && PJ_HAS_WINSOCK2_H != 0 |
| 38 | # include <winsock2.h> |
| 39 | #endif |
| 40 | |
| 41 | /* Activate mutex related logging if PJ_DEBUG_MUTEX is set, otherwise |
| 42 | * use default level 6 logging. |
| 43 | */ |
| 44 | #if defined(PJ_DEBUG_MUTEX) && PJ_DEBUG_MUTEX |
| 45 | # undef PJ_DEBUG |
| 46 | # define PJ_DEBUG 1 |
| 47 | # define LOG_MUTEX(expr) PJ_LOG(5,expr) |
| 48 | #else |
| 49 | # define LOG_MUTEX(expr) PJ_LOG(6,expr) |
| 50 | #endif |
| 51 | |
| 52 | #define THIS_FILE "os_core_win32.c" |
| 53 | |
| 54 | /* |
| 55 | * Implementation of pj_thread_t. |
| 56 | */ |
| 57 | struct pj_thread_t |
| 58 | { |
| 59 | char obj_name[PJ_MAX_OBJ_NAME]; |
| 60 | HANDLE hthread; |
| 61 | DWORD idthread; |
| 62 | pj_thread_proc *proc; |
| 63 | void *arg; |
| 64 | |
| 65 | #if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0 |
| 66 | pj_uint32_t stk_size; |
| 67 | pj_uint32_t stk_max_usage; |
| 68 | char *stk_start; |
| 69 | const char *caller_file; |
| 70 | int caller_line; |
| 71 | #endif |
| 72 | }; |
| 73 | |
| 74 | |
| 75 | /* |
| 76 | * Implementation of pj_mutex_t. |
| 77 | */ |
| 78 | struct pj_mutex_t |
| 79 | { |
| 80 | #if PJ_WIN32_WINNT >= 0x0400 |
| 81 | CRITICAL_SECTION crit; |
| 82 | #else |
| 83 | HANDLE hMutex; |
| 84 | #endif |
| 85 | char obj_name[PJ_MAX_OBJ_NAME]; |
| 86 | #if PJ_DEBUG |
| 87 | int nesting_level; |
| 88 | pj_thread_t *owner; |
| 89 | #endif |
| 90 | }; |
| 91 | |
| 92 | /* |
| 93 | * Implementation of pj_sem_t. |
| 94 | */ |
| 95 | typedef struct pj_sem_t |
| 96 | { |
| 97 | HANDLE hSemaphore; |
| 98 | char obj_name[PJ_MAX_OBJ_NAME]; |
| 99 | } pj_mem_t; |
| 100 | |
| 101 | |
| 102 | /* |
| 103 | * Implementation of pj_event_t. |
| 104 | */ |
| 105 | struct pj_event_t |
| 106 | { |
| 107 | HANDLE hEvent; |
| 108 | char obj_name[PJ_MAX_OBJ_NAME]; |
| 109 | }; |
| 110 | |
| 111 | /* |
| 112 | * Implementation of pj_atomic_t. |
| 113 | */ |
| 114 | struct pj_atomic_t |
| 115 | { |
| 116 | long value; |
| 117 | }; |
| 118 | |
| 119 | /* |
| 120 | * Flag and reference counter for PJLIB instance. |
| 121 | */ |
| 122 | static int initialized; |
| 123 | |
| 124 | /* |
| 125 | * Static global variables. |
| 126 | */ |
| 127 | static pj_thread_desc main_thread; |
| 128 | static long thread_tls_id = -1; |
| 129 | static pj_mutex_t critical_section_mutex; |
| 130 | static unsigned atexit_count; |
| 131 | static void (*atexit_func[32])(void); |
| 132 | |
| 133 | /* |
| 134 | * Some static prototypes. |
| 135 | */ |
| 136 | static pj_status_t init_mutex(pj_mutex_t *mutex, const char *name); |
| 137 | |
| 138 | |
| 139 | /* |
| 140 | * pj_init(void). |
| 141 | * Init PJLIB! |
| 142 | */ |
| 143 | PJ_DEF(pj_status_t) pj_init(void) |
| 144 | { |
| 145 | WSADATA wsa; |
| 146 | char dummy_guid[32]; /* use maximum GUID length */ |
| 147 | pj_str_t guid; |
| 148 | pj_status_t rc; |
| 149 | |
| 150 | /* Check if PJLIB have been initialized */ |
| 151 | if (initialized) { |
| 152 | ++initialized; |
| 153 | return PJ_SUCCESS; |
| 154 | } |
| 155 | |
| 156 | /* Init Winsock.. */ |
| 157 | if (WSAStartup(MAKEWORD(2,0), &wsa) != 0) { |
| 158 | return PJ_RETURN_OS_ERROR(WSAGetLastError()); |
| 159 | } |
| 160 | |
| 161 | /* Init this thread's TLS. */ |
| 162 | if ((rc=pj_thread_init()) != PJ_SUCCESS) { |
| 163 | return rc; |
| 164 | } |
| 165 | |
| 166 | /* Init logging */ |
| 167 | pj_log_init(); |
| 168 | |
| 169 | /* Init random seed. */ |
| 170 | /* Or probably not. Let application in charge of this */ |
| 171 | /* pj_srand( GetCurrentProcessId() ); */ |
| 172 | |
| 173 | /* Initialize critical section. */ |
| 174 | if ((rc=init_mutex(&critical_section_mutex, "pj%p")) != PJ_SUCCESS) |
| 175 | return rc; |
| 176 | |
| 177 | /* Startup GUID. */ |
| 178 | guid.ptr = dummy_guid; |
| 179 | pj_generate_unique_string( &guid ); |
| 180 | |
| 181 | /* Initialize exception ID for the pool. |
| 182 | * Must do so after critical section is configured. |
| 183 | */ |
| 184 | rc = pj_exception_id_alloc("PJLIB/No memory", &PJ_NO_MEMORY_EXCEPTION); |
| 185 | if (rc != PJ_SUCCESS) |
| 186 | return rc; |
| 187 | |
| 188 | /* Startup timestamp */ |
| 189 | #if defined(PJ_HAS_HIGH_RES_TIMER) && PJ_HAS_HIGH_RES_TIMER != 0 |
| 190 | { |
| 191 | pj_timestamp dummy_ts; |
| 192 | if ((rc=pj_get_timestamp_freq(&dummy_ts)) != PJ_SUCCESS) { |
| 193 | return rc; |
| 194 | } |
| 195 | if ((rc=pj_get_timestamp(&dummy_ts)) != PJ_SUCCESS) { |
| 196 | return rc; |
| 197 | } |
| 198 | } |
| 199 | #endif |
| 200 | |
| 201 | /* Flag PJLIB as initialized */ |
| 202 | ++initialized; |
| 203 | pj_assert(initialized == 1); |
| 204 | |
| 205 | PJ_LOG(4,(THIS_FILE, "pjlib %s for win32 initialized", |
| 206 | PJ_VERSION)); |
| 207 | |
| 208 | return PJ_SUCCESS; |
| 209 | } |
| 210 | |
| 211 | /* |
| 212 | * pj_atexit() |
| 213 | */ |
| 214 | PJ_DEF(pj_status_t) pj_atexit(void (*func)(void)) |
| 215 | { |
| 216 | if (atexit_count >= PJ_ARRAY_SIZE(atexit_func)) |
| 217 | return PJ_ETOOMANY; |
| 218 | |
| 219 | atexit_func[atexit_count++] = func; |
| 220 | return PJ_SUCCESS; |
| 221 | } |
| 222 | |
| 223 | |
| 224 | /* |
| 225 | * pj_shutdown(void) |
| 226 | */ |
| 227 | PJ_DEF(void) pj_shutdown() |
| 228 | { |
| 229 | int i; |
| 230 | |
| 231 | /* Only perform shutdown operation when 'initialized' reaches zero */ |
| 232 | pj_assert(initialized > 0); |
| 233 | if (--initialized != 0) |
| 234 | return; |
| 235 | |
| 236 | /* Display stack usage */ |
| 237 | #if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0 |
| 238 | { |
| 239 | pj_thread_t *rec = (pj_thread_t*)main_thread; |
| 240 | PJ_LOG(5,(rec->obj_name, "Main thread stack max usage=%u by %s:%d", |
| 241 | rec->stk_max_usage, rec->caller_file, rec->caller_line)); |
| 242 | } |
| 243 | #endif |
| 244 | |
| 245 | /* Call atexit() functions */ |
| 246 | for (i=atexit_count-1; i>=0; --i) { |
| 247 | (*atexit_func[i])(); |
| 248 | } |
| 249 | atexit_count = 0; |
| 250 | |
| 251 | /* Free exception ID */ |
| 252 | if (PJ_NO_MEMORY_EXCEPTION != -1) { |
| 253 | pj_exception_id_free(PJ_NO_MEMORY_EXCEPTION); |
| 254 | PJ_NO_MEMORY_EXCEPTION = -1; |
| 255 | } |
| 256 | |
| 257 | /* Destroy PJLIB critical section */ |
| 258 | pj_mutex_destroy(&critical_section_mutex); |
| 259 | |
| 260 | /* Free PJLIB TLS */ |
| 261 | if (thread_tls_id != -1) { |
| 262 | pj_thread_local_free(thread_tls_id); |
| 263 | thread_tls_id = -1; |
| 264 | } |
| 265 | |
| 266 | /* Clear static variables */ |
| 267 | pj_errno_clear_handlers(); |
| 268 | |
| 269 | /* Ticket #1132: Assertion when (re)starting PJLIB on different thread */ |
| 270 | pj_bzero(main_thread, sizeof(main_thread)); |
| 271 | |
| 272 | /* Shutdown Winsock */ |
| 273 | WSACleanup(); |
| 274 | } |
| 275 | |
| 276 | |
| 277 | /* |
| 278 | * pj_getpid(void) |
| 279 | */ |
| 280 | PJ_DEF(pj_uint32_t) pj_getpid(void) |
| 281 | { |
| 282 | PJ_CHECK_STACK(); |
| 283 | return GetCurrentProcessId(); |
| 284 | } |
| 285 | |
| 286 | /* |
| 287 | * Check if this thread has been registered to PJLIB. |
| 288 | */ |
| 289 | PJ_DEF(pj_bool_t) pj_thread_is_registered(void) |
| 290 | { |
| 291 | return pj_thread_local_get(thread_tls_id) != 0; |
| 292 | } |
| 293 | |
| 294 | |
| 295 | /* |
| 296 | * Get thread priority value for the thread. |
| 297 | */ |
| 298 | PJ_DEF(int) pj_thread_get_prio(pj_thread_t *thread) |
| 299 | { |
| 300 | return GetThreadPriority(thread->hthread); |
| 301 | } |
| 302 | |
| 303 | |
| 304 | /* |
| 305 | * Set the thread priority. |
| 306 | */ |
| 307 | PJ_DEF(pj_status_t) pj_thread_set_prio(pj_thread_t *thread, int prio) |
| 308 | { |
| 309 | #if PJ_HAS_THREADS |
| 310 | PJ_ASSERT_RETURN(thread, PJ_EINVAL); |
| 311 | PJ_ASSERT_RETURN(prio>=THREAD_PRIORITY_IDLE && |
| 312 | prio<=THREAD_PRIORITY_TIME_CRITICAL, |
| 313 | PJ_EINVAL); |
| 314 | |
| 315 | if (SetThreadPriority(thread->hthread, prio) == FALSE) |
| 316 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 317 | |
| 318 | return PJ_SUCCESS; |
| 319 | |
| 320 | #else |
| 321 | PJ_UNUSED_ARG(thread); |
| 322 | PJ_UNUSED_ARG(prio); |
| 323 | pj_assert("pj_thread_set_prio() called in non-threading mode!"); |
| 324 | return PJ_EINVALIDOP; |
| 325 | #endif |
| 326 | } |
| 327 | |
| 328 | |
| 329 | /* |
| 330 | * Get the lowest priority value available on this system. |
| 331 | */ |
| 332 | PJ_DEF(int) pj_thread_get_prio_min(pj_thread_t *thread) |
| 333 | { |
| 334 | PJ_UNUSED_ARG(thread); |
| 335 | return THREAD_PRIORITY_IDLE; |
| 336 | } |
| 337 | |
| 338 | |
| 339 | /* |
| 340 | * Get the highest priority value available on this system. |
| 341 | */ |
| 342 | PJ_DEF(int) pj_thread_get_prio_max(pj_thread_t *thread) |
| 343 | { |
| 344 | PJ_UNUSED_ARG(thread); |
| 345 | return THREAD_PRIORITY_TIME_CRITICAL; |
| 346 | } |
| 347 | |
| 348 | |
| 349 | /* |
| 350 | * Get native thread handle |
| 351 | */ |
| 352 | PJ_DEF(void*) pj_thread_get_os_handle(pj_thread_t *thread) |
| 353 | { |
| 354 | PJ_ASSERT_RETURN(thread, NULL); |
| 355 | |
| 356 | #if PJ_HAS_THREADS |
| 357 | return thread->hthread; |
| 358 | #else |
| 359 | pj_assert("pj_thread_is_registered() called in non-threading mode!"); |
| 360 | return NULL; |
| 361 | #endif |
| 362 | } |
| 363 | |
| 364 | /* |
| 365 | * pj_thread_register(..) |
| 366 | */ |
| 367 | PJ_DEF(pj_status_t) pj_thread_register ( const char *cstr_thread_name, |
| 368 | pj_thread_desc desc, |
| 369 | pj_thread_t **thread_ptr) |
| 370 | { |
| 371 | char stack_ptr; |
| 372 | pj_status_t rc; |
| 373 | pj_thread_t *thread = (pj_thread_t *)desc; |
| 374 | pj_str_t thread_name = pj_str((char*)cstr_thread_name); |
| 375 | |
| 376 | /* Size sanity check. */ |
| 377 | if (sizeof(pj_thread_desc) < sizeof(pj_thread_t)) { |
| 378 | pj_assert(!"Not enough pj_thread_desc size!"); |
| 379 | return PJ_EBUG; |
| 380 | } |
| 381 | |
| 382 | /* If a thread descriptor has been registered before, just return it. */ |
| 383 | if (pj_thread_local_get (thread_tls_id) != 0) { |
| 384 | // 2006-02-26 bennylp: |
| 385 | // This wouldn't work in all cases!. |
| 386 | // If thread is created by external module (e.g. sound thread), |
| 387 | // thread may be reused while the pool used for the thread descriptor |
| 388 | // has been deleted by application. |
| 389 | //*thread_ptr = (pj_thread_t*)pj_thread_local_get (thread_tls_id); |
| 390 | //return PJ_SUCCESS; |
| 391 | } |
| 392 | |
| 393 | /* Initialize and set the thread entry. */ |
| 394 | pj_bzero(desc, sizeof(struct pj_thread_t)); |
| 395 | thread->hthread = GetCurrentThread(); |
| 396 | thread->idthread = GetCurrentThreadId(); |
| 397 | |
| 398 | #if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0 |
| 399 | thread->stk_start = &stack_ptr; |
| 400 | thread->stk_size = 0xFFFFFFFFUL; |
| 401 | thread->stk_max_usage = 0; |
| 402 | #else |
| 403 | stack_ptr = '\0'; |
| 404 | #endif |
| 405 | |
| 406 | if (cstr_thread_name && pj_strlen(&thread_name) < sizeof(thread->obj_name)-1) |
| 407 | pj_ansi_snprintf(thread->obj_name, sizeof(thread->obj_name), |
| 408 | cstr_thread_name, thread->idthread); |
| 409 | else |
| 410 | pj_ansi_snprintf(thread->obj_name, sizeof(thread->obj_name), |
| 411 | "thr%p", (void*)(pj_ssize_t)thread->idthread); |
| 412 | |
| 413 | rc = pj_thread_local_set(thread_tls_id, thread); |
| 414 | if (rc != PJ_SUCCESS) |
| 415 | return rc; |
| 416 | |
| 417 | *thread_ptr = thread; |
| 418 | return PJ_SUCCESS; |
| 419 | } |
| 420 | |
| 421 | /* |
| 422 | * pj_thread_init(void) |
| 423 | */ |
| 424 | pj_status_t pj_thread_init(void) |
| 425 | { |
| 426 | pj_status_t rc; |
| 427 | pj_thread_t *thread; |
| 428 | |
| 429 | rc = pj_thread_local_alloc(&thread_tls_id); |
| 430 | if (rc != PJ_SUCCESS) |
| 431 | return rc; |
| 432 | |
| 433 | return pj_thread_register("thr%p", main_thread, &thread); |
| 434 | } |
| 435 | |
| 436 | static DWORD WINAPI thread_main(void *param) |
| 437 | { |
| 438 | pj_thread_t *rec = param; |
| 439 | DWORD result; |
| 440 | |
| 441 | #if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0 |
| 442 | rec->stk_start = (char*)&rec; |
| 443 | #endif |
| 444 | |
| 445 | if (pj_thread_local_set(thread_tls_id, rec) != PJ_SUCCESS) { |
| 446 | pj_assert(!"TLS is not set (pj_init() error?)"); |
| 447 | } |
| 448 | |
| 449 | PJ_LOG(6,(rec->obj_name, "Thread started")); |
| 450 | |
| 451 | result = (*rec->proc)(rec->arg); |
| 452 | |
| 453 | PJ_LOG(6,(rec->obj_name, "Thread quitting")); |
| 454 | #if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0 |
| 455 | PJ_LOG(5,(rec->obj_name, "Thread stack max usage=%u by %s:%d", |
| 456 | rec->stk_max_usage, rec->caller_file, rec->caller_line)); |
| 457 | #endif |
| 458 | |
| 459 | return (DWORD)result; |
| 460 | } |
| 461 | |
| 462 | /* |
| 463 | * pj_thread_create(...) |
| 464 | */ |
| 465 | PJ_DEF(pj_status_t) pj_thread_create( pj_pool_t *pool, |
| 466 | const char *thread_name, |
| 467 | pj_thread_proc *proc, |
| 468 | void *arg, |
| 469 | pj_size_t stack_size, |
| 470 | unsigned flags, |
| 471 | pj_thread_t **thread_ptr) |
| 472 | { |
| 473 | DWORD dwflags = 0; |
| 474 | pj_thread_t *rec; |
| 475 | |
| 476 | PJ_CHECK_STACK(); |
| 477 | PJ_ASSERT_RETURN(pool && proc && thread_ptr, PJ_EINVAL); |
| 478 | |
| 479 | /* Set flags */ |
| 480 | if (flags & PJ_THREAD_SUSPENDED) |
| 481 | dwflags |= CREATE_SUSPENDED; |
| 482 | |
| 483 | /* Create thread record and assign name for the thread */ |
| 484 | rec = (struct pj_thread_t*) pj_pool_calloc(pool, 1, sizeof(pj_thread_t)); |
| 485 | if (!rec) |
| 486 | return PJ_ENOMEM; |
| 487 | |
| 488 | /* Set name. */ |
| 489 | if (!thread_name) |
| 490 | thread_name = "thr%p"; |
| 491 | |
| 492 | if (strchr(thread_name, '%')) { |
| 493 | pj_ansi_snprintf(rec->obj_name, PJ_MAX_OBJ_NAME, thread_name, rec); |
| 494 | } else { |
| 495 | pj_ansi_strncpy(rec->obj_name, thread_name, PJ_MAX_OBJ_NAME); |
| 496 | rec->obj_name[PJ_MAX_OBJ_NAME-1] = '\0'; |
| 497 | } |
| 498 | |
| 499 | PJ_LOG(6, (rec->obj_name, "Thread created")); |
| 500 | |
| 501 | #if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0 |
| 502 | rec->stk_size = stack_size ? (pj_uint32_t)stack_size : 0xFFFFFFFFUL; |
| 503 | rec->stk_max_usage = 0; |
| 504 | #endif |
| 505 | |
| 506 | /* Create the thread. */ |
| 507 | rec->proc = proc; |
| 508 | rec->arg = arg; |
| 509 | rec->hthread = CreateThread(NULL, stack_size, |
| 510 | thread_main, rec, |
| 511 | dwflags, &rec->idthread); |
| 512 | if (rec->hthread == NULL) |
| 513 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 514 | |
| 515 | /* Success! */ |
| 516 | *thread_ptr = rec; |
| 517 | return PJ_SUCCESS; |
| 518 | } |
| 519 | |
| 520 | /* |
| 521 | * pj_thread-get_name() |
| 522 | */ |
| 523 | PJ_DEF(const char*) pj_thread_get_name(pj_thread_t *p) |
| 524 | { |
| 525 | pj_thread_t *rec = (pj_thread_t*)p; |
| 526 | |
| 527 | PJ_CHECK_STACK(); |
| 528 | PJ_ASSERT_RETURN(p, ""); |
| 529 | |
| 530 | return rec->obj_name; |
| 531 | } |
| 532 | |
| 533 | /* |
| 534 | * pj_thread_resume() |
| 535 | */ |
| 536 | PJ_DEF(pj_status_t) pj_thread_resume(pj_thread_t *p) |
| 537 | { |
| 538 | pj_thread_t *rec = (pj_thread_t*)p; |
| 539 | |
| 540 | PJ_CHECK_STACK(); |
| 541 | PJ_ASSERT_RETURN(p, PJ_EINVAL); |
| 542 | |
| 543 | if (ResumeThread(rec->hthread) == (DWORD)-1) |
| 544 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 545 | else |
| 546 | return PJ_SUCCESS; |
| 547 | } |
| 548 | |
| 549 | /* |
| 550 | * pj_thread_this() |
| 551 | */ |
| 552 | PJ_DEF(pj_thread_t*) pj_thread_this(void) |
| 553 | { |
| 554 | pj_thread_t *rec = pj_thread_local_get(thread_tls_id); |
| 555 | |
| 556 | if (rec == NULL) { |
| 557 | pj_assert(!"Calling pjlib from unknown/external thread. You must " |
| 558 | "register external threads with pj_thread_register() " |
| 559 | "before calling any pjlib functions."); |
| 560 | } |
| 561 | |
| 562 | /* |
| 563 | * MUST NOT check stack because this function is called |
| 564 | * by PJ_CHECK_STACK() itself!!! |
| 565 | * |
| 566 | */ |
| 567 | |
| 568 | return rec; |
| 569 | } |
| 570 | |
| 571 | /* |
| 572 | * pj_thread_join() |
| 573 | */ |
| 574 | PJ_DEF(pj_status_t) pj_thread_join(pj_thread_t *p) |
| 575 | { |
| 576 | pj_thread_t *rec = (pj_thread_t *)p; |
| 577 | DWORD rc; |
| 578 | |
| 579 | PJ_CHECK_STACK(); |
| 580 | PJ_ASSERT_RETURN(p, PJ_EINVAL); |
| 581 | |
| 582 | if (p == pj_thread_this()) |
| 583 | return PJ_ECANCELLED; |
| 584 | |
| 585 | PJ_LOG(6, (pj_thread_this()->obj_name, "Joining thread %s", p->obj_name)); |
| 586 | |
| 587 | rc = WaitForSingleObject(rec->hthread, INFINITE); |
| 588 | |
| 589 | if (rc==WAIT_OBJECT_0) |
| 590 | return PJ_SUCCESS; |
| 591 | else if (rc==WAIT_TIMEOUT) |
| 592 | return PJ_ETIMEDOUT; |
| 593 | else |
| 594 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 595 | } |
| 596 | |
| 597 | /* |
| 598 | * pj_thread_destroy() |
| 599 | */ |
| 600 | PJ_DEF(pj_status_t) pj_thread_destroy(pj_thread_t *p) |
| 601 | { |
| 602 | pj_thread_t *rec = (pj_thread_t *)p; |
| 603 | |
| 604 | PJ_CHECK_STACK(); |
| 605 | PJ_ASSERT_RETURN(p, PJ_EINVAL); |
| 606 | |
| 607 | if (CloseHandle(rec->hthread) == TRUE) |
| 608 | return PJ_SUCCESS; |
| 609 | else |
| 610 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 611 | } |
| 612 | |
| 613 | /* |
| 614 | * pj_thread_sleep() |
| 615 | */ |
| 616 | PJ_DEF(pj_status_t) pj_thread_sleep(unsigned msec) |
| 617 | { |
| 618 | PJ_CHECK_STACK(); |
| 619 | Sleep(msec); |
| 620 | return PJ_SUCCESS; |
| 621 | } |
| 622 | |
| 623 | #if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK != 0 |
| 624 | /* |
| 625 | * pj_thread_check_stack() |
| 626 | * Implementation for PJ_CHECK_STACK() |
| 627 | */ |
| 628 | PJ_DEF(void) pj_thread_check_stack(const char *file, int line) |
| 629 | { |
| 630 | char stk_ptr; |
| 631 | pj_uint32_t usage; |
| 632 | pj_thread_t *thread = pj_thread_this(); |
| 633 | |
| 634 | pj_assert(thread); |
| 635 | |
| 636 | /* Calculate current usage. */ |
| 637 | usage = (&stk_ptr > thread->stk_start) ? |
| 638 | (pj_uint32_t)(&stk_ptr - thread->stk_start) : |
| 639 | (pj_uint32_t)(thread->stk_start - &stk_ptr); |
| 640 | |
| 641 | /* Assert if stack usage is dangerously high. */ |
| 642 | pj_assert("STACK OVERFLOW!! " && (usage <= thread->stk_size - 128)); |
| 643 | |
| 644 | /* Keep statistic. */ |
| 645 | if (usage > thread->stk_max_usage) { |
| 646 | thread->stk_max_usage = usage; |
| 647 | thread->caller_file = file; |
| 648 | thread->caller_line = line; |
| 649 | } |
| 650 | |
| 651 | } |
| 652 | |
| 653 | /* |
| 654 | * pj_thread_get_stack_max_usage() |
| 655 | */ |
| 656 | PJ_DEF(pj_uint32_t) pj_thread_get_stack_max_usage(pj_thread_t *thread) |
| 657 | { |
| 658 | return thread->stk_max_usage; |
| 659 | } |
| 660 | |
| 661 | /* |
| 662 | * pj_thread_get_stack_info() |
| 663 | */ |
| 664 | PJ_DEF(pj_status_t) pj_thread_get_stack_info( pj_thread_t *thread, |
| 665 | const char **file, |
| 666 | int *line ) |
| 667 | { |
| 668 | pj_assert(thread); |
| 669 | |
| 670 | *file = thread->caller_file; |
| 671 | *line = thread->caller_line; |
| 672 | return 0; |
| 673 | } |
| 674 | |
| 675 | #endif /* PJ_OS_HAS_CHECK_STACK */ |
| 676 | |
| 677 | |
| 678 | /////////////////////////////////////////////////////////////////////////////// |
| 679 | |
| 680 | /* |
| 681 | * pj_atomic_create() |
| 682 | */ |
| 683 | PJ_DEF(pj_status_t) pj_atomic_create( pj_pool_t *pool, |
| 684 | pj_atomic_value_t initial, |
| 685 | pj_atomic_t **atomic_ptr) |
| 686 | { |
| 687 | pj_atomic_t *atomic_var = pj_pool_alloc(pool, sizeof(pj_atomic_t)); |
| 688 | if (!atomic_var) |
| 689 | return PJ_ENOMEM; |
| 690 | |
| 691 | atomic_var->value = initial; |
| 692 | *atomic_ptr = atomic_var; |
| 693 | |
| 694 | return PJ_SUCCESS; |
| 695 | } |
| 696 | |
| 697 | /* |
| 698 | * pj_atomic_destroy() |
| 699 | */ |
| 700 | PJ_DEF(pj_status_t) pj_atomic_destroy( pj_atomic_t *var ) |
| 701 | { |
| 702 | PJ_UNUSED_ARG(var); |
| 703 | PJ_ASSERT_RETURN(var, PJ_EINVAL); |
| 704 | |
| 705 | return 0; |
| 706 | } |
| 707 | |
| 708 | /* |
| 709 | * pj_atomic_set() |
| 710 | */ |
| 711 | PJ_DEF(void) pj_atomic_set( pj_atomic_t *atomic_var, pj_atomic_value_t value) |
| 712 | { |
| 713 | PJ_CHECK_STACK(); |
| 714 | |
| 715 | InterlockedExchange(&atomic_var->value, value); |
| 716 | } |
| 717 | |
| 718 | /* |
| 719 | * pj_atomic_get() |
| 720 | */ |
| 721 | PJ_DEF(pj_atomic_value_t) pj_atomic_get(pj_atomic_t *atomic_var) |
| 722 | { |
| 723 | PJ_CHECK_STACK(); |
| 724 | PJ_ASSERT_RETURN(atomic_var, 0); |
| 725 | |
| 726 | return atomic_var->value; |
| 727 | } |
| 728 | |
| 729 | /* |
| 730 | * pj_atomic_inc_and_get() |
| 731 | */ |
| 732 | PJ_DEF(pj_atomic_value_t) pj_atomic_inc_and_get(pj_atomic_t *atomic_var) |
| 733 | { |
| 734 | PJ_CHECK_STACK(); |
| 735 | |
| 736 | #if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400 |
| 737 | return InterlockedIncrement(&atomic_var->value); |
| 738 | #else |
| 739 | return InterlockedIncrement(&atomic_var->value); |
| 740 | #endif |
| 741 | } |
| 742 | |
| 743 | /* |
| 744 | * pj_atomic_inc() |
| 745 | */ |
| 746 | PJ_DEF(void) pj_atomic_inc(pj_atomic_t *atomic_var) |
| 747 | { |
| 748 | pj_atomic_inc_and_get(atomic_var); |
| 749 | } |
| 750 | |
| 751 | /* |
| 752 | * pj_atomic_dec_and_get() |
| 753 | */ |
| 754 | PJ_DEF(pj_atomic_value_t) pj_atomic_dec_and_get(pj_atomic_t *atomic_var) |
| 755 | { |
| 756 | PJ_CHECK_STACK(); |
| 757 | |
| 758 | #if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400 |
| 759 | return InterlockedDecrement(&atomic_var->value); |
| 760 | #else |
| 761 | return InterlockedDecrement(&atomic_var->value); |
| 762 | #endif |
| 763 | } |
| 764 | |
| 765 | /* |
| 766 | * pj_atomic_dec() |
| 767 | */ |
| 768 | PJ_DEF(void) pj_atomic_dec(pj_atomic_t *atomic_var) |
| 769 | { |
| 770 | pj_atomic_dec_and_get(atomic_var); |
| 771 | } |
| 772 | |
| 773 | /* |
| 774 | * pj_atomic_add() |
| 775 | */ |
| 776 | PJ_DEF(void) pj_atomic_add( pj_atomic_t *atomic_var, |
| 777 | pj_atomic_value_t value ) |
| 778 | { |
| 779 | #if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400 |
| 780 | InterlockedExchangeAdd( &atomic_var->value, value ); |
| 781 | #else |
| 782 | InterlockedExchangeAdd( &atomic_var->value, value ); |
| 783 | #endif |
| 784 | } |
| 785 | |
| 786 | /* |
| 787 | * pj_atomic_add_and_get() |
| 788 | */ |
| 789 | PJ_DEF(pj_atomic_value_t) pj_atomic_add_and_get( pj_atomic_t *atomic_var, |
| 790 | pj_atomic_value_t value) |
| 791 | { |
| 792 | #if defined(PJ_WIN32_WINNT) && PJ_WIN32_WINNT >= 0x0400 |
| 793 | long oldValue = InterlockedExchangeAdd( &atomic_var->value, value); |
| 794 | return oldValue + value; |
| 795 | #else |
| 796 | long oldValue = InterlockedExchangeAdd( &atomic_var->value, value); |
| 797 | return oldValue + value; |
| 798 | #endif |
| 799 | } |
| 800 | |
| 801 | /////////////////////////////////////////////////////////////////////////////// |
| 802 | /* |
| 803 | * pj_thread_local_alloc() |
| 804 | */ |
| 805 | PJ_DEF(pj_status_t) pj_thread_local_alloc(long *index) |
| 806 | { |
| 807 | PJ_ASSERT_RETURN(index != NULL, PJ_EINVAL); |
| 808 | |
| 809 | //Can't check stack because this function is called in the |
| 810 | //beginning before main thread is initialized. |
| 811 | //PJ_CHECK_STACK(); |
| 812 | |
| 813 | *index = TlsAlloc(); |
| 814 | |
| 815 | if (*index == TLS_OUT_OF_INDEXES) |
| 816 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 817 | else |
| 818 | return PJ_SUCCESS; |
| 819 | } |
| 820 | |
| 821 | /* |
| 822 | * pj_thread_local_free() |
| 823 | */ |
| 824 | PJ_DEF(void) pj_thread_local_free(long index) |
| 825 | { |
| 826 | PJ_CHECK_STACK(); |
| 827 | TlsFree(index); |
| 828 | } |
| 829 | |
| 830 | /* |
| 831 | * pj_thread_local_set() |
| 832 | */ |
| 833 | PJ_DEF(pj_status_t) pj_thread_local_set(long index, void *value) |
| 834 | { |
| 835 | BOOL rc; |
| 836 | |
| 837 | //Can't check stack because this function is called in the |
| 838 | //beginning before main thread is initialized. |
| 839 | //PJ_CHECK_STACK(); |
| 840 | rc = TlsSetValue(index, value); |
| 841 | return rc!=0 ? PJ_SUCCESS : PJ_RETURN_OS_ERROR(GetLastError()); |
| 842 | } |
| 843 | |
| 844 | /* |
| 845 | * pj_thread_local_get() |
| 846 | */ |
| 847 | PJ_DEF(void*) pj_thread_local_get(long index) |
| 848 | { |
| 849 | //Can't check stack because this function is called |
| 850 | //by PJ_CHECK_STACK() itself!!! |
| 851 | //PJ_CHECK_STACK(); |
| 852 | return TlsGetValue(index); |
| 853 | } |
| 854 | |
| 855 | /////////////////////////////////////////////////////////////////////////////// |
| 856 | static pj_status_t init_mutex(pj_mutex_t *mutex, const char *name) |
| 857 | { |
| 858 | |
| 859 | PJ_CHECK_STACK(); |
| 860 | |
| 861 | #if PJ_WIN32_WINNT >= 0x0400 |
| 862 | InitializeCriticalSection(&mutex->crit); |
| 863 | #else |
| 864 | mutex->hMutex = CreateMutex(NULL, FALSE, NULL); |
| 865 | if (!mutex->hMutex) { |
| 866 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 867 | } |
| 868 | #endif |
| 869 | |
| 870 | #if PJ_DEBUG |
| 871 | /* Set owner. */ |
| 872 | mutex->nesting_level = 0; |
| 873 | mutex->owner = NULL; |
| 874 | #endif |
| 875 | |
| 876 | /* Set name. */ |
| 877 | if (!name) { |
| 878 | name = "mtx%p"; |
| 879 | } |
| 880 | if (strchr(name, '%')) { |
| 881 | pj_ansi_snprintf(mutex->obj_name, PJ_MAX_OBJ_NAME, name, mutex); |
| 882 | } else { |
| 883 | pj_ansi_strncpy(mutex->obj_name, name, PJ_MAX_OBJ_NAME); |
| 884 | mutex->obj_name[PJ_MAX_OBJ_NAME-1] = '\0'; |
| 885 | } |
| 886 | |
| 887 | PJ_LOG(6, (mutex->obj_name, "Mutex created")); |
| 888 | return PJ_SUCCESS; |
| 889 | } |
| 890 | |
| 891 | /* |
| 892 | * pj_mutex_create() |
| 893 | */ |
| 894 | PJ_DEF(pj_status_t) pj_mutex_create(pj_pool_t *pool, |
| 895 | const char *name, |
| 896 | int type, |
| 897 | pj_mutex_t **mutex_ptr) |
| 898 | { |
| 899 | pj_status_t rc; |
| 900 | pj_mutex_t *mutex; |
| 901 | |
| 902 | PJ_UNUSED_ARG(type); |
| 903 | PJ_ASSERT_RETURN(pool && mutex_ptr, PJ_EINVAL); |
| 904 | |
| 905 | mutex = pj_pool_alloc(pool, sizeof(*mutex)); |
| 906 | if (!mutex) |
| 907 | return PJ_ENOMEM; |
| 908 | |
| 909 | rc = init_mutex(mutex, name); |
| 910 | if (rc != PJ_SUCCESS) |
| 911 | return rc; |
| 912 | |
| 913 | *mutex_ptr = mutex; |
| 914 | |
| 915 | return PJ_SUCCESS; |
| 916 | } |
| 917 | |
| 918 | /* |
| 919 | * pj_mutex_create_simple() |
| 920 | */ |
| 921 | PJ_DEF(pj_status_t) pj_mutex_create_simple( pj_pool_t *pool, |
| 922 | const char *name, |
| 923 | pj_mutex_t **mutex ) |
| 924 | { |
| 925 | return pj_mutex_create(pool, name, PJ_MUTEX_SIMPLE, mutex); |
| 926 | } |
| 927 | |
| 928 | /* |
| 929 | * pj_mutex_create_recursive() |
| 930 | */ |
| 931 | PJ_DEF(pj_status_t) pj_mutex_create_recursive( pj_pool_t *pool, |
| 932 | const char *name, |
| 933 | pj_mutex_t **mutex ) |
| 934 | { |
| 935 | return pj_mutex_create(pool, name, PJ_MUTEX_RECURSE, mutex); |
| 936 | } |
| 937 | |
| 938 | /* |
| 939 | * pj_mutex_lock() |
| 940 | */ |
| 941 | PJ_DEF(pj_status_t) pj_mutex_lock(pj_mutex_t *mutex) |
| 942 | { |
| 943 | pj_status_t status; |
| 944 | |
| 945 | PJ_CHECK_STACK(); |
| 946 | PJ_ASSERT_RETURN(mutex, PJ_EINVAL); |
| 947 | |
| 948 | LOG_MUTEX((mutex->obj_name, "Mutex: thread %s is waiting", |
| 949 | pj_thread_this()->obj_name)); |
| 950 | |
| 951 | #if PJ_WIN32_WINNT >= 0x0400 |
| 952 | EnterCriticalSection(&mutex->crit); |
| 953 | status=PJ_SUCCESS; |
| 954 | #else |
| 955 | if (WaitForSingleObject(mutex->hMutex, INFINITE)==WAIT_OBJECT_0) |
| 956 | status = PJ_SUCCESS; |
| 957 | else |
| 958 | status = PJ_STATUS_FROM_OS(GetLastError()); |
| 959 | |
| 960 | #endif |
| 961 | LOG_MUTEX((mutex->obj_name, |
| 962 | (status==PJ_SUCCESS ? "Mutex acquired by thread %s" : "FAILED by %s"), |
| 963 | pj_thread_this()->obj_name)); |
| 964 | |
| 965 | #if PJ_DEBUG |
| 966 | if (status == PJ_SUCCESS) { |
| 967 | mutex->owner = pj_thread_this(); |
| 968 | ++mutex->nesting_level; |
| 969 | } |
| 970 | #endif |
| 971 | |
| 972 | return status; |
| 973 | } |
| 974 | |
| 975 | /* |
| 976 | * pj_mutex_unlock() |
| 977 | */ |
| 978 | PJ_DEF(pj_status_t) pj_mutex_unlock(pj_mutex_t *mutex) |
| 979 | { |
| 980 | pj_status_t status; |
| 981 | |
| 982 | PJ_CHECK_STACK(); |
| 983 | PJ_ASSERT_RETURN(mutex, PJ_EINVAL); |
| 984 | |
| 985 | #if PJ_DEBUG |
| 986 | pj_assert(mutex->owner == pj_thread_this()); |
| 987 | if (--mutex->nesting_level == 0) { |
| 988 | mutex->owner = NULL; |
| 989 | } |
| 990 | #endif |
| 991 | |
| 992 | LOG_MUTEX((mutex->obj_name, "Mutex released by thread %s", |
| 993 | pj_thread_this()->obj_name)); |
| 994 | |
| 995 | #if PJ_WIN32_WINNT >= 0x0400 |
| 996 | LeaveCriticalSection(&mutex->crit); |
| 997 | status=PJ_SUCCESS; |
| 998 | #else |
| 999 | status = ReleaseMutex(mutex->hMutex) ? PJ_SUCCESS : |
| 1000 | PJ_STATUS_FROM_OS(GetLastError()); |
| 1001 | #endif |
| 1002 | return status; |
| 1003 | } |
| 1004 | |
| 1005 | /* |
| 1006 | * pj_mutex_trylock() |
| 1007 | */ |
| 1008 | PJ_DEF(pj_status_t) pj_mutex_trylock(pj_mutex_t *mutex) |
| 1009 | { |
| 1010 | pj_status_t status; |
| 1011 | |
| 1012 | PJ_CHECK_STACK(); |
| 1013 | PJ_ASSERT_RETURN(mutex, PJ_EINVAL); |
| 1014 | |
| 1015 | LOG_MUTEX((mutex->obj_name, "Mutex: thread %s is trying", |
| 1016 | pj_thread_this()->obj_name)); |
| 1017 | |
| 1018 | #if PJ_WIN32_WINNT >= 0x0400 |
| 1019 | status=TryEnterCriticalSection(&mutex->crit) ? PJ_SUCCESS : PJ_EUNKNOWN; |
| 1020 | #else |
| 1021 | status = WaitForSingleObject(mutex->hMutex, 0)==WAIT_OBJECT_0 ? |
| 1022 | PJ_SUCCESS : PJ_ETIMEDOUT; |
| 1023 | #endif |
| 1024 | if (status==PJ_SUCCESS) { |
| 1025 | LOG_MUTEX((mutex->obj_name, "Mutex acquired by thread %s", |
| 1026 | pj_thread_this()->obj_name)); |
| 1027 | |
| 1028 | #if PJ_DEBUG |
| 1029 | mutex->owner = pj_thread_this(); |
| 1030 | ++mutex->nesting_level; |
| 1031 | #endif |
| 1032 | } else { |
| 1033 | LOG_MUTEX((mutex->obj_name, "Mutex: thread %s's trylock() failed", |
| 1034 | pj_thread_this()->obj_name)); |
| 1035 | } |
| 1036 | |
| 1037 | return status; |
| 1038 | } |
| 1039 | |
| 1040 | /* |
| 1041 | * pj_mutex_destroy() |
| 1042 | */ |
| 1043 | PJ_DEF(pj_status_t) pj_mutex_destroy(pj_mutex_t *mutex) |
| 1044 | { |
| 1045 | PJ_CHECK_STACK(); |
| 1046 | PJ_ASSERT_RETURN(mutex, PJ_EINVAL); |
| 1047 | |
| 1048 | LOG_MUTEX((mutex->obj_name, "Mutex destroyed")); |
| 1049 | |
| 1050 | #if PJ_WIN32_WINNT >= 0x0400 |
| 1051 | DeleteCriticalSection(&mutex->crit); |
| 1052 | return PJ_SUCCESS; |
| 1053 | #else |
| 1054 | return CloseHandle(mutex->hMutex) ? PJ_SUCCESS : |
| 1055 | PJ_RETURN_OS_ERROR(GetLastError()); |
| 1056 | #endif |
| 1057 | } |
| 1058 | |
| 1059 | /* |
| 1060 | * pj_mutex_is_locked() |
| 1061 | */ |
| 1062 | PJ_DEF(pj_bool_t) pj_mutex_is_locked(pj_mutex_t *mutex) |
| 1063 | { |
| 1064 | #if PJ_DEBUG |
| 1065 | return mutex->owner == pj_thread_this(); |
| 1066 | #else |
| 1067 | PJ_UNUSED_ARG(mutex); |
| 1068 | pj_assert(!"PJ_DEBUG is not set!"); |
| 1069 | return 1; |
| 1070 | #endif |
| 1071 | } |
| 1072 | |
| 1073 | /////////////////////////////////////////////////////////////////////////////// |
| 1074 | /* |
| 1075 | * Win32 lacks Read/Write mutex, so include the emulation. |
| 1076 | */ |
| 1077 | #include "os_rwmutex.c" |
| 1078 | |
| 1079 | /////////////////////////////////////////////////////////////////////////////// |
| 1080 | /* |
| 1081 | * pj_enter_critical_section() |
| 1082 | */ |
| 1083 | PJ_DEF(void) pj_enter_critical_section(void) |
| 1084 | { |
| 1085 | pj_mutex_lock(&critical_section_mutex); |
| 1086 | } |
| 1087 | |
| 1088 | |
| 1089 | /* |
| 1090 | * pj_leave_critical_section() |
| 1091 | */ |
| 1092 | PJ_DEF(void) pj_leave_critical_section(void) |
| 1093 | { |
| 1094 | pj_mutex_unlock(&critical_section_mutex); |
| 1095 | } |
| 1096 | |
| 1097 | /////////////////////////////////////////////////////////////////////////////// |
| 1098 | #if defined(PJ_HAS_SEMAPHORE) && PJ_HAS_SEMAPHORE != 0 |
| 1099 | |
| 1100 | /* |
| 1101 | * pj_sem_create() |
| 1102 | */ |
| 1103 | PJ_DEF(pj_status_t) pj_sem_create( pj_pool_t *pool, |
| 1104 | const char *name, |
| 1105 | unsigned initial, |
| 1106 | unsigned max, |
| 1107 | pj_sem_t **sem_ptr) |
| 1108 | { |
| 1109 | pj_sem_t *sem; |
| 1110 | |
| 1111 | PJ_CHECK_STACK(); |
| 1112 | PJ_ASSERT_RETURN(pool && sem_ptr, PJ_EINVAL); |
| 1113 | |
| 1114 | sem = pj_pool_alloc(pool, sizeof(*sem)); |
| 1115 | sem->hSemaphore = CreateSemaphore(NULL, initial, max, NULL); |
| 1116 | if (!sem->hSemaphore) |
| 1117 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1118 | |
| 1119 | /* Set name. */ |
| 1120 | if (!name) { |
| 1121 | name = "sem%p"; |
| 1122 | } |
| 1123 | if (strchr(name, '%')) { |
| 1124 | pj_ansi_snprintf(sem->obj_name, PJ_MAX_OBJ_NAME, name, sem); |
| 1125 | } else { |
| 1126 | pj_ansi_strncpy(sem->obj_name, name, PJ_MAX_OBJ_NAME); |
| 1127 | sem->obj_name[PJ_MAX_OBJ_NAME-1] = '\0'; |
| 1128 | } |
| 1129 | |
| 1130 | LOG_MUTEX((sem->obj_name, "Semaphore created")); |
| 1131 | |
| 1132 | *sem_ptr = sem; |
| 1133 | return PJ_SUCCESS; |
| 1134 | } |
| 1135 | |
| 1136 | static pj_status_t pj_sem_wait_for(pj_sem_t *sem, unsigned timeout) |
| 1137 | { |
| 1138 | DWORD result; |
| 1139 | |
| 1140 | PJ_CHECK_STACK(); |
| 1141 | PJ_ASSERT_RETURN(sem, PJ_EINVAL); |
| 1142 | |
| 1143 | LOG_MUTEX((sem->obj_name, "Semaphore: thread %s is waiting", |
| 1144 | pj_thread_this()->obj_name)); |
| 1145 | |
| 1146 | result = WaitForSingleObject(sem->hSemaphore, timeout); |
| 1147 | if (result == WAIT_OBJECT_0) { |
| 1148 | LOG_MUTEX((sem->obj_name, "Semaphore acquired by thread %s", |
| 1149 | pj_thread_this()->obj_name)); |
| 1150 | } else { |
| 1151 | LOG_MUTEX((sem->obj_name, "Semaphore: thread %s FAILED to acquire", |
| 1152 | pj_thread_this()->obj_name)); |
| 1153 | } |
| 1154 | |
| 1155 | if (result==WAIT_OBJECT_0) |
| 1156 | return PJ_SUCCESS; |
| 1157 | else if (result==WAIT_TIMEOUT) |
| 1158 | return PJ_ETIMEDOUT; |
| 1159 | else |
| 1160 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1161 | } |
| 1162 | |
| 1163 | /* |
| 1164 | * pj_sem_wait() |
| 1165 | */ |
| 1166 | PJ_DEF(pj_status_t) pj_sem_wait(pj_sem_t *sem) |
| 1167 | { |
| 1168 | PJ_CHECK_STACK(); |
| 1169 | PJ_ASSERT_RETURN(sem, PJ_EINVAL); |
| 1170 | |
| 1171 | return pj_sem_wait_for(sem, INFINITE); |
| 1172 | } |
| 1173 | |
| 1174 | /* |
| 1175 | * pj_sem_trywait() |
| 1176 | */ |
| 1177 | PJ_DEF(pj_status_t) pj_sem_trywait(pj_sem_t *sem) |
| 1178 | { |
| 1179 | PJ_CHECK_STACK(); |
| 1180 | PJ_ASSERT_RETURN(sem, PJ_EINVAL); |
| 1181 | |
| 1182 | return pj_sem_wait_for(sem, 0); |
| 1183 | } |
| 1184 | |
| 1185 | /* |
| 1186 | * pj_sem_post() |
| 1187 | */ |
| 1188 | PJ_DEF(pj_status_t) pj_sem_post(pj_sem_t *sem) |
| 1189 | { |
| 1190 | PJ_CHECK_STACK(); |
| 1191 | PJ_ASSERT_RETURN(sem, PJ_EINVAL); |
| 1192 | |
| 1193 | LOG_MUTEX((sem->obj_name, "Semaphore released by thread %s", |
| 1194 | pj_thread_this()->obj_name)); |
| 1195 | |
| 1196 | if (ReleaseSemaphore(sem->hSemaphore, 1, NULL)) |
| 1197 | return PJ_SUCCESS; |
| 1198 | else |
| 1199 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1200 | } |
| 1201 | |
| 1202 | /* |
| 1203 | * pj_sem_destroy() |
| 1204 | */ |
| 1205 | PJ_DEF(pj_status_t) pj_sem_destroy(pj_sem_t *sem) |
| 1206 | { |
| 1207 | PJ_CHECK_STACK(); |
| 1208 | PJ_ASSERT_RETURN(sem, PJ_EINVAL); |
| 1209 | |
| 1210 | LOG_MUTEX((sem->obj_name, "Semaphore destroyed by thread %s", |
| 1211 | pj_thread_this()->obj_name)); |
| 1212 | |
| 1213 | if (CloseHandle(sem->hSemaphore)) |
| 1214 | return PJ_SUCCESS; |
| 1215 | else |
| 1216 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1217 | } |
| 1218 | |
| 1219 | #endif /* PJ_HAS_SEMAPHORE */ |
| 1220 | /////////////////////////////////////////////////////////////////////////////// |
| 1221 | |
| 1222 | |
| 1223 | #if defined(PJ_HAS_EVENT_OBJ) && PJ_HAS_EVENT_OBJ != 0 |
| 1224 | |
| 1225 | /* |
| 1226 | * pj_event_create() |
| 1227 | */ |
| 1228 | PJ_DEF(pj_status_t) pj_event_create( pj_pool_t *pool, |
| 1229 | const char *name, |
| 1230 | pj_bool_t manual_reset, |
| 1231 | pj_bool_t initial, |
| 1232 | pj_event_t **event_ptr) |
| 1233 | { |
| 1234 | pj_event_t *event; |
| 1235 | |
| 1236 | PJ_CHECK_STACK(); |
| 1237 | PJ_ASSERT_RETURN(pool && event_ptr, PJ_EINVAL); |
| 1238 | |
| 1239 | event = pj_pool_alloc(pool, sizeof(*event)); |
| 1240 | if (!event) |
| 1241 | return PJ_ENOMEM; |
| 1242 | |
| 1243 | event->hEvent = CreateEvent(NULL, manual_reset?TRUE:FALSE, |
| 1244 | initial?TRUE:FALSE, NULL); |
| 1245 | |
| 1246 | if (!event->hEvent) |
| 1247 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1248 | |
| 1249 | /* Set name. */ |
| 1250 | if (!name) { |
| 1251 | name = "evt%p"; |
| 1252 | } |
| 1253 | if (strchr(name, '%')) { |
| 1254 | pj_ansi_snprintf(event->obj_name, PJ_MAX_OBJ_NAME, name, event); |
| 1255 | } else { |
| 1256 | pj_ansi_strncpy(event->obj_name, name, PJ_MAX_OBJ_NAME); |
| 1257 | event->obj_name[PJ_MAX_OBJ_NAME-1] = '\0'; |
| 1258 | } |
| 1259 | |
| 1260 | PJ_LOG(6, (event->obj_name, "Event created")); |
| 1261 | |
| 1262 | *event_ptr = event; |
| 1263 | return PJ_SUCCESS; |
| 1264 | } |
| 1265 | |
| 1266 | static pj_status_t pj_event_wait_for(pj_event_t *event, unsigned timeout) |
| 1267 | { |
| 1268 | DWORD result; |
| 1269 | |
| 1270 | PJ_CHECK_STACK(); |
| 1271 | PJ_ASSERT_RETURN(event, PJ_EINVAL); |
| 1272 | |
| 1273 | PJ_LOG(6, (event->obj_name, "Event: thread %s is waiting", |
| 1274 | pj_thread_this()->obj_name)); |
| 1275 | |
| 1276 | result = WaitForSingleObject(event->hEvent, timeout); |
| 1277 | if (result == WAIT_OBJECT_0) { |
| 1278 | PJ_LOG(6, (event->obj_name, "Event: thread %s is released", |
| 1279 | pj_thread_this()->obj_name)); |
| 1280 | } else { |
| 1281 | PJ_LOG(6, (event->obj_name, "Event: thread %s FAILED to acquire", |
| 1282 | pj_thread_this()->obj_name)); |
| 1283 | } |
| 1284 | |
| 1285 | if (result==WAIT_OBJECT_0) |
| 1286 | return PJ_SUCCESS; |
| 1287 | else if (result==WAIT_TIMEOUT) |
| 1288 | return PJ_ETIMEDOUT; |
| 1289 | else |
| 1290 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1291 | } |
| 1292 | |
| 1293 | /* |
| 1294 | * pj_event_wait() |
| 1295 | */ |
| 1296 | PJ_DEF(pj_status_t) pj_event_wait(pj_event_t *event) |
| 1297 | { |
| 1298 | PJ_ASSERT_RETURN(event, PJ_EINVAL); |
| 1299 | |
| 1300 | return pj_event_wait_for(event, INFINITE); |
| 1301 | } |
| 1302 | |
| 1303 | /* |
| 1304 | * pj_event_trywait() |
| 1305 | */ |
| 1306 | PJ_DEF(pj_status_t) pj_event_trywait(pj_event_t *event) |
| 1307 | { |
| 1308 | PJ_ASSERT_RETURN(event, PJ_EINVAL); |
| 1309 | |
| 1310 | return pj_event_wait_for(event, 0); |
| 1311 | } |
| 1312 | |
| 1313 | /* |
| 1314 | * pj_event_set() |
| 1315 | */ |
| 1316 | PJ_DEF(pj_status_t) pj_event_set(pj_event_t *event) |
| 1317 | { |
| 1318 | PJ_CHECK_STACK(); |
| 1319 | PJ_ASSERT_RETURN(event, PJ_EINVAL); |
| 1320 | |
| 1321 | PJ_LOG(6, (event->obj_name, "Setting event")); |
| 1322 | |
| 1323 | if (SetEvent(event->hEvent)) |
| 1324 | return PJ_SUCCESS; |
| 1325 | else |
| 1326 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1327 | } |
| 1328 | |
| 1329 | /* |
| 1330 | * pj_event_pulse() |
| 1331 | */ |
| 1332 | PJ_DEF(pj_status_t) pj_event_pulse(pj_event_t *event) |
| 1333 | { |
| 1334 | PJ_CHECK_STACK(); |
| 1335 | PJ_ASSERT_RETURN(event, PJ_EINVAL); |
| 1336 | |
| 1337 | PJ_LOG(6, (event->obj_name, "Pulsing event")); |
| 1338 | |
| 1339 | if (PulseEvent(event->hEvent)) |
| 1340 | return PJ_SUCCESS; |
| 1341 | else |
| 1342 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1343 | } |
| 1344 | |
| 1345 | /* |
| 1346 | * pj_event_reset() |
| 1347 | */ |
| 1348 | PJ_DEF(pj_status_t) pj_event_reset(pj_event_t *event) |
| 1349 | { |
| 1350 | PJ_CHECK_STACK(); |
| 1351 | PJ_ASSERT_RETURN(event, PJ_EINVAL); |
| 1352 | |
| 1353 | PJ_LOG(6, (event->obj_name, "Event is reset")); |
| 1354 | |
| 1355 | if (ResetEvent(event->hEvent)) |
| 1356 | return PJ_SUCCESS; |
| 1357 | else |
| 1358 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1359 | } |
| 1360 | |
| 1361 | /* |
| 1362 | * pj_event_destroy() |
| 1363 | */ |
| 1364 | PJ_DEF(pj_status_t) pj_event_destroy(pj_event_t *event) |
| 1365 | { |
| 1366 | PJ_CHECK_STACK(); |
| 1367 | PJ_ASSERT_RETURN(event, PJ_EINVAL); |
| 1368 | |
| 1369 | PJ_LOG(6, (event->obj_name, "Event is destroying")); |
| 1370 | |
| 1371 | if (CloseHandle(event->hEvent)) |
| 1372 | return PJ_SUCCESS; |
| 1373 | else |
| 1374 | return PJ_RETURN_OS_ERROR(GetLastError()); |
| 1375 | } |
| 1376 | |
| 1377 | #endif /* PJ_HAS_EVENT_OBJ */ |
| 1378 | |
| 1379 | /////////////////////////////////////////////////////////////////////////////// |
| 1380 | #if defined(PJ_TERM_HAS_COLOR) && PJ_TERM_HAS_COLOR != 0 |
| 1381 | /* |
| 1382 | * Terminal color |
| 1383 | */ |
| 1384 | |
| 1385 | static WORD pj_color_to_os_attr(pj_color_t color) |
| 1386 | { |
| 1387 | WORD attr = 0; |
| 1388 | |
| 1389 | if (color & PJ_TERM_COLOR_R) |
| 1390 | attr |= FOREGROUND_RED; |
| 1391 | if (color & PJ_TERM_COLOR_G) |
| 1392 | attr |= FOREGROUND_GREEN; |
| 1393 | if (color & PJ_TERM_COLOR_B) |
| 1394 | attr |= FOREGROUND_BLUE; |
| 1395 | if (color & PJ_TERM_COLOR_BRIGHT) |
| 1396 | attr |= FOREGROUND_INTENSITY; |
| 1397 | |
| 1398 | return attr; |
| 1399 | } |
| 1400 | |
| 1401 | static pj_color_t os_attr_to_pj_color(WORD attr) |
| 1402 | { |
| 1403 | int color = 0; |
| 1404 | |
| 1405 | if (attr & FOREGROUND_RED) |
| 1406 | color |= PJ_TERM_COLOR_R; |
| 1407 | if (attr & FOREGROUND_GREEN) |
| 1408 | color |= PJ_TERM_COLOR_G; |
| 1409 | if (attr & FOREGROUND_BLUE) |
| 1410 | color |= PJ_TERM_COLOR_B; |
| 1411 | if (attr & FOREGROUND_INTENSITY) |
| 1412 | color |= PJ_TERM_COLOR_BRIGHT; |
| 1413 | |
| 1414 | return color; |
| 1415 | } |
| 1416 | |
| 1417 | |
| 1418 | /* |
| 1419 | * pj_term_set_color() |
| 1420 | */ |
| 1421 | PJ_DEF(pj_status_t) pj_term_set_color(pj_color_t color) |
| 1422 | { |
| 1423 | BOOL rc; |
| 1424 | WORD attr = 0; |
| 1425 | |
| 1426 | PJ_CHECK_STACK(); |
| 1427 | |
| 1428 | attr = pj_color_to_os_attr(color); |
| 1429 | rc = SetConsoleTextAttribute( GetStdHandle(STD_OUTPUT_HANDLE), attr); |
| 1430 | return rc ? PJ_SUCCESS : PJ_RETURN_OS_ERROR(GetLastError()); |
| 1431 | } |
| 1432 | |
| 1433 | /* |
| 1434 | * pj_term_get_color() |
| 1435 | * Get current terminal foreground color. |
| 1436 | */ |
| 1437 | PJ_DEF(pj_color_t) pj_term_get_color(void) |
| 1438 | { |
| 1439 | CONSOLE_SCREEN_BUFFER_INFO info; |
| 1440 | |
| 1441 | PJ_CHECK_STACK(); |
| 1442 | |
| 1443 | GetConsoleScreenBufferInfo( GetStdHandle(STD_OUTPUT_HANDLE), &info); |
| 1444 | return os_attr_to_pj_color(info.wAttributes); |
| 1445 | } |
| 1446 | |
| 1447 | #endif /* PJ_TERM_HAS_COLOR */ |
| 1448 | |
| 1449 | /* |
| 1450 | * pj_run_app() |
| 1451 | */ |
| 1452 | PJ_DEF(int) pj_run_app(pj_main_func_ptr main_func, int argc, char *argv[], |
| 1453 | unsigned flags) |
| 1454 | { |
| 1455 | PJ_UNUSED_ARG(flags); |
| 1456 | return (*main_func)(argc, argv); |
| 1457 | } |