| 1 | |
| 2 | /* |
| 3 | * Copyright © 2001 Novell, Inc. All Rights Reserved. |
| 4 | * |
| 5 | * You may distribute under the terms of either the GNU General Public |
| 6 | * License or the Artistic License, as specified in the README file. |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * FILENAME : NWTInfo.c |
| 12 | * DESCRIPTION : Thread-local storage for Perl. |
| 13 | * The thread's information is stored in a hashed table that is based on |
| 14 | * the lowest 5 bits of the current thread ID. |
| 15 | * Author : SGP, HYAK |
| 16 | * Date : January 2001. |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | |
| 22 | #include "win32ish.h" // For "BOOL", "TRUE" and "FALSE" |
| 23 | #include "nwtinfo.h" |
| 24 | |
| 25 | #ifdef MPK_ON |
| 26 | #include <mpktypes.h> |
| 27 | #include <mpkapis.h> |
| 28 | #else |
| 29 | #include <nwsemaph.h> |
| 30 | #endif //MPK_ON |
| 31 | |
| 32 | // Number of entries in the hashtable |
| 33 | // |
| 34 | #define NUM_ENTRIES 32 /* 2^5 */ |
| 35 | |
| 36 | |
| 37 | // macro to calculate the hash index for a given Thread ID |
| 38 | // |
| 39 | #define INDEXOF(tid) ((tid) & 0x1f) |
| 40 | |
| 41 | |
| 42 | // Semaphore to control access to global linked list |
| 43 | // |
| 44 | #ifdef MPK_ON |
| 45 | static SEMAPHORE g_tinfoSem = NULL; |
| 46 | static SEMAPHORE g_tCtxSem = NULL; |
| 47 | #else |
| 48 | static LONG g_tinfoSem = 0L; |
| 49 | static LONG g_tCtxSem = 0L; |
| 50 | #endif //MPK_ON |
| 51 | |
| 52 | // Hash table of thread information structures |
| 53 | // |
| 54 | ThreadInfo* g_ThreadInfo[NUM_ENTRIES]; |
| 55 | ThreadContext* g_ThreadCtx; |
| 56 | |
| 57 | |
| 58 | |
| 59 | /*============================================================================================ |
| 60 | |
| 61 | Function : fnTerminateThreadInfo |
| 62 | |
| 63 | Description : This function undoes fnInitializeThreadInfo; call once per NLM instance. |
| 64 | |
| 65 | Parameters : None. |
| 66 | |
| 67 | Returns : Boolean. |
| 68 | |
| 69 | ==============================================================================================*/ |
| 70 | |
| 71 | BOOL fnTerminateThreadInfo(void) |
| 72 | { |
| 73 | int index = 0; |
| 74 | |
| 75 | if (g_tinfoSem) |
| 76 | { |
| 77 | #ifdef MPK_ON |
| 78 | kSemaphoreWait(g_tinfoSem); |
| 79 | #else |
| 80 | WaitOnLocalSemaphore(g_tinfoSem); |
| 81 | #endif //MPK_ON |
| 82 | for (index = 0; index < NUM_ENTRIES; index++) |
| 83 | { |
| 84 | if (g_ThreadInfo[index] != NULL) |
| 85 | { |
| 86 | #ifdef MPK_ON |
| 87 | kSemaphoreSignal(g_tinfoSem); |
| 88 | #else |
| 89 | SignalLocalSemaphore(g_tinfoSem); |
| 90 | #endif //MPK_ON |
| 91 | return FALSE; |
| 92 | } |
| 93 | } |
| 94 | #ifdef MPK_ON |
| 95 | kSemaphoreFree(g_tinfoSem); |
| 96 | g_tinfoSem = NULL; |
| 97 | #else |
| 98 | CloseLocalSemaphore(g_tinfoSem); |
| 99 | g_tinfoSem = 0; |
| 100 | #endif //MPK_ON |
| 101 | } |
| 102 | |
| 103 | return TRUE; |
| 104 | } |
| 105 | |
| 106 | |
| 107 | /*============================================================================================ |
| 108 | |
| 109 | Function : fnInitializeThreadInfo |
| 110 | |
| 111 | Description : Initializes the global ThreadInfo hashtable and semaphore. |
| 112 | Call once per NLM instance |
| 113 | |
| 114 | Parameters : None. |
| 115 | |
| 116 | Returns : Nothing. |
| 117 | |
| 118 | ==============================================================================================*/ |
| 119 | |
| 120 | void fnInitializeThreadInfo(void) |
| 121 | { |
| 122 | int index = 0; |
| 123 | |
| 124 | if (g_tinfoSem) |
| 125 | return; |
| 126 | |
| 127 | #ifdef MPK_ON |
| 128 | g_tinfoSem = kSemaphoreAlloc((BYTE *)"threadInfo", 1); |
| 129 | #else |
| 130 | g_tinfoSem = OpenLocalSemaphore(1); |
| 131 | #endif //MPK_ON |
| 132 | |
| 133 | |
| 134 | for (index = 0; index < NUM_ENTRIES; index++) |
| 135 | g_ThreadInfo[index] = NULL; |
| 136 | |
| 137 | return; |
| 138 | } |
| 139 | |
| 140 | |
| 141 | /*============================================================================================ |
| 142 | |
| 143 | Function : fnRegisterWithThreadTable |
| 144 | |
| 145 | Description : This function registers/adds a new thread with the thread table. |
| 146 | |
| 147 | Parameters : None. |
| 148 | |
| 149 | Returns : Boolean. |
| 150 | |
| 151 | ==============================================================================================*/ |
| 152 | |
| 153 | BOOL fnRegisterWithThreadTable(void) |
| 154 | { |
| 155 | ThreadInfo* tinfo = NULL; |
| 156 | |
| 157 | #ifdef MPK_ON |
| 158 | tinfo = fnAddThreadInfo(labs((int)kCurrentThread())); |
| 159 | #else |
| 160 | tinfo = fnAddThreadInfo(GetThreadID()); |
| 161 | #endif //MPK_ON |
| 162 | |
| 163 | if (!tinfo) |
| 164 | return FALSE; |
| 165 | else |
| 166 | return TRUE; |
| 167 | } |
| 168 | |
| 169 | |
| 170 | /*============================================================================================ |
| 171 | |
| 172 | Function : fnUnregisterWithThreadTable |
| 173 | |
| 174 | Description : This function unregisters/removes a thread from the thread table. |
| 175 | |
| 176 | Parameters : None. |
| 177 | |
| 178 | Returns : Boolean. |
| 179 | |
| 180 | ==============================================================================================*/ |
| 181 | |
| 182 | BOOL fnUnregisterWithThreadTable(void) |
| 183 | { |
| 184 | #ifdef MPK_ON |
| 185 | return fnRemoveThreadInfo(labs((int)kCurrentThread())); |
| 186 | #else |
| 187 | return fnRemoveThreadInfo(GetThreadID()); |
| 188 | #endif //MPK_ON |
| 189 | } |
| 190 | |
| 191 | |
| 192 | /*============================================================================================ |
| 193 | |
| 194 | Function : fnAddThreadInfo |
| 195 | |
| 196 | Description : Adds a new ThreadInfo for the requested thread. |
| 197 | |
| 198 | Parameters : tid (IN) - ID of the thread. |
| 199 | |
| 200 | Returns : Pointer to the ThreadInfo Structure. |
| 201 | |
| 202 | ==============================================================================================*/ |
| 203 | |
| 204 | ThreadInfo* fnAddThreadInfo(int tid) |
| 205 | { |
| 206 | ThreadInfo* tip = NULL; |
| 207 | int index = 0; |
| 208 | |
| 209 | if (g_tinfoSem) |
| 210 | { |
| 211 | #ifdef MPK_ON |
| 212 | kSemaphoreWait(g_tinfoSem); |
| 213 | #else |
| 214 | WaitOnLocalSemaphore(g_tinfoSem); |
| 215 | #endif //MPK_ON |
| 216 | } |
| 217 | |
| 218 | // Add a new one to the beginning of the hash entry |
| 219 | // |
| 220 | tip = (ThreadInfo *) malloc(sizeof(ThreadInfo)); |
| 221 | if (tip == NULL) |
| 222 | { |
| 223 | if (g_tinfoSem) |
| 224 | { |
| 225 | #ifdef MPK_ON |
| 226 | kSemaphoreSignal(g_tinfoSem); |
| 227 | #else |
| 228 | SignalLocalSemaphore(g_tinfoSem); |
| 229 | #endif //MPK_ON |
| 230 | } |
| 231 | return NULL; |
| 232 | } |
| 233 | index = INDEXOF(tid); // just take the bottom five bits |
| 234 | tip->next = g_ThreadInfo[index]; |
| 235 | tip->tid = tid; |
| 236 | tip->m_dontTouchHashLists = FALSE; |
| 237 | tip->m_allocList = NULL; |
| 238 | |
| 239 | g_ThreadInfo [index] = tip; |
| 240 | if (g_tinfoSem) |
| 241 | { |
| 242 | #ifdef MPK_ON |
| 243 | kSemaphoreSignal(g_tinfoSem); |
| 244 | #else |
| 245 | SignalLocalSemaphore(g_tinfoSem); |
| 246 | #endif //MPK_ON |
| 247 | } |
| 248 | |
| 249 | return tip; |
| 250 | } |
| 251 | |
| 252 | |
| 253 | /*============================================================================================ |
| 254 | |
| 255 | Function : fnRemoveThreadInfo |
| 256 | |
| 257 | Description : Frees the specified thread info structure and removes it from the |
| 258 | global linked list. |
| 259 | |
| 260 | Parameters : tid (IN) - ID of the thread. |
| 261 | |
| 262 | Returns : Boolean. |
| 263 | |
| 264 | ==============================================================================================*/ |
| 265 | |
| 266 | BOOL fnRemoveThreadInfo(int tid) |
| 267 | { |
| 268 | ThreadInfo* tip = NULL; |
| 269 | ThreadInfo* prevt = NULL; |
| 270 | int index = INDEXOF(tid); // just take the bottom five bits |
| 271 | |
| 272 | if (g_tinfoSem) |
| 273 | { |
| 274 | #ifdef MPK_ON |
| 275 | kSemaphoreWait(g_tinfoSem); |
| 276 | #else |
| 277 | WaitOnLocalSemaphore(g_tinfoSem); |
| 278 | #endif //MPK_ON |
| 279 | } |
| 280 | |
| 281 | for (tip = g_ThreadInfo[index]; tip != NULL; tip = tip->next) |
| 282 | { |
| 283 | if (tip->tid == tid) |
| 284 | { |
| 285 | if (prevt == NULL) |
| 286 | g_ThreadInfo[index] = tip->next; |
| 287 | else |
| 288 | prevt->next = tip->next; |
| 289 | |
| 290 | free(tip); |
| 291 | tip=NULL; |
| 292 | if (g_tinfoSem) |
| 293 | { |
| 294 | #ifdef MPK_ON |
| 295 | kSemaphoreSignal(g_tinfoSem); |
| 296 | #else |
| 297 | SignalLocalSemaphore(g_tinfoSem); |
| 298 | #endif //MPK_ON |
| 299 | } |
| 300 | |
| 301 | return TRUE; |
| 302 | } |
| 303 | prevt = tip; |
| 304 | } |
| 305 | |
| 306 | if (g_tinfoSem) |
| 307 | { |
| 308 | #ifdef MPK_ON |
| 309 | kSemaphoreSignal(g_tinfoSem); |
| 310 | #else |
| 311 | SignalLocalSemaphore(g_tinfoSem); |
| 312 | #endif //MPK_ON |
| 313 | } |
| 314 | |
| 315 | return FALSE; // entry not found |
| 316 | } |
| 317 | |
| 318 | |
| 319 | /*============================================================================================ |
| 320 | |
| 321 | Function : fnGetThreadInfo |
| 322 | |
| 323 | Description : Returns the thread info for the given thread ID or NULL if not successful. |
| 324 | |
| 325 | Parameters : tid (IN) - ID of the thread. |
| 326 | |
| 327 | Returns : Pointer to the ThreadInfo Structure. |
| 328 | |
| 329 | ==============================================================================================*/ |
| 330 | |
| 331 | ThreadInfo* fnGetThreadInfo(int tid) |
| 332 | { |
| 333 | ThreadInfo* tip; |
| 334 | int index = INDEXOF(tid); // just take the bottom five bits |
| 335 | |
| 336 | if (g_tinfoSem) { |
| 337 | #ifdef MPK_ON |
| 338 | kSemaphoreWait(g_tinfoSem); |
| 339 | #else |
| 340 | WaitOnLocalSemaphore(g_tinfoSem); |
| 341 | #endif //MPK_ON |
| 342 | } |
| 343 | |
| 344 | // see if this is already in the table at the index'th offset |
| 345 | // |
| 346 | for (tip = g_ThreadInfo[index]; tip != NULL; tip = tip->next) |
| 347 | { |
| 348 | if (tip->tid == tid) |
| 349 | { |
| 350 | if (g_tinfoSem) |
| 351 | { |
| 352 | #ifdef MPK_ON |
| 353 | kSemaphoreSignal(g_tinfoSem); |
| 354 | #else |
| 355 | SignalLocalSemaphore(g_tinfoSem); |
| 356 | #endif //MPK_ON |
| 357 | } |
| 358 | return tip; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | if (g_tinfoSem) |
| 363 | { |
| 364 | #ifdef MPK_ON |
| 365 | kSemaphoreSignal(g_tinfoSem); |
| 366 | #else |
| 367 | SignalLocalSemaphore(g_tinfoSem); |
| 368 | #endif //MPK_ON |
| 369 | } |
| 370 | |
| 371 | return NULL; |
| 372 | } |
| 373 | |
| 374 | BOOL fnInsertHashListAddrs(void *addrs, BOOL dontTouchHashList) |
| 375 | { |
| 376 | ThreadInfo* tip; |
| 377 | int index,tid; |
| 378 | |
| 379 | if (g_tinfoSem) |
| 380 | { |
| 381 | #ifdef MPK_ON |
| 382 | kSemaphoreWait(g_tinfoSem); |
| 383 | #else |
| 384 | WaitOnLocalSemaphore(g_tinfoSem); |
| 385 | #endif //MPK_ON |
| 386 | } |
| 387 | |
| 388 | #ifdef MPK_ON |
| 389 | tid=index = abs(kCurrentThread()); |
| 390 | #else |
| 391 | tid=index = GetThreadID(); |
| 392 | #endif //MPK_ON |
| 393 | |
| 394 | index = INDEXOF(index); // just take the bottom five bits |
| 395 | |
| 396 | // see if this is already in the table at the index'th offset |
| 397 | // |
| 398 | for (tip = g_ThreadInfo[index]; tip != NULL; tip = tip->next) |
| 399 | { |
| 400 | if (tip->tid == tid) |
| 401 | { |
| 402 | if (g_tinfoSem) |
| 403 | { |
| 404 | #ifdef MPK_ON |
| 405 | kSemaphoreSignal(g_tinfoSem); |
| 406 | #else |
| 407 | SignalLocalSemaphore(g_tinfoSem); |
| 408 | #endif //MPK_ON |
| 409 | } |
| 410 | tip->m_allocList = addrs; |
| 411 | tip->m_dontTouchHashLists = dontTouchHashList; |
| 412 | return TRUE; |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | if (g_tinfoSem) |
| 417 | { |
| 418 | #ifdef MPK_ON |
| 419 | kSemaphoreSignal(g_tinfoSem); |
| 420 | #else |
| 421 | SignalLocalSemaphore(g_tinfoSem); |
| 422 | #endif //MPK_ON |
| 423 | } |
| 424 | |
| 425 | return FALSE; |
| 426 | } |
| 427 | |
| 428 | BOOL fnGetHashListAddrs(void **addrs, BOOL *dontTouchHashList) |
| 429 | { |
| 430 | ThreadInfo* tip; |
| 431 | int index,tid; |
| 432 | |
| 433 | if (g_tinfoSem) |
| 434 | { |
| 435 | #ifdef MPK_ON |
| 436 | kSemaphoreWait(g_tinfoSem); |
| 437 | #else |
| 438 | WaitOnLocalSemaphore(g_tinfoSem); |
| 439 | #endif //MPK_ON |
| 440 | } |
| 441 | |
| 442 | #ifdef MPK_ON |
| 443 | tid=index = abs(kCurrentThread()); |
| 444 | #else |
| 445 | tid=index = GetThreadID(); |
| 446 | #endif //MPK_ON |
| 447 | |
| 448 | index = INDEXOF(index); // just take the bottom five bits |
| 449 | |
| 450 | // see if this is already in the table at the index'th offset |
| 451 | // |
| 452 | for (tip = g_ThreadInfo[index]; tip != NULL; tip = tip->next) |
| 453 | { |
| 454 | if (tip->tid == tid) |
| 455 | { |
| 456 | if (g_tinfoSem) |
| 457 | { |
| 458 | #ifdef MPK_ON |
| 459 | kSemaphoreSignal(g_tinfoSem); |
| 460 | #else |
| 461 | SignalLocalSemaphore(g_tinfoSem); |
| 462 | #endif //MPK_ON |
| 463 | } |
| 464 | *addrs = tip->m_allocList; |
| 465 | *dontTouchHashList = tip->m_dontTouchHashLists; |
| 466 | return TRUE; |
| 467 | } |
| 468 | } |
| 469 | |
| 470 | if (g_tinfoSem) |
| 471 | { |
| 472 | #ifdef MPK_ON |
| 473 | kSemaphoreSignal(g_tinfoSem); |
| 474 | #else |
| 475 | SignalLocalSemaphore(g_tinfoSem); |
| 476 | #endif //MPK_ON |
| 477 | } |
| 478 | |
| 479 | return FALSE; |
| 480 | } |
| 481 | |
| 482 | |
| 483 | /*============================================================================================ |
| 484 | |
| 485 | Function : fnInitializeThreadCtx |
| 486 | |
| 487 | Description : Initialises the thread context. |
| 488 | |
| 489 | Parameters : None. |
| 490 | |
| 491 | Returns : Nothing. |
| 492 | |
| 493 | ==============================================================================================*/ |
| 494 | |
| 495 | long fnInitializeThreadCtx(void) |
| 496 | { |
| 497 | int index = 0; |
| 498 | //long tid; |
| 499 | |
| 500 | if (!g_tCtxSem) { |
| 501 | #ifdef MPK_ON |
| 502 | g_tCtxSem = kSemaphoreAlloc((BYTE *)"threadCtx", 1); |
| 503 | #else |
| 504 | g_tCtxSem = OpenLocalSemaphore(1); |
| 505 | #endif //MPK_ON |
| 506 | |
| 507 | g_ThreadCtx =NULL; |
| 508 | } |
| 509 | |
| 510 | return 0l; |
| 511 | } |
| 512 | |
| 513 | |
| 514 | /*============================================================================================ |
| 515 | |
| 516 | Function : fnAddThreadCtx |
| 517 | |
| 518 | Description : Add a new thread context. |
| 519 | |
| 520 | Parameters : lTLSIndex (IN) - Index |
| 521 | t (IN) - void pointer. |
| 522 | |
| 523 | Returns : Pointer to ThreadContext structure. |
| 524 | |
| 525 | ==============================================================================================*/ |
| 526 | |
| 527 | ThreadContext* fnAddThreadCtx(long lTLSIndex, void *t) |
| 528 | { |
| 529 | ThreadContext* tip = NULL; |
| 530 | ThreadContext* temp = NULL; |
| 531 | |
| 532 | if (g_tCtxSem) |
| 533 | { |
| 534 | #ifdef MPK_ON |
| 535 | kSemaphoreWait(g_tCtxSem); |
| 536 | #else |
| 537 | WaitOnLocalSemaphore(g_tCtxSem); |
| 538 | #endif //MPK_ON |
| 539 | } |
| 540 | |
| 541 | // add a new one to the beginning of the list |
| 542 | // |
| 543 | tip = (ThreadContext *) malloc(sizeof(ThreadContext)); |
| 544 | if (tip == NULL) |
| 545 | { |
| 546 | if (g_tCtxSem) |
| 547 | { |
| 548 | #ifdef MPK_ON |
| 549 | kSemaphoreSignal(g_tCtxSem); |
| 550 | #else |
| 551 | SignalLocalSemaphore(g_tCtxSem); |
| 552 | #endif //MPK_ON |
| 553 | } |
| 554 | return NULL; |
| 555 | } |
| 556 | |
| 557 | #ifdef MPK_ON |
| 558 | lTLSIndex = labs(kCurrentThread()); |
| 559 | #else |
| 560 | lTLSIndex = GetThreadID(); |
| 561 | #endif //MPK_ON |
| 562 | |
| 563 | tip->next = NULL; |
| 564 | tip->tid = lTLSIndex; |
| 565 | tip->tInfo = t; |
| 566 | |
| 567 | if(g_ThreadCtx==NULL) { |
| 568 | g_ThreadCtx = tip; |
| 569 | } else { |
| 570 | int count=0; |
| 571 | //Traverse to the end |
| 572 | temp = g_ThreadCtx; |
| 573 | while(temp->next != NULL) |
| 574 | { |
| 575 | temp = temp->next; |
| 576 | count++; |
| 577 | } |
| 578 | temp->next = tip; |
| 579 | } |
| 580 | |
| 581 | if (g_tCtxSem) |
| 582 | { |
| 583 | #ifdef MPK_ON |
| 584 | kSemaphoreSignal(g_tCtxSem); |
| 585 | #else |
| 586 | SignalLocalSemaphore(g_tCtxSem); |
| 587 | #endif //MPK_ON |
| 588 | } |
| 589 | return tip; |
| 590 | } |
| 591 | |
| 592 | |
| 593 | /*============================================================================================ |
| 594 | |
| 595 | Function : fnRemoveThreadCtx |
| 596 | |
| 597 | Description : Removes a thread context. |
| 598 | |
| 599 | Parameters : lTLSIndex (IN) - Index |
| 600 | |
| 601 | Returns : Boolean. |
| 602 | |
| 603 | ==============================================================================================*/ |
| 604 | |
| 605 | BOOL fnRemoveThreadCtx(long lTLSIndex) |
| 606 | { |
| 607 | ThreadContext* tip = NULL; |
| 608 | ThreadContext* prevt = NULL; |
| 609 | |
| 610 | if (g_tCtxSem) |
| 611 | { |
| 612 | #ifdef MPK_ON |
| 613 | kSemaphoreWait(g_tCtxSem); |
| 614 | #else |
| 615 | WaitOnLocalSemaphore(g_tCtxSem); |
| 616 | #endif //MPK_ON |
| 617 | } |
| 618 | |
| 619 | #ifdef MPK_ON |
| 620 | lTLSIndex = labs(kCurrentThread()); |
| 621 | #else |
| 622 | lTLSIndex = GetThreadID(); |
| 623 | #endif //MPK_ON |
| 624 | |
| 625 | tip = g_ThreadCtx; |
| 626 | while(tip) { |
| 627 | if (tip->tid == lTLSIndex) { |
| 628 | if (prevt == NULL) |
| 629 | g_ThreadCtx = tip->next; |
| 630 | else |
| 631 | prevt->next = tip->next; |
| 632 | |
| 633 | free(tip); |
| 634 | tip=NULL; |
| 635 | if (g_tCtxSem) |
| 636 | { |
| 637 | #ifdef MPK_ON |
| 638 | kSemaphoreSignal(g_tCtxSem); |
| 639 | #else |
| 640 | SignalLocalSemaphore(g_tCtxSem); |
| 641 | #endif //MPK_ON |
| 642 | } |
| 643 | return TRUE; |
| 644 | } |
| 645 | prevt = tip; |
| 646 | tip = tip->next; |
| 647 | } |
| 648 | |
| 649 | if (g_tCtxSem) |
| 650 | { |
| 651 | #ifdef MPK_ON |
| 652 | kSemaphoreSignal(g_tCtxSem); |
| 653 | #else |
| 654 | SignalLocalSemaphore(g_tCtxSem); |
| 655 | #endif //MPK_ON |
| 656 | } |
| 657 | |
| 658 | return FALSE; // entry not found |
| 659 | } |
| 660 | |
| 661 | |
| 662 | /*============================================================================================ |
| 663 | |
| 664 | Function : fnGetThreadCtx |
| 665 | |
| 666 | Description : Get a thread context. |
| 667 | |
| 668 | Parameters : lTLSIndex (IN) - Index |
| 669 | |
| 670 | Returns : Nothing. |
| 671 | |
| 672 | ==============================================================================================*/ |
| 673 | |
| 674 | void* fnGetThreadCtx(long lTLSIndex) |
| 675 | { |
| 676 | ThreadContext* tip; |
| 677 | |
| 678 | if (g_tCtxSem) |
| 679 | { |
| 680 | #ifdef MPK_ON |
| 681 | kSemaphoreWait(g_tCtxSem); |
| 682 | #else |
| 683 | WaitOnLocalSemaphore(g_tCtxSem); |
| 684 | #endif //MPK_ON |
| 685 | } |
| 686 | |
| 687 | #ifdef MPK_ON |
| 688 | lTLSIndex = labs(kCurrentThread()); |
| 689 | #else |
| 690 | lTLSIndex = GetThreadID(); |
| 691 | #endif //MPK_ON |
| 692 | |
| 693 | tip = g_ThreadCtx; |
| 694 | while(tip) { |
| 695 | if (tip->tid == lTLSIndex) { |
| 696 | if (g_tCtxSem) |
| 697 | { |
| 698 | #ifdef MPK_ON |
| 699 | kSemaphoreSignal(g_tCtxSem); |
| 700 | #else |
| 701 | SignalLocalSemaphore(g_tCtxSem); |
| 702 | #endif //MPK_ON |
| 703 | } |
| 704 | return (tip->tInfo); |
| 705 | } |
| 706 | tip=tip->next; |
| 707 | } |
| 708 | |
| 709 | if (g_tCtxSem) |
| 710 | { |
| 711 | #ifdef MPK_ON |
| 712 | kSemaphoreSignal(g_tCtxSem); |
| 713 | #else |
| 714 | SignalLocalSemaphore(g_tCtxSem); |
| 715 | #endif //MPK_ON |
| 716 | } |
| 717 | |
| 718 | return NULL; |
| 719 | } |
| 720 | |