15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ptw32_tkAssocDestroy.c 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Description: 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This translation unit implements routines which are private to 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the implementation and may be used throughout it. 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * -------------------------------------------------------------------------- 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Pthreads-win32 - POSIX Threads Library for Win32 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright(C) 1998 John E. Bossom 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright(C) 1999,2005 Pthreads-win32 contributors 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Contact Email: rpj@callisto.canberra.edu.au 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The current list of contributors is contained 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * in the file CONTRIBUTORS included with the source 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * code distribution. The list can also be seen at the 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * following World Wide Web location: 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * http://sources.redhat.com/pthreads-win32/contributors.html 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This library is free software; you can redistribute it and/or 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * modify it under the terms of the GNU Lesser General Public 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * License as published by the Free Software Foundation; either 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * version 2 of the License, or (at your option) any later version. 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This library is distributed in the hope that it will be useful, 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Lesser General Public License for more details. 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * You should have received a copy of the GNU Lesser General Public 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * License along with this library in the file COPYING.LIB; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * if not, write to the Free Software Foundation, Inc., 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "pthread.h" 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "implement.h" 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ptw32_tkAssocDestroy (ThreadKeyAssoc * assoc) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ------------------------------------------------------------------- 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This routine releases all resources for the given ThreadKeyAssoc 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * once it is no longer being referenced 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ie) either the key or thread has stopped referencing it. 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Parameters: 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * assoc 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * an instance of ThreadKeyAssoc. 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Returns: 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * N/A 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ------------------------------------------------------------------- 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Both key->keyLock and thread->threadLock are locked before 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * entry to this routine. 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (assoc != NULL) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ThreadKeyAssoc * prev, * next; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Remove assoc from thread's keys chain */ 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prev = assoc->prevKey; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) next = assoc->nextKey; 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (prev != NULL) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prev->nextKey = next; 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (next != NULL) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) next->prevKey = prev; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (assoc->thread->keys == assoc) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* We're at the head of the thread's keys chain */ 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assoc->thread->keys = next; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (assoc->thread->nextAssoc == assoc) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Thread is exiting and we're deleting the assoc to be processed next. 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Hand thread the assoc after this one. 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assoc->thread->nextAssoc = next; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Remove assoc from key's threads chain */ 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prev = assoc->prevThread; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) next = assoc->nextThread; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (prev != NULL) 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prev->nextThread = next; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (next != NULL) 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) next->prevThread = prev; 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (assoc->key->threads == assoc) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* We're at the head of the key's threads chain */ 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assoc->key->threads = next; 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) free (assoc); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} /* ptw32_tkAssocDestroy */ 115