1 /* 2 * ptw32_new.c 3 * 4 * Description: 5 * This translation unit implements miscellaneous thread functions. 6 * 7 * -------------------------------------------------------------------------- 8 * 9 * Pthreads-win32 - POSIX Threads Library for Win32 10 * Copyright(C) 1998 John E. Bossom 11 * Copyright(C) 1999,2005 Pthreads-win32 contributors 12 * 13 * Contact Email: rpj (at) callisto.canberra.edu.au 14 * 15 * The current list of contributors is contained 16 * in the file CONTRIBUTORS included with the source 17 * code distribution. The list can also be seen at the 18 * following World Wide Web location: 19 * http://sources.redhat.com/pthreads-win32/contributors.html 20 * 21 * This library is free software; you can redistribute it and/or 22 * modify it under the terms of the GNU Lesser General Public 23 * License as published by the Free Software Foundation; either 24 * version 2 of the License, or (at your option) any later version. 25 * 26 * This library is distributed in the hope that it will be useful, 27 * but WITHOUT ANY WARRANTY; without even the implied warranty of 28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 29 * Lesser General Public License for more details. 30 * 31 * You should have received a copy of the GNU Lesser General Public 32 * License along with this library in the file COPYING.LIB; 33 * if not, write to the Free Software Foundation, Inc., 34 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 35 */ 36 37 #include "pthread.h" 38 #include "implement.h" 39 40 41 pthread_t 42 ptw32_new (void) 43 { 44 pthread_t t; 45 pthread_t nil = {NULL, 0}; 46 ptw32_thread_t * tp; 47 48 /* 49 * If there's a reusable pthread_t then use it. 50 */ 51 t = ptw32_threadReusePop (); 52 53 if (NULL != t.p) 54 { 55 tp = (ptw32_thread_t *) t.p; 56 } 57 else 58 { 59 /* No reuse threads available */ 60 tp = (ptw32_thread_t *) calloc (1, sizeof(ptw32_thread_t)); 61 62 if (tp == NULL) 63 { 64 return nil; 65 } 66 67 /* ptHandle.p needs to point to it's parent ptw32_thread_t. */ 68 t.p = tp->ptHandle.p = tp; 69 t.x = tp->ptHandle.x = 0; 70 } 71 72 /* Set default state. */ 73 tp->seqNumber = ++ptw32_threadSeqNumber; 74 tp->sched_priority = THREAD_PRIORITY_NORMAL; 75 tp->detachState = PTHREAD_CREATE_JOINABLE; 76 tp->cancelState = PTHREAD_CANCEL_ENABLE; 77 tp->cancelType = PTHREAD_CANCEL_DEFERRED; 78 tp->stateLock = 0; 79 tp->threadLock = 0; 80 tp->robustMxListLock = 0; 81 tp->robustMxList = NULL; 82 tp->cancelEvent = CreateEvent (0, (int) PTW32_TRUE, /* manualReset */ 83 (int) PTW32_FALSE, /* setSignaled */ 84 NULL); 85 86 if (tp->cancelEvent == NULL) 87 { 88 ptw32_threadReusePush (tp->ptHandle); 89 return nil; 90 } 91 92 return t; 93 94 } 95