1 /* 2 * global.c 3 * 4 * Description: 5 * This translation unit instantiates data associated with the implementation 6 * as a whole. 7 * 8 * -------------------------------------------------------------------------- 9 * 10 * Pthreads-win32 - POSIX Threads Library for Win32 11 * Copyright(C) 1998 John E. Bossom 12 * Copyright(C) 1999,2005 Pthreads-win32 contributors 13 * 14 * Contact Email: rpj@callisto.canberra.edu.au 15 * 16 * The current list of contributors is contained 17 * in the file CONTRIBUTORS included with the source 18 * code distribution. The list can also be seen at the 19 * following World Wide Web location: 20 * http://sources.redhat.com/pthreads-win32/contributors.html 21 * 22 * This library is free software; you can redistribute it and/or 23 * modify it under the terms of the GNU Lesser General Public 24 * License as published by the Free Software Foundation; either 25 * version 2 of the License, or (at your option) any later version. 26 * 27 * This library is distributed in the hope that it will be useful, 28 * but WITHOUT ANY WARRANTY; without even the implied warranty of 29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 30 * Lesser General Public License for more details. 31 * 32 * You should have received a copy of the GNU Lesser General Public 33 * License along with this library in the file COPYING.LIB; 34 * if not, write to the Free Software Foundation, Inc., 35 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA 36 */ 37 38 #include "pthread.h" 39 #include "implement.h" 40 41 42 int ptw32_processInitialized = PTW32_FALSE; 43 ptw32_thread_t * ptw32_threadReuseTop = PTW32_THREAD_REUSE_EMPTY; 44 ptw32_thread_t * ptw32_threadReuseBottom = PTW32_THREAD_REUSE_EMPTY; 45 pthread_key_t ptw32_selfThreadKey = NULL; 46 pthread_key_t ptw32_cleanupKey = NULL; 47 pthread_cond_t ptw32_cond_list_head = NULL; 48 pthread_cond_t ptw32_cond_list_tail = NULL; 49 50 int ptw32_concurrency = 0; 51 52 /* What features have been auto-detected */ 53 int ptw32_features = 0; 54 55 /* 56 * Global [process wide] thread sequence Number 57 */ 58 unsigned __int64 ptw32_threadSeqNumber = 0; 59 60 /* 61 * Function pointer to QueueUserAPCEx if it exists, otherwise 62 * it will be set at runtime to a substitute routine which cannot unblock 63 * blocked threads. 64 */ 65 DWORD (*ptw32_register_cancelation) (PAPCFUNC, HANDLE, DWORD) = NULL; 66 67 /* 68 * Global lock for managing pthread_t struct reuse. 69 */ 70 ptw32_mcs_lock_t ptw32_thread_reuse_lock = 0; 71 72 /* 73 * Global lock for testing internal state of statically declared mutexes. 74 */ 75 ptw32_mcs_lock_t ptw32_mutex_test_init_lock = 0; 76 77 /* 78 * Global lock for testing internal state of PTHREAD_COND_INITIALIZER 79 * created condition variables. 80 */ 81 ptw32_mcs_lock_t ptw32_cond_test_init_lock = 0; 82 83 /* 84 * Global lock for testing internal state of PTHREAD_RWLOCK_INITIALIZER 85 * created read/write locks. 86 */ 87 ptw32_mcs_lock_t ptw32_rwlock_test_init_lock = 0; 88 89 /* 90 * Global lock for testing internal state of PTHREAD_SPINLOCK_INITIALIZER 91 * created spin locks. 92 */ 93 ptw32_mcs_lock_t ptw32_spinlock_test_init_lock = 0; 94 95 /* 96 * Global lock for condition variable linked list. The list exists 97 * to wake up CVs when a WM_TIMECHANGE message arrives. See 98 * w32_TimeChangeHandler.c. 99 */ 100 ptw32_mcs_lock_t ptw32_cond_list_lock = 0; 101 102 #if defined(_UWIN) 103 /* 104 * Keep a count of the number of threads. 105 */ 106 int pthread_count = 0; 107 #endif 108