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Diffstat (limited to 'pthreads/global.c')
| -rw-r--r-- | pthreads/global.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/pthreads/global.c b/pthreads/global.c new file mode 100644 index 000000000..2b5542298 --- /dev/null +++ b/pthreads/global.c @@ -0,0 +1,115 @@ +/* + * global.c + * + * Description: + * This translation unit instantiates data associated with the implementation + * as a whole. + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2005 Pthreads-win32 contributors + * + * Contact Email: rpj@callisto.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#include "pthread.h" +#include "implement.h" + + +int ptw32_processInitialized = PTW32_FALSE; +ptw32_thread_t * ptw32_threadReuseTop = PTW32_THREAD_REUSE_EMPTY; +ptw32_thread_t * ptw32_threadReuseBottom = PTW32_THREAD_REUSE_EMPTY; +pthread_key_t ptw32_selfThreadKey = NULL; +pthread_key_t ptw32_cleanupKey = NULL; +pthread_cond_t ptw32_cond_list_head = NULL; +pthread_cond_t ptw32_cond_list_tail = NULL; + +int ptw32_concurrency = 0; + +/* What features have been auto-detaected */ +int ptw32_features = 0; + +BOOL ptw32_smp_system = PTW32_TRUE; /* Safer if assumed true initially. */ + +/* + * Function pointer to InterlockedCompareExchange if it exists, otherwise + * it will be set at runtime to a substitute local version with the same + * functionality but may be architecture specific. + */ +PTW32_INTERLOCKED_LONG + (WINAPI * ptw32_interlocked_compare_exchange) (PTW32_INTERLOCKED_LPLONG, + PTW32_INTERLOCKED_LONG, + PTW32_INTERLOCKED_LONG) = + NULL; + +/* + * Function pointer to QueueUserAPCEx if it exists, otherwise + * it will be set at runtime to a substitute routine which cannot unblock + * blocked threads. + */ +DWORD (*ptw32_register_cancelation) (PAPCFUNC, HANDLE, DWORD) = NULL; + +/* + * Global lock for managing pthread_t struct reuse. + */ +CRITICAL_SECTION ptw32_thread_reuse_lock; + +/* + * Global lock for testing internal state of statically declared mutexes. + */ +CRITICAL_SECTION ptw32_mutex_test_init_lock; + +/* + * Global lock for testing internal state of PTHREAD_COND_INITIALIZER + * created condition variables. + */ +CRITICAL_SECTION ptw32_cond_test_init_lock; + +/* + * Global lock for testing internal state of PTHREAD_RWLOCK_INITIALIZER + * created read/write locks. + */ +CRITICAL_SECTION ptw32_rwlock_test_init_lock; + +/* + * Global lock for testing internal state of PTHREAD_SPINLOCK_INITIALIZER + * created spin locks. + */ +CRITICAL_SECTION ptw32_spinlock_test_init_lock; + +/* + * Global lock for condition variable linked list. The list exists + * to wake up CVs when a WM_TIMECHANGE message arrives. See + * w32_TimeChangeHandler.c. + */ +CRITICAL_SECTION ptw32_cond_list_lock; + +#ifdef _UWIN +/* + * Keep a count of the number of threads. + */ +int pthread_count = 0; +#endif |