/*
 * global.c
 *
 * Description:
 * This translation unit instantiates data associated with the implementation
 * as a whole.
 *
 * --------------------------------------------------------------------------
 *
 *      Pthreads4w - POSIX Threads for Windows
 *      Copyright 1998 John E. Bossom
 *      Copyright 1999-2018, Pthreads4w contributors
 *
 *      Homepage: https://sourceforge.net/projects/pthreads4w/
 *
 *      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:
 *
 *      https://sourceforge.net/p/pthreads4w/wiki/Contributors/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#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-detected */
int __ptw32_features = 0;

/*
 * Global [process wide] thread sequence Number
 */
unsigned __int64 __ptw32_threadSeqNumber = 0;

/*
 * 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_cancellation) (PAPCFUNC, HANDLE, DWORD) = NULL;

/*
 * Global lock for managing pthread_t struct reuse.
 */
__ptw32_mcs_lock_t __ptw32_thread_reuse_lock = 0;

/*
 * Global lock for testing internal state of statically declared mutexes.
 */
__ptw32_mcs_lock_t __ptw32_mutex_test_init_lock = 0;

/*
 * Global lock for testing internal state of PTHREAD_COND_INITIALIZER
 * created condition variables.
 */
__ptw32_mcs_lock_t __ptw32_cond_test_init_lock = 0;

/*
 * Global lock for testing internal state of PTHREAD_RWLOCK_INITIALIZER
 * created read/write locks.
 */
__ptw32_mcs_lock_t __ptw32_rwlock_test_init_lock = 0;

/*
 * Global lock for testing internal state of PTHREAD_SPINLOCK_INITIALIZER
 * created spin locks.
 */
__ptw32_mcs_lock_t __ptw32_spinlock_test_init_lock = 0;

/*
 * Global lock for condition variable linked list. The list exists
 * to wake up CVs when a WM_TIMECHANGE message arrives. See
 * w32_TimeChangeHandler.c.
 */
__ptw32_mcs_lock_t __ptw32_cond_list_lock = 0;

#if defined(_UWIN)
/*
 * Keep a count of the number of threads.
 */
int pthread_count = 0;
#endif