/*
* ptw32_processInitialize.c
*
* Description:
* This translation unit implements routines which are private to
* the implementation and may be used throughout it.
*
* --------------------------------------------------------------------------
*
* 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_processInitialize (void)
/*
* ------------------------------------------------------
* DOCPRIVATE
* This function performs process wide initialization for
* the pthread library.
*
* PARAMETERS
* N/A
*
* DESCRIPTION
* This function performs process wide initialization for
* the pthread library.
* If successful, this routine sets the global variable
* __ptw32_processInitialized to TRUE.
*
* RESULTS
* TRUE if successful,
* FALSE otherwise
*
* ------------------------------------------------------
*/
{
if (__ptw32_processInitialized)
{
return __PTW32_TRUE;
}
/*
* Explicitly initialise all variables from global.c
*/
__ptw32_threadReuseTop = __PTW32_THREAD_REUSE_EMPTY;
__ptw32_threadReuseBottom = __PTW32_THREAD_REUSE_EMPTY;
__ptw32_selfThreadKey = NULL;
__ptw32_cleanupKey = NULL;
__ptw32_cond_list_head = NULL;
__ptw32_cond_list_tail = NULL;
__ptw32_concurrency = 0;
/* What features have been auto-detected */
__ptw32_features = 0;
/*
* Global [process wide] thread sequence Number
*/
__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.
*/
__ptw32_register_cancellation = NULL;
/*
* Global lock for managing pthread_t struct reuse.
*/
__ptw32_thread_reuse_lock = 0;
/*
* Global lock for testing internal state of statically declared mutexes.
*/
__ptw32_mutex_test_init_lock = 0;
/*
* Global lock for testing internal state of PTHREAD_COND_INITIALIZER
* created condition variables.
*/
__ptw32_cond_test_init_lock = 0;
/*
* Global lock for testing internal state of PTHREAD_RWLOCK_INITIALIZER
* created read/write locks.
*/
__ptw32_rwlock_test_init_lock = 0;
/*
* Global lock for testing internal state of PTHREAD_SPINLOCK_INITIALIZER
* created spin locks.
*/
__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_cond_list_lock = 0;
#if defined(_UWIN)
/*
* Keep a count of the number of threads.
*/
pthread_count = 0;
#endif
__ptw32_processInitialized = __PTW32_TRUE;
/*
* Initialize Keys
*/
if ((pthread_key_create (&__ptw32_selfThreadKey, NULL) != 0) ||
(pthread_key_create (&__ptw32_cleanupKey, NULL) != 0))
{
__ptw32_processTerminate ();
}
return (__ptw32_processInitialized);
} /* processInitialize */
