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/*
* ptw32_processInitialize.c
*
* Description:
* This translation unit implements routines which are private to
* the implementation and may be used throughout it.
*
* --------------------------------------------------------------------------
*
* Pthreads4w - POSIX Threads Library for Win32
* Copyright(C) 1998 John E. Bossom
* Copyright(C) 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/
*
* This file is part of Pthreads4w.
*
* Pthreads4w is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pthreads4w 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Pthreads4w. If not, see <http://www.gnu.org/licenses/>. *
*/
#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 */
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