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/*
* ptw32_callUserDestroyRoutines.c
*
* Description:
* This translation unit implements routines which are private to
* the implementation and may be used throughout it.
*
* --------------------------------------------------------------------------
*
* 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"
#ifdef __cplusplus
# if ! defined (_MSC_VER) && ! (defined(__GNUC__) && __GNUC__ < 3) && ! defined(__WATCOMC__)
using
std::terminate;
# endif
#endif
void
ptw32_callUserDestroyRoutines (pthread_t thread)
/*
* -------------------------------------------------------------------
* DOCPRIVATE
*
* This the routine runs through all thread keys and calls
* the destroy routines on the user's data for the current thread.
* It simulates the behaviour of POSIX Threads.
*
* PARAMETERS
* thread
* an instance of pthread_t
*
* RETURNS
* N/A
* -------------------------------------------------------------------
*/
{
ThreadKeyAssoc **
nextP;
ThreadKeyAssoc *
assoc;
if (thread.p != NULL)
{
/*
* Run through all Thread<-->Key associations
* for the current thread.
* If the pthread_key_t still exits (ie the assoc->key
* is not NULL) then call the user's TSD destroy routine.
* Notes:
* If assoc->key is NULL, then the user previously called
* PThreadKeyDestroy. The association is now only referenced
* by the current thread and must be released; otherwise
* the assoc will be destroyed when the key is destroyed.
*/
nextP = (ThreadKeyAssoc **) &((ptw32_thread_t *)thread.p)->keys;
assoc = *nextP;
while (assoc != NULL)
{
if (pthread_mutex_lock (&(assoc->lock)) == 0)
{
pthread_key_t k;
pthread_t nil = {NULL, 0};
if ((k = assoc->key) != NULL)
{
/*
* Key still active; pthread_key_delete
* will block on this same mutex before
* it can release actual key; therefore,
* key is valid and we can call the destroy
* routine;
*/
void * value = NULL;
value = pthread_getspecific (k);
if (value != NULL && k->destructor != NULL)
{
#ifdef __cplusplus
try
{
/*
* Run the caller's cleanup routine.
*/
(*(k->destructor)) (value);
}
catch (...)
{
/*
* A system unexpected exception has occurred
* running the user's destructor.
* We get control back within this block in case
* the application has set up it's own terminate
* handler. Since we are leaving the thread we
* should not get any internal pthreads
* exceptions.
*/
terminate ();
}
#else /* __cplusplus */
/*
* Run the caller's cleanup routine.
*/
(*(k->destructor)) (value);
#endif /* __cplusplus */
}
}
/*
* mark assoc->thread as NULL to indicate the
* thread no longer references this association
*/
assoc->thread = nil;
/*
* Remove association from the pthread_t chain
*/
*nextP = assoc->nextKey;
pthread_mutex_unlock (&(assoc->lock));
ptw32_tkAssocDestroy (assoc);
assoc = *nextP;
}
}
}
} /* ptw32_callUserDestroyRoutines */
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