diff options
author | marha <marha@users.sourceforge.net> | 2011-01-17 18:27:35 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2011-01-17 18:27:35 +0000 |
commit | aaa4964a2277a1e265da4e7b91d5b1e3c3faa84e (patch) | |
tree | 36dd7bf367b1932098af857b547648980325b336 /pthreads/pthread_key_delete.c | |
parent | 9845f4671b0f731f868ea0f39844114ab0f70a3c (diff) | |
download | vcxsrv-aaa4964a2277a1e265da4e7b91d5b1e3c3faa84e.tar.gz vcxsrv-aaa4964a2277a1e265da4e7b91d5b1e3c3faa84e.tar.bz2 vcxsrv-aaa4964a2277a1e265da4e7b91d5b1e3c3faa84e.zip |
cvs update pthreads
Diffstat (limited to 'pthreads/pthread_key_delete.c')
-rw-r--r-- | pthreads/pthread_key_delete.c | 266 |
1 files changed, 133 insertions, 133 deletions
diff --git a/pthreads/pthread_key_delete.c b/pthreads/pthread_key_delete.c index 7da9b2fb6..a92b6465f 100644 --- a/pthreads/pthread_key_delete.c +++ b/pthreads/pthread_key_delete.c @@ -1,133 +1,133 @@ -/* - * pthread_key_delete.c - * - * Description: - * POSIX thread functions which implement thread-specific data (TSD). - * - * -------------------------------------------------------------------------- - * - * 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 -pthread_key_delete (pthread_key_t key) - /* - * ------------------------------------------------------ - * DOCPUBLIC - * This function deletes a thread-specific data key. This - * does not change the value of the thread specific data key - * for any thread and does not run the key's destructor - * in any thread so it should be used with caution. - * - * PARAMETERS - * key - * pointer to an instance of pthread_key_t - * - * - * DESCRIPTION - * This function deletes a thread-specific data key. This - * does not change the value of the thread specific data key - * for any thread and does not run the key's destructor - * in any thread so it should be used with caution. - * - * RESULTS - * 0 successfully deleted the key, - * EINVAL key is invalid, - * - * ------------------------------------------------------ - */ -{ - int result = 0; - - if (key != NULL) - { - if (key->threads != NULL && - key->destructor != NULL && - pthread_mutex_lock (&(key->keyLock)) == 0) - { - ThreadKeyAssoc *assoc; - /* - * Run through all Thread<-->Key associations - * for this key. - * - * While we hold at least one of the locks guarding - * the assoc, we know that the assoc pointed to by - * key->threads is valid. - */ - while ((assoc = (ThreadKeyAssoc *) key->threads) != NULL) - { - ptw32_thread_t * thread = assoc->thread; - - if (assoc == NULL) - { - /* Finished */ - break; - } - - if (pthread_mutex_lock (&(thread->threadLock)) == 0) - { - /* - * Since we are starting at the head of the key's threads - * chain, this will also point key->threads at the next assoc. - * While we hold key->keyLock, no other thread can insert - * a new assoc via pthread_setspecific. - */ - ptw32_tkAssocDestroy (assoc); - (void) pthread_mutex_unlock (&(thread->threadLock)); - } - else - { - /* Thread or lock is no longer valid? */ - ptw32_tkAssocDestroy (assoc); - } - } - pthread_mutex_unlock (&(key->keyLock)); - } - - TlsFree (key->key); - if (key->destructor != NULL) - { - /* A thread could be holding the keyLock */ - while (EBUSY == pthread_mutex_destroy (&(key->keyLock))) - { - Sleep(1); // Ugly. - } - } - -#if defined( _DEBUG ) - memset ((char *) key, 0, sizeof (*key)); -#endif - free (key); - } - - return (result); -} +/*
+ * pthread_key_delete.c
+ *
+ * Description:
+ * POSIX thread functions which implement thread-specific data (TSD).
+ *
+ * --------------------------------------------------------------------------
+ *
+ * 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
+pthread_key_delete (pthread_key_t key)
+ /*
+ * ------------------------------------------------------
+ * DOCPUBLIC
+ * This function deletes a thread-specific data key. This
+ * does not change the value of the thread specific data key
+ * for any thread and does not run the key's destructor
+ * in any thread so it should be used with caution.
+ *
+ * PARAMETERS
+ * key
+ * pointer to an instance of pthread_key_t
+ *
+ *
+ * DESCRIPTION
+ * This function deletes a thread-specific data key. This
+ * does not change the value of the thread specific data key
+ * for any thread and does not run the key's destructor
+ * in any thread so it should be used with caution.
+ *
+ * RESULTS
+ * 0 successfully deleted the key,
+ * EINVAL key is invalid,
+ *
+ * ------------------------------------------------------
+ */
+{
+ int result = 0;
+
+ if (key != NULL)
+ {
+ if (key->threads != NULL &&
+ key->destructor != NULL &&
+ pthread_mutex_lock (&(key->keyLock)) == 0)
+ {
+ ThreadKeyAssoc *assoc;
+ /*
+ * Run through all Thread<-->Key associations
+ * for this key.
+ *
+ * While we hold at least one of the locks guarding
+ * the assoc, we know that the assoc pointed to by
+ * key->threads is valid.
+ */
+ while ((assoc = (ThreadKeyAssoc *) key->threads) != NULL)
+ {
+ ptw32_thread_t * thread = assoc->thread;
+
+ if (assoc == NULL)
+ {
+ /* Finished */
+ break;
+ }
+
+ if (pthread_mutex_lock (&(thread->threadLock)) == 0)
+ {
+ /*
+ * Since we are starting at the head of the key's threads
+ * chain, this will also point key->threads at the next assoc.
+ * While we hold key->keyLock, no other thread can insert
+ * a new assoc via pthread_setspecific.
+ */
+ ptw32_tkAssocDestroy (assoc);
+ (void) pthread_mutex_unlock (&(thread->threadLock));
+ }
+ else
+ {
+ /* Thread or lock is no longer valid? */
+ ptw32_tkAssocDestroy (assoc);
+ }
+ }
+ pthread_mutex_unlock (&(key->keyLock));
+ }
+
+ TlsFree (key->key);
+ if (key->destructor != NULL)
+ {
+ /* A thread could be holding the keyLock */
+ while (EBUSY == pthread_mutex_destroy (&(key->keyLock)))
+ {
+ Sleep(0); /* Ugly */
+ }
+ }
+
+#if defined( _DEBUG )
+ memset ((char *) key, 0, sizeof (*key));
+#endif
+ free (key);
+ }
+
+ return (result);
+}
|