diff options
Diffstat (limited to 'pthread/pt-dealloc.c')
-rw-r--r-- | pthread/pt-dealloc.c | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/pthread/pt-dealloc.c b/pthread/pt-dealloc.c deleted file mode 100644 index 92fe1fda..00000000 --- a/pthread/pt-dealloc.c +++ /dev/null @@ -1,64 +0,0 @@ -/* Deallocate a thread structure. - Copyright (C) 2000, 2008 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <assert.h> -#include <pthread.h> -#include <stdlib.h> - -#include <pt-internal.h> - -/* List of thread structures corresponding to free thread IDs. */ -extern struct __pthread *__pthread_free_threads; -extern pthread_mutex_t __pthread_free_threads_lock; - - -/* Deallocate the thread structure for PTHREAD. */ -void -__pthread_dealloc (struct __pthread *pthread) -{ - assert (pthread->state != PTHREAD_TERMINATED); - - /* Withdraw this thread from the thread ID lookup table. */ - __pthread_setid (pthread->thread, NULL); - - /* Mark the thread as terminated. We broadcast the condition - here to prevent pthread_join from waiting for this thread to - exit where it was never really started. Such a call to - pthread_join is completely bogus, but unfortunately allowed - by the standards. */ - __pthread_mutex_lock (&pthread->state_lock); - if (pthread->state != PTHREAD_EXITED) - pthread_cond_broadcast (&pthread->state_cond); - __pthread_mutex_unlock (&pthread->state_lock); - - /* We do not actually deallocate the thread structure, but add it to - a list of re-usable thread structures. */ - pthread_mutex_lock (&__pthread_free_threads_lock); - __pthread_enqueue (&__pthread_free_threads, pthread); - pthread_mutex_unlock (&__pthread_free_threads_lock); - - /* Setting PTHREAD->STATE to PTHREAD_TERMINATED makes this TCB - available for reuse. After that point, we can no longer assume - that PTHREAD is valid. - - Note that it is safe to not lock this update to PTHREAD->STATE: - the only way that it can now be accessed is in __pthread_alloc, - which reads this variable. */ - pthread->state = PTHREAD_TERMINATED; -} |