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Diffstat (limited to 'libpthread/nptl/pthread_join.c')
-rw-r--r--libpthread/nptl/pthread_join.c108
1 files changed, 0 insertions, 108 deletions
diff --git a/libpthread/nptl/pthread_join.c b/libpthread/nptl/pthread_join.c
deleted file mode 100644
index f94128dd9..000000000
--- a/libpthread/nptl/pthread_join.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C 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 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <errno.h>
-#include <stdlib.h>
-
-#include "atomic.h"
-#include "pthreadP.h"
-
-
-static void
-cleanup (void *arg)
-{
- *(void **) arg = NULL;
-}
-
-
-int
-pthread_join (threadid, thread_return)
- pthread_t threadid;
- void **thread_return;
-{
- struct pthread *self;
- struct pthread *pd = (struct pthread *) threadid;
-
- /* Make sure the descriptor is valid. */
- if (INVALID_NOT_TERMINATED_TD_P (pd))
- /* Not a valid thread handle. */
- return ESRCH;
-
- /* Is the thread joinable?. */
- if (IS_DETACHED (pd))
- /* We cannot wait for the thread. */
- return EINVAL;
-
- self = THREAD_SELF;
- if (pd == self
- || (self->joinid == pd
- && (pd->cancelhandling
- & (CANCELING_BITMASK | CANCELED_BITMASK | EXITING_BITMASK
- | TERMINATED_BITMASK)) == 0))
- /* This is a deadlock situation. The threads are waiting for each
- other to finish. Note that this is a "may" error. To be 100%
- sure we catch this error we would have to lock the data
- structures but it is not necessary. In the unlikely case that
- two threads are really caught in this situation they will
- deadlock. It is the programmer's problem to figure this
- out. */
- return EDEADLK;
-
- /* Wait for the thread to finish. If it is already locked something
- is wrong. There can only be one waiter. */
- if (__builtin_expect (atomic_compare_and_exchange_bool_acq (&pd->joinid,
- self,
- NULL), 0))
- /* There is already somebody waiting for the thread. */
- return EINVAL;
-
-
- /* During the wait we change to asynchronous cancellation. If we
- are cancelled the thread we are waiting for must be marked as
- un-wait-ed for again. */
- pthread_cleanup_push (cleanup, &pd->joinid);
-
- /* Switch to asynchronous cancellation. */
- int oldtype = CANCEL_ASYNC ();
-
-
- /* Wait for the child. */
- lll_wait_tid (pd->tid);
-
-
- /* Restore cancellation mode. */
- CANCEL_RESET (oldtype);
-
- /* Remove the handler. */
- pthread_cleanup_pop (0);
-
-
- /* We mark the thread as terminated and as joined. */
- pd->tid = -1;
-
- /* Store the return value if the caller is interested. */
- if (thread_return != NULL)
- *thread_return = pd->result;
-
-
- /* Free the TCB. */
- __free_tcb (pd);
-
- return 0;
-}