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authorEric Andersen <andersen@codepoet.org>2005-05-20 19:02:51 +0000
committerEric Andersen <andersen@codepoet.org>2005-05-20 19:02:51 +0000
commit124af9f4b2b77b1510d88cfc8092c788d7e513c7 (patch)
treeccce720bef4c1c604417e2082cf9997a8d6dd7ab /libpthread/nptl/sem_close.c
parent8028f35dbe29c5ace3883005e08ac91d873553b2 (diff)
Back out nptl changes, which for now will be done in branches/uClibc-nptl
Diffstat (limited to 'libpthread/nptl/sem_close.c')
-rw-r--r--libpthread/nptl/sem_close.c81
1 files changed, 0 insertions, 81 deletions
diff --git a/libpthread/nptl/sem_close.c b/libpthread/nptl/sem_close.c
deleted file mode 100644
index 279522d08..000000000
--- a/libpthread/nptl/sem_close.c
+++ /dev/null
@@ -1,81 +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 <search.h>
-#include <sys/mman.h>
-#include "semaphoreP.h"
-
-
-/* Global variables to parametrize the walk function. This works
- since we always have to use locks. And we have to use the twalk
- function since the entries are not sorted wrt the mapping
- address. */
-static sem_t *the_sem;
-static struct inuse_sem *rec;
-
-static void
-walker (const void *inodep, const VISIT which, const int depth)
-{
- struct inuse_sem *nodep = *(struct inuse_sem **) inodep;
-
- if (nodep->sem == the_sem)
- rec = nodep;
-}
-
-
-int
-sem_close (sem)
- sem_t *sem;
-{
- int result = 0;
-
- /* Get the lock. */
- lll_lock (__sem_mappings_lock);
-
- /* Locate the entry for the mapping the caller provided. */
- rec = NULL;
- the_sem = sem;
- twalk (__sem_mappings, walker);
- if (rec != NULL)
- {
- /* Check the reference counter. If it is going to be zero, free
- all the resources. */
- if (--rec->refcnt == 0)
- {
- /* Remove the record from the tree. */
- (void) tdelete (rec, &__sem_mappings, __sem_search);
-
- result = munmap (rec->sem, sizeof (sem_t));
-
- free (rec);
- }
- }
- else
- {
- /* This is no valid semaphore. */
- result = -1;
- __set_errno (EINVAL);
- }
-
- /* Release the lock. */
- lll_unlock (__sem_mappings_lock);
-
- return result;
-}