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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/pthread_mutex_trylock.c
parent8028f35dbe29c5ace3883005e08ac91d873553b2 (diff)
Back out nptl changes, which for now will be done in branches/uClibc-nptl
Diffstat (limited to 'libpthread/nptl/pthread_mutex_trylock.c')
-rw-r--r--libpthread/nptl/pthread_mutex_trylock.c77
1 files changed, 0 insertions, 77 deletions
diff --git a/libpthread/nptl/pthread_mutex_trylock.c b/libpthread/nptl/pthread_mutex_trylock.c
deleted file mode 100644
index 7008af3d9..000000000
--- a/libpthread/nptl/pthread_mutex_trylock.c
+++ /dev/null
@@ -1,77 +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 "pthreadP.h"
-#include <lowlevellock.h>
-
-
-int
-__pthread_mutex_trylock (mutex)
- pthread_mutex_t *mutex;
-{
- pid_t id;
-
- switch (__builtin_expect (mutex->__data.__kind, PTHREAD_MUTEX_TIMED_NP))
- {
- /* Recursive mutex. */
- case PTHREAD_MUTEX_RECURSIVE_NP:
- id = THREAD_GETMEM (THREAD_SELF, tid);
- /* Check whether we already hold the mutex. */
- if (mutex->__data.__owner == id)
- {
- /* Just bump the counter. */
- if (__builtin_expect (mutex->__data.__count + 1 == 0, 0))
- /* Overflow of the counter. */
- return EAGAIN;
-
- ++mutex->__data.__count;
- return 0;
- }
-
- if (lll_mutex_trylock (mutex->__data.__lock) == 0)
- {
- /* Record the ownership. */
- mutex->__data.__owner = id;
- mutex->__data.__count = 1;
- ++mutex->__data.__nusers;
- return 0;
- }
- break;
-
- case PTHREAD_MUTEX_ERRORCHECK_NP:
- /* Error checking mutex. We do not check for deadlocks. */
- default:
- /* Correct code cannot set any other type. */
- case PTHREAD_MUTEX_TIMED_NP:
- case PTHREAD_MUTEX_ADAPTIVE_NP:
- /* Normal mutex. */
- if (lll_mutex_trylock (mutex->__data.__lock) == 0)
- {
- /* Record the ownership. */
- mutex->__data.__owner = THREAD_GETMEM (THREAD_SELF, tid);
- ++mutex->__data.__nusers;
-
- return 0;
- }
- }
-
- return EBUSY;
-}
-strong_alias (__pthread_mutex_trylock, pthread_mutex_trylock)