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authorTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
committerTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
commit22e28216336da876e1fd17f380ce42eaf1446769 (patch)
tree444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavutil/atomic.c
parentae5e8541f6e06e64c28719467cdf366ac57aff31 (diff)
chasing indexing error
Diffstat (limited to 'ffmpeg/libavutil/atomic.c')
-rw-r--r--ffmpeg/libavutil/atomic.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/ffmpeg/libavutil/atomic.c b/ffmpeg/libavutil/atomic.c
deleted file mode 100644
index b7b3872..0000000
--- a/ffmpeg/libavutil/atomic.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "config.h"
-#include "atomic.h"
-
-#if !HAVE_ATOMICS_NATIVE
-
-#if HAVE_PTHREADS
-
-#include <pthread.h>
-
-static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER;
-
-int avpriv_atomic_int_get(volatile int *ptr)
-{
- int res;
-
- pthread_mutex_lock(&atomic_lock);
- res = *ptr;
- pthread_mutex_unlock(&atomic_lock);
-
- return res;
-}
-
-void avpriv_atomic_int_set(volatile int *ptr, int val)
-{
- pthread_mutex_lock(&atomic_lock);
- *ptr = val;
- pthread_mutex_unlock(&atomic_lock);
-}
-
-int avpriv_atomic_int_add_and_fetch(volatile int *ptr, int inc)
-{
- int res;
-
- pthread_mutex_lock(&atomic_lock);
- *ptr += inc;
- res = *ptr;
- pthread_mutex_unlock(&atomic_lock);
-
- return res;
-}
-
-void *avpriv_atomic_ptr_cas(void * volatile *ptr, void *oldval, void *newval)
-{
- void *ret;
- pthread_mutex_lock(&atomic_lock);
- ret = *ptr;
- if (*ptr == oldval)
- *ptr = newval;
- pthread_mutex_unlock(&atomic_lock);
- return ret;
-}
-
-#elif !HAVE_THREADS
-
-int avpriv_atomic_int_get(volatile int *ptr)
-{
- return *ptr;
-}
-
-void avpriv_atomic_int_set(volatile int *ptr, int val)
-{
- *ptr = val;
-}
-
-int avpriv_atomic_int_add_and_fetch(volatile int *ptr, int inc)
-{
- *ptr += inc;
- return *ptr;
-}
-
-void *avpriv_atomic_ptr_cas(void * volatile *ptr, void *oldval, void *newval)
-{
- if (*ptr == oldval) {
- *ptr = newval;
- return oldval;
- }
- return *ptr;
-}
-
-#else
-
-#error "Threading is enabled, but there is no implementation of atomic operations available"
-
-#endif /* HAVE_PTHREADS */
-
-#endif /* !HAVE_ATOMICS_NATIVE */
-
-#ifdef TEST
-#include "avassert.h"
-
-int main(void)
-{
- volatile int val = 1;
- int res;
-
- res = avpriv_atomic_int_add_and_fetch(&val, 1);
- av_assert0(res == 2);
- avpriv_atomic_int_set(&val, 3);
- res = avpriv_atomic_int_get(&val);
- av_assert0(res == 3);
-
- return 0;
-}
-#endif