summaryrefslogtreecommitdiffstats
path: root/cas.h
diff options
context:
space:
mode:
authorJérémy Zurcher <jeremy@asynk.ch>2009-11-07 19:21:49 +0100
committerJérémy Zurcher <jeremy@asynk.ch>2009-11-07 19:21:49 +0100
commit7d6c42c89447947de20e4b50390b6c3b3ee8ff9f (patch)
tree8d98aa697fb03ed7d39472bc1222f691c7677f4f /cas.h
parent67f57ab2fb7932b1c43ad669e846b425f6fa1f2b (diff)
downloadlock_free-7d6c42c89447947de20e4b50390b6c3b3ee8ff9f.zip
lock_free-7d6c42c89447947de20e4b50390b6c3b3ee8ff9f.tar.gz
cas and container tests
Diffstat (limited to 'cas.h')
-rw-r--r--cas.h40
1 files changed, 0 insertions, 40 deletions
diff --git a/cas.h b/cas.h
deleted file mode 100644
index b04f7c3..0000000
--- a/cas.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * File : cas.c
- * Author : Jérémy Zurcher <jeremy@asynk.ch>
- * Date : 01/11/09
- * License :
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-/* CMPXCHG8B m64 Compare EDX:EAX with m64. If equal, set ZF and load ECX:EBX into m64. Else, clear ZF and load m64 into EDX:EAX. */
-static inline unsigned int compare_and_swap(volatile unsigned long long *mem,
- volatile unsigned long long old,
- volatile unsigned long long new) {
- char result;
- __asm__ __volatile__("lock; cmpxchg8b %0; setz %1;"
- : "=m"(*mem), "=q"(result)
- : "m"(*mem), "d" ((unsigned long)(old>>32)), "a" ((unsigned long)old),
- "c" ((unsigned long)(new>>32)), "b" ((unsigned long)new)
- : "memory");
- return (int)result;
-}
-