[Boost-commit] svn:boost r47331 - sandbox/memory/boost/detail/winapi/atomic

From: xushiweizh_at_[hidden]
Date: 2008-07-11 19:18:35

Author: xushiwei
Date: 2008-07-11 19:18:35 EDT (Fri, 11 Jul 2008)
New Revision: 47331
URL: http://svn.boost.org/trac/boost/changeset/47331

Log:
TaggedCompareAndSwap
Text files modified: 
   sandbox/memory/boost/detail/winapi/atomic/windows.hpp |    32 ++++++++++++++++++++++++++++++++        
   1 files changed, 32 insertions(+), 0 deletions(-)

Modified: sandbox/memory/boost/detail/winapi/atomic/windows.hpp
==============================================================================
--- sandbox/memory/boost/detail/winapi/atomic/windows.hpp	(original)
+++ sandbox/memory/boost/detail/winapi/atomic/windows.hpp	2008-07-11 19:18:35 EDT (Fri, 11 Jul 2008)
@@ -87,6 +87,22 @@
         return ok;
 }
 
+__forceinline bool WINAPI TaggedCompareAndSwap(
+	LONG32 Destination[2], LONG32 Exchange, LONG32 NewTag, LONG32 Comperand, LONG32 Tag)
+{
+	bool ok;
+	__asm {
+		mov eax, Comperand
+		mov edx, Tag
+		mov ebx, Exchange
+		mov ecx, NewTag
+		mov edi, Destination
+		lock cmpxchg8b [edi]
+		setz ok
+	}
+	return ok;
+}
+
 #if defined(_WIN32)
 
 template <class Type>
@@ -97,6 +113,14 @@
                 (LONG32*)Destination, (LONG32)Comperand, (LONG32)Exchange, (LONG32)Tag);
 }
 
+template <class Type>
+__forceinline bool WINAPI TaggedCompareAndSwap(
+	Type* Destination[2], Type* Exchange, Type* NewTag, Type* Comperand, Type* Tag)
+{
+	return TaggedCompareAndSwap(
+		(LONG32*)Destination, (LONG32)Exchange, (LONG32)NewTag, (LONG32)Comperand, (LONG32)Tag);
+}
+
 #elif defined(_WIN64)
 
 template <class Type>
@@ -107,6 +131,14 @@
                 (LONG64*)Destination, (LONG64)Comperand, (LONG64)Exchange, (LONG64)Tag);
 }
 
+template <class Type>
+__forceinline bool WINAPI TaggedCompareAndSwap(
+	Type* Destination[2], Type* Exchange, Type* NewTag, Type* Comperand, Type* Tag)
+{
+	return TaggedCompareAndSwap(
+		(LONG64*)Destination, (LONG64)Exchange, (LONG64)NewTag, (LONG64)Comperand, (LONG64)Tag);
+}
+
 #endif
 
 // -------------------------------------------------------------------------