add optimized addref / release for x86

diff --git a/lib/base/object.h b/lib/base/object.h
index 8cea2cd..8ac92b8 100644 (file)
--- a/lib/base/object.h
+++ b/lib/base/object.h
@@ -140,6 +140,28 @@ public:
                                if (!ref) \
                                        delete this; \
                        }
+       #elif defined(__i386__)
+               #define DECLARE_REF(x)                  \
+                       private: oRefCount ref;         \
+                       public: void AddRef();          \
+                                       void Release();
+               #define DEFINE_REF(c) \
+                       void c::AddRef() \
+                       { \
+                               __asm__ __volatile__( \
+                               "               incl    %0      \n" \
+                               : "=m" (ref.count) \
+                               : "m" (ref.count); \
+                       } \
+                       void c::Release() \
+                       { \
+                               __asm__ __volatile__( \
+                               "               decl    %0      \n" \
+                               : "=m" (ref.count) \
+                               : "m" (ref.count); \
+                               if (!ref) \
+                                       delete this; \
+                       }
        #else
                #warning use non optimized implementation of refcounting.
                #define DECLARE_REF(x)                  \