Changeset 165725 in webkit for trunk/Source/WTF/wtf/FastMalloc.cpp

Timestamp:

Mar 17, 2014, 1:29:12 AM (11 years ago)

Author:

[email protected]

Message:

[Mac] WTFThreadData should use _pthread_getspecific_direct().
<​https://webkit.org/b/130320>

Hack WTFThreadData to use a direct key for TLS access when available.
This mechanism uses a dedicated segment register and is the same way
we implement the fast path in FastMalloc.

Reviewed by Darin Adler.

• wtf/FastMalloc.cpp:
• wtf/WTFThreadData.cpp:

(WTF::WTFThreadData::createAndRegisterForGetspecificDirect):

• wtf/WTFThreadData.h:

(WTF::wtfThreadData):

File:

• trunk/Source/WTF/wtf/FastMalloc.cpp (modified) (1 diff)

trunk/Source/WTF/wtf/FastMalloc.cpp

@@ -462 +462 @@
 #endif
 
-#ifdef __has_include
-#if __has_include(<System/pthread_machdep.h>)
-
+#if defined(__has_include) && __has_include(<System/pthread_machdep.h>)
 #include <System/pthread_machdep.h>
+#endif
 
 #if defined(__PTK_FRAMEWORK_JAVASCRIPTCORE_KEY0)
 #define WTF_USE_PTHREAD_GETSPECIFIC_DIRECT 1
-#endif
-
-#endif
 #endif