Changeset 194769 in webkit for trunk/Source/JavaScriptCore/llvm/InitializeLLVM.cpp

Timestamp:

Jan 8, 2016, 10:20:43 AM (9 years ago)

Author:

[email protected]

Message:

[JSC] Use std::call_once instead of pthread_once when initializing LLVM.
​https://bugs.webkit.org/show_bug.cgi?id=152893

Reviewed by Mark Lam.

Use std::call_once since pthreads is not present on all platforms.

• llvm/InitializeLLVM.cpp:

(JSC::initializeLLVMImpl):
(JSC::initializeLLVM):

File:

• trunk/Source/JavaScriptCore/llvm/InitializeLLVM.cpp (modified) (2 diffs)

trunk/Source/JavaScriptCore/llvm/InitializeLLVM.cpp

@@ -31 +31 @@
 #include "LLVMAPI.h"
 #include "Options.h"
-#include <pthread.h>
+#include <mutex>
 #include <wtf/DataLog.h>
 
 namespace JSC {
-
-static pthread_once_t initializeLLVMOnceKey = PTHREAD_ONCE_INIT;
 
 static void initializeLLVMImpl()
@@ -68 +66 @@
 bool initializeLLVM()
 {
-    pthread_once(&initializeLLVMOnceKey, initializeLLVMImpl);
+    static std::once_flag initializeLLVMOnceKey;
+
+    std::call_once(initializeLLVMOnceKey, initializeLLVMImpl);
     return !!llvm;
 }