Changeset 166184 in webkit for trunk/Source/WTF/wtf/ThreadingPthreads.cpp

Timestamp:

Mar 24, 2014, 12:25:32 PM (11 years ago)

Author:

[email protected]

Message:

Add support for thread QoS
​https://bugs.webkit.org/show_bug.cgi?id=130688

Reviewed by Andreas Kling.

Source/JavaScriptCore:

• heap/BlockAllocator.cpp:

(JSC::BlockAllocator::blockFreeingThreadStartFunc):

• block freeing is a utility activity.

Source/WTF:

• wtf/FastMalloc.cpp:

(WTF::TCMalloc_PageHeap::runScavengerThread):

• block freeing is a utility activity.

• wtf/Threading.h:
  • declaration.
• wtf/ThreadingPthreads.cpp:

(WTF::createThreadInternal):

• default to interactive.

(WTF::setCurrentThreadQOSUtility):

• implementation.

• wtf/ThreadingWin.cpp:

(WTF::setCurrentThreadQOSUtility):

• no-op implementation.

File:

• trunk/Source/WTF/wtf/ThreadingPthreads.cpp (modified) (2 diffs)

trunk/Source/WTF/wtf/ThreadingPthreads.cpp

@@ -174 +174 @@
     auto invocation = std::make_unique<ThreadFunctionInvocation>(entryPoint, data);
     pthread_t threadHandle;
-    if (pthread_create(&threadHandle, 0, wtfThreadEntryPoint, invocation.get())) {
+    pthread_attr_t attr;
+    pthread_attr_init(&attr);
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
+    pthread_attr_set_qos_class_np(&attr, QOS_CLASS_USER_INTERACTIVE, 0);
+#endif
+    int error = pthread_create(&threadHandle, &attr, wtfThreadEntryPoint, invocation.get());
+    pthread_attr_destroy(&attr);
+
+    if (error) {
         LOG_ERROR("Failed to create pthread at entry point %p with data %p", wtfThreadEntryPoint, invocation.get());
         return 0;
@@ -226 +234 @@
     pthread_setschedparam(pthreadHandle, policy, &param);
 }
-    
+
+void setCurrentThreadQOSUtility()
+{
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
+    pthread_set_qos_class_np(pthread_self(), QOS_CLASS_UTILITY, 0);
+#endif
+}
+
 int waitForThreadCompletion(ThreadIdentifier threadID)
 {