Update src/3rdparty/webkit from trunk.

Imported from 839d8709327f925aacb3b6362c06152594def97e
in branch qtwebkit-2.0 of repository
git://gitorious.org/+qtwebkit-developers/webkit/qtwebkit.git

Rubber-stamped-by: Simon Hausmann

1 files changed, 30 insertions, 17 deletions

diff --git a/src/3rdparty/webkit/JavaScriptCore/wtf/ThreadingPthreads.cpp b/src/3rdparty/webkit/JavaScriptCore/wtf/ThreadingPthreads.cpp
index 6cad5e3..2feb808 100644
--- a/src/3rdparty/webkit/JavaScriptCore/wtf/ThreadingPthreads.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/wtf/ThreadingPthreads.cpp
@@ -37,6 +37,8 @@
 #include "MainThread.h"
 #include "RandomNumberSeed.h"
 #include "StdLibExtras.h"
+#include "ThreadIdentifierDataPthreads.h"
+#include "ThreadSpecific.h"
 #include "UnusedParam.h"
 #include <errno.h>
 
@@ -45,7 +47,7 @@
 #include <sys/time.h>
 #endif
 
-#if PLATFORM(ANDROID)
+#if OS(ANDROID)
 #include "jni_utility.h"
 #endif
 
@@ -55,10 +57,12 @@ typedef HashMap<ThreadIdentifier, pthread_t> ThreadMap;
 
 static Mutex* atomicallyInitializedStaticMutex;
 
-#if !PLATFORM(DARWIN) || PLATFORM(CHROMIUM)
-static ThreadIdentifier mainThreadIdentifier; // The thread that was the first to call initializeThreading(), which must be the main thread.
+#if !OS(DARWIN) || PLATFORM(CHROMIUM) || USE(WEB_THREAD)
+static pthread_t mainThread; // The thread that was the first to call initializeThreading(), which must be the main thread.
 #endif
 
+void clearPthreadHandleForIdentifier(ThreadIdentifier);
+
 static Mutex& threadMapMutex()
 {
     DEFINE_STATIC_LOCAL(Mutex, mutex, ());
@@ -71,8 +75,8 @@ void initializeThreading()
         atomicallyInitializedStaticMutex = new Mutex;
         threadMapMutex();
         initializeRandomNumberGenerator();
-#if !PLATFORM(DARWIN) || PLATFORM(CHROMIUM)
-        mainThreadIdentifier = currentThread();
+#if !OS(DARWIN) || PLATFORM(CHROMIUM) || USE(WEB_THREAD)
+        mainThread = pthread_self();
 #endif
         initializeMainThread();
     }
@@ -108,7 +112,7 @@ static ThreadIdentifier identifierByPthreadHandle(const pthread_t& pthreadHandle
     return 0;
 }
 
-static ThreadIdentifier establishIdentifierForPthreadHandle(pthread_t& pthreadHandle)
+static ThreadIdentifier establishIdentifierForPthreadHandle(const pthread_t& pthreadHandle)
 {
     ASSERT(!identifierByPthreadHandle(pthreadHandle));
 
@@ -128,7 +132,7 @@ static pthread_t pthreadHandleForIdentifier(ThreadIdentifier id)
     return threadMap().get(id);
 }
 
-static void clearPthreadHandleForIdentifier(ThreadIdentifier id)
+void clearPthreadHandleForIdentifier(ThreadIdentifier id)
 {
     MutexLocker locker(threadMapMutex());
 
@@ -137,7 +141,7 @@ static void clearPthreadHandleForIdentifier(ThreadIdentifier id)
     threadMap().remove(id);
 }
 
-#if PLATFORM(ANDROID)
+#if OS(ANDROID)
 // On the Android platform, threads must be registered with the VM before they run.
 struct ThreadData {
     ThreadFunction entryPoint;
@@ -185,13 +189,17 @@ ThreadIdentifier createThreadInternal(ThreadFunction entryPoint, void* data, con
 }
 #endif
 
-void setThreadNameInternal(const char* threadName)
+void initializeCurrentThreadInternal(const char* threadName)
 {
 #if HAVE(PTHREAD_SETNAME_NP)
     pthread_setname_np(threadName);
 #else
     UNUSED_PARAM(threadName);
 #endif
+
+    ThreadIdentifier id = identifierByPthreadHandle(pthread_self());
+    ASSERT(id);
+    ThreadIdentifierData::initialize(id);
 }
 
 int waitForThreadCompletion(ThreadIdentifier threadID, void** result)
@@ -199,12 +207,13 @@ int waitForThreadCompletion(ThreadIdentifier threadID, void** result)
     ASSERT(threadID);
 
     pthread_t pthreadHandle = pthreadHandleForIdentifier(threadID);
+    if (!pthreadHandle)
+        return 0;
 
     int joinResult = pthread_join(pthreadHandle, result);
     if (joinResult == EDEADLK)
         LOG_ERROR("ThreadIdentifier %u was found to be deadlocked trying to quit", threadID);
 
-    clearPthreadHandleForIdentifier(threadID);
     return joinResult;
 }
 
@@ -213,26 +222,30 @@ void detachThread(ThreadIdentifier threadID)
     ASSERT(threadID);
 
     pthread_t pthreadHandle = pthreadHandleForIdentifier(threadID);
+    if (!pthreadHandle)
+        return;
 
     pthread_detach(pthreadHandle);
-
-    clearPthreadHandleForIdentifier(threadID);
 }
 
 ThreadIdentifier currentThread()
 {
-    pthread_t currentThread = pthread_self();
-    if (ThreadIdentifier id = identifierByPthreadHandle(currentThread))
+    ThreadIdentifier id = ThreadIdentifierData::identifier();
+    if (id)
         return id;
-    return establishIdentifierForPthreadHandle(currentThread);
+
+    // Not a WTF-created thread, ThreadIdentifier is not established yet.
+    id = establishIdentifierForPthreadHandle(pthread_self());
+    ThreadIdentifierData::initialize(id);
+    return id;
 }
 
 bool isMainThread()
 {
-#if PLATFORM(DARWIN) && !PLATFORM(CHROMIUM)
+#if OS(DARWIN) && !PLATFORM(CHROMIUM) && !USE(WEB_THREAD)
     return pthread_main_np();
 #else
-    return currentThread() == mainThreadIdentifier;
+    return pthread_equal(pthread_self(), mainThread);
 #endif
 }