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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/161852">161852</a></dd>
<dt>Author</dt> <dd>andersca@apple.com</dd>
<dt>Date</dt> <dd>2014-01-12 18:36:50 -0800 (Sun, 12 Jan 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>Remove AtomicallyInitializedStatic
https://bugs.webkit.org/show_bug.cgi?id=126864
Reviewed by Darin Adler.
* wtf/Threading.h:
* wtf/ThreadingPthreads.cpp:
(WTF::initializeThreading):
* wtf/ThreadingWin.cpp:
(WTF::initializeThreading):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWTFChangeLog">trunk/Source/WTF/ChangeLog</a></li>
<li><a href="#trunkSourceWTFwtfThreadingh">trunk/Source/WTF/wtf/Threading.h</a></li>
<li><a href="#trunkSourceWTFwtfThreadingPthreadscpp">trunk/Source/WTF/wtf/ThreadingPthreads.cpp</a></li>
<li><a href="#trunkSourceWTFwtfThreadingWincpp">trunk/Source/WTF/wtf/ThreadingWin.cpp</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWTFChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/ChangeLog (161851 => 161852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/ChangeLog 2014-01-13 02:29:47 UTC (rev 161851)
+++ trunk/Source/WTF/ChangeLog 2014-01-13 02:36:50 UTC (rev 161852)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2014-01-12 Anders Carlsson <andersca@apple.com>
+
+ Remove AtomicallyInitializedStatic
+ https://bugs.webkit.org/show_bug.cgi?id=126864
+
+ Reviewed by Darin Adler.
+
+ * wtf/Threading.h:
+ * wtf/ThreadingPthreads.cpp:
+ (WTF::initializeThreading):
+ * wtf/ThreadingWin.cpp:
+ (WTF::initializeThreading):
+
</ins><span class="cx"> 2014-01-12 Darin Adler <darin@apple.com>
</span><span class="cx">
</span><span class="cx"> Add deprecatedCharacters as a synonym for characters and convert most call sites
</span></span></pre></div>
<a id="trunkSourceWTFwtfThreadingh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/wtf/Threading.h (161851 => 161852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/wtf/Threading.h 2014-01-13 02:29:47 UTC (rev 161851)
+++ trunk/Source/WTF/wtf/Threading.h 2014-01-13 02:36:50 UTC (rev 161852)
</span><span class="lines">@@ -69,12 +69,6 @@
</span><span class="cx"> #include <wtf/ThreadSafeRefCounted.h>
</span><span class="cx"> #include <wtf/ThreadingPrimitives.h>
</span><span class="cx">
</span><del>-// For portability, we do not use thread-safe statics natively supported by some compilers (e.g. gcc).
-#define AtomicallyInitializedStatic(T, name) \
- WTF::lockAtomicallyInitializedStaticMutex(); \
- static T name; \
- WTF::unlockAtomicallyInitializedStaticMutex();
-
</del><span class="cx"> namespace WTF {
</span><span class="cx">
</span><span class="cx"> typedef uint32_t ThreadIdentifier;
</span><span class="lines">@@ -100,9 +94,6 @@
</span><span class="cx"> WTF_EXPORT_PRIVATE int waitForThreadCompletion(ThreadIdentifier);
</span><span class="cx"> WTF_EXPORT_PRIVATE void detachThread(ThreadIdentifier);
</span><span class="cx">
</span><del>-WTF_EXPORT_PRIVATE void lockAtomicallyInitializedStaticMutex();
-WTF_EXPORT_PRIVATE void unlockAtomicallyInitializedStaticMutex();
-
</del><span class="cx"> } // namespace WTF
</span><span class="cx">
</span><span class="cx"> using WTF::ThreadIdentifier;
</span></span></pre></div>
<a id="trunkSourceWTFwtfThreadingPthreadscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/wtf/ThreadingPthreads.cpp (161851 => 161852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/wtf/ThreadingPthreads.cpp 2014-01-13 02:29:47 UTC (rev 161851)
+++ trunk/Source/WTF/wtf/ThreadingPthreads.cpp 2014-01-13 02:36:50 UTC (rev 161852)
</span><span class="lines">@@ -98,8 +98,6 @@
</span><span class="cx">
</span><span class="cx"> typedef HashMap<ThreadIdentifier, std::unique_ptr<PthreadState>> ThreadMap;
</span><span class="cx">
</span><del>-static Mutex* atomicallyInitializedStaticMutex;
-
</del><span class="cx"> void unsafeThreadWasDetached(ThreadIdentifier);
</span><span class="cx"> void threadDidExit(ThreadIdentifier);
</span><span class="cx"> void threadWasJoined(ThreadIdentifier);
</span><span class="lines">@@ -112,14 +110,16 @@
</span><span class="cx">
</span><span class="cx"> void initializeThreading()
</span><span class="cx"> {
</span><del>- if (atomicallyInitializedStaticMutex)
</del><ins>+ static bool isInitialized;
+
+ if (isInitialized)
</ins><span class="cx"> return;
</span><span class="cx">
</span><span class="cx"> WTF::double_conversion::initialize();
</span><span class="cx"> // StringImpl::empty() does not construct its static string in a threadsafe fashion,
</span><span class="cx"> // so ensure it has been initialized from here.
</span><span class="cx"> StringImpl::empty();
</span><del>- atomicallyInitializedStaticMutex = new Mutex;
</del><ins>+
</ins><span class="cx"> threadMapMutex();
</span><span class="cx"> initializeRandomNumberGenerator();
</span><span class="cx"> ThreadIdentifierData::initializeOnce();
</span><span class="lines">@@ -129,17 +129,6 @@
</span><span class="cx"> initializeDates();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void lockAtomicallyInitializedStaticMutex()
-{
- ASSERT(atomicallyInitializedStaticMutex);
- atomicallyInitializedStaticMutex->lock();
-}
-
-void unlockAtomicallyInitializedStaticMutex()
-{
- atomicallyInitializedStaticMutex->unlock();
-}
-
</del><span class="cx"> static ThreadMap& threadMap()
</span><span class="cx"> {
</span><span class="cx"> DEFINE_STATIC_LOCAL(ThreadMap, map, ());
</span></span></pre></div>
<a id="trunkSourceWTFwtfThreadingWincpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/wtf/ThreadingWin.cpp (161851 => 161852)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/wtf/ThreadingWin.cpp 2014-01-13 02:29:47 UTC (rev 161851)
+++ trunk/Source/WTF/wtf/ThreadingWin.cpp 2014-01-13 02:36:50 UTC (rev 161852)
</span><span class="lines">@@ -148,19 +148,6 @@
</span><span class="cx"> #endif
</span><span class="cx"> }
</span><span class="cx">
</span><del>-static Mutex* atomicallyInitializedStaticMutex;
-
-void lockAtomicallyInitializedStaticMutex()
-{
- ASSERT(atomicallyInitializedStaticMutex);
- atomicallyInitializedStaticMutex->lock();
-}
-
-void unlockAtomicallyInitializedStaticMutex()
-{
- atomicallyInitializedStaticMutex->unlock();
-}
-
</del><span class="cx"> static Mutex& threadMapMutex()
</span><span class="cx"> {
</span><span class="cx"> static Mutex mutex;
</span><span class="lines">@@ -169,19 +156,22 @@
</span><span class="cx">
</span><span class="cx"> void initializeThreading()
</span><span class="cx"> {
</span><del>- if (atomicallyInitializedStaticMutex)
</del><ins>+ static bool isInitialized;
+
+ if (isInitialized)
</ins><span class="cx"> return;
</span><span class="cx">
</span><span class="cx"> WTF::double_conversion::initialize();
</span><span class="cx"> // StringImpl::empty() does not construct its static string in a threadsafe fashion,
</span><span class="cx"> // so ensure it has been initialized from here.
</span><span class="cx"> StringImpl::empty();
</span><del>- atomicallyInitializedStaticMutex = new Mutex;
</del><span class="cx"> threadMapMutex();
</span><span class="cx"> initializeRandomNumberGenerator();
</span><span class="cx"> wtfThreadData();
</span><span class="cx"> s_dtoaP5Mutex = new Mutex;
</span><span class="cx"> initializeDates();
</span><ins>+
+ isInitialized = true;
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> static HashMap<DWORD, HANDLE>& threadMap()
</span></span></pre>
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