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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/188301">188301</a></dd>
<dt>Author</dt> <dd>fpizlo@apple.com</dd>
<dt>Date</dt> <dd>2015-08-11 15:04:20 -0700 (Tue, 11 Aug 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Remove ByteSpinLock
https://bugs.webkit.org/show_bug.cgi?id=147900
Rubber stamped by Mark Lam.
* WTF.xcodeproj/project.pbxproj:
* wtf/ByteSpinLock.h: Removed.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWTFChangeLog">trunk/Source/WTF/ChangeLog</a></li>
<li><a href="#trunkSourceWTFWTFxcodeprojprojectpbxproj">trunk/Source/WTF/WTF.xcodeproj/project.pbxproj</a></li>
</ul>
<h3>Removed Paths</h3>
<ul>
<li><a href="#trunkSourceWTFwtfByteSpinLockh">trunk/Source/WTF/wtf/ByteSpinLock.h</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWTFChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/ChangeLog (188300 => 188301)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/ChangeLog 2015-08-11 22:02:18 UTC (rev 188300)
+++ trunk/Source/WTF/ChangeLog 2015-08-11 22:04:20 UTC (rev 188301)
</span><span class="lines">@@ -1,3 +1,13 @@
</span><ins>+2015-08-11 Filip Pizlo <fpizlo@apple.com>
+
+ Remove ByteSpinLock
+ https://bugs.webkit.org/show_bug.cgi?id=147900
+
+ Rubber stamped by Mark Lam.
+
+ * WTF.xcodeproj/project.pbxproj:
+ * wtf/ByteSpinLock.h: Removed.
+
</ins><span class="cx"> 2015-08-11 Brent Fulgham <bfulgham@apple.com>
</span><span class="cx">
</span><span class="cx"> [Win] Switch Windows build to Visual Studio 2015
</span></span></pre></div>
<a id="trunkSourceWTFWTFxcodeprojprojectpbxproj"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/WTF.xcodeproj/project.pbxproj (188300 => 188301)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/WTF.xcodeproj/project.pbxproj 2015-08-11 22:02:18 UTC (rev 188300)
+++ trunk/Source/WTF/WTF.xcodeproj/project.pbxproj 2015-08-11 22:04:20 UTC (rev 188301)
</span><span class="lines">@@ -333,7 +333,6 @@
</span><span class="cx"> 0FDDBFA61666DFA300C55FEF /* StringPrintStream.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StringPrintStream.h; sourceTree = "<group>"; };
</span><span class="cx"> 0FE164681B6FFC9600400E7C /* Lock.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = Lock.cpp; sourceTree = "<group>"; };
</span><span class="cx"> 0FE164691B6FFC9600400E7C /* Lock.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Lock.h; sourceTree = "<group>"; };
</span><del>- 0FEC3EE4171B834700FDAC8D /* ByteSpinLock.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ByteSpinLock.h; sourceTree = "<group>"; };
</del><span class="cx"> 0FED67B51B22D4D80066CE15 /* TinyPtrSet.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = TinyPtrSet.h; sourceTree = "<group>"; };
</span><span class="cx"> 14022F4018F5C3FC007FF0EB /* libbmalloc.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libbmalloc.a; sourceTree = BUILT_PRODUCTS_DIR; };
</span><span class="cx"> 143F611D1565F0F900DB514A /* RAMSize.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = RAMSize.cpp; sourceTree = "<group>"; };
</span><span class="lines">@@ -727,7 +726,6 @@
</span><span class="cx"> 0F824A621B7443A0002E345D /* ByteLock.cpp */,
</span><span class="cx"> 0F824A631B7443A0002E345D /* ByteLock.h */,
</span><span class="cx"> EB95E1EF161A72410089A2F5 /* ByteOrder.h */,
</span><del>- 0FEC3EE4171B834700FDAC8D /* ByteSpinLock.h */,
</del><span class="cx"> A8A4726A151A825A004123FF /* CheckedArithmetic.h */,
</span><span class="cx"> A8A4726B151A825A004123FF /* CheckedBoolean.h */,
</span><span class="cx"> 0FC4EDE51696149600F65041 /* CommaPrinter.h */,
</span></span></pre></div>
<a id="trunkSourceWTFwtfByteSpinLockh"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WTF/wtf/ByteSpinLock.h (188300 => 188301)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/wtf/ByteSpinLock.h 2015-08-11 22:02:18 UTC (rev 188300)
+++ trunk/Source/WTF/wtf/ByteSpinLock.h 2015-08-11 22:04:20 UTC (rev 188301)
</span><span class="lines">@@ -1,69 +0,0 @@
</span><del>-/*
- * Copyright (C) 2013, 2015 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef ByteSpinLock_h
-#define ByteSpinLock_h
-
-#include <thread>
-#include <wtf/Assertions.h>
-#include <wtf/Atomics.h>
-#include <wtf/Locker.h>
-#include <wtf/Noncopyable.h>
-
-namespace WTF {
-
-class ByteSpinLock {
- WTF_MAKE_NONCOPYABLE(ByteSpinLock);
-public:
- ByteSpinLock()
- {
- m_lock.store(false, std::memory_order_relaxed);
- }
-
- void lock()
- {
- while (!m_lock.compareExchangeWeak(false, true, std::memory_order_acquire))
- std::this_thread::yield();
- }
-
- void unlock()
- {
- m_lock.store(false, std::memory_order_release);
- }
-
- bool isHeld() const { return m_lock.load(std::memory_order_acquire); }
-
-private:
- Atomic<bool> m_lock;
-};
-
-typedef Locker<ByteSpinLock> ByteSpinLocker;
-
-} // namespace WTF
-
-using WTF::ByteSpinLock;
-using WTF::ByteSpinLocker;
-
-#endif // ByteSpinLock_h
</del></span></pre>
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