Title: [183618] trunk/Source/WebCore
Revision
183618
Author
[email protected]
Date
2015-04-29 23:29:36 -0700 (Wed, 29 Apr 2015)

Log Message

Make GenericTaskQueue even more generic (and usable inside platform/)
https://bugs.webkit.org/show_bug.cgi?id=144414

Reviewed by Eric Carlson.

Templatize GenericTaskQueue so that it can be used from within platform/.

* CMakeLists.txt:
* WebCore.vcxproj/WebCore.vcxproj:
* WebCore.vcxproj/WebCore.vcxproj.filters:
* WebCore.xcodeproj/project.pbxproj:
* dom/GenericTaskQueue.cpp: Removed.
* html/HTMLMediaElement.h:
* platform/GenericTaskQueue.h: Renamed from Source/WebCore/dom/GenericTaskQueue.h.
(WebCore::TaskDispatcher::TaskDispatcher): Added default templatized class which just calls the parameter's postTask().
(WebCore::TaskDispatcher::postTask): Call context's postTask().
(WebCore::TaskDispatcher<Timer>::TaskDispatcher): Add a timer version which does not require a context.
(WebCore::TaskDispatcher<Timer>::postTask): Set the timer.
(WebCore::TaskDispatcher<Timer>::timerFired): Call the task.
(WebCore::GenericTaskQueue::GenericTaskQueue): Moved from .cpp.
(WebCore::GenericTaskQueue::enqueueTask): Ditto.
(WebCore::GenericTaskQueue::close): Ditto.
(WebCore::GenericTaskQueue::cancelAllTasks): Ditto.
(WebCore::GenericTaskQueue::hasPendingTasks): Ditto.

Modified Paths

Added Paths

Removed Paths

Diff

Modified: trunk/Source/WebCore/CMakeLists.txt (183617 => 183618)


--- trunk/Source/WebCore/CMakeLists.txt	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/CMakeLists.txt	2015-04-30 06:29:36 UTC (rev 183618)
@@ -1398,7 +1398,6 @@
     dom/ExceptionCodePlaceholder.cpp
     dom/FocusEvent.cpp
     dom/GenericEventQueue.cpp
-    dom/GenericTaskQueue.cpp
     dom/IdTargetObserver.cpp
     dom/IdTargetObserverRegistry.cpp
     dom/InlineStyleSheetOwner.cpp

Modified: trunk/Source/WebCore/ChangeLog (183617 => 183618)


--- trunk/Source/WebCore/ChangeLog	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/ChangeLog	2015-04-30 06:29:36 UTC (rev 183618)
@@ -1,3 +1,30 @@
+2015-04-29  Jer Noble  <[email protected]>
+
+        Make GenericTaskQueue even more generic (and usable inside platform/)
+        https://bugs.webkit.org/show_bug.cgi?id=144414
+
+        Reviewed by Eric Carlson.
+
+        Templatize GenericTaskQueue so that it can be used from within platform/.
+
+        * CMakeLists.txt:
+        * WebCore.vcxproj/WebCore.vcxproj:
+        * WebCore.vcxproj/WebCore.vcxproj.filters:
+        * WebCore.xcodeproj/project.pbxproj:
+        * dom/GenericTaskQueue.cpp: Removed.
+        * html/HTMLMediaElement.h:
+        * platform/GenericTaskQueue.h: Renamed from Source/WebCore/dom/GenericTaskQueue.h.
+        (WebCore::TaskDispatcher::TaskDispatcher): Added default templatized class which just calls the parameter's postTask().
+        (WebCore::TaskDispatcher::postTask): Call context's postTask().
+        (WebCore::TaskDispatcher<Timer>::TaskDispatcher): Add a timer version which does not require a context.
+        (WebCore::TaskDispatcher<Timer>::postTask): Set the timer.
+        (WebCore::TaskDispatcher<Timer>::timerFired): Call the task.
+        (WebCore::GenericTaskQueue::GenericTaskQueue): Moved from .cpp.
+        (WebCore::GenericTaskQueue::enqueueTask): Ditto.
+        (WebCore::GenericTaskQueue::close): Ditto.
+        (WebCore::GenericTaskQueue::cancelAllTasks): Ditto.
+        (WebCore::GenericTaskQueue::hasPendingTasks): Ditto.
+
 2015-04-29  Joseph Pecoraro  <[email protected]>
 
         Unreviewed build fix. WebCore has a weak symbol.

Modified: trunk/Source/WebCore/WebCore.vcxproj/WebCore.vcxproj (183617 => 183618)


--- trunk/Source/WebCore/WebCore.vcxproj/WebCore.vcxproj	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/WebCore.vcxproj/WebCore.vcxproj	2015-04-30 06:29:36 UTC (rev 183618)
@@ -13399,7 +13399,6 @@
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Production|x64'">true</ExcludedFromBuild>
     </ClCompile>
     <ClCompile Include="..\dom\GenericEventQueue.cpp" />
-    <ClCompile Include="..\dom\GenericTaskQueue.cpp" />
     <ClCompile Include="..\dom\IdTargetObserver.cpp">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
@@ -19789,6 +19788,7 @@
     <ClInclude Include="..\platform\FileStreamClient.h" />
     <ClInclude Include="..\platform\FileSystem.h" />
     <ClInclude Include="..\platform\FloatConversion.h" />
+    <ClInclude Include="..\platform\GenericTaskQueue.h" />
     <ClInclude Include="..\platform\audio\AudioSession.h" />
     <ClInclude Include="..\platform\audio\MediaSession.h" />
     <ClInclude Include="..\platform\audio\MediaSessionManager.h" />
@@ -20979,7 +20979,6 @@
     <ClInclude Include="..\dom\ExceptionCode.h" />
     <ClInclude Include="..\dom\ExceptionCodePlaceholder.h" />
     <ClInclude Include="..\dom\GenericEventQueue.h" />
-    <ClInclude Include="..\dom\GenericTaskQueue.h" />
     <ClInclude Include="..\dom\HashChangeEvent.h" />
     <ClInclude Include="..\dom\IconURL.h" />
     <ClInclude Include="..\dom\IdTargetObserver.h" />

Modified: trunk/Source/WebCore/WebCore.vcxproj/WebCore.vcxproj.filters (183617 => 183618)


--- trunk/Source/WebCore/WebCore.vcxproj/WebCore.vcxproj.filters	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/WebCore.vcxproj/WebCore.vcxproj.filters	2015-04-30 06:29:36 UTC (rev 183618)
@@ -3180,9 +3180,6 @@
     <ClCompile Include="..\dom\GenericEventQueue.cpp">
       <Filter>dom</Filter>
     </ClCompile>
-    <ClCompile Include="..\dom\GenericTaskQueue.cpp">
-      <Filter>dom</Filter>
-    </ClCompile>
     <ClCompile Include="..\dom\IdTargetObserver.cpp">
       <Filter>dom</Filter>
     </ClCompile>
@@ -8181,6 +8178,9 @@
     <ClInclude Include="..\platform\FloatConversion.h">
       <Filter>platform</Filter>
     </ClInclude>
+    <ClInclude Include="..\platform\GenericTaskQueue.h">
+      <Filter>platform</Filter>
+    </ClInclude>
     <ClInclude Include="..\platform\HostWindow.h">
       <Filter>platform</Filter>
     </ClInclude>
@@ -10290,9 +10290,6 @@
     <ClInclude Include="..\dom\GenericEventQueue.h">
       <Filter>dom</Filter>
     </ClInclude>
-    <ClInclude Include="..\dom\GenericTaskQueue.h">
-      <Filter>dom</Filter>
-    </ClInclude>
     <ClInclude Include="..\dom\HashChangeEvent.h">
       <Filter>dom</Filter>
     </ClInclude>

Modified: trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj (183617 => 183618)


--- trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/WebCore.xcodeproj/project.pbxproj	2015-04-30 06:29:36 UTC (rev 183618)
@@ -5740,7 +5740,6 @@
 		CD60C0C7193E87C7003C656B /* MediaTimeQTKit.h in Headers */ = {isa = PBXBuildFile; fileRef = CD60C0C5193E87C7003C656B /* MediaTimeQTKit.h */; };
 		CD61FE671794AADB004101EB /* MediaSourceRegistry.cpp in Sources */ = {isa = PBXBuildFile; fileRef = B1A942E115B5CE2200D525D1 /* MediaSourceRegistry.cpp */; };
 		CD61FE681794AADB004101EB /* MediaSourceRegistry.h in Headers */ = {isa = PBXBuildFile; fileRef = B1A942E215B5CE2200D525D1 /* MediaSourceRegistry.h */; };
-		CD62FB951AF018E70012ED7D /* GenericTaskQueue.cpp in Sources */ = {isa = PBXBuildFile; fileRef = CD62FB931AF018E70012ED7D /* GenericTaskQueue.cpp */; };
 		CD62FB961AF018E70012ED7D /* GenericTaskQueue.h in Headers */ = {isa = PBXBuildFile; fileRef = CD62FB941AF018E70012ED7D /* GenericTaskQueue.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		CD641EB31818F5ED00EE4C41 /* MediaSourcePrivate.h in Headers */ = {isa = PBXBuildFile; fileRef = CD641EB11818F5ED00EE4C41 /* MediaSourcePrivate.h */; };
 		CD641EB41818F5ED00EE4C41 /* SourceBufferPrivate.h in Headers */ = {isa = PBXBuildFile; fileRef = CD641EB21818F5ED00EE4C41 /* SourceBufferPrivate.h */; };
@@ -13295,7 +13294,6 @@
 		CD5E5B601A15F156000C609E /* PageConfiguration.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = PageConfiguration.cpp; sourceTree = "<group>"; };
 		CD60C0C4193E87C7003C656B /* MediaTimeQTKit.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = MediaTimeQTKit.mm; sourceTree = "<group>"; };
 		CD60C0C5193E87C7003C656B /* MediaTimeQTKit.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaTimeQTKit.h; sourceTree = "<group>"; };
-		CD62FB931AF018E70012ED7D /* GenericTaskQueue.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = GenericTaskQueue.cpp; sourceTree = "<group>"; };
 		CD62FB941AF018E70012ED7D /* GenericTaskQueue.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GenericTaskQueue.h; sourceTree = "<group>"; };
 		CD641EB11818F5ED00EE4C41 /* MediaSourcePrivate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MediaSourcePrivate.h; sourceTree = "<group>"; };
 		CD641EB21818F5ED00EE4C41 /* SourceBufferPrivate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SourceBufferPrivate.h; sourceTree = "<group>"; };
@@ -21731,6 +21729,7 @@
 				C57FEDE01212EE9C0097BE65 /* FileSystem.cpp */,
 				514B3F720C722047000530DF /* FileSystem.h */,
 				BC073BA90C399B1F000F5979 /* FloatConversion.h */,
+				CD62FB941AF018E70012ED7D /* GenericTaskQueue.h */,
 				5179CE25195C821D0019C198 /* GamepadProvider.cpp */,
 				5179CE23195C81420019C198 /* GamepadProvider.h */,
 				5179CE29195C91860019C198 /* GamepadProviderClient.h */,
@@ -23080,8 +23079,6 @@
 				A853123C11D0471B00D4D077 /* FragmentScriptingPermission.h */,
 				0720B09E14D3323500642955 /* GenericEventQueue.cpp */,
 				0720B09F14D3323500642955 /* GenericEventQueue.h */,
-				CD62FB931AF018E70012ED7D /* GenericTaskQueue.cpp */,
-				CD62FB941AF018E70012ED7D /* GenericTaskQueue.h */,
 				2442BBF81194C9D300D49469 /* HashChangeEvent.h */,
 				8482B7441198C32E00BFB005 /* HashChangeEvent.idl */,
 				45BAC2AF1360BBAB005DA258 /* IconURL.h */,
@@ -30461,7 +30458,6 @@
 				A833C7CC0A2CF07400D57664 /* XLinkNames.cpp in Sources */,
 				00B9318713BA8DB30035A948 /* XMLDocumentParser.cpp in Sources */,
 				00B9318913BA8DBC0035A948 /* XMLDocumentParserLibxml2.cpp in Sources */,
-				CD62FB951AF018E70012ED7D /* GenericTaskQueue.cpp in Sources */,
 				26A517FD1AB92238006335DF /* DFAMinimizer.cpp in Sources */,
 				00B9318B13BA8DC90035A948 /* XMLDocumentParserScope.cpp in Sources */,
 				59C28045138DC2410079B7E2 /* XMLErrors.cpp in Sources */,

Deleted: trunk/Source/WebCore/dom/GenericTaskQueue.cpp (183617 => 183618)


--- trunk/Source/WebCore/dom/GenericTaskQueue.cpp	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/dom/GenericTaskQueue.cpp	2015-04-30 06:29:36 UTC (rev 183618)
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 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. 
- */
-
-#include "config.h"
-#include "GenericTaskQueue.h"
-
-#include "ScriptExecutionContext.h"
-
-namespace WebCore {
-
-GenericTaskQueue::GenericTaskQueue(ScriptExecutionContext& context)
-    : m_context(context)
-    , m_weakPtrFactory(this)
-{
-}
-
-void GenericTaskQueue::enqueueTask(std::function<void()> task)
-{
-    ASSERT(!m_isClosed);
-    ++m_pendingTasks;
-    auto weakThis = m_weakPtrFactory.createWeakPtr();
-    m_context.postTask([weakThis, task] (ScriptExecutionContext&) {
-        if (!weakThis)
-            return;
-        --weakThis->m_pendingTasks;
-        task();
-    });
-}
-
-void GenericTaskQueue::close()
-{
-    cancelAllTasks();
-    m_isClosed = true;
-}
-
-void GenericTaskQueue::cancelAllTasks()
-{
-    m_weakPtrFactory.revokeAll();
-    m_pendingTasks = 0;
-}
-
-}

Deleted: trunk/Source/WebCore/dom/GenericTaskQueue.h (183617 => 183618)


--- trunk/Source/WebCore/dom/GenericTaskQueue.h	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/dom/GenericTaskQueue.h	2015-04-30 06:29:36 UTC (rev 183618)
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 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 GenericTaskQueue_h
-#define GenericTaskQueue_h
-
-#include <wtf/Deque.h>
-#include <wtf/WeakPtr.h>
-
-namespace WebCore {
-
-class ScriptExecutionContext;
-
-class GenericTaskQueue {
-public:
-    GenericTaskQueue(ScriptExecutionContext&);
-
-    void enqueueTask(std::function<void()>);
-    void close();
-
-    void cancelAllTasks();
-    bool hasPendingTasks() const { return m_pendingTasks; }
-
-private:
-    ScriptExecutionContext& m_context;
-    WeakPtrFactory<GenericTaskQueue> m_weakPtrFactory;
-    unsigned m_pendingTasks { 0 };
-    bool m_isClosed { false };
-};
-
-}
-
-#endif

Modified: trunk/Source/WebCore/html/HTMLMediaElement.h (183617 => 183618)


--- trunk/Source/WebCore/html/HTMLMediaElement.h	2015-04-30 05:53:01 UTC (rev 183617)
+++ trunk/Source/WebCore/html/HTMLMediaElement.h	2015-04-30 06:29:36 UTC (rev 183618)
@@ -741,7 +741,7 @@
     Timer m_progressEventTimer;
     Timer m_playbackProgressTimer;
     Timer m_scanTimer;
-    GenericTaskQueue m_seekTaskQueue;
+    GenericTaskQueue<ScriptExecutionContext> m_seekTaskQueue;
     RefPtr<TimeRanges> m_playedTimeRanges;
     GenericEventQueue m_asyncEventQueue;
 

Copied: trunk/Source/WebCore/platform/GenericTaskQueue.h (from rev 183617, trunk/Source/WebCore/dom/GenericTaskQueue.h) (0 => 183618)


--- trunk/Source/WebCore/platform/GenericTaskQueue.h	                        (rev 0)
+++ trunk/Source/WebCore/platform/GenericTaskQueue.h	2015-04-30 06:29:36 UTC (rev 183618)
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 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 GenericTaskQueue_h
+#define GenericTaskQueue_h
+
+#include "Timer.h"
+#include <wtf/Deque.h>
+#include <wtf/WeakPtr.h>
+
+namespace WebCore {
+
+template <typename T>
+class TaskDispatcher {
+public:
+    TaskDispatcher(T& context)
+        : m_context(context)
+    {
+    }
+
+    void postTask(std::function<void()> f)
+    {
+        m_context.postTask(f);
+    }
+
+private:
+    T& m_context;
+};
+
+template<>
+class TaskDispatcher<Timer> {
+public:
+    TaskDispatcher()
+        : m_timer(*this, &TaskDispatcher<Timer>::timerFired)
+    {
+    }
+
+    void postTask(std::function<void()> function)
+    {
+        m_queue.append(function);
+        m_timer.startOneShot(0);
+    }
+
+    void timerFired()
+    {
+        Deque<std::function<void()>> queue;
+        queue.swap(m_queue);
+        for (std::function<void()>& function : queue)
+            function();
+    }
+
+    Timer m_timer;
+    Deque<std::function<void()>> m_queue;
+};
+
+template <typename T>
+class GenericTaskQueue {
+public:
+    GenericTaskQueue()
+        : m_weakPtrFactory(this)
+        , m_dispatcher()
+    {
+    }
+
+    GenericTaskQueue(T& t)
+        : m_weakPtrFactory(this)
+        , m_dispatcher(t)
+    {
+    }
+
+    typedef std::function<void()> TaskFunction;
+
+    void enqueueTask(TaskFunction task)
+    {
+        ASSERT(!m_isClosed);
+        ++m_pendingTasks;
+        auto weakThis = m_weakPtrFactory.createWeakPtr();
+        m_dispatcher.postTask([weakThis, task] {
+            if (!weakThis)
+                return;
+            task();
+        });
+    }
+
+    void close()
+    {
+        cancelAllTasks();
+        m_isClosed = true;
+    }
+
+    void cancelAllTasks()
+    {
+        m_weakPtrFactory.revokeAll();
+        m_pendingTasks = 0;
+    }
+    bool hasPendingTasks() const { return m_pendingTasks; }
+
+private:
+    WeakPtrFactory<GenericTaskQueue> m_weakPtrFactory;
+    TaskDispatcher<T> m_dispatcher;
+    unsigned m_pendingTasks { 0 };
+    bool m_isClosed { false };
+};
+
+}
+
+#endif
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