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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/210364">210364</a></dd>
<dt>Author</dt> <dd>antti@apple.com</dd>
<dt>Date</dt> <dd>2017-01-05 11:10:23 -0800 (Thu, 05 Jan 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>Use WTF::Function instead of std::function in network cache code
https://bugs.webkit.org/show_bug.cgi?id=166721

Reviewed by Andreas Kling.

Use better move-only type. Fix some unnecessary function copies.

* NetworkProcess/cache/NetworkCache.cpp:
(WebKit::NetworkCache::Cache::retrieve):
(WebKit::NetworkCache::Cache::clear):
* NetworkProcess/cache/NetworkCache.h:
* NetworkProcess/cache/NetworkCacheData.h:
* NetworkProcess/cache/NetworkCacheDataCocoa.mm:
(WebKit::NetworkCache::Data::apply):
* NetworkProcess/cache/NetworkCacheDataSoup.cpp:
(WebKit::NetworkCache::Data::apply):
* NetworkProcess/cache/NetworkCacheFileSystem.cpp:
(WebKit::NetworkCache::traverseDirectory):
* NetworkProcess/cache/NetworkCacheFileSystem.h:
* NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp:
(WebKit::NetworkCache::SpeculativeLoadManager::canRetrieve):
(WebKit::NetworkCache::SpeculativeLoadManager::retrieve):

    Split retrieve() to canRetrieve() and retrieve() functions.
    This avoids the need to copy the completion handler in the caller.

* NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.h:
* NetworkProcess/cache/NetworkCacheStorage.cpp:
(WebKit::NetworkCache::Storage::ReadOperation::ReadOperation):
(WebKit::NetworkCache::Storage::traverse):
(WebKit::NetworkCache::Storage::clear):
* NetworkProcess/cache/NetworkCacheStorage.h:</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcessNetworkResourceLoadercpp">trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCachecpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheh">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheDatah">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.h</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheDataCocoamm">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataCocoa.mm</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheDataSoupcpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataSoup.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheFileSystemcpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheFileSystemh">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.h</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadManagercpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadManagerh">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.h</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheStoragecpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheStorageh">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.h</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/ChangeLog        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -1,3 +1,38 @@
</span><ins>+2017-01-05  Antti Koivisto  &lt;antti@apple.com&gt;
+
+        Use WTF::Function instead of std::function in network cache code
+        https://bugs.webkit.org/show_bug.cgi?id=166721
+
+        Reviewed by Andreas Kling.
+
+        Use better move-only type. Fix some unnecessary function copies.
+
+        * NetworkProcess/cache/NetworkCache.cpp:
+        (WebKit::NetworkCache::Cache::retrieve):
+        (WebKit::NetworkCache::Cache::clear):
+        * NetworkProcess/cache/NetworkCache.h:
+        * NetworkProcess/cache/NetworkCacheData.h:
+        * NetworkProcess/cache/NetworkCacheDataCocoa.mm:
+        (WebKit::NetworkCache::Data::apply):
+        * NetworkProcess/cache/NetworkCacheDataSoup.cpp:
+        (WebKit::NetworkCache::Data::apply):
+        * NetworkProcess/cache/NetworkCacheFileSystem.cpp:
+        (WebKit::NetworkCache::traverseDirectory):
+        * NetworkProcess/cache/NetworkCacheFileSystem.h:
+        * NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp:
+        (WebKit::NetworkCache::SpeculativeLoadManager::canRetrieve):
+        (WebKit::NetworkCache::SpeculativeLoadManager::retrieve):
+
+            Split retrieve() to canRetrieve() and retrieve() functions.
+            This avoids the need to copy the completion handler in the caller.
+
+        * NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.h:
+        * NetworkProcess/cache/NetworkCacheStorage.cpp:
+        (WebKit::NetworkCache::Storage::ReadOperation::ReadOperation):
+        (WebKit::NetworkCache::Storage::traverse):
+        (WebKit::NetworkCache::Storage::clear):
+        * NetworkProcess/cache/NetworkCacheStorage.h:
+
</ins><span class="cx"> 2017-01-05  Enrica Casucci  &lt;enrica@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Unreviewed build fix after https://trac.webkit.org/changeset/210360
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcessNetworkResourceLoadercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -177,7 +177,7 @@
</span><span class="cx">     ASSERT(canUseCache(request));
</span><span class="cx"> 
</span><span class="cx">     RefPtr&lt;NetworkResourceLoader&gt; loader(this);
</span><del>-    NetworkCache::singleton().retrieve(request, { m_parameters.webPageID, m_parameters.webFrameID }, [loader, request](auto entry) {
</del><ins>+    NetworkCache::singleton().retrieve(request, { m_parameters.webPageID, m_parameters.webFrameID }, [loader = WTFMove(loader), request](auto entry) {
</ins><span class="cx">         if (loader-&gt;hasOneRef()) {
</span><span class="cx">             // The loader has been aborted and is only held alive by this lambda.
</span><span class="cx">             return;
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCachecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -309,7 +309,7 @@
</span><span class="cx">     return StoreDecision::Yes;
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void Cache::retrieve(const WebCore::ResourceRequest&amp; request, const GlobalFrameID&amp; frameID, std::function&lt;void (std::unique_ptr&lt;Entry&gt;)&gt;&amp;&amp; completionHandler)
</del><ins>+void Cache::retrieve(const WebCore::ResourceRequest&amp; request, const GlobalFrameID&amp; frameID, Function&lt;void (std::unique_ptr&lt;Entry&gt;)&gt;&amp;&amp; completionHandler)
</ins><span class="cx"> {
</span><span class="cx">     ASSERT(isEnabled());
</span><span class="cx">     ASSERT(request.url().protocolIsInHTTPFamily());
</span><span class="lines">@@ -337,13 +337,15 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(NETWORK_CACHE_SPECULATIVE_REVALIDATION)
</span><del>-    if (canUseSpeculativeRevalidation &amp;&amp; m_speculativeLoadManager-&gt;retrieve(frameID, storageKey, request, [request, completionHandler](std::unique_ptr&lt;Entry&gt; entry) {
-        if (entry &amp;&amp; WebCore::verifyVaryingRequestHeaders(entry-&gt;varyingRequestHeaders(), request))
-            completionHandler(WTFMove(entry));
-        else
-            completionHandler(nullptr);
-    }))
</del><ins>+    if (canUseSpeculativeRevalidation &amp;&amp; m_speculativeLoadManager-&gt;canRetrieve(storageKey, request, frameID)) {
+        m_speculativeLoadManager-&gt;retrieve(storageKey, [request, completionHandler = WTFMove(completionHandler)](std::unique_ptr&lt;Entry&gt; entry) {
+            if (entry &amp;&amp; WebCore::verifyVaryingRequestHeaders(entry-&gt;varyingRequestHeaders(), request))
+                completionHandler(WTFMove(entry));
+            else
+                completionHandler(nullptr);
+        });
</ins><span class="cx">         return;
</span><ins>+    }
</ins><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx">     auto startTime = std::chrono::system_clock::now();
</span><span class="lines">@@ -586,7 +588,7 @@
</span><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void Cache::clear(std::chrono::system_clock::time_point modifiedSince, std::function&lt;void ()&gt;&amp;&amp; completionHandler)
</del><ins>+void Cache::clear(std::chrono::system_clock::time_point modifiedSince, Function&lt;void ()&gt;&amp;&amp; completionHandler)
</ins><span class="cx"> {
</span><span class="cx">     LOG(NetworkCache, &quot;(NetworkProcess) clearing cache&quot;);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -105,7 +105,7 @@
</span><span class="cx">     bool isEnabled() const { return !!m_storage; }
</span><span class="cx"> 
</span><span class="cx">     // Completion handler may get called back synchronously on failure.
</span><del>-    void retrieve(const WebCore::ResourceRequest&amp;, const GlobalFrameID&amp;, std::function&lt;void (std::unique_ptr&lt;Entry&gt;)&gt;&amp;&amp;);
</del><ins>+    void retrieve(const WebCore::ResourceRequest&amp;, const GlobalFrameID&amp;, Function&lt;void (std::unique_ptr&lt;Entry&gt;)&gt;&amp;&amp;);
</ins><span class="cx">     std::unique_ptr&lt;Entry&gt; store(const WebCore::ResourceRequest&amp;, const WebCore::ResourceResponse&amp;, RefPtr&lt;WebCore::SharedBuffer&gt;&amp;&amp;, Function&lt;void (MappedBody&amp;)&gt;&amp;&amp;);
</span><span class="cx">     std::unique_ptr&lt;Entry&gt; storeRedirect(const WebCore::ResourceRequest&amp;, const WebCore::ResourceResponse&amp;, const WebCore::ResourceRequest&amp; redirectRequest);
</span><span class="cx">     std::unique_ptr&lt;Entry&gt; update(const WebCore::ResourceRequest&amp;, const GlobalFrameID&amp;, const Entry&amp;, const WebCore::ResourceResponse&amp; validatingResponse);
</span><span class="lines">@@ -119,7 +119,7 @@
</span><span class="cx">     void remove(const WebCore::ResourceRequest&amp;);
</span><span class="cx"> 
</span><span class="cx">     void clear();
</span><del>-    void clear(std::chrono::system_clock::time_point modifiedSince, std::function&lt;void ()&gt;&amp;&amp; completionHandler);
</del><ins>+    void clear(std::chrono::system_clock::time_point modifiedSince, Function&lt;void ()&gt;&amp;&amp; completionHandler);
</ins><span class="cx"> 
</span><span class="cx">     void dumpContentsToFile();
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheDatah"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.h (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.h        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheData.h        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -128,7 +128,7 @@
</span><span class="cx"> 
</span><span class="cx">     Data subrange(size_t offset, size_t) const;
</span><span class="cx"> 
</span><del>-    bool apply(const std::function&lt;bool (const uint8_t*, size_t)&gt;&amp;&amp;) const;
</del><ins>+    bool apply(const Function&lt;bool (const uint8_t*, size_t)&gt;&amp;) const;
</ins><span class="cx"> 
</span><span class="cx">     Data mapToFile(const char* path) const;
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheDataCocoamm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataCocoa.mm (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataCocoa.mm        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataCocoa.mm        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -71,7 +71,7 @@
</span><span class="cx">     return !m_dispatchData;
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-bool Data::apply(const std::function&lt;bool (const uint8_t*, size_t)&gt;&amp;&amp; applier) const
</del><ins>+bool Data::apply(const Function&lt;bool (const uint8_t*, size_t)&gt;&amp; applier) const
</ins><span class="cx"> {
</span><span class="cx">     if (!m_size)
</span><span class="cx">         return false;
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheDataSoupcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataSoup.cpp (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataSoup.cpp        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheDataSoup.cpp        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -70,7 +70,7 @@
</span><span class="cx">     return !m_buffer;
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-bool Data::apply(const std::function&lt;bool (const uint8_t*, size_t)&gt;&amp;&amp; applier) const
</del><ins>+bool Data::apply(const Function&lt;bool (const uint8_t*, size_t)&gt;&amp; applier) const
</ins><span class="cx"> {
</span><span class="cx">     if (!m_size)
</span><span class="cx">         return false;
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheFileSystemcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.cpp (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.cpp        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.cpp        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -32,6 +32,7 @@
</span><span class="cx"> #include &lt;dirent.h&gt;
</span><span class="cx"> #include &lt;sys/stat.h&gt;
</span><span class="cx"> #include &lt;sys/time.h&gt;
</span><ins>+#include &lt;wtf/Function.h&gt;
</ins><span class="cx"> #include &lt;wtf/text/CString.h&gt;
</span><span class="cx"> 
</span><span class="cx"> #if USE(SOUP)
</span><span class="lines">@@ -55,7 +56,7 @@
</span><span class="cx">     }
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void traverseDirectory(const String&amp; path, const std::function&lt;void (const String&amp;, DirectoryEntryType)&gt;&amp; function)
</del><ins>+void traverseDirectory(const String&amp; path, const Function&lt;void (const String&amp;, DirectoryEntryType)&gt;&amp; function)
</ins><span class="cx"> {
</span><span class="cx">     DIR* dir = opendir(WebCore::fileSystemRepresentation(path).data());
</span><span class="cx">     if (!dir)
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheFileSystemh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.h (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.h        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheFileSystem.h        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -35,7 +35,7 @@
</span><span class="cx"> namespace NetworkCache {
</span><span class="cx"> 
</span><span class="cx"> enum class DirectoryEntryType { Directory, File };
</span><del>-void traverseDirectory(const String&amp; path, const std::function&lt;void (const String&amp; fileName, DirectoryEntryType)&gt;&amp;);
</del><ins>+void traverseDirectory(const String&amp; path, const Function&lt;void (const String&amp; fileName, DirectoryEntryType)&gt;&amp;);
</ins><span class="cx"> 
</span><span class="cx"> void deleteDirectoryRecursively(const String&amp; path);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadManagercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -301,10 +301,10 @@
</span><span class="cx">     return requestsHeadersMatch(load.originalRequest(), actualRequest);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-bool SpeculativeLoadManager::retrieve(const GlobalFrameID&amp; frameID, const Key&amp; storageKey, const WebCore::ResourceRequest&amp; request, RetrieveCompletionHandler&amp;&amp; completionHandler)
</del><ins>+bool SpeculativeLoadManager::canRetrieve(const Key&amp; storageKey, const WebCore::ResourceRequest&amp; request, const GlobalFrameID&amp; frameID) const
</ins><span class="cx"> {
</span><span class="cx">     // Check already preloaded entries.
</span><del>-    if (auto preloadedEntry = m_preloadedEntries.take(storageKey)) {
</del><ins>+    if (auto preloadedEntry = m_preloadedEntries.get(storageKey)) {
</ins><span class="cx">         if (!canUsePreloadedEntry(*preloadedEntry, request)) {
</span><span class="cx">             LOG(NetworkCacheSpeculativePreloading, &quot;(NetworkProcess) Retrieval: Could not use preloaded entry to satisfy request for '%s' due to HTTP headers mismatch:&quot;, storageKey.identifier().utf8().data());
</span><span class="cx">             logSpeculativeLoadingDiagnosticMessage(frameID, preloadedEntry-&gt;wasRevalidated() ? DiagnosticLoggingKeys::wastedSpeculativeWarmupWithRevalidationKey() : DiagnosticLoggingKeys::wastedSpeculativeWarmupWithoutRevalidationKey());
</span><span class="lines">@@ -313,8 +313,6 @@
</span><span class="cx"> 
</span><span class="cx">         LOG(NetworkCacheSpeculativePreloading, &quot;(NetworkProcess) Retrieval: Using preloaded entry to satisfy request for '%s':&quot;, storageKey.identifier().utf8().data());
</span><span class="cx">         logSpeculativeLoadingDiagnosticMessage(frameID, preloadedEntry-&gt;wasRevalidated() ? DiagnosticLoggingKeys::successfulSpeculativeWarmupWithRevalidationKey() : DiagnosticLoggingKeys::successfulSpeculativeWarmupWithoutRevalidationKey());
</span><del>-
-        completionHandler(preloadedEntry-&gt;takeCacheEntry());
</del><span class="cx">         return true;
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="lines">@@ -321,7 +319,7 @@
</span><span class="cx">     // Check pending speculative revalidations.
</span><span class="cx">     auto* pendingPreload = m_pendingPreloads.get(storageKey);
</span><span class="cx">     if (!pendingPreload) {
</span><del>-        if (m_notPreloadedEntries.remove(storageKey))
</del><ins>+        if (m_notPreloadedEntries.get(storageKey))
</ins><span class="cx">             logSpeculativeLoadingDiagnosticMessage(frameID, DiagnosticLoggingKeys::entryWronglyNotWarmedUpKey());
</span><span class="cx">         else
</span><span class="cx">             logSpeculativeLoadingDiagnosticMessage(frameID, DiagnosticLoggingKeys::unknownEntryRequestKey());
</span><span class="lines">@@ -337,10 +335,21 @@
</span><span class="cx"> 
</span><span class="cx">     LOG(NetworkCacheSpeculativePreloading, &quot;(NetworkProcess) Retrieval: revalidation already in progress for '%s':&quot;, storageKey.identifier().utf8().data());
</span><span class="cx"> 
</span><ins>+    return true;
+}
+
+void SpeculativeLoadManager::retrieve(const Key&amp; storageKey, RetrieveCompletionHandler&amp;&amp; completionHandler)
+{
+    if (auto preloadedEntry = m_preloadedEntries.take(storageKey)) {
+        completionHandler(preloadedEntry-&gt;takeCacheEntry());
+        return;
+    }
+    ASSERT(m_pendingPreloads.contains(storageKey));
</ins><span class="cx">     // FIXME: This breaks incremental loading when the revalidation is not successful.
</span><del>-    auto addResult = m_pendingRetrieveRequests.ensure(storageKey, [] { return std::make_unique&lt;Vector&lt;RetrieveCompletionHandler&gt;&gt;(); });
</del><ins>+    auto addResult = m_pendingRetrieveRequests.ensure(storageKey, [] {
+        return std::make_unique&lt;Vector&lt;RetrieveCompletionHandler&gt;&gt;();
+    });
</ins><span class="cx">     addResult.iterator-&gt;value-&gt;append(WTFMove(completionHandler));
</span><del>-    return true;
</del><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void SpeculativeLoadManager::registerLoad(const GlobalFrameID&amp; frameID, const ResourceRequest&amp; request, const Key&amp; resourceKey)
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadManagerh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.h (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.h        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.h        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -51,9 +51,11 @@
</span><span class="cx"> 
</span><span class="cx">     void registerLoad(const GlobalFrameID&amp;, const WebCore::ResourceRequest&amp;, const Key&amp; resourceKey);
</span><span class="cx"> 
</span><del>-    typedef std::function&lt;void (std::unique_ptr&lt;Entry&gt;)&gt; RetrieveCompletionHandler;
-    bool retrieve(const GlobalFrameID&amp;, const Key&amp; storageKey, const WebCore::ResourceRequest&amp;, RetrieveCompletionHandler&amp;&amp;);
</del><ins>+    typedef Function&lt;void (std::unique_ptr&lt;Entry&gt;)&gt; RetrieveCompletionHandler;
</ins><span class="cx"> 
</span><ins>+    bool canRetrieve(const Key&amp; storageKey, const WebCore::ResourceRequest&amp;, const GlobalFrameID&amp;) const;
+    void retrieve(const Key&amp; storageKey, RetrieveCompletionHandler&amp;&amp;);
+
</ins><span class="cx"> private:
</span><span class="cx">     class PreloadedEntry;
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheStoragecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.cpp (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.cpp        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.cpp        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -53,9 +53,9 @@
</span><span class="cx"> struct Storage::ReadOperation {
</span><span class="cx">     WTF_MAKE_FAST_ALLOCATED;
</span><span class="cx"> public:
</span><del>-    ReadOperation(const Key&amp; key, const RetrieveCompletionHandler&amp; completionHandler)
</del><ins>+    ReadOperation(const Key&amp; key, RetrieveCompletionHandler&amp;&amp; completionHandler)
</ins><span class="cx">         : key(key)
</span><del>-        , completionHandler(completionHandler)
</del><ins>+        , completionHandler(WTFMove(completionHandler))
</ins><span class="cx">     { }
</span><span class="cx"> 
</span><span class="cx">     void cancel();
</span><span class="lines">@@ -804,7 +804,7 @@
</span><span class="cx"> {
</span><span class="cx">     ASSERT(RunLoop::isMain());
</span><span class="cx">     ASSERT(traverseHandler);
</span><del>-    // Avoid non-thread safe std::function copies.
</del><ins>+    // Avoid non-thread safe Function copies.
</ins><span class="cx"> 
</span><span class="cx">     auto traverseOperationPtr = std::make_unique&lt;TraverseOperation&gt;(type, flags, WTFMove(traverseHandler));
</span><span class="cx">     auto&amp; traverseOperation = *traverseOperationPtr;
</span><span class="lines">@@ -888,7 +888,7 @@
</span><span class="cx">     shrinkIfNeeded();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void Storage::clear(const String&amp; type, std::chrono::system_clock::time_point modifiedSinceTime, std::function&lt;void ()&gt;&amp;&amp; completionHandler)
</del><ins>+void Storage::clear(const String&amp; type, std::chrono::system_clock::time_point modifiedSinceTime, Function&lt;void ()&gt;&amp;&amp; completionHandler)
</ins><span class="cx"> {
</span><span class="cx">     ASSERT(RunLoop::isMain());
</span><span class="cx">     LOG(NetworkCacheStorage, &quot;(NetworkProcess) clearing cache&quot;);
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheStorageh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.h (210363 => 210364)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.h        2017-01-05 18:54:47 UTC (rev 210363)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheStorage.h        2017-01-05 19:10:23 UTC (rev 210364)
</span><span class="lines">@@ -59,7 +59,7 @@
</span><span class="cx">         Data body;
</span><span class="cx">     };
</span><span class="cx">     // This may call completion handler synchronously on failure.
</span><del>-    typedef std::function&lt;bool (std::unique_ptr&lt;Record&gt;)&gt; RetrieveCompletionHandler;
</del><ins>+    typedef Function&lt;bool (std::unique_ptr&lt;Record&gt;)&gt; RetrieveCompletionHandler;
</ins><span class="cx">     void retrieve(const Key&amp;, unsigned priority, RetrieveCompletionHandler&amp;&amp;);
</span><span class="cx"> 
</span><span class="cx">     typedef Function&lt;void (const Data&amp; mappedBody)&gt; MappedBodyHandler;
</span><span class="lines">@@ -66,7 +66,7 @@
</span><span class="cx">     void store(const Record&amp;, MappedBodyHandler&amp;&amp;);
</span><span class="cx"> 
</span><span class="cx">     void remove(const Key&amp;);
</span><del>-    void clear(const String&amp; type, std::chrono::system_clock::time_point modifiedSinceTime, std::function&lt;void ()&gt;&amp;&amp; completionHandler);
</del><ins>+    void clear(const String&amp; type, std::chrono::system_clock::time_point modifiedSinceTime, Function&lt;void ()&gt;&amp;&amp; completionHandler);
</ins><span class="cx"> 
</span><span class="cx">     struct RecordInfo {
</span><span class="cx">         size_t bodySize;
</span><span class="lines">@@ -179,7 +179,7 @@
</span><span class="cx"> };
</span><span class="cx"> 
</span><span class="cx"> // FIXME: Remove, used by NetworkCacheStatistics only.
</span><del>-using RecordFileTraverseFunction = std::function&lt;void (const String&amp; fileName, const String&amp; hashString, const String&amp; type, bool isBlob, const String&amp; recordDirectoryPath)&gt;;
</del><ins>+using RecordFileTraverseFunction = Function&lt;void (const String&amp; fileName, const String&amp; hashString, const String&amp; type, bool isBlob, const String&amp; recordDirectoryPath)&gt;;
</ins><span class="cx"> void traverseRecordsFiles(const String&amp; recordsPath, const String&amp; type, const RecordFileTraverseFunction&amp;);
</span><span class="cx"> 
</span><span class="cx"> }
</span></span></pre>
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