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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/244257">244257</a></dd>
<dt>Author</dt> <dd>bshafiei@apple.com</dd>
<dt>Date</dt> <dd>2019-04-15 00:43:43 -0700 (Mon, 15 Apr 2019)</dd>
</dl>

<h3>Log Message</h3>
<pre>Revert <a href="http://trac.webkit.org/projects/webkit/changeset/244131">r244131</a>. rdar://problem/49894388</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari607branchSourceWebCoreModuleswebdatabaseDatabaseTrackercpp">branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp</a></li>
<li><a href="#branchessafari607branchSourceWebCoreModuleswebdatabaseDatabaseTrackerh">branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.h</a></li>
<li><a href="#branchessafari607branchSourceWebCoreplatformsqlSQLiteDatabasecpp">branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.cpp</a></li>
<li><a href="#branchessafari607branchSourceWebCoreplatformsqlSQLiteDatabaseh">branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.h</a></li>
<li><a href="#branchessafari607branchSourceWebCoreplatformsqlSQLiteDatabaseTrackercpp">branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabaseTracker.cpp</a></li>
<li><a href="#branchessafari607branchSourceWebKitSharedWebSQLiteDatabaseTrackercpp">branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.cpp</a></li>
<li><a href="#branchessafari607branchSourceWebKitSharedWebSQLiteDatabaseTrackerh">branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.h</a></li>
<li><a href="#branchessafari607branchSourceWebKitWebProcessWebProcesscpp">branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.cpp</a></li>
<li><a href="#branchessafari607branchSourceWebKitWebProcessWebProcessh">branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.h</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari607branchSourceWebCoreModuleswebdatabaseDatabaseTrackercpp"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp        2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.cpp   2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -80,11 +80,6 @@
</span><span class="cx">     staticTracker = new DatabaseTracker(databasePath);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-bool DatabaseTracker::isInitialized()
-{
-    return !!staticTracker;
-}
-    
</del><span class="cx"> DatabaseTracker& DatabaseTracker::singleton()
</span><span class="cx"> {
</span><span class="cx">     if (!staticTracker)
</span></span></pre></div>
<a id="branchessafari607branchSourceWebCoreModuleswebdatabaseDatabaseTrackerh"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.h (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.h  2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebCore/Modules/webdatabase/DatabaseTracker.h     2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -59,7 +59,6 @@
</span><span class="cx">     static void initializeTracker(const String& databasePath);
</span><span class="cx"> 
</span><span class="cx">     WEBCORE_EXPORT static DatabaseTracker& singleton();
</span><del>-    WEBCORE_EXPORT static bool isInitialized();
</del><span class="cx">     // This singleton will potentially be used from multiple worker threads and the page's context thread simultaneously.  To keep this safe, it's
</span><span class="cx">     // currently using 4 locks.  In order to avoid deadlock when taking multiple locks, you must take them in the correct order:
</span><span class="cx">     // m_databaseGuard before quotaManager if both locks are needed.
</span></span></pre></div>
<a id="branchessafari607branchSourceWebCoreplatformsqlSQLiteDatabasecpp"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.cpp (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.cpp        2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.cpp   2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -71,15 +71,6 @@
</span><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-static bool isDatabaseOpeningForbidden = false;
-static Lock isDatabaseOpeningForbiddenMutex;
-
-void SQLiteDatabase::setIsDatabaseOpeningForbidden(bool isForbidden)
-{
-    std::lock_guard<Lock> lock(isDatabaseOpeningForbiddenMutex);
-    isDatabaseOpeningForbidden = isForbidden;
-}
-
</del><span class="cx"> SQLiteDatabase::SQLiteDatabase() = default;
</span><span class="cx"> 
</span><span class="cx"> SQLiteDatabase::~SQLiteDatabase()
</span><span class="lines">@@ -93,17 +84,14 @@
</span><span class="cx"> 
</span><span class="cx">     close();
</span><span class="cx"> 
</span><del>-    {
-        std::lock_guard<Lock> lock(isDatabaseOpeningForbiddenMutex);
-        m_openError = SQLiteFileSystem::openDatabase(filename, &m_db, forWebSQLDatabase);
-        if (m_openError != SQLITE_OK) {
-            m_openErrorMessage = m_db ? sqlite3_errmsg(m_db) : "sqlite_open returned null";
-            LOG_ERROR("SQLite database failed to load from %s\nCause - %s", filename.ascii().data(),
-                m_openErrorMessage.data());
-            sqlite3_close(m_db);
-            m_db = 0;
-            return false;
-        }
</del><ins>+    m_openError = SQLiteFileSystem::openDatabase(filename, &m_db, forWebSQLDatabase);
+    if (m_openError != SQLITE_OK) {
+        m_openErrorMessage = m_db ? sqlite3_errmsg(m_db) : "sqlite_open returned null";
+        LOG_ERROR("SQLite database failed to load from %s\nCause - %s", filename.ascii().data(),
+            m_openErrorMessage.data());
+        sqlite3_close(m_db);
+        m_db = 0;
+        return false;
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     overrideUnauthorizedFunctions();
</span></span></pre></div>
<a id="branchessafari607branchSourceWebCoreplatformsqlSQLiteDatabaseh"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.h (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.h  2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabase.h     2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -136,8 +136,6 @@
</span><span class="cx">     WEBCORE_EXPORT void disableThreadingChecks() {}
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><del>-    WEBCORE_EXPORT static void setIsDatabaseOpeningForbidden(bool);
-
</del><span class="cx"> private:
</span><span class="cx">     static int authorizerFunction(void*, int, const char*, const char*, const char*, const char*);
</span><span class="cx"> 
</span></span></pre></div>
<a id="branchessafari607branchSourceWebCoreplatformsqlSQLiteDatabaseTrackercpp"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabaseTracker.cpp (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabaseTracker.cpp 2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebCore/platform/sql/SQLiteDatabaseTracker.cpp    2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -40,16 +40,18 @@
</span><span class="cx"> 
</span><span class="cx"> void setClient(SQLiteDatabaseTrackerClient* client)
</span><span class="cx"> {
</span><del>-    std::lock_guard<Lock> lock(transactionInProgressMutex);
</del><ins>+    ASSERT(client);
+    ASSERT(!s_staticSQLiteDatabaseTrackerClient || s_staticSQLiteDatabaseTrackerClient == client);
</ins><span class="cx">     s_staticSQLiteDatabaseTrackerClient = client;
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void incrementTransactionInProgressCount()
</span><span class="cx"> {
</span><del>-    std::lock_guard<Lock> lock(transactionInProgressMutex);
</del><span class="cx">     if (!s_staticSQLiteDatabaseTrackerClient)
</span><span class="cx">         return;
</span><span class="cx"> 
</span><ins>+    std::lock_guard<Lock> lock(transactionInProgressMutex);
+
</ins><span class="cx">     s_transactionInProgressCounter++;
</span><span class="cx">     if (s_transactionInProgressCounter == 1)
</span><span class="cx">         s_staticSQLiteDatabaseTrackerClient->willBeginFirstTransaction();
</span><span class="lines">@@ -57,10 +59,11 @@
</span><span class="cx"> 
</span><span class="cx"> void decrementTransactionInProgressCount()
</span><span class="cx"> {
</span><del>-    std::lock_guard<Lock> lock(transactionInProgressMutex);
</del><span class="cx">     if (!s_staticSQLiteDatabaseTrackerClient)
</span><span class="cx">         return;
</span><span class="cx"> 
</span><ins>+    std::lock_guard<Lock> lock(transactionInProgressMutex);
+
</ins><span class="cx">     ASSERT(s_transactionInProgressCounter);
</span><span class="cx">     s_transactionInProgressCounter--;
</span><span class="cx"> 
</span><span class="lines">@@ -71,7 +74,6 @@
</span><span class="cx"> #if !ASSERT_DISABLED
</span><span class="cx"> bool hasTransactionInProgress()
</span><span class="cx"> {
</span><del>-    std::lock_guard<Lock> lock(transactionInProgressMutex);
</del><span class="cx">     return !s_staticSQLiteDatabaseTrackerClient || s_transactionInProgressCounter > 0;
</span><span class="cx"> }
</span><span class="cx"> #endif
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitSharedWebSQLiteDatabaseTrackercpp"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.cpp (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.cpp     2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.cpp        2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -52,15 +52,6 @@
</span><span class="cx">     SQLiteDatabaseTracker::setClient(this);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-WebSQLiteDatabaseTracker::~WebSQLiteDatabaseTracker()
-{
-    ASSERT(RunLoop::isMain());
-    SQLiteDatabaseTracker::setClient(nullptr);
-
-    if (m_hysteresis.state() == PAL::HysteresisState::Started)
-        hysteresisUpdated(PAL::HysteresisState::Stopped);
-}
-
</del><span class="cx"> void WebSQLiteDatabaseTracker::willBeginFirstTransaction()
</span><span class="cx"> {
</span><span class="cx">     callOnMainThread([this] {
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitSharedWebSQLiteDatabaseTrackerh"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.h (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.h       2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebKit/Shared/WebSQLiteDatabaseTracker.h  2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -42,8 +42,6 @@
</span><span class="cx">     explicit WebSQLiteDatabaseTracker(NetworkProcess&);
</span><span class="cx">     explicit WebSQLiteDatabaseTracker(WebProcess&);
</span><span class="cx"> 
</span><del>-    ~WebSQLiteDatabaseTracker();
-
</del><span class="cx">     // WebCore::SQLiteDatabaseTrackerClient
</span><span class="cx">     void willBeginFirstTransaction() override;
</span><span class="cx">     void didFinishLastTransaction() override;
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitWebProcessWebProcesscpp"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.cpp (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.cpp       2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.cpp  2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -136,10 +136,6 @@
</span><span class="cx"> #include "UserMediaCaptureManager.h"
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><del>-#if PLATFORM(IOS_FAMILY)
-#include "WebSQLiteDatabaseTracker.h"
-#endif
-
</del><span class="cx"> #if ENABLE(SEC_ITEM_SHIM)
</span><span class="cx"> #include "SecItemShim.h"
</span><span class="cx"> #endif
</span><span class="lines">@@ -187,7 +183,7 @@
</span><span class="cx"> #endif
</span><span class="cx">     , m_nonVisibleProcessCleanupTimer(*this, &WebProcess::nonVisibleProcessCleanupTimerFired)
</span><span class="cx"> #if PLATFORM(IOS_FAMILY)
</span><del>-    , m_webSQLiteDatabaseTracker(std::make_unique<WebSQLiteDatabaseTracker>(*this))
</del><ins>+    , m_webSQLiteDatabaseTracker(*this)
</ins><span class="cx"> #endif
</span><span class="cx"> {
</span><span class="cx">     // Initialize our platform strategies.
</span><span class="lines">@@ -1451,10 +1447,6 @@
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS_FAMILY)
</span><del>-    m_webSQLiteDatabaseTracker = nullptr;
-    SQLiteDatabase::setIsDatabaseOpeningForbidden(true);
-    if (DatabaseTracker::isInitialized())
-        DatabaseTracker::singleton().closeAllDatabases(CurrentQueryBehavior::Interrupt);
</del><span class="cx">     accessibilityProcessSuspendedNotification(true);
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="lines">@@ -1482,6 +1474,7 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     RELEASE_LOG(ProcessSuspension, "%p - WebProcess::processWillSuspendImminently()", this);
</span><ins>+    DatabaseTracker::singleton().closeAllDatabases(CurrentQueryBehavior::Interrupt);
</ins><span class="cx">     actualPrepareToSuspend(ShouldAcknowledgeWhenReadyToSuspend::No);
</span><span class="cx">     handled = true;
</span><span class="cx"> }
</span><span class="lines">@@ -1498,8 +1491,6 @@
</span><span class="cx">     unfreezeAllLayerTrees();
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS_FAMILY)
</span><del>-    m_webSQLiteDatabaseTracker = std::make_unique<WebSQLiteDatabaseTracker>(*this);
-    SQLiteDatabase::setIsDatabaseOpeningForbidden(false);
</del><span class="cx">     accessibilityProcessSuspendedNotification(false);
</span><span class="cx"> #endif
</span><span class="cx">     
</span><span class="lines">@@ -1567,8 +1558,6 @@
</span><span class="cx">     unfreezeAllLayerTrees();
</span><span class="cx">     
</span><span class="cx"> #if PLATFORM(IOS_FAMILY)
</span><del>-    m_webSQLiteDatabaseTracker = std::make_unique<WebSQLiteDatabaseTracker>(*this);
-    SQLiteDatabase::setIsDatabaseOpeningForbidden(false);
</del><span class="cx">     accessibilityProcessSuspendedNotification(false);
</span><span class="cx"> #endif
</span><span class="cx"> }
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitWebProcessWebProcessh"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.h (244256 => 244257)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.h 2019-04-15 07:43:37 UTC (rev 244256)
+++ branches/safari-607-branch/Source/WebKit/WebProcess/WebProcess.h    2019-04-15 07:43:43 UTC (rev 244257)
</span><span class="lines">@@ -52,6 +52,10 @@
</span><span class="cx"> #include <wtf/MachSendRight.h>
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><ins>+#if PLATFORM(IOS_FAMILY)
+#include "WebSQLiteDatabaseTracker.h"
+#endif
+
</ins><span class="cx"> namespace API {
</span><span class="cx"> class Object;
</span><span class="cx"> }
</span><span class="lines">@@ -102,7 +106,6 @@
</span><span class="cx"> struct WebPageCreationParameters;
</span><span class="cx"> struct WebPageGroupData;
</span><span class="cx"> struct WebPreferencesStore;
</span><del>-class WebSQLiteDatabaseTracker
</del><span class="cx"> struct WebProcessCreationParameters;
</span><span class="cx"> struct WebsiteData;
</span><span class="cx"> struct WebsiteDataStoreParameters;
</span><span class="lines">@@ -464,7 +467,7 @@
</span><span class="cx">     RefPtr<WebCore::ApplicationCacheStorage> m_applicationCacheStorage;
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS_FAMILY)
</span><del>-    std::unique_ptr<WebSQLiteDatabaseTracker> m_webSQLiteDatabaseTracker;
</del><ins>+    WebSQLiteDatabaseTracker m_webSQLiteDatabaseTracker;
</ins><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx">     enum PageMarkingLayersAsVolatileCounterType { };
</span></span></pre>
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