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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/194864">194864</a></dd>
<dt>Author</dt> <dd>beidson@apple.com</dd>
<dt>Date</dt> <dd>2016-01-11 13:37:35 -0800 (Mon, 11 Jan 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>LayoutTests/imported/w3c:
Modern IDB: IDBBindingUtilities chokes on unicode strings for get/set.
https://bugs.webkit.org/show_bug.cgi?id=152921

Reviewed by Alex Christensen.

* indexeddb/keygenerator-overflow-expected.txt:

Source/WebCore:
Modern IDB: storage/indexeddb/key-generator.html fails.
https://bugs.webkit.org/show_bug.cgi?id=152981

Reviewed by Alex Christensen.

No new tests (One failing test now passes, and one test's results get a progression).

* Modules/indexeddb/server/IDBBackingStore.h:

* Modules/indexeddb/server/MemoryIDBBackingStore.cpp:
(WebCore::IDBServer::MemoryIDBBackingStore::generateKeyNumber): Throw an error if the current
  value is already over 2^53.
(WebCore::IDBServer::MemoryIDBBackingStore::revertGeneratedKeyNumber):
(WebCore::IDBServer::MemoryIDBBackingStore::maybeUpdateKeyGeneratorNumber): Handle double -&gt; uint64_t
  conversions properly when calculating the next key.
* Modules/indexeddb/server/MemoryIDBBackingStore.h:

* Modules/indexeddb/server/UniqueIDBDatabase.cpp:
(WebCore::IDBServer::ScopeGuard::ScopeGuard): Add this utility class to call a function
  any time it goes out of scope.
(WebCore::IDBServer::ScopeGuard::~ScopeGuard):
(WebCore::IDBServer::ScopeGuard::enable):
(WebCore::IDBServer::ScopeGuard::disable):
(WebCore::IDBServer::UniqueIDBDatabase::performPutOrAdd): Revert the key generator value if
  the put/add operation ends in error.

LayoutTests:
Modern IDB: storage/indexeddb/key-generator.html fails.
https://bugs.webkit.org/show_bug.cgi?id=152981

Reviewed by Alex Christensen.

* platform/mac-wk1/TestExpectations:
* platform/wk2/imported/w3c/indexeddb/keygenerator-overflow-expected.txt: Copied from LayoutTests/imported/w3c/indexeddb/keygenerator-overflow-expected.txt.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsimportedw3cChangeLog">trunk/LayoutTests/imported/w3c/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsimportedw3cindexeddbkeygeneratoroverflowexpectedtxt">trunk/LayoutTests/imported/w3c/indexeddb/keygenerator-overflow-expected.txt</a></li>
<li><a href="#trunkLayoutTestsplatformmacwk1TestExpectations">trunk/LayoutTests/platform/mac-wk1/TestExpectations</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreModulesindexeddbserverIDBBackingStoreh">trunk/Source/WebCore/Modules/indexeddb/server/IDBBackingStore.h</a></li>
<li><a href="#trunkSourceWebCoreModulesindexeddbserverMemoryIDBBackingStorecpp">trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.cpp</a></li>
<li><a href="#trunkSourceWebCoreModulesindexeddbserverMemoryIDBBackingStoreh">trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.h</a></li>
<li><a href="#trunkSourceWebCoreModulesindexeddbserverUniqueIDBDatabasecpp">trunk/Source/WebCore/Modules/indexeddb/server/UniqueIDBDatabase.cpp</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsplatformwk2importedw3cindexeddbkeygeneratoroverflowexpectedtxt">trunk/LayoutTests/platform/wk2/imported/w3c/indexeddb/keygenerator-overflow-expected.txt</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/LayoutTests/ChangeLog        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -1,5 +1,15 @@
</span><span class="cx"> 2016-01-11  Brady Eidson  &lt;beidson@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Modern IDB: storage/indexeddb/key-generator.html fails.
+        https://bugs.webkit.org/show_bug.cgi?id=152981
+
+        Reviewed by Alex Christensen.
+
+        * platform/mac-wk1/TestExpectations:
+        * platform/wk2/imported/w3c/indexeddb/keygenerator-overflow-expected.txt: Copied from LayoutTests/imported/w3c/indexeddb/keygenerator-overflow-expected.txt.
+
+2016-01-11  Brady Eidson  &lt;beidson@apple.com&gt;
+
</ins><span class="cx">         Modern IDB: storage/indexeddb/lazy-index-population.html fails.
</span><span class="cx">         https://bugs.webkit.org/show_bug.cgi?id=152976
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkLayoutTestsimportedw3cChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/imported/w3c/ChangeLog (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/imported/w3c/ChangeLog        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/LayoutTests/imported/w3c/ChangeLog        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -1,3 +1,12 @@
</span><ins>+2016-01-11  Brady Eidson  &lt;beidson@apple.com&gt;
+
+        Modern IDB: IDBBindingUtilities chokes on unicode strings for get/set.
+        https://bugs.webkit.org/show_bug.cgi?id=152921
+
+        Reviewed by Alex Christensen.
+
+        * indexeddb/keygenerator-overflow-expected.txt:
+
</ins><span class="cx"> 2016-01-08  Brady Eidson  &lt;beidson@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Modern IDB: IDBBindingUtilities chokes on unicode strings for get/set.
</span></span></pre></div>
<a id="trunkLayoutTestsimportedw3cindexeddbkeygeneratoroverflowexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/imported/w3c/indexeddb/keygenerator-overflow-expected.txt (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/imported/w3c/indexeddb/keygenerator-overflow-expected.txt        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/LayoutTests/imported/w3c/indexeddb/keygenerator-overflow-expected.txt        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -1,3 +1,3 @@
</span><span class="cx"> 
</span><del>-FAIL Keygenerator overflow assert_unreached: When &quot;current number&quot; overflows, error event is expected Reached unreachable code
</del><ins>+PASS Keygenerator overflow 
</ins><span class="cx"> 
</span></span></pre></div>
<a id="trunkLayoutTestsplatformmacwk1TestExpectations"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/mac-wk1/TestExpectations (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/mac-wk1/TestExpectations        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/LayoutTests/platform/mac-wk1/TestExpectations        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -76,9 +76,6 @@
</span><span class="cx"> imported/w3c/indexeddb/idbindex_openCursor2.htm [ Failure ]
</span><span class="cx"> imported/w3c/indexeddb/idbindex_openKeyCursor3.htm [ Failure ]
</span><span class="cx"> 
</span><del>-# Modern IDB doesn't properly handle 2^53 as a key generator value
-storage/indexeddb/key-generator.html [ Skip ]
-
</del><span class="cx"> # Crashes with GuardMalloc or ASan
</span><span class="cx"> storage/indexeddb/index-multientry.html [ Skip ]
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkLayoutTestsplatformwk2importedw3cindexeddbkeygeneratoroverflowexpectedtxtfromrev194863trunkLayoutTestsimportedw3cindexeddbkeygeneratoroverflowexpectedtxt"></a>
<div class="copfile"><h4>Copied: trunk/LayoutTests/platform/wk2/imported/w3c/indexeddb/keygenerator-overflow-expected.txt (from rev 194863, trunk/LayoutTests/imported/w3c/indexeddb/keygenerator-overflow-expected.txt) (0 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/wk2/imported/w3c/indexeddb/keygenerator-overflow-expected.txt                                (rev 0)
+++ trunk/LayoutTests/platform/wk2/imported/w3c/indexeddb/keygenerator-overflow-expected.txt        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -0,0 +1,3 @@
</span><ins>+
+FAIL Keygenerator overflow assert_unreached: When &quot;current number&quot; overflows, error event is expected Reached unreachable code
+
</ins></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/Source/WebCore/ChangeLog        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -1,5 +1,33 @@
</span><span class="cx"> 2016-01-11  Brady Eidson  &lt;beidson@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Modern IDB: storage/indexeddb/key-generator.html fails.
+        https://bugs.webkit.org/show_bug.cgi?id=152981
+
+        Reviewed by Alex Christensen.
+
+        No new tests (One failing test now passes, and one test's results get a progression).
+
+        * Modules/indexeddb/server/IDBBackingStore.h:
+        
+        * Modules/indexeddb/server/MemoryIDBBackingStore.cpp:
+        (WebCore::IDBServer::MemoryIDBBackingStore::generateKeyNumber): Throw an error if the current
+          value is already over 2^53.
+        (WebCore::IDBServer::MemoryIDBBackingStore::revertGeneratedKeyNumber):
+        (WebCore::IDBServer::MemoryIDBBackingStore::maybeUpdateKeyGeneratorNumber): Handle double -&gt; uint64_t
+          conversions properly when calculating the next key.
+        * Modules/indexeddb/server/MemoryIDBBackingStore.h:
+        
+        * Modules/indexeddb/server/UniqueIDBDatabase.cpp:
+        (WebCore::IDBServer::ScopeGuard::ScopeGuard): Add this utility class to call a function 
+          any time it goes out of scope.
+        (WebCore::IDBServer::ScopeGuard::~ScopeGuard):
+        (WebCore::IDBServer::ScopeGuard::enable):
+        (WebCore::IDBServer::ScopeGuard::disable):
+        (WebCore::IDBServer::UniqueIDBDatabase::performPutOrAdd): Revert the key generator value if
+          the put/add operation ends in error.
+
+2016-01-11  Brady Eidson  &lt;beidson@apple.com&gt;
+
</ins><span class="cx">         Modern IDB: storage/indexeddb/lazy-index-population.html fails.
</span><span class="cx">         https://bugs.webkit.org/show_bug.cgi?id=152976
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesindexeddbserverIDBBackingStoreh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/indexeddb/server/IDBBackingStore.h (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/indexeddb/server/IDBBackingStore.h        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/Source/WebCore/Modules/indexeddb/server/IDBBackingStore.h        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -72,6 +72,7 @@
</span><span class="cx">     virtual IDBError getIndexRecord(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, IndexedDB::IndexRecordType, const IDBKeyRangeData&amp;, IDBGetResult&amp; outValue) = 0;
</span><span class="cx">     virtual IDBError getCount(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, const IDBKeyRangeData&amp;, uint64_t&amp; outCount) = 0;
</span><span class="cx">     virtual IDBError generateKeyNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t&amp; keyNumber) = 0;
</span><ins>+    virtual IDBError revertGeneratedKeyNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t keyNumber) = 0;
</ins><span class="cx">     virtual IDBError maybeUpdateKeyGeneratorNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, double newKeyNumber) = 0;
</span><span class="cx">     virtual IDBError openCursor(const IDBResourceIdentifier&amp; transactionIdentifier, const IDBCursorInfo&amp;, IDBGetResult&amp; outResult) = 0;
</span><span class="cx">     virtual IDBError iterateCursor(const IDBResourceIdentifier&amp; transactionIdentifier, const IDBResourceIdentifier&amp; cursorIdentifier, const IDBKeyData&amp;, uint32_t count, IDBGetResult&amp; outResult) = 0;
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesindexeddbserverMemoryIDBBackingStorecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.cpp (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.cpp        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.cpp        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -38,6 +38,9 @@
</span><span class="cx"> namespace WebCore {
</span><span class="cx"> namespace IDBServer {
</span><span class="cx"> 
</span><ins>+// The IndexedDB spec states the value you can get from the key generator is 2^53
+static uint64_t maxGeneratedKeyValue = 0x20000000000000;
+
</ins><span class="cx"> std::unique_ptr&lt;MemoryIDBBackingStore&gt; MemoryIDBBackingStore::create(const IDBDatabaseIdentifier&amp; identifier)
</span><span class="cx"> {
</span><span class="cx">     return std::make_unique&lt;MemoryIDBBackingStore&gt;(identifier);
</span><span class="lines">@@ -343,11 +346,29 @@
</span><span class="cx">     RELEASE_ASSERT(objectStore);
</span><span class="cx"> 
</span><span class="cx">     keyNumber = objectStore-&gt;currentKeyGeneratorValue();
</span><ins>+    if (keyNumber &gt; maxGeneratedKeyValue)
+        return { IDBDatabaseException::ConstraintError, &quot;Cannot generate new key value over 2^53 for object store operation&quot; };
+
</ins><span class="cx">     objectStore-&gt;setKeyGeneratorValue(keyNumber + 1);
</span><span class="cx"> 
</span><span class="cx">     return IDBError();
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+IDBError MemoryIDBBackingStore::revertGeneratedKeyNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t keyNumber)
+{
+    LOG(IndexedDB, &quot;MemoryIDBBackingStore::revertGeneratedKeyNumber&quot;);
+    ASSERT(objectStoreIdentifier);
+    ASSERT_UNUSED(transactionIdentifier, m_transactions.contains(transactionIdentifier));
+    ASSERT_UNUSED(transactionIdentifier, m_transactions.get(transactionIdentifier)-&gt;isWriting());
+
+    MemoryObjectStore* objectStore = m_objectStoresByIdentifier.get(objectStoreIdentifier);
+    RELEASE_ASSERT(objectStore);
+
+    objectStore-&gt;setKeyGeneratorValue(keyNumber);
+
+    return { };
+}
+
</ins><span class="cx"> IDBError MemoryIDBBackingStore::maybeUpdateKeyGeneratorNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, double newKeyNumber)
</span><span class="cx"> {
</span><span class="cx">     LOG(IndexedDB, &quot;MemoryIDBBackingStore::maybeUpdateKeyGeneratorNumber&quot;);
</span><span class="lines">@@ -362,10 +383,10 @@
</span><span class="cx">         return { };
</span><span class="cx"> 
</span><span class="cx">     uint64_t newKeyInteger(newKeyNumber);
</span><del>-    if (newKeyInteger &lt;= newKeyNumber)
</del><ins>+    if (newKeyInteger &lt;= uint64_t(newKeyNumber))
</ins><span class="cx">         ++newKeyInteger;
</span><span class="cx"> 
</span><del>-    ASSERT(newKeyInteger &gt; newKeyNumber);
</del><ins>+    ASSERT(newKeyInteger &gt; uint64_t(newKeyNumber));
</ins><span class="cx"> 
</span><span class="cx">     objectStore-&gt;setKeyGeneratorValue(newKeyInteger);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesindexeddbserverMemoryIDBBackingStoreh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.h (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.h        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/Source/WebCore/Modules/indexeddb/server/MemoryIDBBackingStore.h        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -64,6 +64,7 @@
</span><span class="cx">     virtual IDBError getIndexRecord(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, IndexedDB::IndexRecordType, const IDBKeyRangeData&amp;, IDBGetResult&amp; outValue) override final;
</span><span class="cx">     virtual IDBError getCount(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, const IDBKeyRangeData&amp;, uint64_t&amp; outCount) override final;
</span><span class="cx">     virtual IDBError generateKeyNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t&amp; keyNumber) override final;
</span><ins>+    virtual IDBError revertGeneratedKeyNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t keyNumber) override final;
</ins><span class="cx">     virtual IDBError maybeUpdateKeyGeneratorNumber(const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, double newKeyNumber) override final;
</span><span class="cx">     virtual IDBError openCursor(const IDBResourceIdentifier&amp; transactionIdentifier, const IDBCursorInfo&amp;, IDBGetResult&amp; outResult) override final;
</span><span class="cx">     virtual IDBError iterateCursor(const IDBResourceIdentifier&amp; transactionIdentifier, const IDBResourceIdentifier&amp; cursorIdentifier, const IDBKeyData&amp;, uint32_t count, IDBGetResult&amp; outResult) override final;
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesindexeddbserverUniqueIDBDatabasecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/indexeddb/server/UniqueIDBDatabase.cpp (194863 => 194864)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/indexeddb/server/UniqueIDBDatabase.cpp        2016-01-11 21:31:04 UTC (rev 194863)
+++ trunk/Source/WebCore/Modules/indexeddb/server/UniqueIDBDatabase.cpp        2016-01-11 21:37:35 UTC (rev 194864)
</span><span class="lines">@@ -653,6 +653,37 @@
</span><span class="cx">     return *globalObject.get()-&gt;globalExec();
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+class ScopeGuard {
+public:
+    ScopeGuard()
+    {
+    }
+
+    ScopeGuard(std::function&lt;void()&gt; function)
+        : m_function(WTFMove(function))
+    {
+    }
+
+    ~ScopeGuard()
+    {
+        if (m_function)
+            m_function();
+    }
+
+    void enable(std::function&lt;void()&gt; function)
+    {
+        m_function = WTFMove(function);
+    }
+
+    void disable()
+    {
+        m_function = nullptr;
+    }
+
+private:
+    std::function&lt;void()&gt; m_function { nullptr };
+};
+
</ins><span class="cx"> void UniqueIDBDatabase::performPutOrAdd(uint64_t callbackIdentifier, const IDBResourceIdentifier&amp; transactionIdentifier, uint64_t objectStoreIdentifier, const IDBKeyData&amp; keyData, const ThreadSafeDataBuffer&amp; originalRecordValue, IndexedDB::ObjectStoreOverwriteMode overwriteMode)
</span><span class="cx"> {
</span><span class="cx">     ASSERT(!isMainThread());
</span><span class="lines">@@ -672,6 +703,7 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     bool usedKeyIsGenerated = false;
</span><ins>+    ScopeGuard generatedKeyResetter;
</ins><span class="cx">     if (objectStoreInfo-&gt;autoIncrement() &amp;&amp; !keyData.isValid()) {
</span><span class="cx">         uint64_t keyNumber;
</span><span class="cx">         error = m_backingStore-&gt;generateKeyNumber(transactionIdentifier, objectStoreIdentifier, keyNumber);
</span><span class="lines">@@ -682,6 +714,9 @@
</span><span class="cx">         
</span><span class="cx">         usedKey.setNumberValue(keyNumber);
</span><span class="cx">         usedKeyIsGenerated = true;
</span><ins>+        generatedKeyResetter.enable([this, transactionIdentifier, objectStoreIdentifier, keyNumber]() {
+            m_backingStore-&gt;revertGeneratedKeyNumber(transactionIdentifier, objectStoreIdentifier, keyNumber);
+        });
</ins><span class="cx">     } else
</span><span class="cx">         usedKey = keyData;
</span><span class="cx"> 
</span><span class="lines">@@ -743,6 +778,7 @@
</span><span class="cx">     if (overwriteMode != IndexedDB::ObjectStoreOverwriteMode::OverwriteForCursor &amp;&amp; objectStoreInfo-&gt;autoIncrement() &amp;&amp; keyData.type() == IndexedDB::KeyType::Number)
</span><span class="cx">         error = m_backingStore-&gt;maybeUpdateKeyGeneratorNumber(transactionIdentifier, objectStoreIdentifier, keyData.number());
</span><span class="cx"> 
</span><ins>+    generatedKeyResetter.disable();
</ins><span class="cx">     m_server.postDatabaseTaskReply(createCrossThreadTask(*this, &amp;UniqueIDBDatabase::didPerformPutOrAdd, callbackIdentifier, error, usedKey));
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre>
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