Changeset 37190 in webkit for trunk/JavaScriptCore/kjs/JSGlobalData.h

Timestamp:

Oct 2, 2008, 9:18:56 AM (17 years ago)

Author:

[email protected]

Message:

Reviewed by Darin Adler.

​https://bugs.webkit.org/show_bug.cgi?id=21304
Stop using a static wrapper map for WebCore JS bindings

The static domObjects map was not thread safe.

• dom/Document.h: (WebCore::Document::messagePorts): Added an accessor for JSDocument to iterate over message ports. (WebCore::Document::xmlHttpRequests): Ditto for XMLHttpRequests.

• dom/Document.cpp: (WebCore::Document::createdXMLHttpRequest): (WebCore::Document::destroyedXMLHttpRequest): Moved XMLHttpRequest tracking from a global map to Document.

• GNUmakefile.am:
• WebCore.pro:
• WebCore.vcproj/WebCore.vcproj:
• WebCore.xcodeproj/project.pbxproj:
• WebCoreSources.bkl:
• webcore-base.bkl:
• bindings/DOMProtect.cpp: Removed.
• bindings/DOMProtect.h: Removed. Removed gcProtect(Unprotect)DOMObject - its callers do not have a JSGlobalData reference, so they can no longer protect bindings objects.

• dom/MessagePort.cpp: (WebCore::CloseMessagePortTimer::CloseMessagePortTimer): (WebCore::CloseMessagePortTimer::fired): (WebCore::MessagePort::MessagePort): (WebCore::MessagePort::queueCloseEvent): (WebCore::MessagePort::setPendingActivity): (WebCore::MessagePort::unsetPendingActivity):
• dom/MessagePort.h: (WebCore::MessagePort::hasPendingActivity): MessagePort now counts outstanding async events, so JSDocument::mark can decide whether to protect it.

• xml/XMLHttpRequest.h: (WebCore::XMLHttpRequest::hasPendingActivity):
• xml/XMLHttpRequest.cpp: (WebCore::XMLHttpRequest::XMLHttpRequest): (WebCore::XMLHttpRequest::~XMLHttpRequest): (WebCore::XMLHttpRequest::loadRequestAsynchronously): (WebCore::XMLHttpRequest::dropProtection): (WebCore::XMLHttpRequest::didFinishLoadingPreflight): (WebCore::XMLHttpRequest::cancelRequests): (WebCore::XMLHttpRequest::detachRequests): (WebCore::XMLHttpRequest::setPendingActivity): (WebCore::XMLHttpRequest::unsetPendingActivity): Moved XMLHttpRequest tracking from a global map to Document.

• bindings/js/JSDOMBinding.cpp: (WebCore::wrapperSet): (WebCore::DOMObjectWrapperMap::mapFor): (WebCore::DOMObjectWrapperMap::get): (WebCore::DOMObjectWrapperMap::set): (WebCore::DOMObjectWrapperMap::remove): (WebCore::getCachedDOMObjectWrapper): (WebCore::cacheDOMObjectWrapper): (WebCore::forgetDOMObject): (WebCore::getCachedDOMNodeWrapper): (WebCore::forgetDOMNode): (WebCore::cacheDOMNodeWrapper): (WebCore::markActiveObjectsForDocument):
• bindings/js/JSDOMBinding.h: (WebCore::createDOMObjectWrapper): (WebCore::getDOMObjectWrapper): Wrapper map is now kept as JSGlobalData::clientData. Also changed debug-only wrapperSet to be per-thread (this is slower than going to JSGlobalData, but fast enough for debug). WebCore objects can never migrate between threads.

• bindings/js/JSDocumentCustom.cpp: (WebCore::JSDocument::mark): Call markActiveObjectsForDocument() from JSDOMBinding.

• bindings/js/JSCSSRuleCustom.cpp: (WebCore::toJS):
• bindings/js/JSCSSValueCustom.cpp: (WebCore::toJS):
• bindings/js/JSDOMWindowCustom.cpp: (WebCore::markDOMObjectWrapper): (WebCore::JSDOMWindow::mark):
• bindings/js/JSEventCustom.cpp: (WebCore::toJS):
• bindings/js/JSEventTarget.cpp: (WebCore::toJS):
• bindings/js/JSHTMLCollectionCustom.cpp: (WebCore::toJS):
• bindings/js/JSImageDataCustom.cpp: (WebCore::toJS):
• bindings/js/JSMessageChannelCustom.cpp: (WebCore::JSMessageChannel::mark):
• bindings/js/JSMessagePortCustom.cpp: (WebCore::JSMessagePort::mark):
• bindings/js/JSNodeCustom.cpp: (WebCore::JSNode::mark):
• bindings/js/JSSVGPathSegCustom.cpp: (WebCore::toJS):
• bindings/js/JSStyleSheetCustom.cpp: (WebCore::toJS):
• bindings/js/JSXMLHttpRequestCustom.cpp: (WebCore::JSXMLHttpRequest::mark):
• bindings/js/JSXMLHttpRequestUploadCustom.cpp: (WebCore::JSXMLHttpRequestUpload::mark):
• bindings/js/ScriptController.cpp: (WebCore::ScriptController::finishedWithEvent):
• bindings/scripts/CodeGeneratorJS.pm: Pass a JSGlobalData reference to functions that track JS wrapper objects.

JavaScriptCore:

• kjs/JSGlobalData.cpp: (JSC::JSGlobalData::JSGlobalData): (JSC::JSGlobalData::~JSGlobalData): (JSC::JSGlobalData::ClientData::~ClientData):
• kjs/JSGlobalData.h: Added a client data member to JSGlobalData. WebCore will use it to store bindings-related global data.

• JavaScriptCore.exp: Export virtual ClientData destructor.

File:

• trunk/JavaScriptCore/kjs/JSGlobalData.h (modified) (1 diff)

trunk/JavaScriptCore/kjs/JSGlobalData.h

@@ -97 +97 @@
         bool isSharedInstance;
 
+        struct ClientData {
+            virtual ~ClientData() = 0;
+        };
+
+        ClientData* clientData;
+
         HashSet<JSObject*> arrayVisitedElements;