Index: third_party/WebKit/WebCore/dom/CrossThreadCopier.h |
=================================================================== |
--- third_party/WebKit/WebCore/dom/CrossThreadCopier.h (revision 0) |
+++ third_party/WebKit/WebCore/dom/CrossThreadCopier.h (revision 9118) |
@@ -0,0 +1,113 @@ |
+/* |
+ * Copyright (C) 2009 Google 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: |
+ * |
+ * * Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * * 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. |
+ * * Neither the name of Google Inc. nor the names of its |
+ * contributors may be used to endorse or promote products derived from |
+ * this software without specific prior written permission. |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+ * "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 THE COPYRIGHT |
+ * OWNER 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 CrossThreadCopier_h |
+#define CrossThreadCopier_h |
+ |
+#if ENABLE(WORKERS) |
+ |
+#include <memory> |
+#include <wtf/PassRefPtr.h> |
+#include <wtf/RefPtr.h> |
+#include <wtf/Threading.h> |
+#include <wtf/TypeTraits.h> |
+ |
+namespace WebCore { |
+ |
+ class ResourceError; |
+ class ResourceRequest; |
+ class ResourceResponse; |
+ class String; |
+ struct CrossThreadResourceResponseData; |
+ struct CrossThreadResourceRequestData; |
+ |
+ template<typename T> struct CrossThreadCopierPassThrough { |
+ typedef T Type; |
+ static Type copy(const T& parameter) |
+ { |
+ return parameter; |
+ } |
+ }; |
+ |
+ template<bool isConvertibleToInteger, typename T> struct CrossThreadCopierBase; |
+ |
+ // Integers get passed through without any changes. |
+ template<typename T> struct CrossThreadCopierBase<true, T> : public CrossThreadCopierPassThrough<T> { |
+ }; |
+ |
+ // Pointers get passed through without any significant changes. |
+ template<typename T> struct CrossThreadCopierBase<false, T*> : public CrossThreadCopierPassThrough<T*> { |
+ }; |
+ |
+ // Custom copy methods. |
+ template<typename T> struct CrossThreadCopierBase<false, RefPtr<ThreadSafeShared<T> > > { |
+ typedef PassRefPtr<T> Type; |
+ static Type copy(const RefPtr<ThreadSafeShared<T> >& refPtr) |
+ { |
+ return PassRefPtr<T>(static_cast<T*>(refPtr.get())); |
+ } |
+ }; |
+ |
+ template<typename T> struct CrossThreadCopierBase<false, std::auto_ptr<T> > { |
+ typedef std::auto_ptr<T> Type; |
+ static Type copy(const std::auto_ptr<T>& autoPtr) |
+ { |
+ return std::auto_ptr<T>(*const_cast<std::auto_ptr<T>*>(&autoPtr)); |
+ } |
+ }; |
+ |
+ template<> struct CrossThreadCopierBase<false, String> { |
+ typedef String Type; |
+ static Type copy(const String&); |
+ }; |
+ |
+ template<> struct CrossThreadCopierBase<false, ResourceError> { |
+ typedef ResourceError Type; |
+ static Type copy(const ResourceError&); |
+ }; |
+ |
+ template<> struct CrossThreadCopierBase<false, ResourceRequest> { |
+ typedef std::auto_ptr<CrossThreadResourceRequestData> Type; |
+ static Type copy(const ResourceRequest&); |
+ }; |
+ |
+ template<> struct CrossThreadCopierBase<false, ResourceResponse> { |
+ typedef std::auto_ptr<CrossThreadResourceResponseData> Type; |
+ static Type copy(const ResourceResponse&); |
+ }; |
+ |
+ template<typename T> struct CrossThreadCopier : public CrossThreadCopierBase<WTF::IsConvertibleToInteger<T>::value, T> { |
+ }; |
+ |
+} // namespace WebCore |
+ |
+#endif // ENABLE(WORKERS) |
+ |
+#endif // CrossThreadCopier_h |