1/* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32 33#include "CrossThreadCopier.h" 34 35#include "KURL.h" 36#include "ResourceError.h" 37#include "ResourceRequest.h" 38#include "ResourceResponse.h" 39#include "SerializedScriptValue.h" 40#include <wtf/Assertions.h> 41#include <wtf/text/WTFString.h> 42 43namespace WebCore { 44 45CrossThreadCopierBase<false, false, KURL>::Type CrossThreadCopierBase<false, false, KURL>::copy(const KURL& url) 46{ 47 return url.copy(); 48} 49 50CrossThreadCopierBase<false, false, String>::Type CrossThreadCopierBase<false, false, String>::copy(const String& str) 51{ 52 return str.isolatedCopy(); 53} 54 55CrossThreadCopierBase<false, false, ResourceError>::Type CrossThreadCopierBase<false, false, ResourceError>::copy(const ResourceError& error) 56{ 57 return error.copy(); 58} 59 60CrossThreadCopierBase<false, false, ResourceRequest>::Type CrossThreadCopierBase<false, false, ResourceRequest>::copy(const ResourceRequest& request) 61{ 62 return request.copyData(); 63} 64 65CrossThreadCopierBase<false, false, ResourceResponse>::Type CrossThreadCopierBase<false, false, ResourceResponse>::copy(const ResourceResponse& response) 66{ 67 return response.copyData(); 68} 69 70// Test CrossThreadCopier using COMPILE_ASSERT. 71 72// Verify that ThreadSafeRefCounted objects get handled correctly. 73class CopierThreadSafeRefCountedTest : public ThreadSafeRefCounted<CopierThreadSafeRefCountedTest> { 74}; 75 76COMPILE_ASSERT((WTF::IsSameType< 77 PassRefPtr<CopierThreadSafeRefCountedTest>, 78 CrossThreadCopier<PassRefPtr<CopierThreadSafeRefCountedTest> >::Type 79 >::value), 80 PassRefPtrTest); 81COMPILE_ASSERT((WTF::IsSameType< 82 PassRefPtr<CopierThreadSafeRefCountedTest>, 83 CrossThreadCopier<RefPtr<CopierThreadSafeRefCountedTest> >::Type 84 >::value), 85 RefPtrTest); 86COMPILE_ASSERT((WTF::IsSameType< 87 PassRefPtr<CopierThreadSafeRefCountedTest>, 88 CrossThreadCopier<CopierThreadSafeRefCountedTest*>::Type 89 >::value), 90 RawPointerTest); 91 92 93// Add a generic specialization which will let's us verify that no other template matches. 94template<typename T> struct CrossThreadCopierBase<false, false, T> { 95 typedef int Type; 96}; 97 98// Verify that RefCounted objects only match our generic template which exposes Type as int. 99class CopierRefCountedTest : public RefCounted<CopierRefCountedTest> { 100}; 101 102COMPILE_ASSERT((WTF::IsSameType< 103 int, 104 CrossThreadCopier<PassRefPtr<CopierRefCountedTest> >::Type 105 >::value), 106 PassRefPtrRefCountedTest); 107 108COMPILE_ASSERT((WTF::IsSameType< 109 int, 110 CrossThreadCopier<RefPtr<CopierRefCountedTest> >::Type 111 >::value), 112 RefPtrRefCountedTest); 113 114COMPILE_ASSERT((WTF::IsSameType< 115 int, 116 CrossThreadCopier<CopierRefCountedTest*>::Type 117 >::value), 118 RawPointerRefCountedTest); 119 120// Verify that PassOwnPtr gets passed through. 121COMPILE_ASSERT((WTF::IsSameType< 122 PassOwnPtr<float>, 123 CrossThreadCopier<PassOwnPtr<float> >::Type 124 >::value), 125 PassOwnPtrTest); 126 127// Verify that PassOwnPtr does not get passed through. 128COMPILE_ASSERT((WTF::IsSameType< 129 int, 130 CrossThreadCopier<OwnPtr<float> >::Type 131 >::value), 132 OwnPtrTest); 133 134} // namespace WebCore 135