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 "platform/CrossThreadCopier.h"
34
35 #include "platform/network/ResourceError.h"
36 #include "platform/network/ResourceRequest.h"
37 #include "platform/network/ResourceResponse.h"
38 #include "platform/weborigin/KURL.h"
39 #include "wtf/text/WTFString.h"
40
41 namespace blink {
42
copy(const KURL & url)43 CrossThreadCopierBase<false, false, false, KURL>::Type CrossThreadCopierBase<false, false, false, KURL>::copy(const KURL& url)
44 {
45 return url.copy();
46 }
47
copy(const String & str)48 CrossThreadCopierBase<false, false, false, String>::Type CrossThreadCopierBase<false, false, false, String>::copy(const String& str)
49 {
50 return str.isolatedCopy();
51 }
52
copy(const ResourceError & error)53 CrossThreadCopierBase<false, false, false, ResourceError>::Type CrossThreadCopierBase<false, false, false, ResourceError>::copy(const ResourceError& error)
54 {
55 return error.copy();
56 }
57
copy(const ResourceRequest & request)58 CrossThreadCopierBase<false, false, false, ResourceRequest>::Type CrossThreadCopierBase<false, false, false, ResourceRequest>::copy(const ResourceRequest& request)
59 {
60 return request.copyData();
61 }
62
copy(const ResourceResponse & response)63 CrossThreadCopierBase<false, false, false, ResourceResponse>::Type CrossThreadCopierBase<false, false, false, ResourceResponse>::copy(const ResourceResponse& response)
64 {
65 return response.copyData();
66 }
67
68 // Test CrossThreadCopier using COMPILE_ASSERT.
69
70 // Verify that ThreadSafeRefCounted objects get handled correctly.
71 class CopierThreadSafeRefCountedTest : public ThreadSafeRefCounted<CopierThreadSafeRefCountedTest> {
72 };
73
74 COMPILE_ASSERT((WTF::IsSameType<
75 PassRefPtr<CopierThreadSafeRefCountedTest>,
76 CrossThreadCopier<PassRefPtr<CopierThreadSafeRefCountedTest> >::Type
77 >::value),
78 PassRefPtrTest);
79 COMPILE_ASSERT((WTF::IsSameType<
80 PassRefPtr<CopierThreadSafeRefCountedTest>,
81 CrossThreadCopier<RefPtr<CopierThreadSafeRefCountedTest> >::Type
82 >::value),
83 RefPtrTest);
84 COMPILE_ASSERT((WTF::IsSameType<
85 PassRefPtr<CopierThreadSafeRefCountedTest>,
86 CrossThreadCopier<CopierThreadSafeRefCountedTest*>::Type
87 >::value),
88 RawPointerTest);
89
90
91 // Add a generic specialization which will let's us verify that no other template matches.
92 template<typename T> struct CrossThreadCopierBase<false, false, false, T> {
93 typedef int Type;
94 };
95
96 // Verify that RefCounted objects only match our generic template which exposes Type as int.
97 class CopierRefCountedTest : public RefCounted<CopierRefCountedTest> {
98 };
99
100 COMPILE_ASSERT((WTF::IsSameType<
101 int,
102 CrossThreadCopier<PassRefPtr<CopierRefCountedTest> >::Type
103 >::value),
104 PassRefPtrRefCountedTest);
105
106 COMPILE_ASSERT((WTF::IsSameType<
107 int,
108 CrossThreadCopier<RefPtr<CopierRefCountedTest> >::Type
109 >::value),
110 RefPtrRefCountedTest);
111
112 COMPILE_ASSERT((WTF::IsSameType<
113 int,
114 CrossThreadCopier<CopierRefCountedTest*>::Type
115 >::value),
116 RawPointerRefCountedTest);
117
118 // Verify that PassOwnPtr gets passed through.
119 COMPILE_ASSERT((WTF::IsSameType<
120 PassOwnPtr<float>,
121 CrossThreadCopier<PassOwnPtr<float> >::Type
122 >::value),
123 PassOwnPtrTest);
124
125 // Verify that PassOwnPtr does not get passed through.
126 COMPILE_ASSERT((WTF::IsSameType<
127 int,
128 CrossThreadCopier<OwnPtr<float> >::Type
129 >::value),
130 OwnPtrTest);
131
132 } // namespace blink
133