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 #include "WebData.h"
33
34 #include "SharedBuffer.h"
35
36 using namespace WebCore;
37
38 namespace WebKit {
39
40 class WebDataPrivate : public SharedBuffer {
41 };
42
reset()43 void WebData::reset()
44 {
45 if (m_private) {
46 m_private->deref();
47 m_private = 0;
48 }
49 }
50
assign(const WebData & other)51 void WebData::assign(const WebData& other)
52 {
53 WebDataPrivate* p = const_cast<WebDataPrivate*>(other.m_private);
54 if (p)
55 p->ref();
56 assign(p);
57 }
58
assign(const char * data,size_t size)59 void WebData::assign(const char* data, size_t size)
60 {
61 assign(static_cast<WebDataPrivate*>(
62 SharedBuffer::create(data, size).releaseRef()));
63 }
64
size() const65 size_t WebData::size() const
66 {
67 if (!m_private)
68 return 0;
69 return const_cast<WebDataPrivate*>(m_private)->size();
70 }
71
data() const72 const char* WebData::data() const
73 {
74 if (!m_private)
75 return 0;
76 return const_cast<WebDataPrivate*>(m_private)->data();
77 }
78
WebData(const PassRefPtr<SharedBuffer> & buffer)79 WebData::WebData(const PassRefPtr<SharedBuffer>& buffer)
80 : m_private(static_cast<WebDataPrivate*>(buffer.releaseRef()))
81 {
82 }
83
operator =(const PassRefPtr<SharedBuffer> & buffer)84 WebData& WebData::operator=(const PassRefPtr<SharedBuffer>& buffer)
85 {
86 assign(static_cast<WebDataPrivate*>(buffer.releaseRef()));
87 return *this;
88 }
89
operator PassRefPtr<SharedBuffer>() const90 WebData::operator PassRefPtr<SharedBuffer>() const
91 {
92 return PassRefPtr<SharedBuffer>(const_cast<WebDataPrivate*>(m_private));
93 }
94
assign(WebDataPrivate * p)95 void WebData::assign(WebDataPrivate* p)
96 {
97 // p is already ref'd for us by the caller
98 if (m_private)
99 m_private->deref();
100 m_private = p;
101 }
102
103 } // namespace WebKit
104