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 "SocketStreamHandleBase.h"
33
34 #include "SocketStreamHandle.h"
35 #include "SocketStreamHandleClient.h"
36
37 namespace WebCore {
38
39 const unsigned int bufferSize = 100 * 1024 * 1024;
40
SocketStreamHandleBase(const KURL & url,SocketStreamHandleClient * client)41 SocketStreamHandleBase::SocketStreamHandleBase(const KURL& url, SocketStreamHandleClient* client)
42 : m_url(url)
43 , m_client(client)
44 , m_state(Connecting)
45 {
46 }
47
state() const48 SocketStreamHandleBase::SocketStreamState SocketStreamHandleBase::state() const
49 {
50 return m_state;
51 }
52
send(const char * data,int length)53 bool SocketStreamHandleBase::send(const char* data, int length)
54 {
55 if (m_state == Connecting)
56 return false;
57 if (!m_buffer.isEmpty()) {
58 if (m_buffer.size() + length > bufferSize) {
59 // FIXME: report error to indicate that buffer has no more space.
60 return false;
61 }
62 m_buffer.append(data, length);
63 return true;
64 }
65 int bytesWritten = 0;
66 if (m_state == Open)
67 bytesWritten = platformSend(data, length);
68 if (bytesWritten < 0)
69 return false;
70 if (m_buffer.size() + length - bytesWritten > bufferSize) {
71 // FIXME: report error to indicate that buffer has no more space.
72 return false;
73 }
74 if (bytesWritten < length)
75 m_buffer.append(data + bytesWritten, length - bytesWritten);
76 return true;
77 }
78
close()79 void SocketStreamHandleBase::close()
80 {
81 RefPtr<SocketStreamHandle> protect(static_cast<SocketStreamHandle*>(this)); // platformClose calls the client, which may make the handle get deallocated immediately.
82
83 platformClose();
84 m_state = Closed;
85 }
86
setClient(SocketStreamHandleClient * client)87 void SocketStreamHandleBase::setClient(SocketStreamHandleClient* client)
88 {
89 ASSERT(!client || (!m_client && m_state == Connecting));
90 m_client = client;
91 }
92
sendPendingData()93 bool SocketStreamHandleBase::sendPendingData()
94 {
95 if (m_state != Open)
96 return false;
97 if (m_buffer.isEmpty())
98 return false;
99 int bytesWritten = platformSend(m_buffer.data(), m_buffer.size());
100 if (bytesWritten <= 0)
101 return false;
102 Vector<char> remainingData;
103 ASSERT(m_buffer.size() - bytesWritten <= bufferSize);
104 remainingData.append(m_buffer.data() + bytesWritten, m_buffer.size() - bytesWritten);
105 m_buffer.swap(remainingData);
106 return true;
107 }
108
109 } // namespace WebCore
110