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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/extensions/api/socket/socket.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "base/lazy_instance.h" | |
9 #include "extensions/browser/api/api_resource_manager.h" | |
10 #include "net/base/address_list.h" | |
11 #include "net/base/io_buffer.h" | |
12 #include "net/base/ip_endpoint.h" | |
13 #include "net/base/net_errors.h" | |
14 #include "net/socket/socket.h" | |
15 | |
16 namespace extensions { | |
17 | |
18 const char kSocketTypeNotSupported[] = "Socket type does not support this API"; | |
19 | |
20 static base::LazyInstance< | |
21 BrowserContextKeyedAPIFactory<ApiResourceManager<Socket> > > g_factory = | |
22 LAZY_INSTANCE_INITIALIZER; | |
23 | |
24 // static | |
25 template <> | |
26 BrowserContextKeyedAPIFactory<ApiResourceManager<Socket> >* | |
27 ApiResourceManager<Socket>::GetFactoryInstance() { | |
28 return g_factory.Pointer(); | |
29 } | |
30 | |
31 Socket::Socket(const std::string& owner_extension_id) | |
32 : ApiResource(owner_extension_id), is_connected_(false) {} | |
33 | |
34 Socket::~Socket() { | |
35 // Derived destructors should make sure the socket has been closed. | |
36 DCHECK(!is_connected_); | |
37 } | |
38 | |
39 void Socket::Write(scoped_refptr<net::IOBuffer> io_buffer, | |
40 int byte_count, | |
41 const CompletionCallback& callback) { | |
42 DCHECK(!callback.is_null()); | |
43 write_queue_.push(WriteRequest(io_buffer, byte_count, callback)); | |
44 WriteData(); | |
45 } | |
46 | |
47 void Socket::WriteData() { | |
48 // IO is pending. | |
49 if (io_buffer_write_.get()) | |
50 return; | |
51 | |
52 WriteRequest& request = write_queue_.front(); | |
53 | |
54 DCHECK(request.byte_count >= request.bytes_written); | |
55 io_buffer_write_ = new net::WrappedIOBuffer(request.io_buffer->data() + | |
56 request.bytes_written); | |
57 int result = | |
58 WriteImpl(io_buffer_write_.get(), | |
59 request.byte_count - request.bytes_written, | |
60 base::Bind(&Socket::OnWriteComplete, base::Unretained(this))); | |
61 | |
62 if (result != net::ERR_IO_PENDING) | |
63 OnWriteComplete(result); | |
64 } | |
65 | |
66 void Socket::OnWriteComplete(int result) { | |
67 io_buffer_write_ = NULL; | |
68 | |
69 WriteRequest& request = write_queue_.front(); | |
70 | |
71 if (result >= 0) { | |
72 request.bytes_written += result; | |
73 if (request.bytes_written < request.byte_count) { | |
74 WriteData(); | |
75 return; | |
76 } | |
77 DCHECK(request.bytes_written == request.byte_count); | |
78 result = request.bytes_written; | |
79 } | |
80 | |
81 request.callback.Run(result); | |
82 write_queue_.pop(); | |
83 | |
84 if (!write_queue_.empty()) | |
85 WriteData(); | |
86 } | |
87 | |
88 bool Socket::SetKeepAlive(bool enable, int delay) { return false; } | |
89 | |
90 bool Socket::SetNoDelay(bool no_delay) { return false; } | |
91 | |
92 int Socket::Listen(const std::string& address, | |
93 int port, | |
94 int backlog, | |
95 std::string* error_msg) { | |
96 *error_msg = kSocketTypeNotSupported; | |
97 return net::ERR_FAILED; | |
98 } | |
99 | |
100 void Socket::Accept(const AcceptCompletionCallback& callback) { | |
101 callback.Run(net::ERR_FAILED, NULL); | |
102 } | |
103 | |
104 // static | |
105 bool Socket::StringAndPortToIPEndPoint(const std::string& ip_address_str, | |
106 int port, | |
107 net::IPEndPoint* ip_end_point) { | |
108 DCHECK(ip_end_point); | |
109 net::IPAddressNumber ip_number; | |
110 if (!net::ParseIPLiteralToNumber(ip_address_str, &ip_number)) | |
111 return false; | |
112 | |
113 *ip_end_point = net::IPEndPoint(ip_number, port); | |
114 return true; | |
115 } | |
116 | |
117 bool Socket::StringAndPortToAddressList(const std::string& ip_address_str, | |
118 int port, | |
119 net::AddressList* address_list) { | |
120 DCHECK(address_list); | |
121 net::IPAddressNumber ip_number; | |
122 if (!net::ParseIPLiteralToNumber(ip_address_str, &ip_number)) | |
123 return false; | |
124 | |
125 *address_list = net::AddressList::CreateFromIPAddress(ip_number, port); | |
126 return true; | |
127 } | |
128 | |
129 void Socket::IPEndPointToStringAndPort(const net::IPEndPoint& address, | |
130 std::string* ip_address_str, | |
131 int* port) { | |
132 DCHECK(ip_address_str); | |
133 DCHECK(port); | |
134 *ip_address_str = address.ToStringWithoutPort(); | |
135 if (ip_address_str->empty()) { | |
136 *port = 0; | |
137 } else { | |
138 *port = address.port(); | |
139 } | |
140 } | |
141 | |
142 Socket::WriteRequest::WriteRequest(scoped_refptr<net::IOBuffer> io_buffer, | |
143 int byte_count, | |
144 const CompletionCallback& callback) | |
145 : io_buffer(io_buffer), | |
146 byte_count(byte_count), | |
147 callback(callback), | |
148 bytes_written(0) {} | |
149 | |
150 Socket::WriteRequest::~WriteRequest() {} | |
151 | |
152 } // namespace extensions | |
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