1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/socket/tcp_server_socket.h"
#include <utility>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/logging.h"
#include "net/base/net_errors.h"
#include "net/socket/tcp_client_socket.h"
namespace net {
TCPServerSocket::TCPServerSocket(NetLog* net_log, const NetLog::Source& source)
: socket_(net_log, source),
pending_accept_(false) {
}
TCPServerSocket::~TCPServerSocket() {
}
int TCPServerSocket::Listen(const IPEndPoint& address, int backlog) {
int result = socket_.Open(address.GetFamily());
if (result != OK)
return result;
result = socket_.SetDefaultOptionsForServer();
if (result != OK) {
socket_.Close();
return result;
}
result = socket_.Bind(address);
if (result != OK) {
socket_.Close();
return result;
}
result = socket_.Listen(backlog);
if (result != OK) {
socket_.Close();
return result;
}
return OK;
}
int TCPServerSocket::GetLocalAddress(IPEndPoint* address) const {
return socket_.GetLocalAddress(address);
}
int TCPServerSocket::Accept(scoped_ptr<StreamSocket>* socket,
const CompletionCallback& callback) {
DCHECK(socket);
DCHECK(!callback.is_null());
if (pending_accept_) {
NOTREACHED();
return ERR_UNEXPECTED;
}
// It is safe to use base::Unretained(this). |socket_| is owned by this class,
// and the callback won't be run after |socket_| is destroyed.
CompletionCallback accept_callback =
base::Bind(&TCPServerSocket::OnAcceptCompleted, base::Unretained(this),
socket, callback);
int result = socket_.Accept(&accepted_socket_, &accepted_address_,
accept_callback);
if (result != ERR_IO_PENDING) {
// |accept_callback| won't be called so we need to run
// ConvertAcceptedSocket() ourselves in order to do the conversion from
// |accepted_socket_| to |socket|.
result = ConvertAcceptedSocket(result, socket);
} else {
pending_accept_ = true;
}
return result;
}
void TCPServerSocket::DetachFromThread() {
socket_.DetachFromThread();
}
int TCPServerSocket::ConvertAcceptedSocket(
int result,
scoped_ptr<StreamSocket>* output_accepted_socket) {
// Make sure the TCPSocket object is destroyed in any case.
scoped_ptr<TCPSocket> temp_accepted_socket(std::move(accepted_socket_));
if (result != OK)
return result;
output_accepted_socket->reset(
new TCPClientSocket(std::move(temp_accepted_socket), accepted_address_));
return OK;
}
void TCPServerSocket::OnAcceptCompleted(
scoped_ptr<StreamSocket>* output_accepted_socket,
const CompletionCallback& forward_callback,
int result) {
result = ConvertAcceptedSocket(result, output_accepted_socket);
pending_accept_ = false;
forward_callback.Run(result);
}
} // namespace net
|
