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
|
//
// connect_timeout.cpp
// ~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include <boost/date_time/posix_time/posix_time_types.hpp>
#include <iostream>
using namespace boost::asio;
using boost::asio::ip::tcp;
class connect_handler
{
public:
connect_handler(io_service& ios)
: io_service_(ios),
timer_(ios),
socket_(ios)
{
socket_.async_connect(
tcp::endpoint(boost::asio::ip::address_v4::loopback(), 32123),
boost::bind(&connect_handler::handle_connect, this,
boost::asio::placeholders::error));
timer_.expires_from_now(boost::posix_time::seconds(5));
timer_.async_wait(boost::bind(&connect_handler::close, this));
}
void handle_connect(const boost::system::error_code& err)
{
if (err)
{
std::cout << "Connect error: " << err.message() << "\n";
}
else
{
std::cout << "Successful connection\n";
}
}
void close()
{
socket_.close();
}
private:
io_service& io_service_;
deadline_timer timer_;
tcp::socket socket_;
};
int main()
{
try
{
io_service ios;
tcp::acceptor a(ios, tcp::endpoint(tcp::v4(), 32123), 1);
// Make lots of connections so that at least some of them will block.
connect_handler ch1(ios);
connect_handler ch2(ios);
connect_handler ch3(ios);
connect_handler ch4(ios);
connect_handler ch5(ios);
connect_handler ch6(ios);
connect_handler ch7(ios);
connect_handler ch8(ios);
connect_handler ch9(ios);
ios.run();
}
catch (std::exception& e)
{
std::cerr << "Exception: " << e.what() << "\n";
}
return 0;
}
|
