forked from jbandela/stackless_coroutine
-
Notifications
You must be signed in to change notification settings - Fork 0
/
perf_writer.cpp
126 lines (103 loc) · 2.54 KB
/
perf_writer.cpp
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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
//
// transmit_file.cpp
// ~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2015 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 <ctime>
#include <iostream>
#include <string>
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <boost/asio.hpp>
std::vector<char> big_buffer;
using namespace boost::asio::ip;
class connection
: public boost::enable_shared_from_this<connection>
{
public:
typedef boost::shared_ptr<connection> pointer;
static pointer create(boost::asio::io_service& io_service)
{
return pointer(new connection(io_service));
}
tcp::socket& socket()
{
return socket_;
}
void start()
{
boost::system::error_code ec;
boost::asio::write(socket_, boost::asio::buffer(big_buffer.data(), big_buffer.size()));
boost::system::error_code ignored_ec;
socket_.shutdown(tcp::socket::shutdown_both, ignored_ec);
}
private:
connection(boost::asio::io_service& io_service)
: socket_(io_service)
{
}
tcp::socket socket_;
};
class server
{
public:
server(boost::asio::io_service& io_service,
unsigned short port)
: acceptor_(io_service, tcp::endpoint(tcp::v4(), port))
{
start_accept();
}
private:
void start_accept()
{
connection::pointer new_connection =
connection::create(acceptor_.get_io_service());
acceptor_.async_accept(new_connection->socket(),
boost::bind(&server::handle_accept, this, new_connection,
boost::asio::placeholders::error));
}
void handle_accept(connection::pointer new_connection,
const boost::system::error_code& error)
{
if (!error)
{
new_connection->start();
}
start_accept();
}
tcp::acceptor acceptor_;
std::string filename_;
};
#include <algorithm>
int main(int argc, char* argv[])
{
if (argc != 3)
{
std::cerr << "Usage: transmit_file <port> <size>\n";
return 1;
}
std::cout << "Initializing buffer\n";
std::uint64_t size = std::stoll(argv[2]);
big_buffer.resize(size);
for (std::uint64_t i = 0; i < big_buffer.size(); ++i) {
big_buffer[i] = i & 0xFF;
}
std::cout << "Done Initializing buffer\n";
try
{
boost::asio::io_service io_service;
using namespace std; // For atoi.
server s(io_service, atoi(argv[1]));
io_service.run();
}
catch (std::exception& e)
{
std::cerr << e.what() << std::endl;
}
return 0;
}