boost之网络通信

ip::tcp的内部类型socket,acceptor以及resolver是TCP通信中最核心的类。

1.同步客户端代码：

#include <iostream>
#include <boost/asio.hpp>
#include <boost/asio/ip/address.hpp>
using namespace std;
using namespace boost::asio;
 
using namespace boost;
 
int main()
{
	io_service ios;
	cout << "client start." <<endl;
	ip::tcp::socket sock(ios);
	ip::tcp::endpoint ep(ip::address::from_string("192.168.1.100"),6688);
	sock.connect(ep);
	vector<char> str(100,0);
	sock.read_some(buffer(str));
	cout << "recive from" << sock.remote_endpoint().address();
	cout << &str[0] <<endl;
	while(1);
	return 0;
}

同步服务器端代码：

#include <iostream>
#include <boost/asio.hpp>
#include <boost/asio/ip/address.hpp>
using namespace std;
using namespace boost::asio;
 
using namespace boost;
 
int main()
{
	io_service ios;
	cout << "server start." <<endl;
	//boost::asio::ip::tcp::acceptor acceptor(ios,boost::asio::ip:tcp::endpoint(boost::asio::ip::tcp::v4(),6688));
	//
	ip::tcp::acceptor acc(ios,ip::tcp::endpoint(ip::tcp::v4(),6688));
	cout << acc.local_endpoint().address() <<endl;
	while (true)
	{
		ip::tcp::socket sock(ios);
		acc.accept(sock);
		cout << sock.remote_endpoint().address() <<endl;
		sock.write_some(buffer("hello asio"));
	}
	return 0;
}

2.异步服务器端代码，两个异步过程一个是接受连接异步处理->另外一个是写对象处理

#include <iostream>
#include <boost/asio.hpp>
#include <boost/asio/ip/address.hpp>
#include <boost/bind.hpp>
using namespace std;
using namespace boost::asio;
 
using namespace boost;
 
class server
{
private:
	io_service& ios;//引用不能拷贝
	ip::tcp::acceptor acceptor;
	typedef shared_ptr<ip::tcp::socket> sock_pt;
public:
	server(io_service& io):ios(io),
		acceptor(ios,ip::tcp::endpoint(ip::tcp::v4(),6688))
	{
		start();
	}
	void start()
	{
		sock_pt sock(new ip::tcp::socket(ios));
		acceptor.async_accept(*sock,bind(&server::accept_handler,this,sock));
	}
	void accept_handler(sock_pt sock)
	{
		cout << "client:";
		cout << sock->remote_endpoint().address() <<endl;
		sock->async_write_some(buffer("hello asio"),bind(&server::write_handler,this));
	}
	void write_handler()
	{
		cout << "send msg complete." <<endl;
	}
};
 
int main()
{
	io_service ios;
	cout << "server start." <<endl;
	server serv(ios);
	ios.run();
 
	return 0;
}