asio的使用

1、下载

性能测试：https://github.com/huyuguang/asio_benchmark

2、基本使用

2.1 TCP

1、客户端：
2、服务端：

2.2 UDP单揪

boost的asio接收单路大数据量udp包的方法
1、发送：
2、接收：

#include "CircledBuffer.h"  
#include <iostream>  
#include <boost/asio.hpp>  
#include <boost/bind.hpp> 

using boost::asio::ip::udp;  
boost::asio::io_service service;  
boost::asio::ip::udp::socket sock(service);  
boost::asio::ip::udp::endpoint sender_ep;  
CircledBuffer readBuffer;  
PacketBuffer* packet;  

int main(int argc, char* argv[]) {  
    boost::asio::ip::udp::endpoint ep( boost::asio::ip::address::from_string("192.168.1.206"),  
        9002);  
    sock.open(ep.protocol());  
    sock.set_option(boost::asio::ip::udp::socket::reuse_address(true));  
    boost::asio::socket_base::receive_buffer_size recv_option(8*65534);  
    sock.set_option(recv_option);  
    sock.bind(ep);  
    packet = readBuffer.GetLast();  
    sock.async_receive_from(boost::asio::buffer(packet->data, packet->bufferSize), sender_ep, &on_read);  
    service.run();  
}  


void on_read(const boost::system::error_code & err, std::size_t  read_bytes) 
{  
     std::cout << "read: " << read_bytes << std::endl;  
     readBuffer.MoveNext();  
     packet= readBuffer.GetLast();  
     sock.async_receive_from(boost::asio::buffer(packet->data, packet->bufferSize), sender_ep, &on_read);  
}  

2.3 udp组播

1、发送：
2、接收：