工作代碼片段-boost::asio

同步服務端：

boost::timer tm; 
io_service is; 
ip::tcp::acceptor acceptor(is, ip::tcp::endpoint(ip::tcp::v4(), 8000)); 
for(;;) { 
    ip::tcp::socket so(is); 
    acceptor.accept(so); 
    char buf[501]; 
    error_code ec; 
    so.read_some(buffer(buf), ec); 
    buf[500] = '\0'; 
    cout << buf << endl; 
    cout << "all time:"<<tm.elapsed() << endl; 
} 
同步客戶端：

io_service is; 
ip::tcp::socket socket(is); 
ip::tcp::endpoint  ep(ip::address_v4::from_string("192.168.3.33"), 8000); 
 
socket.connect(ep); 
error_code ec; 
char buff[500]; 
memset(buff, '9', 500); 
socket.write_some(buffer(buff, 500), ec); 
return NULL; 

異步服務端：

    io_service is; 
    ip::tcp::acceptor ac(is, ip::tcp::endpoint(ip::tcp::v4(), 8000)); 
 
    boost::shared_ptr<ip::tcp::socket> psocket(new ip::tcp::socket(is)); 
    ac.async_accept(*psocket, boost::bind(accept_f, psocket, _1)); 
    is.run(); 
 
void accept_f(boost::shared_ptr<ip::tcp::socket> pso, error_code ec) 
{ 
    std::cout << pso->remote_endpoint().address() << std::endl; 
    boost::shared_ptr<string> pstr(new string("999999999999999999999999")); 
    psocket->async_write_some(buffer(*pstr), boost::bind(write_f, pstr, _1, _2)); 
} 
void write_f(boost::shared_ptr<std::string> pstr, error_code ec, 
                   size_t bytes_transferred) 
{ 
} 

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