c++基于asio的组播:windows linux通信

上代码，非常简单，使用参数控制发送和接收

#define _CRT_SECURE_NO_WARNINGS
#include 

// 3rd party includes.
#include 
#include 
#include 
using namespace std;
using namespace asio::ip;
void read(asio::ip::udp::socket& socket)
{
	asio::ip::udp::endpoint sender;
	std::vector buffer;
	std::size_t bytes_readable = 0;
	for (;;)
	{
		// Poll until data is available.
		while (!bytes_readable)
		{
			// Issue command to socket to get number of bytes readable.
			asio::socket_base::bytes_readable num_of_bytes_readable(true);
			socket.io_control(num_of_bytes_readable);

			// Get the value from the command.
			bytes_readable = num_of_bytes_readable.get();

			// If there is no data available, then sleep.
			if (!bytes_readable)
			{
				std::this_thread::sleep_for(std::chrono::milliseconds(200));
				//boost::this_thread::sleep(boost::posix_time::seconds(1));
			}
		}

		// Resize the buffer to store all available data.
		buffer.resize(bytes_readable);

		// Read available data.
		socket.receive_from(
			asio::buffer(buffer, bytes_readable),
			sender);

		// Extract data from the buffer.
		std::string message(buffer.begin(), buffer.end());

		// Output data.
		std::cout