最近在寻找一种跨平台的socket编程库，最初找到的是curl，使用比较简单，但是用起来不是那么容易理解，curl功能比较强大，封装了很多通信协议，例如TCP, UDP, HTTP等。
后来无意中发现boost，然后网上找到他的中文手册，大概浏览下了，嗯。。，这就是我想要的，轻巧，跨平台，支持C++11标准，按照网上标准教程进行安装，我的平台是ubuntu16.04，安装后头文件目录：/usr/local/include/boost，lib库文件目录：/usr/local/lib.
不说了，先上栗子，新手记得慢点吃：）
一、UDP 客户端
#ifdef WIN32
#define _WIN32_WINNT 0x0501
#include <stdio.h>
#endif
#include <boost/thread.hpp>
#include <boost/bind.hpp>
#include <boost/asio.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <iostream>
using namespace boost::asio;
io_service service;
ip::udp::endpoint ep(ip::address::from_string("127.0.0.1"), 8001);
void sync_echo(std::string msg) {
ip::udp::socket sock(service, ip::udp::endpoint(ip::udp::v4(), 0));
sock.send_to(buffer(msg), ep);
char buff[1024];
ip::udp::endpoint sender_ep;
int bytes = sock.receive_from(buffer(buff), sender_ep);
std::string copy(buff, bytes);
std::cout << "server echoed us " << msg << ": "<< (copy == msg ? "OK" : "FAIL") << std::endl;
sock.close();
}
int main(int argc, char* argv[]) {
char* messages[] = { "I", "love", "beautiful" , "girl" , 0 };
boost::thread_group threads;
for (char ** message = messages; *message; ++message) {
threads.create_thread(boost::bind(sync_echo, *message));
boost::this_thread::sleep(boost::posix_time::millisec(100));
}
threads.join_all();
system("pause");
}
编译命令：
g++ UdpClient.cpp -o UdpClient -I /usr/local/include/boost/ -L /usr/local/lib -lboost_thread -lpthread
二、UDP服务端
#ifdef WIN32
#define _WIN32_WINNT 0x0501
#include <stdio.h>
#endif
#include <boost/bind.hpp>
#include <boost/asio.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <iostream>
using namespace boost::asio;
using namespace boost::posix_time;
io_service service;
void handle_connections() {
char buff[1024];
ip::udp::socket sock(service, ip::udp::endpoint(ip::udp::v4(), 8001));
while (true) {
ip::udp::endpoint sender_ep;
int bytes = sock.receive_from(buffer(buff), sender_ep);
std::string msg(buff, bytes);
sock.send_to(buffer(msg), sender_ep);
std::cout<<msg<<std::endl;
}
}
int main(int argc, char* argv[]) {
handle_connections();
}
编译命令：
g++ UdpServer.cpp -o UdpSever -I /usr/local/include/boost/ -L /usr/local/lib -lpthread
三、运行结果
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