libhv开源库简单使用

一、libh

libhv是一个类似于libevent、libev、libuv的跨平台网络库，提供了更易用的接口和更丰富的协议。

项目开源地址：https://gitee.com/libhv/libhv

二、编译安装

Linux系统下编译非常简单，使用Makefile进行编译

./configure

make

make install

 编译完成后会生成头文件和库文件

三、websocket服务端测试

#include "WebSocketServer.h"
#include <thread>
#include <string>

using namespace hv;

int main(int argc, char** argv) {
    if (argc < 2) {
        printf("Usage: %s port\n", argv[0]);
        return -1;
    }
    int port = atoi(argv[1]);

    WebSocketService ws;
    ws.onopen = [](const WebSocketChannelPtr& channel, const std::string& url) {
        printf("onopen: GET %s\n", url.c_str());
        std::string str = "hello";
        channel->send(str);
    };

    ws.onmessage = [=](const WebSocketChannelPtr& channel, const std::string& msg) {
        printf("onmessage: %.*s\n", (int)msg.size(), msg.data());
        channel->send(msg);
    };

    ws.onclose = [](const WebSocketChannelPtr& channel) {
        printf("onclose\n");
    };

    websocket_server_t server;
    server.port = port;
    server.ws = &ws;
    websocket_server_run(&server, 0);

    // press Enter to stop
    while (getchar() != '\n');
    websocket_server_stop(&server);
    return 0;
}