libhv/evpp/UdpClient_test.cpp

/*
 * UdpClient_test.cpp
 *
 * @build   make evpp
 * @server  bin/UdpServer_test 1234
 * @client  bin/UdpClient_test 1234
 *
 */

#include <iostream>

#include "UdpClient.h"
#include "htime.h"

using namespace hv;

int main(int argc, char* argv[]) {
    if (argc < 2) {
        printf("Usage: %s remote_port [remote_host]\n", argv[0]);
        return -10;
    }
    int remote_port = atoi(argv[1]);
    const char* remote_host = "127.0.0.1";
    if (argc > 2) {
        remote_host = argv[2];
    }

    UdpClient cli;
    int sockfd = cli.createsocket(remote_port, remote_host);
    if (sockfd < 0) {
        return -20;
    }
    printf("client sendto port %d, sockfd=%d ...\n", remote_port, sockfd);
    cli.onMessage = [](const SocketChannelPtr& channel, Buffer* buf) {
        printf("< %.*s\n", (int)buf->size(), (char*)buf->data());
    };
    cli.start();

    // sendto(time) every 3s
    cli.loop()->setInterval(3000, [&cli](TimerID timerID) {
        char str[DATETIME_FMT_BUFLEN] = {0};
        datetime_t dt = datetime_now();
        datetime_fmt(&dt, str);
        cli.sendto(str);
    });

    std::string str;
    while (std::getline(std::cin, str)) {
        if (str == "close") {
            cli.closesocket();
        } else if (str == "start") {
            cli.start();
        } else if (str == "stop") {
            cli.stop();
            break;
        } else {
            cli.sendto(str);
        }
    }

    return 0;
}