/*************************************************************************
  > File Name: ipc_tcp_client.cpp
  > Author: TianLun Song
  > Mail: songtianlun@frytea.com
  > Blog: https://blog.frytea.com
  > Created Time: Wed 13 Jan 2021 10:14:09 AM CST
 ************************************************************************/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <memory.h>
#include <unistd.h>
#include <stdio.h>
#include <iostream>

using namespace std;

const char* server_file = "/tmp/ipc_tcp_server.sock";
const char* client_file = "/tmp/ipc_tcp_client.sock";

int main(int argc,char** argv)
{
    int socket_fd = socket(AF_UNIX,SOCK_STREAM,0);
    if (socket_fd < 0)
    {
        perror("client socket");
        return -1;
    }
    struct sockaddr_un client_addr;
    memset(&client_addr,0,sizeof(client_addr));
    client_addr.sun_family = AF_UNIX;
    strcpy(client_addr.sun_path,client_file);

    if (access(client_addr.sun_path,0) != -1)
    {
        remove(client_addr.sun_path);
    }

    if(bind(socket_fd,(sockaddr*)&client_addr,sizeof(client_addr)) < 0)
    {
        perror("client bind");
        return -1;
    }
    struct sockaddr_un serveraddr;
    memset(&serveraddr,0,sizeof(serveraddr));
    socklen_t addrlen = sizeof(serveraddr);
    serveraddr.sun_family = AF_UNIX;
    strcpy(serveraddr.sun_path,server_file);
    char msg_buf[1024];
    /* --------DIFF, ipc tcp only------------ */
    int newcon = -1;
    newcon = connect(socket_fd,(sockaddr*)&serveraddr,addrlen);
    if (newcon < 0){
        perror("client connect");
    }
    /* ---------------end------------ */
    while(1)
    {
        strcpy(msg_buf, "How are you !!!");
        int ssize = send(socket_fd, msg_buf, sizeof msg_buf, 0);
        if (ssize < 0)
        {
            perror("client send");
            continue;
        }
        int rsize = recv(socket_fd, msg_buf, sizeof(msg_buf), 0);
        if (rsize < 0)
        {
            perror("client recv");
            continue;
        }
        cout << "I'm Unix socket(TCP) client，receive a msg :" << msg_buf << endl;
        sleep(1);
    }
    if (close(socket_fd) < 0)
    {
        perror("close");
        return -1;
    }
    return 0;
}