74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
/*************************************************************************
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> File Name: ipc_udp_client.cpp
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> Author: TianLun Song
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> Mail: songtianlun@frytea.com
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> Blog: https://blog.frytea.com
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> Created Time: Wed 13 Jan 2021 10:14:09 AM CST
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************************************************************************/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <memory.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <iostream>
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using namespace std;
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const char* server_file = "/tmp/criu/ipc_udp_server.sock";
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const char* client_file = "/tmp/criu/ipc_udp_client.sock";
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int main(int argc,char** argv)
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{
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int socket_fd = socket(AF_UNIX,SOCK_DGRAM,0);
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if (socket_fd < 0)
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{
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perror("client socket");
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return -1;
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}
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struct sockaddr_un client_addr;
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memset(&client_addr,0,sizeof(client_addr));
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client_addr.sun_family = AF_UNIX;
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strcpy(client_addr.sun_path,client_file);
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if (access(client_addr.sun_path,0) != -1)
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{
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remove(client_addr.sun_path);
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}
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if(bind(socket_fd,(sockaddr*)&client_addr,sizeof(client_addr)) < 0)
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{
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perror("client bind");
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return -1;
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}
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struct sockaddr_un serveraddr;
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memset(&serveraddr,0,sizeof(serveraddr));
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socklen_t addrlen = sizeof(serveraddr);
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serveraddr.sun_family = AF_UNIX;
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strcpy(serveraddr.sun_path,server_file);
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char msg_buf[1024];
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while(1)
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{
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strcpy(msg_buf, "How are you !!!");
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int ssize = sendto(socket_fd, msg_buf, sizeof msg_buf, 0, (sockaddr*)&serveraddr,addrlen);
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if (ssize < 0)
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{
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perror("client sendto");
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continue;
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}
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int rsize = recvfrom(socket_fd, msg_buf, sizeof(msg_buf), 0,(sockaddr*)&serveraddr, &addrlen);
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if (rsize < 0)
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{
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perror("client recv");
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continue;
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}
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cout << "I'm Unix socket(UDP) client，receive a msg :" << msg_buf << endl;
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sleep(1);
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}
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if (close(socket_fd) < 0)
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{
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perror("close");
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return -1;
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}
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return 0;
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} |