c++ - 设置套接字超时？

Question

使用套接字，我不确定如何设置超时？

谢谢

int sock, connected, bytes_recieved;
char send_data [128] , recv_data[128];       
SOCKADDR_IN server_addr,client_addr;    
int sin_size;
int j = 0;

::socket(AF_INET, SOCK_STREAM, 0);

server_addr.sin_family = AF_INET;         
server_addr.sin_port = htons(4000);     
server_addr.sin_addr.s_addr = INADDR_ANY; 

::bind(sock, (struct sockaddr *)&server_addr, sizeof(struct sockaddr));
::listen(sock, 5);
::fflush(stdout);

while(1)
{  
    sin_size = sizeof(struct sockaddr_in);
    connected = ::accept(sock, (struct sockaddr *)&client_addr, &sin_size);

    while (1)
    {
        j++;

        ::send(connected, send_data, strlen(send_data), 0);  

        //dealing with lost communication ? 
        //and reastablishing communication
        //set timeout and reset on timeout error    
    }
}
::closesocket(sock);

Answer 1

您需要使用 setsockopt设置 SO_SNDTIMEO 和/或 SO_RCVTIMEO 选项。