Linux和windows下setsockopt用法

Linux和windows下setsockopt用法

linux:

    struct timeval timeout={3,0};//3s

    int ret=setsockopt(sock_fd,SOL_SOCKET,SO_SNDTIMEO,&timeout,sizeof(timeout));

    int ret=setsockopt(sock_fd,SOL_SOCKET,SO_RCVTIMEO,&timeout,sizeof(timeout));

    如果ret==0 则为成功,-1为失败,这时可以查看errno来判断失败原因

    int recvd=recv(sock_fd,buf,1024,0);

    if(recvd==-1&&errno==EAGAIN)
    {
         printf("timeout\n");
    }

windows:

	int timeout = 3000; //3s
	
	int ret=setsockopt(sock_fd,SOL_SOCKET,SO_SNDTIMEO,(char*)&timeout,sizeof(timeout));
	
	int ret=setsockopt(sock_fd,SOL_SOCKET,SO_RCVTIMEO,(char*)&timeout,sizeof(timeout));