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2. 与C类材料之间的双向交流
原标题:2-way communication with C sockets

我试图用两种方式在C袖珍之间沟通。 为了建立袖珍目录,我遵循了有关这一链接的指示(http://www.linuxhowtos.org/C_C++/socket.htm),所有材料都做了罚款。 客户向服务器发送信息的工作非常有效。

然而,我也希望服务器能够向客户发出回复信息。 如何做到这一点? 如果我同时建立客户和服务器联系,其中之一不能约束。

<>edit/strong>更多代码。 目前,我使用了这种袖珍的风格,将其编为++的法典,这只是因为我很熟悉。 Ignore the Object-Orientness.

//main call
if (server)
    {
        Connection recv(true, "servername");
        recv.GetMsg();
        recv.SendMsg("test", 4);
    }
    else // client
    {
        Connection snd(false, "servername");
        snd.GetMsg();
        snd.SendMsg("this is a test", 14);
    }

在连接班子内,

void SendMsg(char *msg, int msg_length)
{
        send(some_socket, msg, msg_length, 0);
};

void GetMsg()
{
        recvd = recv(opponent_socket, buffer, sizeof(buffer), 0);
        buffer[recvd] =   ;
        cout << "Printing msg: " << buffer << endl;
};

Connection::Connection(bool isserver, char *servername)
{
    is_server = isserver;
    server = servername;
    opponent_socket = 0;
    some_socket = socket(PF_INET, SOCK_STREAM, 0);

    if (some_socket < 0)
    {
        cout << "Connection failed.
" << endl;
        exit(-1);
    }

    if (is_server)
    {
        AddrSetupServer(); // standard calls here.  Pretty well what s shown in link provided
        BindServer();
        ListenServer();
        WaitConnectionServer();
    }
    else
    {
        AddrSetupClient();
        ConnectClient();
    }
};
最佳回答

一旦与你有关系,那是双向的;只是寄出你对议事日程的答复。

问题回答

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