Re: How to use socket conditions ?

[Carl Nygard <cjnygard gmail com>]

Not sure how glib socket handles this, but typically for socket disconnects you'll get an indication that 
there is content ready to read on the socket (say, from a select call) but when you read from the socket, it 
reports zero bytes and no errors. That's the indication that the other side hung up. 

--carl

> On Jul 11, 2015, at 12:09 AM, Jacques Pelletier <jpelletier ieee org> wrote:
>
> Hi,
>
> I'm using a glib socket: when a client (glib) is connected to a server, the client doesn't get the HUP 
> messages when the server closes its connection.
>
> Here is my code below:
>
> gboolean SocketPollRead(gpointer data)
> {
>  switch (g_socket_condition_check(ptSocket,G_IO_IN | G_IO_ERR | G_IO_HUP)) // doc says G_IO_HUP isn't 
> needed here
>    {
>        case G_IO_IN:
>            /* Works fine, no problems */
>            ptSocketInNbBytes = g_socket_receive(ptSocket,ptSocketInBuffer,1024,NULL,NULL);
>            GuiTerminalPutInput((unsigned char *) ptSocketInBuffer,ptSocketInNbBytes);
>            break;
>        case G_IO_ERR:
>            /* I don't get any printed messages when server disconnects */
>            fprintf(stderr,"Socket ERR\n");
>            SocketClose();
>            break;
>        case G_IO_HUP:
>            /* I don't get any printed messages when server disconnects */
>            fprintf(stderr,"Socket HUP\n");
>            SocketClose();
>            break;
>        default:
>        ;
>    }
>
>  return Poll_Socket;
> }
>
> How do I make this work?
>
> Thanks!
>
> JP
>
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