Date: Mon, 16 Aug 2004 09:46:40 +0800
From: "wilson loi" <wilson.loi@senao.com.tw>
Subject: Re: [nanogui] Patch for NONNETWORK NxLib

Hi,

I think the most reason that I change the GrPeekEvent GsSelect is because of
the 'XEventsQueued'

this NxLIB code would block the system if it does not "Peek" any event
-----------------------------------
int XEventQueue(...)
{
        ...

        if (!ret && mode != QueueAlready) {
            if (mode = QueueAfterFlush)
                    GrFlush();
            if (GrPeekEvent(&temp))   <-----------------------------------
            {
                ret = 1;
            }
        }
    }
}
------------------------------------

On the other hand, I am curious that Microwindows will release the next
version.  Since the last release is 2003/6

Thanks a lot !

Wilson.


----- Original Message ----- 
From: "Greg Haerr" <greg@censoft.com>
To: "wilson loi" <wilson.loi@senao.com.tw>; <nanogui@linuxhacker.org>
Sent: Friday, August 13, 2004 11:00 PM
Subject: Re: [nanogui] Patch for NONNETWORK NxLib


> : Here is a patch for NxLib running on NONNETWORK. However, I don't know
if
> it
> : is correct or not. Can someone give me some comment ???
>
> Yes - it looks pretty good, thanks!
>
>
> : I found that the GrPeekEvent will block if there is no event on the
list.
> So
> : I change the GsSelect(-1) to GsSelect(0);
> : It is valid or not ?
> :
> :
> : @@ -169,7 +169,8 @@
> :  #if NONETWORK
> :   /* if no events on queue, force select() event check*/
> :   if (elp == NULL) {
> : -  GsSelect(-1L); /* poll*/
> : +  GsSelect(0); /* poll */
>
> The original code above is required for the normal NONETWORK
> case.  (Also, the 'poll' comment should be 'wait').  We've got
> to figure a way to change this to polling only when NXLIB
> is linked.  This is because the X server operates just a little
> differently with regards to exactly how a client waits on
> an X event, which forces nano-X to poll here, as you've coded it.
> (NXLIB issues a seperate select() so it's not always polling)
>
> Regards,
>
> Greg
>
>


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