Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!wuarchive!uunet!overload!dillon
From: dillon@overload.Berkeley.CA.US (Matthew Dillon)
Newsgroups: comp.sys.amiga.datacomm
Subject: Re: DNET Programming
Message-ID: <dillon.7623@overload.Berkeley.CA.US>
Date: 12 May 91 18:03:04 GMT
References: <1991May11.140241.626@nic.csu.net>
Organization: Not an Organization
Lines: 61

In article <1991May11.140241.626@nic.csu.net> rkent@sparc1.sparc1.csubak.edu (Rick Kent) writes:
>Has anyone tried programming some client/server programs to utilize
>DNET?	I'm attempting to write a graphical, window-based, mouse-driven
>bulletin board system that will use DNET as the underlying communication
>protocol.  The only problem is that some of the functions are missing
>from Matt's original code.  I've been trying to write these routines
>based soley on what I believe they're supposed to do, but so far haven't
>had much luck.  The missing functions include the following:
>
>	BCmp(), WaitMsg(), BMov(), GetHead(), GetDEnv(), etc.
>
>The WaitMsg() function is the one giving me the trouble right now.  If
>anyone else has attempted to write any DNET clients or servers, then
>they will have to have rewritten these missing functions.  I've asked
>Matt if there is perhaps a new version coming soon, but it appears that
>it may be about 6 months before he has the time to revise it and he no
>longer has these missing routines.  He's real busy right now with Amiga
>UUCP.	If anybody has coded up or has a copy of these missing routines,
>I could sure use them!
>
>--
>Rick Kent						// Only
>California State University, Bakersfield	      \X/  Amiga!
>Internet: rkent@sparc1.csubak.edu
>AOL: RickK10

    Here's WaitMsg() .. .this works for messages passed between tasks
    which is all DNet does.  To make it work w/ messages passed from
    interrupts you have to use Disable()/Enable().

					-Matt

#include <exec/types.h>
#include <exec/ports.h>
#include <clib/exec_protos.h>
#include <stdio.h>

typedef struct Message Message;
typedef struct MsgPort MsgPort;

void WaitMsg(Message *);

void
WaitMsg(msg)
Message *msg;
{
    while (msg->mn_Node.ln_Type != NT_REPLYMSG)
	Wait(1 << msg->mn_ReplyPort->mp_SigBit);
    Forbid();
    Remove(&msg->mn_Node);
    Permit();
}



--

    Matthew Dillon	    dillon@Overload.Berkeley.CA.US
    891 Regal Rd.	    uunet.uu.net!overload!dillon
    Berkeley, Ca. 94708
    USA