[Coco] Drivewire4 - Java problem

Sun Sep 1 09:41:51 EDT 2013

Mr Gault,
The multiple instances is not the real problem, that's just minor, it's the fact that java is not shutting down properly when I close dw4 and will not allow me to open dw4 again till java takes it's sweet time (minutes)and exits.

But the multiple instance cmd line I got from Aaron a while back... like a year and a half ago?
I been running like that since then for multiple Cocos and emulators.
To configure DW4 for multiple instances, you DO need a "config.xml" for each instance. I had this going before, and it worked up until I reinstalled windows.
According to Aaron's notes, 

--- Aaron's email quote ---

Ok.. to do multiple instances/devices requires a good understanding of the many ways/options to launching DW.
First, a "normal" open, same thing that happens if you double click on the .exe launcher thing:
Open a command prompt, cd to wherever DW lives, enter:

java -jar DW4UI.jar

You'll get the typical behavior.
Now, let's open a second GUI to the same server.  So with the 'normal' instance still running, open another command prompt and do:

java -jar DW4UI.jar -noserver

This tells DW you just want another GUI, not another server.  You'll now have 2 GUIs that are both connected to the server started by the first.

Now... you want to control 2 different devices (a serial port and a tcp port).  There are 2 ways to do this.  You can either run one server with 2 instance definitions, or you can run 2 servers.  The GUI doesn't understand the first form very well, so lets just run 2 servers.

Again, our first device is basically covered by the default way we run DW.  To run a second server that talks to a second device, we need a second config file for it.  So..

Copy config.xml to something, say conf2.xml

Edit conf2.xml to make sure we have different UI ports.. we can't use the same port from 2 different programs at once. So edit conf2.xml and look for

<UIPort category="advanced" max="65535" min="1" type="int">6800</UIPort>

or maybe just

<UIPort>6800</UIPort>

(same thing, one just has extra details used by the config editor)
Change the 6800 to something else, anything that's free is fine.  Lets use 6799.
Now lets start up the second server (assuming you still have server #1 running):

java -jar DW4UI.jar -noui -config conf2.xml

Now we have 2 servers running and 1 GUI running, which is showing us the first server. To switch to the second server, we go to the GUI and in the File menu "Choose Server", enter '127.0.0.1:6799'. This switches the GUI to the second server.  To switch back, its '127.0.0.1:6800' (should be in the history drop down, makes switching back and forth easy).

Or maybe you want a GUI for each server.  No problem, start the second GUI with:

java -jar DW4UI.jar --noserver

and use File menu to attach to second server.

Hope that makes sense!  There is a lot of flexibility.  Try:

java -jar DW4UI.jar -help

for all the available command line options. These control the runtime behavior of that particular DW instance.

-Aaron

--- end quote --

Bill Pierce
My Music from the Tandy/Radio Shack Color Computer 2 & 3
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-----Original Message-----
From: Robert Gault <robert.gault at att.net>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Sun, Sep 1, 2013 9:03 am
Subject: Re: [Coco] Drivewire4 - Java problem

Bill Pierce wrote:
>
> Hi,
> After a complete (reformat) re-installation of my Windows Vista Home Premium 
64 bit system and re-installing the latest Java package, I've noticed that when 
I run Drivewire4 then close it, I cannot reopen Drivewire 4 until the java 
applet removes itself from memory. This sometimes takes a few minutes. If I 
click on the DW4 icon during this time, nothing happens. When the java app 
finally disappears from the services list in task manager, I can once again run 
Drivewire.
> In my previous Windows install (same version of windows and java) I did not 
see this problem. Since I use both 32 bit and 64 bit browsers, the Java site 
suggested I install both 32 & 64 bit installations of Java. I'm pretty sure I 
had the same thing on my previous install of java.
>
> Multiple instances of DW4 are not happening either. Before, I could run 
several instances of dw4. Now after starting the first instance, no other 
instance will start.
> I feel this is a Java problem and not DW4. Does anyone know what may cause 
Java not to close itself after the dw4 software closes?
>
> Thanks
>
> Bill Pierce

With a WinXP 32-bit system and the current JAVA package, I can almost get two 
DW4 windows functioning. There is an error message which may well explain what 
is necessary to really get multiple windows running.

=======================================================
D:\Coco\DW4>java -Xmx256M -jar DW4UI.jar --backup
01 Sep 2013 08:50:50 INFO  [dwserver-8    ] DriveWire Server v4.3.3o starting
Error 0x5 at ..\src\termios.c(887): Access is denied.

Warning: NineServer port already in use.  Is another DW4UI running?
=======================================================

Looks like each DW4 window will need its own config.xml indicating different 
ports and maybe disk mounts.

Robert

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