I think with the native viewer or even the java viewer launched directly,
the standard behavior of the listen mode is fine and makes sense. But when
using the java viewer via javaws, the viewer runs in the background until
connected to a server and opens the viewer's window. Then the user closes
the viewer window and the viewer continues to run in the background
unbeknownst to the naive user. Later he wants to connect the viewer a
server again so he launches the jnlp again which starts a new viewer
listening on the same port. This time he gets a scary message about being
unable to open a socket to listen on.
Maybe instead of a "listen once" option, a popup to ask the user to keep
the viewer listening or shut it down. Not sure what the best solution would
be, but the message about the occupied socket can lead a novice user to
believe something broke. Currently, the only way to shutdown the viewer (at
least on my linux box) is to kill the java process.
On Wed, May 8, 2013 at 6:01 PM, DRC <dcomman...@users.sourceforge.net>wrote:
> The first issue is a legitimate bug, it appears. As to the second
> issue, I believe that this is the way all VNC viewers behave when in
> listen mode, but correct me if I'm wrong. I know that it's the way the
> TurboVNC native viewers behave, because that was what we used as a basis
> for the behavior of the Java viewer. A listening VNC viewer acts like a
> server, so it will keep serving until you shut it down. I don't have
> any philosophical objections to adding a "listen once" option. I just
> need a better understanding of why it is needed.
>
>
> On 5/7/13 2:32 PM, Kevin Van Workum wrote:
> > When running the java viewer in listen mode with loglevel=100, if the
> > vncserver is killed, an exception is thrown in the java viewer. The
> > viewer window also remains open. Not really a bug though but would be
> > nice if the viewer window would close on the Broken pipe event.
> >
> > Also, is there a way to make the client exit when the viewer window is
> > closed. It just keep listening for more connections. Maybe a "-quit"
> > option to tell it to shutdown when the viewer window is killed.
> >
> > main: Listening on port 5500
> > CConn: Accepted connection from 0:0:0:0:0:0:0:1::44063
> > CConnection: Server supports RFB protocol version 3.8
> > CConnection: Using RFB protocol version 3.8
> > CConn: Using pixel format depth 24 (32bpp) little-endian rgb888
> > CConn: Requesting Tight encoding
> > CConn: Enabling continuous updates
> > Exception in thread "AWT-EventQueue-0" com.turbovnc.rdr.ErrorException:
> > Write error: Broken pipe
> > at com.turbovnc.network.SocketDescriptor.write(SocketDescriptor.java:102)
> > at com.turbovnc.rdr.FdOutStream.writeWithTimeout(FdOutStream.java:111)
> > at com.turbovnc.rdr.FdOutStream.flush(FdOutStream.java:65)
> > at com.turbovnc.rfb.CMsgWriterV3.endMsg(CMsgWriterV3.java:41)
> > at com.turbovnc.rfb.CMsgWriter.writePointerEvent(CMsgWriter.java:169)
> > at com.turbovnc.vncviewer.CConn.writePointerEvent(CConn.java:1612)
> > at
> >
> com.turbovnc.vncviewer.DesktopWindow.mouseMotionCB(DesktopWindow.java:417)
> > at
> com.turbovnc.vncviewer.DesktopWindow.mouseMoved(DesktopWindow.java:436)
> > at java.awt.Component.processMouseMotionEvent(Unknown Source)
> > at javax.swing.JComponent.processMouseMotionEvent(Unknown Source)
> > at java.awt.Component.processEvent(Unknown Source)
> > at java.awt.Container.processEvent(Unknown Source)
> > at java.awt.Component.dispatchEventImpl(Unknown Source)
> > at java.awt.Container.dispatchEventImpl(Unknown Source)
> > at java.awt.Component.dispatchEvent(Unknown Source)
> > at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
> > at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
> > at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
> > at java.awt.Container.dispatchEventImpl(Unknown Source)
> > at java.awt.Window.dispatchEventImpl(Unknown Source)
> > at java.awt.Component.dispatchEvent(Unknown Source)
> > at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
> > at java.awt.EventQueue.access$000(Unknown Source)
> > at java.awt.EventQueue$3.run(Unknown Source)
> > at java.awt.EventQueue$3.run(Unknown Source)
> > at java.security.AccessController.doPrivileged(Native Method)
> > at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown
> Source)
> > at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown
> Source)
> > at java.awt.EventQueue$4.run(Unknown Source)
> > at java.awt.EventQueue$4.run(Unknown Source)
> > at java.security.AccessController.doPrivileged(Native Method)
> > at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown
> Source)
> > at java.awt.EventQueue.dispatchEvent(Unknown Source)
> > at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
> > at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
> > at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
> > at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> > at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> > at java.awt.EventDispatchThread.run(Unknown Source)
> >
> > --
> > Kevin Van Workum, PhD
> > Sabalcore Computing Inc.
> > "Where Data Becomes Discovery"
> > http://www.sabalcore.com
> > 877-492-8027 ext. 11
> >
> >
> >
> >
> ------------------------------------------------------------------------------
> > Learn Graph Databases - Download FREE O'Reilly Book
> > "Graph Databases" is the definitive new guide to graph databases and
> > their applications. This 200-page book is written by three acclaimed
> > leaders in the field. The early access version is available now.
> > Download your free book today! http://p.sf.net/sfu/neotech_d2d_may
> >
> >
> >
> > _______________________________________________
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> > https://lists.sourceforge.net/lists/listinfo/virtualgl-users
> >
>
>
> ------------------------------------------------------------------------------
> Learn Graph Databases - Download FREE O'Reilly Book
> "Graph Databases" is the definitive new guide to graph databases and
> their applications. This 200-page book is written by three acclaimed
> leaders in the field. The early access version is available now.
> Download your free book today! http://p.sf.net/sfu/neotech_d2d_may
> _______________________________________________
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>
--
Kevin Van Workum, PhD
Sabalcore Computing Inc.
"Where Data Becomes Discovery"
http://www.sabalcore.com
877-492-8027 ext. 11
--
------------------------------------------------------------------------------
Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and
their applications. This 200-page book is written by three acclaimed
leaders in the field. The early access version is available now.
Download your free book today! http://p.sf.net/sfu/neotech_d2d_may
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