Hi David,
Under Solaris, you can see which two threads deadlock using
kill -3 pid
Then select the to display the deadlock thread from the text menu.
If the both deadlock threads come from Java3D, please send us
a test program and we'll take a look at it.
Thanks.
- Kelvin
-------------
Java 3D Team
Sun Microsystems Inc.
>Date: Sun, 23 Apr 2000 18:51:54 -0400
>From: David Charles Hirschfield <[EMAIL PROTECTED]>
>Subject: [JAVA3D] HELP: Thread Synchronization
>To: [EMAIL PROTECTED]
>
>I haven't been able to find much in the way of documentation on this
>subject, so any help will be greatly appreciated.
>
>I have a physics simulation running which simulates the gravitational
>interaction of a bunch of masses in 3d space. That simulation code is
>entirely mathematical and runs in its own thread, producing a set of 3d
>positions every time it runs.
>
>Those 3d positions are then used to set the positions of some objects in
>a java3d scene. Basically I take the x,y,z position that the math thread
>calculated and shove it into the transform of the java3d object.
>
>Everything works OK for a little while, but then the java3d thread comes
>to a screeching halt, while the simulation thread continues to run.
>
>Is this a thread locking issue? Is it not good to modify the transforms
>of java3d objects without some sophisticated thread synching? If I don't
>run the simulation thread, the java3d thread will run without problems,
>so I know it is the interaction between the two that is the problem.
>
>Has anyone had a similar problem?
>Please help, I've been banging my head against this one for a while, but
>I have had no luck.
>
>Pointers to documentation or examples would be great.
>-David
>
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