[sc-dev] Interpreter Locks

[Ryan Brown <ryan@xxxxxxxxx>]

I've run into a pretty serious problem and I'm wondering if anyone  
has a solution. Essentially I want to call Supercollider using  
runInterpreter() even though gLangMutex is locked. This comes up in  
my bridge (see my previous post if you don't what I'm talking about)  
when an Objective-C method is called from Supercollider which then  
tries to send a message to an Objective-C subclass in Supercollider.  
Here is what happens:

1- Some code which calls Objective-C is executed in the interpreter  
(i.e. window.display where window is an NSWindow). [MyDocument  
executeSelection:] is called which calls interpretPrintCmdLine in SC.  
To call interpretPrintCmdLine a lock is taken out.
2- Eventually the Objective-C method is called which then sends a  
message to a proxy object representing a Supercollider class.
3- The proxy object receives the message and tries to forward it  
along to SC, but gLangMutex is locked so it deadlocks.

Is it possible to create a copy of the current state of the VM  
(stack, thread contexts, etc.), call runInterpreter() and then  
restore the VM to the saved state?

Ryan