Process (Communications)

CALL WORKER ( process ; formula {; param}{; param2 ; ... ; paramN} )
CLEAR SEMAPHORE ( semaphore )
GET PROCESS VARIABLE ( process ; srcVar ; dstVar {; srcVar2 ; dstVar2 ; ... ; srcVarN ; dstVarN} )
KILL WORKER {( process )}
New signal { ( description : Text ) } : 4D.Signal
Semaphore ( semaphore {; tickCount} ) : Boolean
SET PROCESS VARIABLE ( process ; dstVar ; expr {; dstVar2 ; expr2 ; ... ; dstVarN ; exprN} )
Test semaphore ( semaphore ) : Boolean
VARIABLE TO VARIABLE ( process ; dstVar ; srcVar {; dstVar2 ; srcVar2 ; ... ; dstVarN ; srcVarN} )