Process (Communications)

CALL WORKER ( process : Text, Integer ; formula : Object, Text {; ...param : Expression} )
CLEAR SEMAPHORE ( semaphore : Text )
GET PROCESS VARIABLE ( process : Integer ; srcVar : Variable ; dstVar : Variable {; ...(srcVar : Variable, dstVar : Variable)} )
KILL WORKER ({ process : Text, Integer })
New signal { ( description : Text ) } : 4D.Signal
Semaphore ( semaphore : Text {; tickCount : Integer} ) : Boolean
SET PROCESS VARIABLE ( process : Integer ; dstVar : Variable ; expr : Variable {; ...(dstVar : Variable, expr : Variable)} )
Test semaphore ( semaphore : Text ) : Boolean
VARIABLE TO VARIABLE ( process : Integer ; dstVar : Variable ; srcVar : Variable {; ...(dstVar : Variable, srcVar : Variable)} )