gm2-libs-iso/RTco

DEFINITION MODULE RTco ;

FROM SYSTEM IMPORT ADDRESS ;

(* init initializes the module and allows the application to lazily invoke threads.  *)

init
PROCEDURE init () : INTEGER ;

initThread
PROCEDURE initThread (p: PROC; stackSize: CARDINAL; interruptLevel: CARDINAL) : INTEGER ;

initSemaphore
PROCEDURE initSemaphore (value: CARDINAL) : INTEGER ;

wait
PROCEDURE wait (semaphore: INTEGER) ;

signal
PROCEDURE signal (semaphore: INTEGER) ;

transfer
PROCEDURE transfer (VAR p1: INTEGER; p2: INTEGER) ;

waitThread
PROCEDURE waitThread (tid: INTEGER) ;

signalThread
PROCEDURE signalThread (tid: INTEGER) ;

currentThread
PROCEDURE currentThread () : INTEGER ;

(* currentInterruptLevel returns the interrupt level of the current thread.  *)

currentInterruptLevel
PROCEDURE currentInterruptLevel () : CARDINAL ;

(* turninterrupts returns the old interrupt level and assigns the interrupt level
   to newLevel.  *)

turnInterrupts
PROCEDURE turnInterrupts (newLevel: CARDINAL) : CARDINAL ;

(*
   select access to the select system call which will be thread safe.
   This is typically called from the idle process to wait for an interrupt.
*)

select
PROCEDURE select (p1: INTEGER;
                  p2: ADDRESS;
                  p3: ADDRESS;
                  p4: ADDRESS;
                  p5: ADDRESS) : INTEGER ;

END RTco.