/*** EXTERNAL DECLARATIONS FOR THE PMM ***/

DECLARE
   Message$exchange  LITERALLY  'STRUCTURE (
     message$head  POINTER,
     message$tail  POINTER,
     task$head     POINTER,
     task$tail     POINTER,
     exchange$link POINTER)',

   RQFSAX   Message$exchange    EXTERNAL,  /* Free$space$pool (UC)Get$msg */
   RQFSRX   Message$exchange    EXTERNAL,  /* Free$Space$pool reclaimation */
   RQFLMX   Message$exchange    EXTERNAL;  /* (UC)Get$msg requests */