IMPLEMENTATION MODULE wrapclock;
(* Bound to m2wc* helpers in the shim (C struct timespec on the heap).
   Helper names avoid underscores (classic Modula-2 identifiers). *)

FROM SYSTEM IMPORT ADDRESS;

PROCEDURE m2wctimezone () : LONGINT;
  EXTERNAL;
PROCEDURE m2wcistimezone () : INTEGER;
  EXTERNAL;
PROCEDURE m2wcdaylight () : INTEGER;
  EXTERNAL;
PROCEDURE m2wcisdst () : INTEGER;
  EXTERNAL;
PROCEDURE m2wctzname (d : INTEGER) : ADDRESS;
  EXTERNAL;
PROCEDURE m2wctsnew () : ADDRESS;
  EXTERNAL;
PROCEDURE m2wctskill (ts : ADDRESS) : ADDRESS;
  EXTERNAL;
PROCEDURE m2wctsget (ts : ADDRESS; VAR sec, nano : LONGCARD) : INTEGER;
  EXTERNAL;
PROCEDURE m2wctsset (ts : ADDRESS; sec, nano : LONGCARD) : INTEGER;
  EXTERNAL;
PROCEDURE m2wctsrealtime (ts : ADDRESS) : INTEGER;
  EXTERNAL;
PROCEDURE m2wctssetrealtime (ts : ADDRESS) : INTEGER;
  EXTERNAL;

PROCEDURE timezone () : LONGINT;
BEGIN RETURN m2wctimezone() END timezone;
PROCEDURE istimezone () : INTEGER;
BEGIN RETURN m2wcistimezone() END istimezone;
PROCEDURE daylight () : INTEGER;
BEGIN RETURN m2wcdaylight() END daylight;
PROCEDURE isdst () : INTEGER;
BEGIN RETURN m2wcisdst() END isdst;
PROCEDURE tzname (daylight : INTEGER) : ADDRESS;
BEGIN RETURN m2wctzname(daylight) END tzname;

PROCEDURE InitTimespec () : timespec;
BEGIN RETURN m2wctsnew() END InitTimespec;
PROCEDURE KillTimespec (ts : timespec) : timespec;
BEGIN RETURN m2wctskill(ts) END KillTimespec;
PROCEDURE GetTimespec (ts : timespec; VAR sec, nano : LONGCARD) : INTEGER;
BEGIN RETURN m2wctsget(ts, sec, nano) END GetTimespec;
PROCEDURE SetTimespec (ts : timespec; sec, nano : LONGCARD) : INTEGER;
BEGIN RETURN m2wctsset(ts, sec, nano) END SetTimespec;
PROCEDURE GetTimeRealtime (ts : timespec) : INTEGER;
BEGIN RETURN m2wctsrealtime(ts) END GetTimeRealtime;
PROCEDURE SetTimeRealtime (ts : timespec) : INTEGER;
BEGIN RETURN m2wctssetrealtime(ts) END SetTimeRealtime;

END wrapclock.