IMPLEMENTATION MODULE M2makeOS;
(* V3 (self-hosted M2) implementation: binds the descriptor (_d) half
   of m2make_os.c plus the shared m2osBye/m2osClose via EXTERNAL.
   Compiled only by the V3 M2 driver (staged as M2makeOS.mod). *)
FROM SYSTEM IMPORT ADDRESS;

PROCEDURE m2osExistD(VAR s: ARRAY OF CHAR): BOOLEAN;
  EXTERNAL;
PROCEDURE m2osMtimeD(VAR s: ARRAY OF CHAR; VAR t: LONGINT): BOOLEAN;
  EXTERNAL;
PROCEDURE m2osSystemD(VAR s: ARRAY OF CHAR): INTEGER;
  EXTERNAL;
PROCEDURE m2osBye(code: INTEGER);
  EXTERNAL;
PROCEDURE m2osOpenreadD(VAR s: ARRAY OF CHAR): ADDRESS;
  EXTERNAL;
PROCEDURE m2osArgcD () : CARDINAL;
  EXTERNAL;
PROCEDURE m2osArgD(i: CARDINAL; VAR s: ARRAY OF CHAR;
                     cap: CARDINAL): BOOLEAN;
  EXTERNAL;
PROCEDURE m2osReadlineD(h: ADDRESS; VAR buf: ARRAY OF CHAR;
                          cap: CARDINAL): BOOLEAN;
  EXTERNAL;
PROCEDURE m2osClose(h: ADDRESS);
  EXTERNAL;

PROCEDURE FileExists(VAR name: ARRAY OF CHAR): BOOLEAN;
BEGIN
  RETURN m2osExistD(name)
END FileExists;

PROCEDURE FileMTime(VAR name: ARRAY OF CHAR; VAR t: LONGINT): BOOLEAN;
BEGIN
  RETURN m2osMtimeD(name, t)
END FileMTime;

PROCEDURE ExecCmd(VAR cmd: ARRAY OF CHAR): INTEGER;
BEGIN
  RETURN m2osSystemD(cmd)
END ExecCmd;

PROCEDURE ExitNow(code: INTEGER);
BEGIN
  m2osBye(code)
END ExitNow;

PROCEDURE OpenRead(VAR name: ARRAY OF CHAR): RdFile;
BEGIN
  RETURN m2osOpenreadD(name)
END OpenRead;

PROCEDURE ArgCount () : CARDINAL;
BEGIN
  RETURN m2osArgcD()
END ArgCount;

PROCEDURE GetArg(i: CARDINAL; VAR s: ARRAY OF CHAR;
                 cap: CARDINAL): BOOLEAN;
BEGIN
  RETURN m2osArgD(i, s, cap)
END GetArg;

PROCEDURE ReadLine(h: RdFile; VAR buf: ARRAY OF CHAR;
                   cap: CARDINAL): BOOLEAN;
BEGIN
  RETURN m2osReadlineD(h, buf, cap)
END ReadLine;

PROCEDURE CloseRead(h: RdFile);
BEGIN
  m2osClose(h)
END CloseRead;

END M2makeOS.