(* Release 3.10 *)
(*-------------------------------------------------------------------------*
*                                                                          *
*  COREIO.DEF - Modula-2 interface to COREIO.A                             *
*                                                                          *
*  COPYRIGHT (C) 1989..1992 Clarion Software Corporation.                  *
*  All Rights Reserved                                                     *
*                                                                          *
*--------------------------------------------------------------------------*)

DEFINITION MODULE CoreIO;

(*# save *)
(*# call(o_a_size=>off, o_a_copy=>off, c_conv=>on, result_optional=>on) *)
(*# module(implementation=>off, init_code=>off) *)
(*# name(prefix=>c) *)

CONST
  SEEK_SET = 0;
  SEEK_END = 2;

  O_RDONLY = {};
  O_WRONLY = {0};
  O_RDWR   = {1};

  O_CREAT  = {8};	(* create and open file *)
  O_TRUNC  = {9};	(* open with truncation *)
  O_EXCL   = {10};	(* exclusive open *)
  _O_EOF   = {9};       (* set when text file hits ^Z   *)
  O_APPEND = {11};	(* to end of file *)

(* File mode special bits. User may only read these bits *)

  O_CHANGED= {12};	(* File has been written *)
  O_DEVICE = {13};	(* user read only flag	 *)
  O_TEXT   = {14};	(* CR-LF translation	*)
  O_BINARY = {15};	(* no translation	*)

  _F_READ = {0};			(* Read only file *)
  _F_WRIT = {1};			(* Write only file *)
  _F_UBUF = {2};			(* User allocated buffer *)
  _F_APP  = {3};			(* Append data *)
  _F_ERR  = {4};			(* Error *)
  _F_EOF  = {5};			(* EOF *)
  _F_BIN  = {6};			(* Binary file *)
  _F_IN	  = {7};			(* Data is incoming *)
  _F_OUT  = {8};			(* Data is outgoing *)
  _F_DEV  = {9};			(* File is terminal *)
  _F_RST  = {10};			(* Newly opened stream *)
  _F_LBUF = {11};			(* line buffered stream *)
  _F_CTZ  = {12};
  _F_RDWR = {0..1};			(* Read/write  *)

  EZERO	   = 0;		(* No Error			*)
  EINVF    = 1;		(* Invalid function code	*)
  ENOENT   = 2;		(* File not found		*)
  ENOPATH  = 3;		(* Path not found		*)
  EMFILE   = 4;		(* Too many open files		*)
  EACCES   = 5;		(* Access denied		*)
  EBADF	   = 6;		(* Invalid handle		*)
  E2BIG	   = 7;		(* Memory blocks destroyed	*)
  ENOMEM   = 8;		(* Insufficient Memory		*)
  EINVMEM  = 9; 	(* Invalid memory block address *)
  EINVENV  = 10;	(* Invalid environment		*)
  EINVFMT  = 11;	(* Invalid format		*)
  EINVACC  = 12;	(* Invalid access code		*)
  EINVDAT  = 13;	(* Invalid data 		*)
  ENODEV   = 15;	(* Invalid drive		*)
  ECURDIR  = 16;	(* Attempt to remove CurDir	*)
  ENOTSAM  = 17;	(* Not same device		*)
  ENMFILE  = 18;	(* No more files		*)

(* RTL error codes *)

  EINVAL   = 19;	(* Invalid argument		*)
  ENOTDIR  = 20;	(* Not directory		*)
  EISDIR   = 21;	(* Is directory 		*)
  ENOEXEC  = 22;	(* Corrupted exec file		*)
  EMLINK   = 32;	(* Cross-device link		*)

  EDOM	   = 33;	(* Math argument		*)
  ERANGE   = 34;	(* Result too large		*)
  EDEADLOCK= 36;	(* file locking deadlock	*)
  EEXIST   = 80;        (* File exists MSDOS 3.0 +      *)
  EDISKFUL = 0F0H;      (* Write error - disk full?     *)

  EFAULT   = -1;	(* Unknown error		*)

PROCEDURE getcurdir(Drive: INTEGER; Path: ARRAY OF CHAR): INTEGER;
PROCEDURE isatty(Handle: INTEGER): INTEGER;
PROCEDURE _creat(Path: ARRAY OF CHAR; Permission: INTEGER): INTEGER;
PROCEDURE _creat_trunc(Path: ARRAY OF CHAR; Permission: INTEGER): INTEGER;
PROCEDURE chdir(Path: ARRAY OF CHAR): INTEGER;
PROCEDURE delay(MS: INTEGER);
PROCEDURE findnext(Buffer: ARRAY OF BYTE): INTEGER;
PROCEDURE lseek(Handle: INTEGER; Pos: LONGINT; Whence: CARDINAL): LONGINT;
PROCEDURE mkdir(Path: ARRAY OF CHAR): INTEGER;
PROCEDURE read(Handle: INTEGER; Buf: ADDRESS; Count: INTEGER): INTEGER;
PROCEDURE rename(Old, New: ARRAY OF CHAR): INTEGER;
PROCEDURE rmdir(Path: ARRAY OF CHAR): INTEGER;
PROCEDURE tell(Handle: INTEGER): LONGINT;
PROCEDURE unlink(Path: ARRAY OF CHAR): INTEGER;
PROCEDURE write(Handle: INTEGER; Buf: ADDRESS; Count: INTEGER): INTEGER;
PROCEDURE _close(Handle: INTEGER): INTEGER;
PROCEDURE _dos_close(Handle: INTEGER): CARDINAL;
PROCEDURE _dos_findfirst(Path: ARRAY OF BYTE; Attr: CARDINAL; Buffer: ARRAY OF BYTE): INTEGER;
PROCEDURE _dos_findnext(Buffer: ARRAY OF BYTE): INTEGER;
PROCEDURE _dos_read(Handle: INTEGER; Buffer: FarADDRESS; Count: CARDINAL; VAR NumRead: CARDINAL): CARDINAL;
PROCEDURE _dos_write(Handle: INTEGER; Buffer: FarADDRESS; Count: CARDINAL; VAR NumWrit: CARDINAL): CARDINAL;
PROCEDURE _eof(Handle: INTEGER): INTEGER;
PROCEDURE _open(Path: ARRAY OF CHAR; Mode: INTEGER): INTEGER;
PROCEDURE _read(Handle: INTEGER; Buf: ADDRESS; Count: INTEGER): INTEGER;
PROCEDURE _write(Handle: INTEGER; Buf: ADDRESS; Count: INTEGER): INTEGER;
PROCEDURE _os2_open(Path: ARRAY OF CHAR; Access: CARDINAL; mode: CARDINAL; flag: CARDINAL): INTEGER;

(*# save *)
(*# call(reg_param=>(dx,ax), reg_saved=>(ds, di, si,st1,st2)) *)
PROCEDURE _exists(Path: ARRAY OF CHAR): INTEGER;
(*# restore *)

(*# save *)
(*# call(reg_param=>(ax,bx,cx,dx)) *)
PROCEDURE _pascreate(Path: ARRAY OF CHAR): INTEGER;
PROCEDURE _pasopen(Path: ARRAY OF CHAR; Mode: INTEGER): INTEGER;
(*# restore *)

VAR
  _doserrno: INTEGER;
  _fmode: CARDINAL;
  _fmask: CARDINAL;

END CoreIO.