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DOS.H
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C/C++ Source or Header
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1996-11-06
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8KB
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219 lines
/*
* dos.h Defines the structs and unions used to handle the input and
* output registers for the DOS and 386 DOS Extender interface
* routines.
*
* Copyright by WATCOM International Corp. 1988-1996. All rights reserved.
*/
#ifndef _DOS_H_INCLUDED
#define _DOS_H_INCLUDED
#if !defined(_ENABLE_AUTODEPEND)
#pragma read_only_file;
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _COMDEF_H_INCLUDED
#include <_comdef.h>
#endif
#if defined(_M_IX86) && !defined(_I86_H_INCLUDED)
#include <i86.h>
#endif
#if defined(__DOS__) && defined(__386__)
#define _DOSFAR _WCFAR
#else
#define _DOSFAR _WCI86FAR
#endif
#if defined(_M_IX86)
#pragma pack(__push,1);
#else
#pragma pack(__push,8);
#endif
#ifndef _WCHAR_T_DEFINED
#define _WCHAR_T_DEFINED
#define _WCHAR_T_DEFINED_
#ifdef __cplusplus
typedef long char wchar_t;
#else
typedef unsigned short wchar_t;
#endif
#endif
/* dosexterror struct */
struct _DOSERROR {
int exterror;
char errclass;
char action;
char locus;
};
#ifndef __cplusplus
struct DOSERROR {
int exterror;
char class;
char action;
char locus;
};
#endif
struct dosdate_t {
unsigned char day; /* 1-31 */
unsigned char month; /* 1-12 */
unsigned short year; /* 1980-2099 */
unsigned char dayofweek;/* 0-6 (0=Sunday) */
};
#define _dosdate_t dosdate_t
struct dostime_t {
unsigned char hour; /* 0-23 */
unsigned char minute; /* 0-59 */
unsigned char second; /* 0-59 */
unsigned char hsecond; /* 1/100 second; 0-99 */
};
#define _dostime_t dostime_t
struct find_t {
char reserved[21]; /* reserved for use by DOS */
char attrib; /* attribute byte for file */
unsigned short wr_time; /* time of last write to file */
unsigned short wr_date; /* date of last write to file */
unsigned long size; /* length of file in bytes */
#if defined(__OS2__) || defined(__NT__)
char name[256]; /* null-terminated filename */
#else
char name[13]; /* null-terminated filename */
#endif
};
struct _wfind_t {
char reserved[21]; /* reserved for use by DOS */
char attrib; /* attribute byte for file */
unsigned short wr_time; /* time of last write to file */
unsigned short wr_date; /* date of last write to file */
unsigned long size; /* length of file in bytes */
#if defined(__OS2__) || defined(__NT__)
wchar_t name[256]; /* null-terminated filename */
#else
wchar_t name[13]; /* null-terminated filename */
#endif
};
#define _find_t find_t
/* Critical error handler equates for _hardresume result parameter */
#define _HARDERR_IGNORE 0 /* Ignore the error */
#define _HARDERR_RETRY 1 /* Retry the operation */
#define _HARDERR_ABORT 2 /* Abort the program */
#define _HARDERR_FAIL 3 /* Fail the system call in progress */
/* File attribute constants for attribute field */
#define _A_NORMAL 0x00 /* Normal file - read/write permitted */
#define _A_RDONLY 0x01 /* Read-only file */
#define _A_HIDDEN 0x02 /* Hidden file */
#define _A_SYSTEM 0x04 /* System file */
#define _A_VOLID 0x08 /* Volume-ID entry */
#define _A_SUBDIR 0x10 /* Subdirectory */
#define _A_ARCH 0x20 /* Archive file */
#ifndef _DISKFREE_T_DEFINED
#define _DISKFREE_T_DEFINED
#define _DISKFREE_T_DEFINED_
struct _diskfree_t {
unsigned total_clusters;
unsigned avail_clusters;
unsigned sectors_per_cluster;
unsigned bytes_per_sector;
};
#define diskfree_t _diskfree_t
#endif
_WCRTLINK extern int bdos( int __dosfn, unsigned int __dx,
unsigned int __al);
_WCRTLINK extern void _chain_intr( register void
(_WCINTERRUPT _DOSFAR *__handler)() );
#if defined(__NT__) || ( defined(__OS2__) && (defined(__386__)||defined(__PPC__)) )
_WCRTLINK extern unsigned _dos_allocmem( unsigned __size, void **__storage );
#else
_WCRTLINK extern unsigned _dos_allocmem( unsigned __size,
unsigned short *__seg );
#endif
_WCRTLINK extern unsigned _dos_close( int __handle );
_WCRTLINK extern unsigned _dos_commit( int __handle );
_WCRTLINK extern unsigned _dos_creat( const char *__path,
unsigned __attr, int *__handle );
_WCRTLINK extern unsigned _dos_creatnew( const char *__path,
unsigned __attr, int *__handle );
_WCRTLINK extern unsigned _dos_findfirst( const char *__path,
unsigned __attr,
struct find_t *__buf );
_WCRTLINK extern unsigned _dos_findnext( struct find_t *__buf );
_WCRTLINK extern unsigned _dos_findclose( struct find_t *__buf );
#if defined(__NT__) || ( defined(__OS2__) && (defined(__386__)||defined(__PPC__)) )
_WCRTLINK extern unsigned _dos_freemem( void *__storage );
#else
_WCRTLINK extern unsigned _dos_freemem( unsigned short __seg );
#endif
_WCRTLINK extern void _dos_getdate( struct dosdate_t *__date );
_WCRTLINK extern unsigned _dos_getdiskfree( unsigned __drive,
struct _diskfree_t *__diskspace );
_WCRTLINK extern unsigned _getdiskfree( unsigned __drive,
struct _diskfree_t *__diskspace );
_WCRTLINK extern void _dos_getdrive( unsigned *__drive );
_WCRTLINK extern unsigned _getdrive( void );
_WCRTLINK extern unsigned _dos_getfileattr( const char *__path,
unsigned *__attr );
_WCRTLINK extern unsigned _dos_getftime( int __handle, unsigned short *__date,
unsigned short *__time );
_WCRTLINK extern void _dos_gettime( struct dostime_t *__time );
_WCRTLINK extern void (_WCINTERRUPT _DOSFAR *_dos_getvect( int __intnum ))();
_WCRTLINK extern void _dos_keep( unsigned __retcode, unsigned __memsize );
_WCRTLINK extern unsigned _dos_open( const char *__path, unsigned __mode,
int *__handle );
_WCRTLINK extern unsigned _dos_read( int __handle, void _DOSFAR *__buf,
unsigned __count, unsigned *__bytes );
_WCRTLINK extern unsigned _dos_setblock( unsigned __size, unsigned short __seg,
unsigned *__maxsize );
_WCRTLINK extern unsigned _dos_setdate( struct dosdate_t *__date );
_WCRTLINK extern void _dos_setdrive( unsigned __drivenum,
unsigned *__drives );
_WCRTLINK extern unsigned _dos_setfileattr( const char *__path,
unsigned __attr );
_WCRTLINK extern unsigned _dos_setftime( int __handle, unsigned short __date,
unsigned short __time );
_WCRTLINK extern unsigned _dos_settime( struct dostime_t *__time );
_WCRTLINK extern void _dos_setvect( int __intnum, void
(_WCINTERRUPT _DOSFAR *__handler)() );
_WCRTLINK extern unsigned _dos_write( int __handle, void const _DOSFAR *__buf,
unsigned __count, unsigned *__bytes );
_WCRTLINK extern int dosexterr( struct _DOSERROR * );
_WCRTLINK extern void _harderr( register int (_DOSFAR *__func)(
unsigned __deverr, unsigned __errcode,
unsigned _DOSFAR *__devhdr));
_WCRTLINK extern void _hardresume( int __result );
_WCRTLINK extern void _hardretn( int __error );
#if defined(_M_IX86)
_WCRTLINK extern int intdos( union REGS *, union REGS * );
_WCRTLINK extern int intdosx( union REGS *, union REGS *, struct SREGS * );
#endif
_WCRTLINK extern void sleep( unsigned __seconds );
_WCRTLINK extern unsigned _wdos_findfirst( const wchar_t *__path,
unsigned __attr,
struct _wfind_t *__buf );
_WCRTLINK extern unsigned _wdos_findnext( struct _wfind_t *__buf );
_WCRTLINK extern unsigned _wdos_findclose( struct _wfind_t *__buf );
#pragma pack(__pop);
#undef _DOSFAR
#ifdef __cplusplus
};
#endif
#endif