/***
*io.h - declarations for low-level file handling and I/O functions
*
* Copyright (c) 1985-1993, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file contains the function declarations for the low-level
* file handling and I/O functions.
*
*Revision History:
* 10/20/87 JCR Removed "MSC40_ONLY" entries
* 11/09/87 JCR Multi-thread support
* 12-11-87 JCR Added "_loadds" functionality
* 12-17-87 JCR Added _MTHREAD_ONLY comments
* 12-18-87 JCR Added _FAR_ to declarations
* 02-10-88 JCR Cleaned up white space
* 08-19-88 GJF Modified to also work for the 386 (small model only)
* 05-03-89 JCR Added _INTERNAL_IFSTRIP for relinc usage
* 08-03-89 GJF Cleanup, now specific to OS/2 2.0 (i.e., 386 flat model)
* 08-14-89 GJF Added prototype for _pipe()
* 10-30-89 GJF Fixed copyright
* 11-02-89 JCR Changed "DLL" to "_DLL"
* 11-17-89 GJF read() should take "void *" not "char *", write()
* should take "const void *" not "char *". Also,
* added const to appropriate arg types for access(),
* chmod(), creat(), open() and sopen()
* 03-01-90 GJF Added #ifndef _INC_IO and #include <cruntime.h>
* stuff. Also, removed some (now) useless preprocessor
* directives.
* 03-21-90 GJF Replaced _cdecl with _CALLTYPE1 or _CALLTYPE2 in
* prototypes.
* 05-28-90 SBM Added _commit()
* 01-18-91 GJF ANSI naming.
* 02-25-91 SRW Exposed _get_osfhandle and _open_osfhandle [_WIN32_]
* 08-01-91 GJF No _pipe for Dosx32.
* 08-20-91 JCR C++ and ANSI naming
* 08-26-91 BWM Added _findfirst, etc.
* 09-16-91 BWM Changed find handle type to long.
* 09-28-91 JCR ANSI names: DOSX32=prototypes, WIN32=#defines for now
* 03-30-92 DJM POSIX support.
* 06-23-92 GJF // is non-ANSI comment delimiter.
* 08-06-92 GJF Function calling type and variable type macros.
* 08-25-92 GJF For POSIX build, #ifdef-ed out all but some internally
* used macros (and these are stripped out on release).
* 09-03-92 GJF Merge two changes above.
* 01-21-93 GJF Removed support for C6-386's _cdecl.
* 05-11-93 SKS Increased name buffer in finddata structure to 260 bytes.
*
****/
#ifndef _INC_IO
#ifndef _POSIX_
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _INTERNAL_IFSTRIP_
#include <cruntime.h>
#endif /* _INTERNAL_IFSTRIP_ */
/*
* Conditional macro definition for function calling type and variable type
* qualifiers.
*/
#if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) )
/*
* Definitions for MS C8-32 (386/486) compiler
*/
#define _CRTAPI1 __cdecl
#define _CRTAPI2 __cdecl
#else
/*
* Other compilers (e.g., MIPS)
*/
#define _CRTAPI1
#define _CRTAPI2
#endif
#ifndef _TIME_T_DEFINED
typedef long time_t; /* time value */
#define _TIME_T_DEFINED /* avoid multiple def's of time_t */
#endif
#ifndef _FSIZE_T_DEFINED
typedef unsigned long _fsize_t; /* Could be 64 bits for Win32 */
#define _FSIZE_T_DEFINED
#endif
#ifndef _FINDDATA_T_DEFINED
struct _finddata_t {
unsigned attrib;
time_t time_create; /* -1 for FAT file systems */
time_t time_access; /* -1 for FAT file systems */
time_t time_write;
_fsize_t size;
char name[260];
};
#define _FINDDATA_T_DEFINED
#endif
/* File attribute constants for _findfirst() */
#define _A_NORMAL 0x00 /* Normal file - No read/write restrictions */
#define _A_RDONLY 0x01 /* Read only file */
#define _A_HIDDEN 0x02 /* Hidden file */
#define _A_SYSTEM 0x04 /* System file */
#define _A_SUBDIR 0x10 /* Subdirectory */
#define _A_ARCH 0x20 /* Archive file */
/* function prototypes */
int _CRTAPI1 _access(const char *, int);
int _CRTAPI1 _chmod(const char *, int);
int _CRTAPI1 _chsize(int, long);
int _CRTAPI1 _close(int);
int _CRTAPI1 _commit(int);
int _CRTAPI1 _creat(const char *, int);
int _CRTAPI1 _dup(int);
int _CRTAPI1 _dup2(int, int);
int _CRTAPI1 _eof(int);
long _CRTAPI1 _filelength(int);
long _CRTAPI1 _findfirst(char *, struct _finddata_t *);
int _CRTAPI1 _findnext(long, struct _finddata_t *);
int _CRTAPI1 _findclose(long);
int _CRTAPI1 _isatty(int);
int _CRTAPI1 _locking(int, int, long);
long _CRTAPI1 _lseek(int, long, int);
char * _CRTAPI1 _mktemp(char *);
int _CRTAPI2 _open(const char *, int, ...);
#ifndef _DOSX32_
int _CRTAPI1 _pipe(int *, unsigned int, int);
#endif /* _DOSX32_ */
int _CRTAPI1 _read(int, void *, unsigned int);
int _CRTAPI1 remove(const char *);
int _CRTAPI1 rename(const char *, const char *);
int _CRTAPI1 _setmode(int, int);
int _CRTAPI2 _sopen(const char *, int, int, ...);
long _CRTAPI1 _tell(int);
int _CRTAPI1 _umask(int);
int _CRTAPI1 _unlink(const char *);
int _CRTAPI1 _write(int, const void *, unsigned int);
#ifdef MTHREAD /* _MTHREAD_ONLY */
int _CRTAPI1 _chsize_lk(int,long); /* _MTHREAD_ONLY */
int _CRTAPI1 _close_lk(int); /* _MTHREAD_ONLY */
long _CRTAPI1 _lseek_lk(int, long, int); /* _MTHREAD_ONLY */
int _CRTAPI1 _setmode_lk(int, int); /* _MTHREAD_ONLY */
int _CRTAPI1 _read_lk(int, void *, unsigned int); /* _MTHREAD_ONLY */
int _CRTAPI1 _write_lk(int, const void *, unsigned int); /* _MTHREAD_ONLY */
#else /* not MTHREAD */ /* _MTHREAD_ONLY */
#define _chsize_lk(fh,size) _chsize(fh,size) /* _MTHREAD_ONLY */
#define _close_lk(fh) _close(fh) /* _MTHREAD_ONLY */
#define _lseek_lk(fh,offset,origin) _lseek(fh,offset,origin) /* _MTHREAD_ONLY */
#define _setmode_lk(fh,mode) _setmode(fh,mode) /* _MTHREAD_ONLY */
#define _read_lk(fh,buff,count) _read(fh,buff,count) /* _MTHREAD_ONLY */
#define _write_lk(fh,buff,count) _write(fh,buff,count) /* _MTHREAD_ONLY */
#endif /* _MTHREAD_ONLY */
#ifdef _WIN32_
long _CRTAPI1 _get_osfhandle(int);
int _CRTAPI1 _open_osfhandle(long, int);
#endif /* _WIN32_ */
#if !(__STDC__ || defined(__cplusplus))
/* Non-ANSI names for compatibility */
#ifndef _DOSX32_
#define access _access
#define chmod _chmod
#define chsize _chsize
#define close _close
#define creat _creat
#define dup _dup
#define dup2 _dup2
#define eof _eof
#define filelength _filelength
#define isatty _isatty
#define locking _locking
#define lseek _lseek
#define mktemp _mktemp
#define open _open
#define read _read
#define setmode _setmode
#define sopen _sopen
#define tell _tell
#define umask _umask
#define unlink _unlink
#define write _write
#else
int _CRTAPI1 access(const char *, int);
int _CRTAPI1 chmod(const char *, int);
int _CRTAPI1 chsize(int, long);
int _CRTAPI1 close(int);
int _CRTAPI1 creat(const char *, int);
int _CRTAPI1 dup(int);
int _CRTAPI1 dup2(int, int);
int _CRTAPI1 eof(int);
long _CRTAPI1 filelength(int);
int _CRTAPI1 isatty(int);
int _CRTAPI1 locking(int, int, long);
long _CRTAPI1 lseek(int, long, int);
char * _CRTAPI1 mktemp(char *);
int _CRTAPI2 open(const char *, int, ...);
int _CRTAPI1 read(int, void *, unsigned int);
int _CRTAPI1 setmode(int, int);
int _CRTAPI2 sopen(const char *, int, int, ...);
long _CRTAPI1 tell(int);
int _CRTAPI1 umask(int);
int _CRTAPI1 unlink(const char *);
int _CRTAPI1 write(int, const void *, unsigned int);
#endif
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#else /* _MTHREAD_ONLY */
#define _close_lk(fh) close(fh) /* _MTHREAD_ONLY */
#define _lseek_lk(fh,offset,origin) lseek(fh,offset,origin) /* _MTHREAD_ONLY */
#define _read_lk(fh,buff,count) read(fh,buff,count) /* _MTHREAD_ONLY */
#define _write_lk(fh,buff,count) write(fh,buff,count) /* _MTHREAD_ONLY */
#endif /* _POSIX_ */
#define _INC_IO
#endif /* _INC_IO */
