import winsup-2000-02-17 snapshot
This commit is contained in:
Christopher Faylor
258
winsup/mingw/include/io.h
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258
winsup/mingw/include/io.h
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/*
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* io.h
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*
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* System level I/O functions and types.
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*
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* This file is part of the Mingw32 package.
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*
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* Contributors:
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* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Revision$
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* $Author$
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* $Date$
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*
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*/
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#ifndef __STRICT_ANSI__
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#ifndef _IO_H_
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#define _IO_H_
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/* All the headers include this file. */
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#include <_mingw.h>
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/* We need the definition of FILE anyway... */
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#include <stdio.h>
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/* MSVC's io.h contains the stuff from dir.h, so I will too.
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* NOTE: This also defines off_t, the file offset type, through
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* an inclusion of sys/types.h */
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#ifndef __STRICT_ANSI__
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#include <sys/types.h> /* To get time_t. */
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/*
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* Attributes of files as returned by _findfirst et al.
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*/
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#define _A_NORMAL 0x00000000
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#define _A_RDONLY 0x00000001
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#define _A_HIDDEN 0x00000002
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#define _A_SYSTEM 0x00000004
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#define _A_VOLID 0x00000008
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#define _A_SUBDIR 0x00000010
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#define _A_ARCH 0x00000020
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#ifndef RC_INVOKED
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#ifndef _FSIZE_T_DEFINED
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typedef unsigned long _fsize_t;
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#define _FSIZE_T_DEFINED
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#endif
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/*
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* The following structure is filled in by _findfirst or _findnext when
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* they succeed in finding a match.
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*/
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struct _finddata_t
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{
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unsigned attrib; /* Attributes, see constants above. */
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time_t time_create;
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time_t time_access; /* always midnight local time */
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time_t time_write;
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_fsize_t size;
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char name[FILENAME_MAX]; /* may include spaces. */
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};
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#ifndef _WFINDDATA_T_DEFINED
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struct _wfinddata_t {
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unsigned attrib;
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time_t time_create; /* -1 for FAT file systems */
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time_t time_access; /* -1 for FAT file systems */
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time_t time_write;
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_fsize_t size;
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wchar_t name[FILENAME_MAX]; /* may include spaces. */
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};
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#define _WFINDDATA_T_DEFINED
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Functions for searching for files. _findfirst returns -1 if no match
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* is found. Otherwise it returns a handle to be used in _findnext and
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* _findclose calls. _findnext also returns -1 if no match could be found,
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* and 0 if a match was found. Call _findclose when you are finished.
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*/
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int _findfirst (const char*, struct _finddata_t*);
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int _findnext (int, struct _finddata_t*);
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int _findclose (int);
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int _chdir (const char*);
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char* _getcwd (char*, int);
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int _mkdir (const char*);
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char* _mktemp (char*);
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int _rmdir (const char*);
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#ifndef _NO_OLDNAMES
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#ifndef _UWIN
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int chdir (const char*);
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char* getcwd (char*, int);
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int mkdir (const char*);
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char* mktemp (char*);
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int rmdir (const char*);
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#endif /* _UWIN */
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#endif /* Not _NO_OLDNAMES */
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#ifdef __cplusplus
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}
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#endif
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#endif /* Not RC_INVOKED */
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#endif /* Not __STRICT_ANSI__ */
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/* TODO: Maximum number of open handles has not been tested, I just set
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* it the same as FOPEN_MAX. */
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#define HANDLE_MAX FOPEN_MAX
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/* Some defines for _access nAccessMode (MS doesn't define them, but
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* it doesn't seem to hurt to add them). */
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#define F_OK 0 /* Check for file existence */
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#define X_OK 1 /* Check for execute permission. */
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#define W_OK 2 /* Check for write permission */
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#define R_OK 4 /* Check for read permission */
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#ifndef RC_INVOKED
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#ifdef __cplusplus
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extern "C" {
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#endif
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int _access (const char*, int);
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int _chsize (int, long);
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int _close (int);
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/* NOTE: The only significant bit in unPermissions appears to be bit 7 (0x80),
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* the "owner write permission" bit (on FAT). */
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int _creat (const char*, unsigned);
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int _dup (int);
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int _dup2 (int, int);
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long _filelength (int);
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int _fileno (FILE*);
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long _get_osfhandle (int);
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int _isatty (int);
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/* In a very odd turn of events this function is excluded from those
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* files which define _STREAM_COMPAT. This is required in order to
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* build GNU libio because of a conflict with _eof in streambuf.h
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* line 107. Actually I might just be able to change the name of
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* the enum member in streambuf.h... we'll see. TODO */
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#ifndef _STREAM_COMPAT
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int _eof (int);
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#endif
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/* LK_... locking commands defined in sys/locking.h. */
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int _locking (int, int, long);
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long _lseek (int, long, int);
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/* Optional third argument is unsigned unPermissions. */
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int _open (const char*, int, ...);
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int _open_osfhandle (long, int);
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int _pipe (int *, unsigned int, int);
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int _read (int, void*, unsigned int);
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/* SH_... flags for nShFlags defined in share.h
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* Optional fourth argument is unsigned unPermissions */
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int _sopen (const char*, int, int, ...);
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long _tell (int);
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/* Should umask be in sys/stat.h and/or sys/types.h instead? */
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int _umask (int);
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int _unlink (const char*);
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int _write (int, const void*, unsigned int);
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/* Wide character versions. Also declared in wchar.h. */
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int _waccess(const wchar_t *, int);
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int _wchmod(const wchar_t *, int);
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int _wcreat(const wchar_t *, int);
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long _wfindfirst(wchar_t *, struct _wfinddata_t *);
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int _wfindnext(long, struct _wfinddata_t *);
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int _wunlink(const wchar_t *);
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int _wrename(const wchar_t *, const wchar_t *);
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int _wopen(const wchar_t *, int, ...);
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int _wsopen(const wchar_t *, int, int, ...);
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wchar_t * _wmktemp(wchar_t *);
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#ifndef _NO_OLDNAMES
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/*
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* Non-underscored versions of non-ANSI functions to improve portability.
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* These functions live in libmoldname.a.
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*/
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#ifndef _UWIN
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int access (const char*, int);
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int chsize (int, long );
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int close (int);
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int creat (const char*, int);
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int dup (int);
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int dup2 (int, int);
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int eof (int);
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long filelength (int);
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int fileno (FILE*);
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int isatty (int);
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long lseek (int, long, int);
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int open (const char*, int, ...);
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int read (int, void*, unsigned int);
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int sopen (const char*, int, int, ...);
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long tell (int);
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int umask (int);
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int unlink (const char*);
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int write (int, const void*, unsigned int);
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#endif /* _UWIN */
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/* Wide character versions. Also declared in wchar.h. */
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int waccess(const wchar_t *, int);
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int wchmod(const wchar_t *, int);
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int wcreat(const wchar_t *, int);
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long wfindfirst(wchar_t *, struct _wfinddata_t *);
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int wfindnext(long, struct _wfinddata_t *);
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int wunlink(const wchar_t *);
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int wrename(const wchar_t *, const wchar_t *);
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int wopen(const wchar_t *, int, ...);
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int wsopen(const wchar_t *, int, int, ...);
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wchar_t * wmktemp(wchar_t *);
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#endif /* Not _NO_OLDNAMES */
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#ifdef __cplusplus
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}
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#endif
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#endif /* Not RC_INVOKED */
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#endif /* _IO_H_ not defined */
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#endif /* Not strict ANSI */
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