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/*
* io.h
* This file has no copyright assigned and is placed in the Public Domain.
* This file is a part of the mingw-runtime package.
* No warranty is given; refer to the file DISCLAIMER within the package.
*
* System level I/O functions and types.
*
*/
#ifndef _IO_H_
#define _IO_H_
/* All the headers include this file. */
#include <_mingw.h>
/* MSVC's io.h contains the stuff from dir.h, so I will too.
* NOTE: This also defines off_t, the file offset type, through
* an inclusion of sys/types.h */
#include <sys/types.h> /* To get time_t. */
/*
* Attributes of files as returned by _findfirst et al.
*/
#define _A_NORMAL 0x00000000
#define _A_RDONLY 0x00000001
#define _A_HIDDEN 0x00000002
#define _A_SYSTEM 0x00000004
#define _A_VOLID 0x00000008
#define _A_SUBDIR 0x00000010
#define _A_ARCH 0x00000020
#ifndef RC_INVOKED
#ifndef _INTPTR_T_DEFINED
#define _INTPTR_T_DEFINED
#ifdef _WIN64
typedef __int64 intptr_t;
#else
typedef int intptr_t;
#endif
#endif
#ifndef _FSIZE_T_DEFINED
typedef unsigned long _fsize_t;
#define _FSIZE_T_DEFINED
#endif
/*
* The maximum length of a file name. You should use GetVolumeInformation
* instead of this constant. But hey, this works.
* Also defined in stdio.h.
*/
#ifndef FILENAME_MAX
#define FILENAME_MAX (260)
#endif
/*
* The following structure is filled in by _findfirst or _findnext when
* they succeed in finding a match.
*/
struct _finddata_t
{
unsigned attrib; /* Attributes, see constants above. */
time_t time_create;
time_t time_access; /* always midnight local time */
time_t time_write;
_fsize_t size;
char name[FILENAME_MAX]; /* may include spaces. */
};
struct _finddatai64_t {
unsigned attrib;
time_t time_create;
time_t time_access;
time_t time_write;
__int64 size;
char name[FILENAME_MAX];
};
#if __MSVCRT_VERSION__ >= 0x0601
struct __finddata64_t {
unsigned attrib;
__time64_t time_create;
__time64_t time_access;
__time64_t time_write;
/* 8 bytes are returned so it can't be _fsize_t */
__int64 size;
char name[FILENAME_MAX];
};
#endif
#ifndef _WFINDDATA_T_DEFINED
struct _wfinddata_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;
wchar_t name[FILENAME_MAX]; /* may include spaces. */
};
struct _wfinddatai64_t {
unsigned attrib;
time_t time_create;
time_t time_access;
time_t time_write;
__int64 size;
wchar_t name[FILENAME_MAX];
};
#if __MSVCRT_VERSION__ >= 0x0601
struct __wfinddata64_t {
unsigned attrib;
__time64_t time_create;
__time64_t time_access;
__time64_t time_write;
/* 8 bytes are returned so it can't be _fsize_t */
__int64 size;
wchar_t name[FILENAME_MAX];
};
#endif
#define _WFINDDATA_T_DEFINED
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*
* Functions for searching for files. _findfirst returns -1 if no match
* is found. Otherwise it returns a handle to be used in _findnext and
* _findclose calls. _findnext also returns -1 if no match could be found,
* and 0 if a match was found. Call _findclose when you are finished.
*/
/* FIXME: Should these all use intptr_t, as per recent MSDN docs? */
_CRTIMP long __cdecl __MINGW_NOTHROW _findfirst (const char*, struct _finddata_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _findnext (long, struct _finddata_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _findclose (long);
_CRTIMP int __cdecl __MINGW_NOTHROW _chdir (const char*);
_CRTIMP char* __cdecl __MINGW_NOTHROW _getcwd (char*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW _mkdir (const char*);
_CRTIMP char* __cdecl __MINGW_NOTHROW _mktemp (char*);
_CRTIMP int __cdecl __MINGW_NOTHROW _rmdir (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW _chmod (const char*, int);
#ifdef __MSVCRT__
_CRTIMP __int64 __cdecl __MINGW_NOTHROW _filelengthi64(int);
_CRTIMP long __cdecl __MINGW_NOTHROW _findfirsti64(const char*, struct _finddatai64_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _findnexti64(long, struct _finddatai64_t*);
_CRTIMP __int64 __cdecl __MINGW_NOTHROW _lseeki64(int, __int64, int);
_CRTIMP __int64 __cdecl __MINGW_NOTHROW _telli64(int);
/* These require newer versions of msvcrt.dll (6.1 or higher). */
#if __MSVCRT_VERSION__ >= 0x0601
_CRTIMP intptr_t __cdecl __MINGW_NOTHROW _findfirst64(const char*, struct __finddata64_t*);
_CRTIMP intptr_t __cdecl __MINGW_NOTHROW _findnext64(intptr_t, struct __finddata64_t*);
#endif /* __MSVCRT_VERSION__ >= 0x0601 */
#ifndef __NO_MINGW_LFS
__CRT_INLINE off64_t lseek64 (int, off64_t, int);
__CRT_INLINE off64_t lseek64 (int fd, off64_t offset, int whence)
{
return _lseeki64(fd, (__int64) offset, whence);
}
#endif
#endif /* __MSVCRT__ */
#ifndef _NO_OLDNAMES
#ifndef _UWIN
_CRTIMP int __cdecl __MINGW_NOTHROW chdir (const char*);
_CRTIMP char* __cdecl __MINGW_NOTHROW getcwd (char*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW mkdir (const char*);
_CRTIMP char* __cdecl __MINGW_NOTHROW mktemp (char*);
_CRTIMP int __cdecl __MINGW_NOTHROW rmdir (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW chmod (const char*, int);
#endif /* _UWIN */
#endif /* Not _NO_OLDNAMES */
#ifdef __cplusplus
}
#endif
#endif /* Not RC_INVOKED */
/* TODO: Maximum number of open handles has not been tested, I just set
* it the same as FOPEN_MAX. */
#define HANDLE_MAX FOPEN_MAX
/* Some defines for _access nAccessMode (MS doesn't define them, but
* it doesn't seem to hurt to add them). */
#define F_OK 0 /* Check for file existence */
/* Well maybe it does hurt. On newer versions of MSVCRT, an access mode
of 1 causes invalid parameter error. */
#define X_OK 1 /* MS access() doesn't check for execute permission. */
#define W_OK 2 /* Check for write permission */
#define R_OK 4 /* Check for read permission */
#ifndef RC_INVOKED
#ifdef __cplusplus
extern "C" {
#endif
_CRTIMP int __cdecl __MINGW_NOTHROW _access (const char*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW _chsize (int, long);
_CRTIMP int __cdecl __MINGW_NOTHROW _close (int);
_CRTIMP int __cdecl __MINGW_NOTHROW _commit(int);
/* NOTE: The only significant bit in unPermissions appears to be bit 7 (0x80),
* the "owner write permission" bit (on FAT). */
_CRTIMP int __cdecl __MINGW_NOTHROW _creat (const char*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW _dup (int);
_CRTIMP int __cdecl __MINGW_NOTHROW _dup2 (int, int);
_CRTIMP long __cdecl __MINGW_NOTHROW _filelength (int);
_CRTIMP long __cdecl __MINGW_NOTHROW _get_osfhandle (int);
_CRTIMP int __cdecl __MINGW_NOTHROW _isatty (int);
/* In a very odd turn of events this function is excluded from those
* files which define _STREAM_COMPAT. This is required in order to
* build GNU libio because of a conflict with _eof in streambuf.h
* line 107. Actually I might just be able to change the name of
* the enum member in streambuf.h... we'll see. TODO */
#ifndef _STREAM_COMPAT
_CRTIMP int __cdecl __MINGW_NOTHROW _eof (int);
#endif
/* LK_... locking commands defined in sys/locking.h. */
_CRTIMP int __cdecl __MINGW_NOTHROW _locking (int, int, long);
_CRTIMP long __cdecl __MINGW_NOTHROW _lseek (int, long, int);
/* Optional third argument is unsigned unPermissions. */
_CRTIMP int __cdecl __MINGW_NOTHROW _open (const char*, int, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW _open_osfhandle (intptr_t, int);
_CRTIMP int __cdecl __MINGW_NOTHROW _pipe (int *, unsigned int, int);
_CRTIMP int __cdecl __MINGW_NOTHROW _read (int, void*, unsigned int);
_CRTIMP int __cdecl __MINGW_NOTHROW _setmode (int, int);
/* MS puts remove & rename (but not wide versions) in io.h as well
as in stdio.h. */
_CRTIMP int __cdecl __MINGW_NOTHROW remove (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW rename (const char*, const char*);
/* SH_... flags for nShFlags defined in share.h
* Optional fourth argument is unsigned unPermissions */
_CRTIMP int __cdecl __MINGW_NOTHROW _sopen (const char*, int, int, ...);
_CRTIMP long __cdecl __MINGW_NOTHROW _tell (int);
/* Should umask be in sys/stat.h and/or sys/types.h instead? */
_CRTIMP int __cdecl __MINGW_NOTHROW _umask (int);
_CRTIMP int __cdecl __MINGW_NOTHROW _unlink (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW _write (int, const void*, unsigned int);
/* Wide character versions. Also declared in wchar.h. */
/* Not in crtdll.dll */
#if !defined (_WIO_DEFINED)
#if defined (__MSVCRT__)
_CRTIMP int __cdecl __MINGW_NOTHROW _waccess(const wchar_t*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW _wchmod(const wchar_t*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW _wcreat(const wchar_t*, int);
_CRTIMP long __cdecl __MINGW_NOTHROW _wfindfirst(const wchar_t*, struct _wfinddata_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _wfindnext(long, struct _wfinddata_t *);
_CRTIMP int __cdecl __MINGW_NOTHROW _wunlink(const wchar_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _wopen(const wchar_t*, int, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW _wsopen(const wchar_t*, int, int, ...);
_CRTIMP wchar_t * __cdecl __MINGW_NOTHROW _wmktemp(wchar_t*);
_CRTIMP long __cdecl __MINGW_NOTHROW _wfindfirsti64(const wchar_t*, struct _wfinddatai64_t*);
_CRTIMP int __cdecl __MINGW_NOTHROW _wfindnexti64(long, struct _wfinddatai64_t*);
#if __MSVCRT_VERSION__ >= 0x0601
_CRTIMP intptr_t __cdecl __MINGW_NOTHROW _wfindfirst64(const wchar_t*, struct __wfinddata64_t*);
_CRTIMP intptr_t __cdecl __MINGW_NOTHROW _wfindnext64(intptr_t, struct __wfinddata64_t*);
#endif
#endif /* defined (__MSVCRT__) */
#define _WIO_DEFINED
#endif /* _WIO_DEFINED */
#ifndef _NO_OLDNAMES
/*
* Non-underscored versions of non-ANSI functions to improve portability.
* These functions live in libmoldname.a.
*/
#ifndef _UWIN
_CRTIMP int __cdecl __MINGW_NOTHROW access (const char*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW chsize (int, long );
_CRTIMP int __cdecl __MINGW_NOTHROW close (int);
_CRTIMP int __cdecl __MINGW_NOTHROW creat (const char*, int);
_CRTIMP int __cdecl __MINGW_NOTHROW dup (int);
_CRTIMP int __cdecl __MINGW_NOTHROW dup2 (int, int);
_CRTIMP int __cdecl __MINGW_NOTHROW eof (int);
_CRTIMP long __cdecl __MINGW_NOTHROW filelength (int);
_CRTIMP int __cdecl __MINGW_NOTHROW isatty (int);
_CRTIMP long __cdecl __MINGW_NOTHROW lseek (int, long, int);
_CRTIMP int __cdecl __MINGW_NOTHROW open (const char*, int, ...);
_CRTIMP int __cdecl __MINGW_NOTHROW read (int, void*, unsigned int);
_CRTIMP int __cdecl __MINGW_NOTHROW setmode (int, int);
_CRTIMP int __cdecl __MINGW_NOTHROW sopen (const char*, int, int, ...);
_CRTIMP long __cdecl __MINGW_NOTHROW tell (int);
_CRTIMP int __cdecl __MINGW_NOTHROW umask (int);
_CRTIMP int __cdecl __MINGW_NOTHROW unlink (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW write (int, const void*, unsigned int);
#endif /* _UWIN */
#ifdef __USE_MINGW_ACCESS
/* Old versions of MSVCRT access() just ignored X_OK, while the version
shipped with Vista, returns an error code. This will restore the
old behaviour */
static inline int __mingw_access (const char* __fname, int __mode)
{ return _access (__fname, __mode & ~X_OK); }
#define access(__f,__m) __mingw_access (__f, __m)
#endif
/* Wide character versions. Also declared in wchar.h. */
/* Where do these live? Not in libmoldname.a nor in libmsvcrt.a */
#if 0
int waccess(const wchar_t *, int);
int wchmod(const wchar_t *, int);
int wcreat(const wchar_t *, int);
long wfindfirst(wchar_t *, struct _wfinddata_t *);
int wfindnext(long, struct _wfinddata_t *);
int wunlink(const wchar_t *);
int wrename(const wchar_t *, const wchar_t *);
int wopen(const wchar_t *, int, ...);
int wsopen(const wchar_t *, int, int, ...);
wchar_t * wmktemp(wchar_t *);
#endif
#endif /* Not _NO_OLDNAMES */
#ifdef __cplusplus
}
#endif
#endif /* Not RC_INVOKED */
#endif /* _IO_H_ not defined */
|
