314 lines
9.4 KiB
C
314 lines
9.4 KiB
C
/*
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* io.h
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is a part of the mingw-runtime package.
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* No warranty is given; refer to the file DISCLAIMER within the package.
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*
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* System level I/O functions and types.
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*
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*/
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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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/* 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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#include <sys/types.h> /* To get time_t. */
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#include <stdint.h> /* For intptr_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 maximum length of a file name. You should use GetVolumeInformation
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* instead of this constant. But hey, this works.
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* Also defined in stdio.h.
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*/
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#ifndef FILENAME_MAX
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#define FILENAME_MAX (260)
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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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struct _finddatai64_t {
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unsigned attrib;
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time_t time_create;
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time_t time_access;
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time_t time_write;
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__int64 size;
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char name[FILENAME_MAX];
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};
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struct __finddata64_t {
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unsigned attrib;
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__time64_t time_create;
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__time64_t time_access;
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__time64_t time_write;
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_fsize_t size;
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char name[FILENAME_MAX];
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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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struct _wfinddatai64_t {
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unsigned attrib;
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time_t time_create;
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time_t time_access;
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time_t time_write;
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__int64 size;
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wchar_t name[FILENAME_MAX];
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};
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struct __wfinddata64_t {
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unsigned attrib;
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__time64_t time_create;
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__time64_t time_access;
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__time64_t time_write;
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_fsize_t size;
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wchar_t name[FILENAME_MAX];
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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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/* FIXME: Should these all use intptr_t, as per recent MSDN docs? */
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_CRTIMP long __cdecl _findfirst (const char*, struct _finddata_t*);
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_CRTIMP int __cdecl _findnext (long, struct _finddata_t*);
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_CRTIMP int __cdecl _findclose (long);
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_CRTIMP int __cdecl _chdir (const char*);
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_CRTIMP char* __cdecl _getcwd (char*, int);
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_CRTIMP int __cdecl _mkdir (const char*);
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_CRTIMP char* __cdecl _mktemp (char*);
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_CRTIMP int __cdecl _rmdir (const char*);
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_CRTIMP int __cdecl _chmod (const char*, int);
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#ifdef __MSVCRT__
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_CRTIMP __int64 __cdecl _filelengthi64(int);
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_CRTIMP long __cdecl _findfirsti64(const char*, struct _finddatai64_t*);
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_CRTIMP int __cdecl _findnexti64(long, struct _finddatai64_t*);
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_CRTIMP __int64 __cdecl _lseeki64(int, __int64, int);
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_CRTIMP __int64 __cdecl _telli64(int);
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/* These require newer versions of msvcrt.dll (6.1 or higher). */
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#if __MSVCRT_VERSION__ >= 0x0601
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_CRTIMP intptr_t __cdecl _findfirst64(const char*, struct __finddata64_t*);
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_CRTIMP intptr_t __cdecl _findnext64(intptr_t, struct __finddata64_t*);
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#endif /* __MSVCRT_VERSION__ >= 0x0601 */
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#ifndef __NO_MINGW_LFS
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__CRT_INLINE off64_t lseek64 (int fd, off64_t offset, int whence)
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{
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return _lseeki64(fd, (__int64) offset, whence);
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}
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#endif
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#endif /* __MSVCRT__ */
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#ifndef _NO_OLDNAMES
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#ifndef _UWIN
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_CRTIMP int __cdecl chdir (const char*);
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_CRTIMP char* __cdecl getcwd (char*, int);
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_CRTIMP int __cdecl mkdir (const char*);
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_CRTIMP char* __cdecl mktemp (char*);
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_CRTIMP int __cdecl rmdir (const char*);
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_CRTIMP int __cdecl chmod (const char*, int);
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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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/* 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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_CRTIMP int __cdecl _access (const char*, int);
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_CRTIMP int __cdecl _chsize (int, long);
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_CRTIMP int __cdecl _close (int);
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_CRTIMP int __cdecl _commit(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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_CRTIMP int __cdecl _creat (const char*, int);
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_CRTIMP int __cdecl _dup (int);
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_CRTIMP int __cdecl _dup2 (int, int);
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_CRTIMP long __cdecl _filelength (int);
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_CRTIMP long __cdecl _get_osfhandle (int);
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_CRTIMP int __cdecl _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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_CRTIMP int __cdecl _eof (int);
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#endif
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/* LK_... locking commands defined in sys/locking.h. */
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_CRTIMP int __cdecl _locking (int, int, long);
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_CRTIMP long __cdecl _lseek (int, long, int);
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/* Optional third argument is unsigned unPermissions. */
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_CRTIMP int __cdecl _open (const char*, int, ...);
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_CRTIMP int __cdecl _open_osfhandle (long, int);
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_CRTIMP int __cdecl _pipe (int *, unsigned int, int);
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_CRTIMP int __cdecl _read (int, void*, unsigned int);
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_CRTIMP int __cdecl _setmode (int, 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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_CRTIMP int __cdecl _sopen (const char*, int, int, ...);
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_CRTIMP long __cdecl _tell (int);
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/* Should umask be in sys/stat.h and/or sys/types.h instead? */
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_CRTIMP int __cdecl _umask (int);
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_CRTIMP int __cdecl _unlink (const char*);
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_CRTIMP int __cdecl _write (int, const void*, unsigned int);
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/* Wide character versions. Also declared in wchar.h. */
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/* Not in crtdll.dll */
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#if !defined (_WIO_DEFINED)
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#if defined (__MSVCRT__)
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_CRTIMP int __cdecl _waccess(const wchar_t*, int);
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_CRTIMP int __cdecl _wchmod(const wchar_t*, int);
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_CRTIMP int __cdecl _wcreat(const wchar_t*, int);
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_CRTIMP long __cdecl _wfindfirst(const wchar_t*, struct _wfinddata_t*);
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_CRTIMP int __cdecl _wfindnext(long, struct _wfinddata_t *);
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_CRTIMP int __cdecl _wunlink(const wchar_t*);
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_CRTIMP int __cdecl _wopen(const wchar_t*, int, ...);
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_CRTIMP int __cdecl _wsopen(const wchar_t*, int, int, ...);
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_CRTIMP wchar_t * __cdecl _wmktemp(wchar_t*);
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_CRTIMP long __cdecl _wfindfirsti64(const wchar_t*, struct _wfinddatai64_t*);
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_CRTIMP int __cdecl _wfindnexti64(long, struct _wfinddatai64_t*);
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#if __MSVCRT_VERSION__ >= 0x0601
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_CRTIMP intptr_t __cdecl _wfindfirst64(const wchar_t*, struct __wfinddata64_t*);
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_CRTIMP intptr_t __cdecl _wfindnext64(intptr_t, struct __wfinddata64_t*);
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#endif
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#endif /* defined (__MSVCRT__) */
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#define _WIO_DEFINED
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#endif /* _WIO_DEFINED */
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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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_CRTIMP int __cdecl access (const char*, int);
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_CRTIMP int __cdecl chsize (int, long );
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_CRTIMP int __cdecl close (int);
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_CRTIMP int __cdecl creat (const char*, int);
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_CRTIMP int __cdecl dup (int);
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_CRTIMP int __cdecl dup2 (int, int);
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_CRTIMP int __cdecl eof (int);
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_CRTIMP long __cdecl filelength (int);
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_CRTIMP int __cdecl isatty (int);
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_CRTIMP long __cdecl lseek (int, long, int);
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_CRTIMP int __cdecl open (const char*, int, ...);
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_CRTIMP int __cdecl read (int, void*, unsigned int);
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_CRTIMP int __cdecl setmode (int, int);
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_CRTIMP int __cdecl sopen (const char*, int, int, ...);
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_CRTIMP long __cdecl tell (int);
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_CRTIMP int __cdecl umask (int);
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_CRTIMP int __cdecl unlink (const char*);
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_CRTIMP int __cdecl 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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/* Where do these live? Not in libmoldname.a nor in libmsvcrt.a */
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#if 0
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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
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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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