reactos/lib/crt/include/internal/file.h

   1 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
   2 /*
   3  * Some stuff taken from active perl: perl\win32.c (ioinfo stuff)
   4  *
   5  * (c) 1995 Microsoft Corporation. All rights reserved.
   6  *       Developed by hip communications inc., http://info.hip.com/info/
   7  * Portions (c) 1993 Intergraph Corporation. All rights reserved.
   8  *
   9  *    You may distribute under the terms of either the GNU General Public
  10  *    License or the Artistic License, as specified in the README file.
  11  */
  12
  13 #ifndef __CRT_INTERNAL_FILE_H
  14 #define __CRT_INTERNAL_FILE_H
  15
  16 #include <stdio.h>
  17 #include <fcntl.h>
  18 #include <stdarg.h>
  19
  20 #include <windef.h>
  21 #include <winbase.h>
  22 #include <winnt.h>
  23
  24 #ifndef _IORMONCL
  25 #define _IORMONCL 004000  /* remove on close, for temp files */
  26 #endif
  27 /* if _flag & _IORMONCL, ._name_to_remove needs freeing */
  28
  29 #ifndef _IOUNGETC
  30 #define _IOUNGETC 010000  /* there is an ungetc'ed character in the buffer */
  31 #endif
  32
  33 /* might need check for IO_APPEND aswell */
  34 #define OPEN4WRITING(f) ((((f)->_flag & _IOWRT)  == _IOWRT))
  35 #define OPEN4READING(f) ((((f)->_flag & _IOREAD) == _IOREAD))
  36
  37 /* might need check for IO_APPEND aswell */
  38 #define WRITE_STREAM(f) ((((f)->_flag & _IOWRT) == _IOWRT))
  39 #define READ_STREAM(f) ((((f)->_flag & _IOREAD) == _IOREAD))
  40
  41 char __validfp(FILE*);
  42 int __set_errno(int err);
  43 int __set_doserrno(int error);
  44 void* filehnd(int fn);
  45 char __is_text_file(FILE*);
  46 int alloc_fd(void* hFile, char mode);
  47 int _doprnt(const char* fmt, va_list args, FILE *);
  48 int _doscan(FILE* iop, const char* fmt, va_list argp);
  49 int __fileno_dup2(int handle1, int handle2);
  50 char __fileno_getmode(int _fd);
  51 int __fileno_setmode(int _fd, int _newmode);
  52 void free_fd(int _fd);
  53 void sigabort_handler(int sig);
  54 char split_oflags(int oflags);
  55
  56 unsigned create_io_inherit_block(STARTUPINFOA* si);
  57 void UnixTimeToFileTime(time_t unix_time, FILETIME* filetime, DWORD remainder);
  58 time_t FileTimeToUnixTime(const FILETIME* filetime, DWORD *remainder);
  59
  60
  61 #define __FILE_REC_MAX 20
  62 typedef struct __file_rec
  63 {
  64     struct __file_rec* next;
  65     int count;
  66     FILE* files[__FILE_REC_MAX];
  67 } __file_rec;
  68
  69 extern __file_rec* __file_rec_list;
  70
  71
  72 typedef struct _FDINFO
  73 {
  74     HANDLE hFile;
  75     char fdflags;
  76     char pipechar;    /* one char buffer for handles opened on pipes */
  77     int lockinitflag;
  78     CRITICAL_SECTION lock;
  79 } FDINFO;
  80
  81 #define FDINFO_ENTRIES_PER_BUCKET_SHIFT 5  /* log2(32) = 5 */
  82 #define FDINFO_BUCKETS 64
  83 #define FDINFO_ENTRIES_PER_BUCKET 32
  84 #define FDINFO_ENTRIES (FDINFO_BUCKETS * FDINFO_ENTRIES_PER_BUCKET)
  85
  86 /* pipech */
  87 #define LF        10 /* line feed */
  88 #define CR        13 /* carriage return */
  89 #define CTRLZ     26      /* ctrl-z means eof for text */
  90
  91 /* mode */
  92 #define FOPEN        0x01  /* file handle open */
  93 #define FEOFLAG      0x02  /* end of file has been encountered */
  94 #define FCRLF        0x04  /* CR-LF across read buffer (in text mode) */
  95 #define FPIPE        0x08  /* file refers to a pipe */
  96 #define FNOINHERIT   0x10  /* file handle opened _O_NOINHERIT */
  97 #define FAPPEND      0x20  /* file opened O_APPEND */
  98 #define FDEV         0x40  /* file refers to device */
  99 #define FTEXT        0x80  /* file is in text mode (absence = binary) */
 100
 101 /* get bucket index (0-63) from an fd */
 102 #define fdinfo_bucket_idx(i) ((i) >> FDINFO_ENTRIES_PER_BUCKET_SHIFT)
 103 /* get position inside a bucket (0-31) from an fd */
 104 #define fdinfo_bucket_entry_idx(i) ((i) & (FDINFO_ENTRIES_PER_BUCKET - 1))
 105 /* get bucket ptr. (ptr. to fist fdinfo inside a bucket) from an fd */
 106 #define fdinfo_bucket(i) ( __pioinfo[fdinfo_bucket_idx(i)])
 107 /* get fdinfo ptr. from an fd */
 108 #define fdinfo(i) (fdinfo_bucket(i) + fdinfo_bucket_entry_idx(i))
 109
 110 extern FDINFO* __pioinfo[];
 111
 112
 113 void _dosmaperr(unsigned long oserrcode);
 114
 115
 116
 117 FILE* __alloc_file(void);
 118
 119
 120
 121 int access_dirA(const char *_path);
 122 int access_dirW(const wchar_t *_path);
 123
 124 #ifdef _UNICODE
 125    #define access_dirT access_dirW
 126 #else
 127    #define access_dirT access_dirA
 128 #endif
 129
 130
 131
 132 void _fwalk(void (*func)(FILE*)); // not exported
 133
 134
 135
 136 #undef MB_CUR_MAX
 137 #define MB_CUR_MAX __mb_cur_max
 138
 139
 140 int _isnanl(double x);
 141 int _isinfl(double x);
 142 int _isnan(double x);
 143 int _isinf(double x);
 144
 145
 146
 147 /* Flags for the iobuf structure (for reference) */
 148 #if 0
 149 #define  _IOREAD  1 /* currently reading */
 150 #define  _IOWRT   2 /* currently writing */
 151 #define  _IORW 0x0080 /* opened as "r+w" */
 152 #endif
 153
 154 /* internal FILE->_flag flags */
 155
 156 #define _IOMYBUF  0x0008  /* stdio malloc()'d buffer */
 157 #define _IOEOF    0x0010  /* EOF reached on read */
 158 #define _IOERR    0x0020  /* I/O error from system */
 159 #define _IOSTRG   0x0040  /* Strange or no file descriptor */
 160
 161 #define _IOBINARY 0x040000
 162 #define _IOTEXT   0x000000
 163
 164 #define _IOCOMMIT 0x100000
 165
 166 #define _IODIRTY  0x010000
 167 #define _IOAHEAD  0x020000
 168
 169
 170
 171
 172 /*
 173  * The three possible buffering mode (nMode) values for setvbuf.
 174  * NOTE: _IOFBF works, but _IOLBF seems to work like unbuffered...
 175  * maybe I'm testing it wrong?
 176  */
 177 #define _IOFBF    0x0000     /* full buffered */
 178 #define _IOLBF    0x0040     /* line buffered */
 179 #define _IONBF    0x0004     /* not buffered */
 180
 181 #define _IO_LBF   0x80000    /* this value is used insteat of _IOLBF within the
 182                                 structure FILE as value for _flags,
 183                                 because _IOLBF has the same value as _IOSTRG */
 184
 185
 186 wint_t _filwbuf(FILE *f);
 187
 188 #if __MINGW32_MAJOR_VERSION < 3 || __MINGW32_MINOR_VERSION < 2
 189    int __cdecl _filbuf (FILE*);
 190    int __cdecl _flsbuf (int, FILE*);
 191 #endif
 192
 193
 194 #endif /* __dj_include_libc_file_h__ */