1  /**********************************************************************
   2  
   3    rubyio.h -
   4  
   5    $Author: nobu $
   6    $Date: 2002/08/16 02:52:25 $
   7    created at: Fri Nov 12 16:47:09 JST 1993
   8  
   9    Copyright (C) 1993-2002 Yukihiro Matsumoto
  10  
  11  **********************************************************************/
  12  
  13  #ifndef RUBYIO_H
  14  #define RUBYIO_H
  15  
  16  #include <stdio.h>
  17  #include <errno.h>
  18  
  19  typedef struct OpenFile {
  20      FILE *f;                    /* stdio ptr for read/write */
  21      FILE *f2;                   /* additional ptr for rw pipes */
  22      int mode;                   /* mode flags */
  23      int pid;                    /* child's pid (for pipes) */
  24      int lineno;                 /* number of lines read */
  25      char *path;                 /* pathname for file */
  26      void (*finalize) _((struct OpenFile*)); /* finalize proc */
  27  } OpenFile;
  28  
  29  #define FMODE_READABLE  1
  30  #define FMODE_WRITABLE  2
  31  #define FMODE_READWRITE 3
  32  #define FMODE_BINMODE   4
  33  #define FMODE_SYNC      8
  34  #define FMODE_WBUF     16
  35  
  36  #define GetOpenFile(obj,fp) rb_io_check_closed((fp) = RFILE(rb_io_taint_check(obj))->fptr)
  37  
  38  #define MakeOpenFile(obj, fp) do {\
  39      if (RFILE(obj)->fptr) {\
rb_io_close(obj);\
  41          free(RFILE(obj)->fptr);\
RFILE(obj)->fptr = 0;\
  43      }\
  44      fp = 0;\
  45      fp = RFILE(obj)->fptr = ALLOC(OpenFile);\
  46      fp->f = fp->f2 = NULL;\
  47      fp->mode = 0;\
  48      fp->pid = 0;\
  49      fp->lineno = 0;\
  50      fp->path = NULL;\
  51      fp->finalize = 0;\
  52  } while (0)
  53  
  54  #define GetReadFile(fptr) ((fptr)->f)
  55  #define GetWriteFile(fptr) (((fptr)->f2) ? (fptr)->f2 : (fptr)->f)
  56  
  57  FILE *rb_fopen _((const char*, const char*));
  58  FILE *rb_fdopen _((int, const char*));
  59  int rb_getc _((FILE*));
  60  long rb_io_fread _((char *, long, FILE *));
  61  int  rb_io_mode_flags _((const char*));
  62  void rb_io_check_writable _((OpenFile*));
  63  void rb_io_check_readable _((OpenFile*));
  64  void rb_io_fptr_finalize _((OpenFile*));
  65  void rb_io_synchronized _((OpenFile*));
  66  void rb_io_check_closed _((OpenFile*));
  67  
  68  VALUE rb_io_taint_check _((VALUE));
  69  void rb_eof_error _((void));
  70  
  71  void rb_read_check _((FILE*));
  72  int rb_read_pending _((FILE*));
  73  #endif