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/**********************************************************************
rubyio.h -
$Author$
$Date$
created at: Fri Nov 12 16:47:09 JST 1993
Copyright (C) 1993-2007 Yukihiro Matsumoto
**********************************************************************/
#ifndef RUBY_IO_H
#define RUBY_IO_H 1
#if defined(__cplusplus)
extern "C" {
#if 0
} /* satisfy cc-mode */
#endif
#endif
#include <stdio.h>
#include <errno.h>
#include "ruby/encoding.h"
#if defined(HAVE_STDIO_EXT_H)
#include <stdio_ext.h>
#endif
typedef struct rb_io_t {
int fd; /* file descriptor */
FILE *stdio_file; /* stdio ptr for read/write if available */
int mode; /* mode flags */
rb_pid_t pid; /* child's pid (for pipes) */
int lineno; /* number of lines read */
char *path; /* pathname for file */
void (*finalize)(struct rb_io_t*,int); /* finalize proc */
long refcnt;
char *wbuf; /* wbuf_off + wbuf_len <= wbuf_capa */
int wbuf_off;
int wbuf_len;
int wbuf_capa;
char *rbuf; /* rbuf_off + rbuf_len <= rbuf_capa */
int rbuf_off;
int rbuf_len;
int rbuf_capa;
VALUE tied_io_for_writing;
rb_encoding *enc;
rb_encoding *enc2;
} rb_io_t;
#define HAVE_RB_IO_T 1
#define FMODE_READABLE 1
#define FMODE_WRITABLE 2
#define FMODE_READWRITE 3
#define FMODE_APPEND 64
#define FMODE_CREATE 128
#define FMODE_BINMODE 4
#define FMODE_SYNC 8
#define FMODE_TTY 16
#define FMODE_DUPLEX 32
#define FMODE_WSPLIT 0x200
#define FMODE_WSPLIT_INITIALIZED 0x400
#define GetOpenFile(obj,fp) rb_io_check_closed((fp) = RFILE(rb_io_taint_check(obj))->fptr)
#define MakeOpenFile(obj, fp) do {\
if (RFILE(obj)->fptr) {\
rb_io_close(obj);\
free(RFILE(obj)->fptr);\
RFILE(obj)->fptr = 0;\
}\
fp = 0;\
fp = RFILE(obj)->fptr = ALLOC(rb_io_t);\
fp->fd = -1;\
fp->stdio_file = NULL;\
fp->mode = 0;\
fp->pid = 0;\
fp->lineno = 0;\
fp->path = NULL;\
fp->finalize = 0;\
fp->refcnt = 1;\
fp->wbuf = NULL;\
fp->wbuf_off = 0;\
fp->wbuf_len = 0;\
fp->wbuf_capa = 0;\
fp->rbuf = NULL;\
fp->rbuf_off = 0;\
fp->rbuf_len = 0;\
fp->rbuf_capa = 0;\
fp->tied_io_for_writing = 0;\
fp->enc = 0;\
fp->enc2 = 0;\
} while (0)
FILE *rb_io_stdio_file(rb_io_t *fptr);
FILE *rb_fopen(const char*, const char*);
FILE *rb_fdopen(int, const char*);
int rb_io_mode_flags(const char*);
int rb_io_modenum_flags(int);
void rb_io_check_writable(rb_io_t*);
void rb_io_check_readable(rb_io_t*);
int rb_io_fptr_finalize(rb_io_t*);
void rb_io_synchronized(rb_io_t*);
void rb_io_check_initialized(rb_io_t*);
void rb_io_check_closed(rb_io_t*);
int rb_io_wait_readable(int);
int rb_io_wait_writable(int);
void rb_io_set_nonblock(rb_io_t *fptr);
VALUE rb_io_taint_check(VALUE);
NORETURN(void rb_eof_error(void));
void rb_io_read_check(rb_io_t*);
int rb_io_read_pending(rb_io_t*);
void rb_read_check(FILE*);
DEPRECATED(int rb_getc(FILE*));
DEPRECATED(long rb_io_fread(char *, long, FILE *));
DEPRECATED(long rb_io_fwrite(const char *, long, FILE *));
DEPRECATED(int rb_read_pending(FILE*));
#if defined(__cplusplus)
#if 0
{ /* satisfy cc-mode */
#endif
} /* extern "C" { */
#endif
#endif /* RUBY_IO_H */
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