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#ifndef RUBY_IO_H /*-*-C++-*-vi:se ft=cpp:*/
#define RUBY_IO_H 1
/**
* @file
* @author $Author$
* @date Fri Nov 12 16:47:09 JST 1993
* @copyright Copyright (C) 1993-2007 Yukihiro Matsumoto
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
*/
#include "ruby/internal/config.h"
#include <stdio.h>
#include "ruby/encoding.h"
#if defined(HAVE_STDIO_EXT_H)
#include <stdio_ext.h>
#endif
#include <errno.h>
#if defined(HAVE_POLL)
# ifdef _AIX
# define reqevents events
# define rtnevents revents
# endif
# include <poll.h>
# ifdef _AIX
# undef reqevents
# undef rtnevents
# undef events
# undef revents
# endif
# define RB_WAITFD_IN POLLIN
# define RB_WAITFD_PRI POLLPRI
# define RB_WAITFD_OUT POLLOUT
#else
# define RB_WAITFD_IN 0x001
# define RB_WAITFD_PRI 0x002
# define RB_WAITFD_OUT 0x004
#endif
typedef enum {
RUBY_IO_READABLE = RB_WAITFD_IN,
RUBY_IO_WRITABLE = RB_WAITFD_OUT,
RUBY_IO_PRIORITY = RB_WAITFD_PRI,
} rb_io_event_t;
#include "ruby/internal/dllexport.h"
RBIMPL_SYMBOL_EXPORT_BEGIN()
PACKED_STRUCT_UNALIGNED(struct rb_io_buffer_t {
char *ptr; /* off + len <= capa */
int off;
int len;
int capa;
});
typedef struct rb_io_buffer_t rb_io_buffer_t;
typedef struct rb_io_t {
VALUE self;
FILE *stdio_file; /* stdio ptr for read/write if available */
int fd; /* file descriptor */
int mode; /* mode flags: FMODE_XXXs */
rb_pid_t pid; /* child's pid (for pipes) */
int lineno; /* number of lines read */
VALUE pathv; /* pathname for file */
void (*finalize)(struct rb_io_t*,int); /* finalize proc */
rb_io_buffer_t wbuf, rbuf;
VALUE tied_io_for_writing;
/*
* enc enc2 read action write action
* NULL NULL force_encoding(default_external) write the byte sequence of str
* e1 NULL force_encoding(e1) convert str.encoding to e1
* e1 e2 convert from e2 to e1 convert str.encoding to e2
*/
struct rb_io_enc_t {
rb_encoding *enc;
rb_encoding *enc2;
int ecflags;
VALUE ecopts;
} encs;
rb_econv_t *readconv;
rb_io_buffer_t cbuf;
rb_econv_t *writeconv;
VALUE writeconv_asciicompat;
int writeconv_initialized;
int writeconv_pre_ecflags;
VALUE writeconv_pre_ecopts;
VALUE write_lock;
} rb_io_t;
typedef struct rb_io_enc_t rb_io_enc_t;
#define HAVE_RB_IO_T 1
#define FMODE_READABLE 0x00000001
#define FMODE_WRITABLE 0x00000002
#define FMODE_READWRITE (FMODE_READABLE|FMODE_WRITABLE)
#define FMODE_BINMODE 0x00000004
#define FMODE_SYNC 0x00000008
#define FMODE_TTY 0x00000010
#define FMODE_DUPLEX 0x00000020
#define FMODE_APPEND 0x00000040
#define FMODE_CREATE 0x00000080
/* #define FMODE_NOREVLOOKUP 0x00000100 */
#define FMODE_EXCL 0x00000400
#define FMODE_TRUNC 0x00000800
#define FMODE_TEXTMODE 0x00001000
/* #define FMODE_PREP 0x00010000 */
#define FMODE_SETENC_BY_BOM 0x00100000
/* #define FMODE_UNIX 0x00200000 */
/* #define FMODE_INET 0x00400000 */
/* #define FMODE_INET6 0x00800000 */
#define RB_IO_POINTER(obj,fp) rb_io_check_closed((fp) = RFILE(rb_io_taint_check(obj))->fptr)
#define GetOpenFile RB_IO_POINTER
#define RB_IO_OPEN(obj, fp) do {\
(fp) = rb_io_make_open_file(obj);\
} while (0)
#define MakeOpenFile RB_IO_OPEN
rb_io_t *rb_io_make_open_file(VALUE obj);
FILE *rb_io_stdio_file(rb_io_t *fptr);
FILE *rb_fdopen(int, const char*);
int rb_io_modestr_fmode(const char *modestr);
int rb_io_modestr_oflags(const char *modestr);
CONSTFUNC(int rb_io_oflags_fmode(int oflags));
void rb_io_check_writable(rb_io_t*);
void rb_io_check_readable(rb_io_t*);
void rb_io_check_char_readable(rb_io_t *fptr);
void rb_io_check_byte_readable(rb_io_t *fptr);
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*);
VALUE rb_io_get_io(VALUE io);
VALUE rb_io_check_io(VALUE io);
VALUE rb_io_get_write_io(VALUE io);
VALUE rb_io_set_write_io(VALUE io, VALUE w);
void rb_io_set_nonblock(rb_io_t *fptr);
int rb_io_extract_encoding_option(VALUE opt, rb_encoding **enc_p, rb_encoding **enc2_p, int *fmode_p);
void rb_io_extract_modeenc(VALUE *vmode_p, VALUE *vperm_p, VALUE opthash, int *oflags_p, int *fmode_p, rb_io_enc_t *convconfig_p);
ssize_t rb_io_bufwrite(VALUE io, const void *buf, size_t size);
int rb_io_wait_readable(int fd);
int rb_io_wait_writable(int fd);
int rb_wait_for_single_fd(int fd, int events, struct timeval *tv);
VALUE rb_io_wait(VALUE io, VALUE events, VALUE timeout);
/* compatibility for ruby 1.8 and older */
#define rb_io_mode_flags(modestr) [<"rb_io_mode_flags() is obsolete; use rb_io_modestr_fmode()">]
#define rb_io_modenum_flags(oflags) [<"rb_io_modenum_flags() is obsolete; use rb_io_oflags_fmode()">]
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*);
struct stat;
VALUE rb_stat_new(const struct stat *);
/* gc.c */
RBIMPL_SYMBOL_EXPORT_END()
#endif /* RUBY_IO_H */