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#ifndef _PERLIOL_H
#define _PERLIOL_H
typedef struct {
PerlIO_funcs *funcs;
SV *arg;
} PerlIO_pair_t;
struct PerlIO_list_s {
IV refcnt;
IV cur;
IV len;
PerlIO_pair_t *array;
};
struct _PerlIO_funcs {
Size_t fsize;
const char *name;
Size_t size;
U32 kind;
IV (*Pushed) (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
IV (*Popped) (pTHX_ PerlIO *f);
PerlIO *(*Open) (pTHX_ PerlIO_funcs *tab,
PerlIO_list_t *layers, IV n,
const char *mode,
int fd, int imode, int perm,
PerlIO *old, int narg, SV **args);
IV (*Binmode)(pTHX_ PerlIO *f);
SV *(*Getarg) (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags);
IV (*Fileno) (pTHX_ PerlIO *f);
PerlIO *(*Dup) (pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
/* Unix-like functions - cf sfio line disciplines */
SSize_t(*Read) (pTHX_ PerlIO *f, void *vbuf, Size_t count);
SSize_t(*Unread) (pTHX_ PerlIO *f, const void *vbuf, Size_t count);
SSize_t(*Write) (pTHX_ PerlIO *f, const void *vbuf, Size_t count);
IV (*Seek) (pTHX_ PerlIO *f, Off_t offset, int whence);
Off_t(*Tell) (pTHX_ PerlIO *f);
IV (*Close) (pTHX_ PerlIO *f);
/* Stdio-like buffered IO functions */
IV (*Flush) (pTHX_ PerlIO *f);
IV (*Fill) (pTHX_ PerlIO *f);
IV (*Eof) (pTHX_ PerlIO *f);
IV (*Error) (pTHX_ PerlIO *f);
void (*Clearerr) (pTHX_ PerlIO *f);
void (*Setlinebuf) (pTHX_ PerlIO *f);
/* Perl's snooping functions */
STDCHAR *(*Get_base) (pTHX_ PerlIO *f);
Size_t(*Get_bufsiz) (pTHX_ PerlIO *f);
STDCHAR *(*Get_ptr) (pTHX_ PerlIO *f);
SSize_t(*Get_cnt) (pTHX_ PerlIO *f);
void (*Set_ptrcnt) (pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt);
};
/*--------------------------------------------------------------------------------------*/
/* Kind values */
#define PERLIO_K_RAW 0x00000001
#define PERLIO_K_BUFFERED 0x00000002
#define PERLIO_K_CANCRLF 0x00000004
#define PERLIO_K_FASTGETS 0x00000008
#define PERLIO_K_DUMMY 0x00000010
#define PERLIO_K_UTF8 0x00008000
#define PERLIO_K_DESTRUCT 0x00010000
#define PERLIO_K_MULTIARG 0x00020000
/*--------------------------------------------------------------------------------------*/
struct _PerlIO {
PerlIOl *next; /* Lower layer */
PerlIO_funcs *tab; /* Functions for this layer */
U32 flags; /* Various flags for state */
int err; /* Saved errno value */
#ifdef VMS
unsigned os_err; /* Saved vaxc$errno value */
#elif defined (OS2)
unsigned long os_err;
#elif defined (WIN32)
DWORD os_err; /* Saved GetLastError() value */
#endif
PerlIOl *head; /* our ultimate parent pointer */
};
/*--------------------------------------------------------------------------------------*/
/* Flag values */
#define PERLIO_F_EOF 0x00000100
#define PERLIO_F_CANWRITE 0x00000200
#define PERLIO_F_CANREAD 0x00000400
#define PERLIO_F_ERROR 0x00000800
#define PERLIO_F_TRUNCATE 0x00001000
#define PERLIO_F_APPEND 0x00002000
#define PERLIO_F_CRLF 0x00004000
#define PERLIO_F_UTF8 0x00008000
#define PERLIO_F_UNBUF 0x00010000
#define PERLIO_F_WRBUF 0x00020000
#define PERLIO_F_RDBUF 0x00040000
#define PERLIO_F_LINEBUF 0x00080000
#define PERLIO_F_TEMP 0x00100000
#define PERLIO_F_OPEN 0x00200000
#define PERLIO_F_FASTGETS 0x00400000
#define PERLIO_F_TTY 0x00800000
#define PERLIO_F_NOTREG 0x01000000
#define PERLIO_F_CLEARED 0x02000000 /* layer cleared but not freed */
#define PerlIOBase(f) (*(f))
#define PerlIOSelf(f,type) ((type *)PerlIOBase(f))
#define PerlIONext(f) (&(PerlIOBase(f)->next))
#define PerlIOValid(f) ((f) && *(f))
/*--------------------------------------------------------------------------------------*/
/* Data exports - EXTCONST rather than extern is needed for Cygwin */
#undef EXTPERLIO
#ifdef PERLIO_FUNCS_CONST
#define EXTPERLIO EXTCONST
#else
#define EXTPERLIO EXT
#endif
EXTPERLIO PerlIO_funcs PerlIO_unix;
EXTPERLIO PerlIO_funcs PerlIO_perlio;
EXTPERLIO PerlIO_funcs PerlIO_stdio;
EXTPERLIO PerlIO_funcs PerlIO_crlf;
EXTPERLIO PerlIO_funcs PerlIO_utf8;
EXTPERLIO PerlIO_funcs PerlIO_byte;
EXTPERLIO PerlIO_funcs PerlIO_raw;
EXTPERLIO PerlIO_funcs PerlIO_pending;
#ifdef WIN32
EXTPERLIO PerlIO_funcs PerlIO_win32;
#endif
PERL_CALLCONV PerlIO *PerlIO_allocate(pTHX);
PERL_CALLCONV SV *PerlIO_arg_fetch(PerlIO_list_t *av, IV n);
#define PerlIOArg PerlIO_arg_fetch(layers,n)
#ifdef PERLIO_USING_CRLF
#define PERLIO_STDTEXT "t"
#else
#define PERLIO_STDTEXT ""
#endif
/*--------------------------------------------------------------------------------------*/
/* perlio buffer layer
As this is reasonably generic its struct and "methods" are declared here
so they can be used to "inherit" from it.
*/
typedef struct {
struct _PerlIO base; /* Base "class" info */
STDCHAR *buf; /* Start of buffer */
STDCHAR *end; /* End of valid part of buffer */
STDCHAR *ptr; /* Current position in buffer */
Off_t posn; /* Offset of buf into the file */
Size_t bufsiz; /* Real size of buffer */
IV oneword; /* Emergency buffer */
} PerlIOBuf;
PERL_CALLCONV int PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode,
PerlIO_list_t *layers, IV n, IV max);
PERL_CALLCONV int PerlIO_parse_layers(pTHX_ PerlIO_list_t *av, const char *names);
PERL_CALLCONV PerlIO_funcs *PerlIO_layer_fetch(pTHX_ PerlIO_list_t *av, IV n, PerlIO_funcs *def);
PERL_CALLCONV SV *PerlIO_sv_dup(pTHX_ SV *arg, CLONE_PARAMS *param);
PERL_CALLCONV void PerlIO_cleantable(pTHX_ PerlIOl **tablep);
PERL_CALLCONV SV * PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab);
PERL_CALLCONV void PerlIO_default_buffer(pTHX_ PerlIO_list_t *av);
PERL_CALLCONV void PerlIO_stdstreams(pTHX);
PERL_CALLCONV int PerlIO__close(pTHX_ PerlIO *f);
PERL_CALLCONV PerlIO_list_t * PerlIO_resolve_layers(pTHX_ const char *layers, const char *mode, int narg, SV **args);
PERL_CALLCONV PerlIO_funcs * PerlIO_default_layer(pTHX_ I32 n);
PERL_CALLCONV PerlIO_list_t * PerlIO_default_layers(pTHX);
PERL_CALLCONV PerlIO * PerlIO_reopen(const char *path, const char *mode, PerlIO *f);
PERL_CALLCONV PerlIO_list_t *PerlIO_list_alloc(pTHX);
PERL_CALLCONV PerlIO_list_t *PerlIO_clone_list(pTHX_ PerlIO_list_t *proto, CLONE_PARAMS *param);
PERL_CALLCONV void PerlIO_list_free(pTHX_ PerlIO_list_t *list);
PERL_CALLCONV void PerlIO_list_push(pTHX_ PerlIO_list_t *list, PerlIO_funcs *funcs, SV *arg);
PERL_CALLCONV void PerlIO_list_free(pTHX_ PerlIO_list_t *list);
/* PerlIO_teardown doesn't need exporting, but the EXTERN_C is needed
* for compiling as C++. Must also match with what perl.h says. */
EXTERN_C void PerlIO_teardown(void);
/*--------------------------------------------------------------------------------------*/
/* Generic, or stub layer functions */
PERL_CALLCONV IV PerlIOBase_binmode(pTHX_ PerlIO *f);
PERL_CALLCONV void PerlIOBase_clearerr(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBase_close(pTHX_ PerlIO *f);
PERL_CALLCONV PerlIO * PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
PERL_CALLCONV IV PerlIOBase_eof(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBase_error(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBase_fileno(pTHX_ PerlIO *f);
PERL_CALLCONV void PerlIOBase_flush_linebuf(pTHX);
PERL_CALLCONV IV PerlIOBase_noop_fail(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBase_noop_ok(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBase_popped(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBase_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
PERL_CALLCONV PerlIO * PerlIOBase_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args);
PERL_CALLCONV SSize_t PerlIOBase_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
PERL_CALLCONV void PerlIOBase_setlinebuf(pTHX_ PerlIO *f);
PERL_CALLCONV SSize_t PerlIOBase_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
/* Buf */
PERL_CALLCONV Size_t PerlIOBuf_bufsiz(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBuf_close(pTHX_ PerlIO *f);
PERL_CALLCONV PerlIO * PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
PERL_CALLCONV IV PerlIOBuf_fill(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBuf_flush(pTHX_ PerlIO *f);
PERL_CALLCONV STDCHAR * PerlIOBuf_get_base(pTHX_ PerlIO *f);
PERL_CALLCONV SSize_t PerlIOBuf_get_cnt(pTHX_ PerlIO *f);
PERL_CALLCONV STDCHAR * PerlIOBuf_get_ptr(pTHX_ PerlIO *f);
PERL_CALLCONV PerlIO * PerlIOBuf_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args);
PERL_CALLCONV IV PerlIOBuf_popped(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOBuf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
PERL_CALLCONV SSize_t PerlIOBuf_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
PERL_CALLCONV IV PerlIOBuf_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
PERL_CALLCONV void PerlIOBuf_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt);
PERL_CALLCONV Off_t PerlIOBuf_tell(pTHX_ PerlIO *f);
PERL_CALLCONV SSize_t PerlIOBuf_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
PERL_CALLCONV SSize_t PerlIOBuf_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
/* Crlf */
PERL_CALLCONV IV PerlIOCrlf_binmode(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOCrlf_flush(pTHX_ PerlIO *f);
PERL_CALLCONV SSize_t PerlIOCrlf_get_cnt(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOCrlf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
PERL_CALLCONV void PerlIOCrlf_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt);
PERL_CALLCONV SSize_t PerlIOCrlf_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
PERL_CALLCONV SSize_t PerlIOCrlf_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
/* Pending */
PERL_CALLCONV IV PerlIOPending_close(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOPending_fill(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOPending_flush(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOPending_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
PERL_CALLCONV SSize_t PerlIOPending_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
PERL_CALLCONV IV PerlIOPending_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
PERL_CALLCONV void PerlIOPending_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt);
/* Pop */
PERL_CALLCONV IV PerlIOPop_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
/* Raw */
PERL_CALLCONV IV PerlIORaw_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
/* Stdio */
PERL_CALLCONV void PerlIOStdio_clearerr(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOStdio_close(pTHX_ PerlIO *f);
PERL_CALLCONV PerlIO * PerlIOStdio_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
PERL_CALLCONV IV PerlIOStdio_eof(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOStdio_error(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOStdio_fileno(pTHX_ PerlIO *f);
#ifdef USE_STDIO_PTR
PERL_CALLCONV STDCHAR * PerlIOStdio_get_ptr(pTHX_ PerlIO *f);
PERL_CALLCONV SSize_t PerlIOStdio_get_cnt(pTHX_ PerlIO *f);
PERL_CALLCONV void PerlIOStdio_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt);
#endif
PERL_CALLCONV IV PerlIOStdio_fill(pTHX_ PerlIO *f);
PERL_CALLCONV IV PerlIOStdio_flush(pTHX_ PerlIO *f);
#ifdef FILE_base
PERL_CALLCONV STDCHAR * PerlIOStdio_get_base(pTHX_ PerlIO *f);
PERL_CALLCONV Size_t PerlIOStdio_get_bufsiz(pTHX_ PerlIO *f);
#endif
PERL_CALLCONV char * PerlIOStdio_mode(const char *mode, char *tmode);
PERL_CALLCONV PerlIO * PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args);
PERL_CALLCONV IV PerlIOStdio_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
PERL_CALLCONV SSize_t PerlIOStdio_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
PERL_CALLCONV IV PerlIOStdio_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
PERL_CALLCONV void PerlIOStdio_setlinebuf(pTHX_ PerlIO *f);
PERL_CALLCONV Off_t PerlIOStdio_tell(pTHX_ PerlIO *f);
PERL_CALLCONV SSize_t PerlIOStdio_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
PERL_CALLCONV SSize_t PerlIOStdio_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
/* Unix */
PERL_CALLCONV IV PerlIOUnix_close(pTHX_ PerlIO *f);
PERL_CALLCONV PerlIO * PerlIOUnix_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
PERL_CALLCONV IV PerlIOUnix_fileno(pTHX_ PerlIO *f);
PERL_CALLCONV int PerlIOUnix_oflags(const char *mode);
PERL_CALLCONV PerlIO * PerlIOUnix_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args);
PERL_CALLCONV IV PerlIOUnix_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
PERL_CALLCONV SSize_t PerlIOUnix_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
PERL_CALLCONV int PerlIOUnix_refcnt_dec(int fd);
PERL_CALLCONV void PerlIOUnix_refcnt_inc(int fd);
PERL_CALLCONV int PerlIOUnix_refcnt(int fd);
PERL_CALLCONV IV PerlIOUnix_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
PERL_CALLCONV Off_t PerlIOUnix_tell(pTHX_ PerlIO *f);
PERL_CALLCONV SSize_t PerlIOUnix_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
/* Utf8 */
PERL_CALLCONV IV PerlIOUtf8_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
#endif /* _PERLIOL_H */
/*
* ex: set ts=8 sts=4 sw=4 et:
*/