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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: */