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PXPerlWrap (PXPerl, reloaded)

, 3 Nov 2004
A comprehensive Perl embedding solution.
pxperldemo.zip
PERL_CORE
arpa
perl58.lib
PerlEz.lib
sys
Release
lib
auto
PerlIO
encoding
encoding.dll
scalar
scalar.dll
via
via.dll
Carp.pm
Exporter.pm
PerlIO
encoding.pm
scalar.pm
via
QuotedPrint.pm
via.pm
PerlIO.pm
strict.pm
Symbol.pm
THESE ARE REQUIRED LIBs
warnings.pm
XSLoader.pm
perl58.dll
PXPerlDemo.exe
res
perl.ico
perl2.ico
perl3.ico
perlsistent.pl
PXPerlDemo.ico
PXPerlDemo.manifest
pxperl_demo.zip
perl58.lib
PerlEz.lib
encoding.dll
scalar.dll
via.dll
Carp.pm
Exporter.pm
encoding.pm
scalar.pm
QuotedPrint.pm
via.pm
PerlIO.pm
strict.pm
Symbol.pm
THESE ARE REQUIRED LIBs
warnings.pm
XSLoader.pm
perl58.dll
PXPerlDemo.exe
perl.ico
perl2.ico
perl3.ico
perlsistent.pl
PXPerlDemo.ico
PXPerlDemo.manifest
#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;
    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 */
};

/*--------------------------------------------------------------------------------------*/

/* 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 PerlIOBase(f)      (*(f))
#define PerlIOSelf(f,type) ((type *)PerlIOBase(f))
#define PerlIONext(f)      (&(PerlIOBase(f)->next))
#define PerlIOValid(f)     ((f) && *(f))

/*--------------------------------------------------------------------------------------*/
/* Data exports - EXT rather than extern is needed for Cygwin */
EXT PerlIO_funcs PerlIO_unix;
EXT PerlIO_funcs PerlIO_perlio;
EXT PerlIO_funcs PerlIO_stdio;
EXT PerlIO_funcs PerlIO_crlf;
EXT PerlIO_funcs PerlIO_utf8;
EXT PerlIO_funcs PerlIO_byte;
EXT PerlIO_funcs PerlIO_raw;
EXT PerlIO_funcs PerlIO_pending;
#ifdef HAS_MMAP
EXT PerlIO_funcs PerlIO_mmap;
#endif
#ifdef WIN32
EXT PerlIO_funcs PerlIO_win32;
#endif
extern PerlIO *PerlIO_allocate(pTHX);
extern 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

/*--------------------------------------------------------------------------------------*/
/* Generic, or stub layer functions */

extern IV PerlIOBase_fileno(pTHX_ PerlIO *f);
extern PerlIO *PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
extern IV PerlIOBase_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
extern IV PerlIOBase_popped(pTHX_ PerlIO *f);
extern IV PerlIOBase_binmode(pTHX_ PerlIO *f);
extern SSize_t PerlIOBase_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
extern SSize_t PerlIOBase_unread(pTHX_ PerlIO *f, const void *vbuf,
				 Size_t count);
extern IV PerlIOBase_eof(pTHX_ PerlIO *f);
extern IV PerlIOBase_error(pTHX_ PerlIO *f);
extern void PerlIOBase_clearerr(pTHX_ PerlIO *f);
extern IV PerlIOBase_close(pTHX_ PerlIO *f);
extern void PerlIOBase_setlinebuf(pTHX_ PerlIO *f);
extern void PerlIOBase_flush_linebuf(pTHX);

extern IV PerlIOBase_noop_ok(pTHX_ PerlIO *f);
extern IV PerlIOBase_noop_fail(pTHX_ PerlIO *f);

/*--------------------------------------------------------------------------------------*/
/* 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;

extern int PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode,
		    PerlIO_list_t *layers, IV n, IV max);
extern int PerlIO_parse_layers(pTHX_ PerlIO_list_t *av, const char *names);
extern void PerlIO_list_free(pTHX_ PerlIO_list_t *list);
extern PerlIO_funcs *PerlIO_layer_fetch(pTHX_ PerlIO_list_t *av, IV n, PerlIO_funcs *def);


extern SV *PerlIO_sv_dup(pTHX_ SV *arg, CLONE_PARAMS *param);
extern 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);
extern IV PerlIOBuf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab);
extern IV PerlIOBuf_popped(pTHX_ PerlIO *f);
extern PerlIO *PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags);
extern SSize_t PerlIOBuf_read(pTHX_ PerlIO *f, void *vbuf, Size_t count);
extern SSize_t PerlIOBuf_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
extern SSize_t PerlIOBuf_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count);
extern IV PerlIOBuf_seek(pTHX_ PerlIO *f, Off_t offset, int whence);
extern Off_t PerlIOBuf_tell(pTHX_ PerlIO *f);
extern IV PerlIOBuf_close(pTHX_ PerlIO *f);
extern IV PerlIOBuf_flush(pTHX_ PerlIO *f);
extern IV PerlIOBuf_fill(pTHX_ PerlIO *f);
extern STDCHAR *PerlIOBuf_get_base(pTHX_ PerlIO *f);
extern Size_t PerlIOBuf_bufsiz(pTHX_ PerlIO *f);
extern STDCHAR *PerlIOBuf_get_ptr(pTHX_ PerlIO *f);
extern SSize_t PerlIOBuf_get_cnt(pTHX_ PerlIO *f);
extern void PerlIOBuf_set_ptrcnt(pTHX_ PerlIO *f, STDCHAR * ptr, SSize_t cnt);

extern int PerlIOUnix_oflags(const char *mode);

/*--------------------------------------------------------------------------------------*/

#endif				/* _PERLIOL_H */

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About the Author

PixiGreg
Software Developer
France France
Bouh

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