X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=perlio.h;h=78bd06ab05fa3e7b195d74fa55e448182b1b7ddc;hb=333b7451c3645c70d019a85ff880dce1977c7857;hp=bdf59d78be8c75bf05c77f7ae355741fc3fbd339;hpb=760ac839baf413929cd31cc32ffd6dba6b781a81;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/perlio.h b/perlio.h
index bdf59d7..78bd06a 100644
--- a/perlio.h
+++ b/perlio.h
@@ -1,24 +1,149 @@
-#ifndef H_PERLIO
-#define H_PERLIO 1
+#ifndef _PERLIO_H
+#define _PERLIO_H
+/*
+  Interface for perl to IO functions.
+  There is a hierachy of Configure determined #define controls:
+   USE_STDIO   - forces PerlIO_xxx() to be #define-d onto stdio functions.
+                 This is used for x2p subdirectory and for conservative
+                 builds - "just like perl5.00X used to be".
+                 This dominates over the others.
+
+   USE_PERLIO  - The primary Configure variable that enables PerlIO.
+                 If USE_PERLIO is _NOT_ set
+                   then USE_STDIO above will be set to be conservative.
+                 If USE_PERLIO is set
+                   then there are two modes determined by USE_SFIO:
+
+   USE_SFIO    - If set causes PerlIO_xxx() to be #define-d onto sfio functions.
+                 A backward compatability mode for some specialist applications.
+
+                 If USE_SFIO is not set then PerlIO_xxx() are real functions
+                 defined in perlio.c which implement extra functionality
+                 required for utf8 support.
+
+   One further note - the table-of-functions scheme controlled
+   by PERL_IMPLICIT_SYS turns on USE_PERLIO so that iperlsys.h can
+   #define PerlIO_xxx() to go via the function table, without having
+   to #undef them from (say) stdio forms.
+
+*/
+
+#if defined(PERL_IMPLICIT_SYS)
+#ifndef USE_PERLIO
+#ifndef NETWARE
+# define USE_PERLIO
+#endif
+#endif
+#endif
+
+#ifndef USE_PERLIO
+# define USE_STDIO
+#endif
 
-/* Allow -DUSE_STDIO to force the issue for x2p directory */
 #ifdef USE_STDIO
-#ifdef PERLIO_IS_STDIO
-#undef PERLIO_IS_STDIO
+#  ifndef PERLIO_IS_STDIO
+#      define PERLIO_IS_STDIO
+#  endif
 #endif
-#define PERLIO_IS_STDIO
-#else
-extern void PerlIO_init _((void));
+
+/* --------------------  End of Configure controls ---------------------------- */
+
+/*
+ * Although we may not want stdio to be used including <stdio.h> here
+ * avoids issues where stdio.h has strange side effects
+ */
+#include <stdio.h>
+
+#if defined(USE_64_BIT_STDIO) && defined(HAS_FTELLO) && !defined(USE_FTELL64)
+#define ftell ftello
 #endif
 
-#include "perlsdio.h"
+#if defined(USE_64_BIT_STDIO) && defined(HAS_FSEEKO) && !defined(USE_FSEEK64)
+#define fseek fseeko
+#endif
 
-#ifndef PERLIO_IS_STDIO
+#ifdef PERLIO_IS_STDIO
+/* #define PerlIO_xxxx() as equivalent stdio function */
+#include "perlsdio.h"
+#else  /* PERLIO_IS_STDIO */
 #ifdef USE_SFIO
+/* #define PerlIO_xxxx() as equivalent sfio function */
 #include "perlsfio.h"
 #endif /* USE_SFIO */
 #endif /* PERLIO_IS_STDIO */
 
+#ifndef PerlIO
+/* ----------- PerlIO implementation ---------- */
+/* PerlIO not #define-d to something else - define the implementation */
+
+typedef struct _PerlIO PerlIOl;
+typedef struct _PerlIO_funcs PerlIO_funcs;
+typedef PerlIOl *PerlIO;
+#define PerlIO PerlIO
+#define PERLIO_LAYERS 1
+
+extern void	PerlIO_define_layer	(pTHX_ PerlIO_funcs *tab);
+extern PerlIO_funcs *PerlIO_find_layer	(pTHX_ const char *name, STRLEN len, int load);
+extern PerlIO *	PerlIO_push		(pTHX_ PerlIO *f,PerlIO_funcs *tab,const char *mode,SV *arg);
+extern void	PerlIO_pop		(pTHX_ PerlIO *f);
+
+#endif /* PerlIO */
+
+/* ----------- End of implementation choices  ---------- */
+
+#ifndef PERLIO_IS_STDIO
+/* Not using stdio _directly_ as PerlIO */
+
+/* We now need to determine  what happens if source trys to use stdio.
+ * There are three cases based on PERLIO_NOT_STDIO which XS code
+ * can set how it wants.
+ */
+
+#ifdef PERL_CORE
+/* Make a choice for perl core code
+   - currently this is set to try and catch lingering raw stdio calls.
+     This is a known issue with some non UNIX ports which still use
+     "native" stdio features.
+*/
+#ifndef PERLIO_NOT_STDIO
+#define PERLIO_NOT_STDIO 1
+#endif
+#else
+#ifndef PERLIO_NOT_STDIO
+#define PERLIO_NOT_STDIO 0
+#endif
+#endif
+
+#ifdef PERLIO_NOT_STDIO
+#if PERLIO_NOT_STDIO
+/*
+ * PERLIO_NOT_STDIO #define'd as 1
+ * Case 1: Strong denial of stdio - make all stdio calls (we can think of) errors
+ */
+#include "nostdio.h"
+#else /* if PERLIO_NOT_STDIO */
+/*
+ * PERLIO_NOT_STDIO #define'd as 0
+ * Case 2: Declares that both PerlIO and stdio can be used
+ */
+#endif /* if PERLIO_NOT_STDIO */
+#else  /* ifdef PERLIO_NOT_STDIO */
+/*
+ * PERLIO_NOT_STDIO not defined
+ * Case 3: Try and fake stdio calls as PerlIO calls
+ */
+#include "fakesdio.h"
+#endif /* ifndef PERLIO_NOT_STDIO */
+#endif /* PERLIO_IS_STDIO */
+
+#define specialCopIO(sv) ((sv) != Nullsv)
+
+/* ----------- fill in things that have not got #define'd  ---------- */
+
+#ifndef Fpos_t
+#define Fpos_t Off_t
+#endif
+
 #ifndef EOF
 #define EOF (-1)
 #endif
@@ -40,14 +165,9 @@ extern void PerlIO_init _((void));
 #define SEEK_END 2
 #endif
 
-#ifndef PerlIO
-struct _PerlIO;
-#define PerlIO struct _PerlIO
-#endif /* No PerlIO */
+/* --------------------- Now prototypes for functions --------------- */
 
-#ifndef Fpos_t
-#define Fpos_t long
-#endif
+START_EXTERN_C
 
 #ifndef NEXT30_NO_ATTRIBUTE
 #ifndef HASATTRIBUTE       /* disable GNU-cc attribute checking? */
@@ -55,139 +175,176 @@ struct _PerlIO;
 #undef  __attribute__
 #endif
 #define __attribute__(attr)
-#endif 
+#endif
 #endif
 
+#ifndef PerlIO_init
+extern void	PerlIO_init		(void);
+#endif
 #ifndef PerlIO_stdoutf
-extern int	PerlIO_stdoutf		_((const char *,...))
-					__attribute__((format (printf, 1, 2)));
+extern int	PerlIO_stdoutf		(const char *,...)
+					__attribute__((__format__ (__printf__, 1, 2)));
 #endif
 #ifndef PerlIO_puts
-extern int	PerlIO_puts		_((PerlIO *,const char *));
+extern int	PerlIO_puts		(PerlIO *,const char *);
 #endif
 #ifndef PerlIO_open
-extern PerlIO *	PerlIO_open		_((const char *,const char *));
+extern PerlIO *	PerlIO_open		(const char *,const char *);
+#endif
+#ifndef PerlIO_openn
+extern PerlIO *	PerlIO_openn		(pTHX_ const char *layers, const char *mode,int fd,int imode,int perm,PerlIO *old,int narg,SV **arg);
 #endif
 #ifndef PerlIO_close
-extern int	PerlIO_close		_((PerlIO *));
+extern int	PerlIO_close		(PerlIO *);
 #endif
 #ifndef PerlIO_eof
-extern int	PerlIO_eof		_((PerlIO *));
+extern int	PerlIO_eof		(PerlIO *);
 #endif
 #ifndef PerlIO_error
-extern int	PerlIO_error		_((PerlIO *));
+extern int	PerlIO_error		(PerlIO *);
 #endif
 #ifndef PerlIO_clearerr
-extern void	PerlIO_clearerr		_((PerlIO *));
+extern void	PerlIO_clearerr		(PerlIO *);
 #endif
 #ifndef PerlIO_getc
-extern int	PerlIO_getc		_((PerlIO *));
+extern int	PerlIO_getc		(PerlIO *);
 #endif
 #ifndef PerlIO_putc
-extern int	PerlIO_putc		_((PerlIO *,int));
+extern int	PerlIO_putc		(PerlIO *,int);
 #endif
 #ifndef PerlIO_flush
-extern int	PerlIO_flush		_((PerlIO *));
+extern int	PerlIO_flush		(PerlIO *);
 #endif
 #ifndef PerlIO_ungetc
-extern int	PerlIO_ungetc		_((PerlIO *,int));
+extern int	PerlIO_ungetc		(PerlIO *,int);
 #endif
 #ifndef PerlIO_fileno
-extern int	PerlIO_fileno		_((PerlIO *));
+extern int	PerlIO_fileno		(PerlIO *);
 #endif
 #ifndef PerlIO_fdopen
-extern PerlIO *	PerlIO_fdopen		_((int, const char *));
+extern PerlIO *	PerlIO_fdopen		(int, const char *);
 #endif
 #ifndef PerlIO_importFILE
-extern PerlIO *	PerlIO_importFILE	_((FILE *,int));
+extern PerlIO *	PerlIO_importFILE	(FILE *,int);
 #endif
 #ifndef PerlIO_exportFILE
-extern FILE *	PerlIO_exportFILE	_((PerlIO *,int));
+extern FILE *	PerlIO_exportFILE	(PerlIO *,int);
 #endif
 #ifndef PerlIO_findFILE
-extern FILE *	PerlIO_findFILE		_((PerlIO *));
+extern FILE *	PerlIO_findFILE		(PerlIO *);
 #endif
 #ifndef PerlIO_releaseFILE
-extern void	PerlIO_releaseFILE	_((PerlIO *,FILE *));
+extern void	PerlIO_releaseFILE	(PerlIO *,FILE *);
 #endif
 #ifndef PerlIO_read
-extern int	PerlIO_read		_((PerlIO *,void *,size_t)); 
+extern SSize_t	PerlIO_read		(PerlIO *,void *,Size_t);
+#endif
+#ifndef PerlIO_unread
+extern SSize_t PerlIO_unread           (PerlIO *,const void *,Size_t);
 #endif
 #ifndef PerlIO_write
-extern int	PerlIO_write		_((PerlIO *,const void *,size_t)); 
+extern SSize_t	PerlIO_write		(PerlIO *,const void *,Size_t);
 #endif
 #ifndef PerlIO_setlinebuf
-extern void	PerlIO_setlinebuf	_((PerlIO *)); 
+extern void	PerlIO_setlinebuf	(PerlIO *);
 #endif
 #ifndef PerlIO_printf
-extern int	PerlIO_printf		_((PerlIO *, const char *,...))
-					__attribute__((format (printf, 2, 3))); 
+extern int	PerlIO_printf		(PerlIO *, const char *,...)
+					__attribute__((__format__ (__printf__, 2, 3)));
 #endif
 #ifndef PerlIO_sprintf
-extern int	PerlIO_sprintf		_((char *, int, const char *,...))
-					__attribute__((format (printf, 3, 4))); 
+extern int	PerlIO_sprintf		(char *, int, const char *,...)
+					__attribute__((__format__ (__printf__, 3, 4)));
 #endif
 #ifndef PerlIO_vprintf
-extern int	PerlIO_vprintf		_((PerlIO *, const char *, va_list)); 
+extern int	PerlIO_vprintf		(PerlIO *, const char *, va_list);
 #endif
 #ifndef PerlIO_tell
-extern long	PerlIO_tell		_((PerlIO *));
+extern Off_t	PerlIO_tell		(PerlIO *);
 #endif
 #ifndef PerlIO_seek
-extern int	PerlIO_seek		_((PerlIO *,off_t,int));
+extern int	PerlIO_seek		(PerlIO *, Off_t, int);
 #endif
 #ifndef PerlIO_rewind
-extern void	PerlIO_rewind		_((PerlIO *));
+extern void	PerlIO_rewind		(PerlIO *);
 #endif
 #ifndef PerlIO_has_base
-extern int	PerlIO_has_base		_((PerlIO *)); 
+extern int	PerlIO_has_base		(PerlIO *);
 #endif
 #ifndef PerlIO_has_cntptr
-extern int	PerlIO_has_cntptr	_((PerlIO *)); 
+extern int	PerlIO_has_cntptr	(PerlIO *);
 #endif
 #ifndef PerlIO_fast_gets
-extern int	PerlIO_fast_gets	_((PerlIO *)); 
+extern int	PerlIO_fast_gets	(PerlIO *);
 #endif
 #ifndef PerlIO_canset_cnt
-extern int	PerlIO_canset_cnt	_((PerlIO *)); 
+extern int	PerlIO_canset_cnt	(PerlIO *);
 #endif
 #ifndef PerlIO_get_ptr
-extern char *	PerlIO_get_ptr		_((PerlIO *)); 
+extern STDCHAR * PerlIO_get_ptr		(PerlIO *);
 #endif
 #ifndef PerlIO_get_cnt
-extern int	PerlIO_get_cnt		_((PerlIO *)); 
+extern int	PerlIO_get_cnt		(PerlIO *);
 #endif
 #ifndef PerlIO_set_cnt
-extern void	PerlIO_set_cnt		_((PerlIO *,int)); 
+extern void	PerlIO_set_cnt		(PerlIO *,int);
 #endif
 #ifndef PerlIO_set_ptrcnt
-extern void	PerlIO_set_ptrcnt	_((PerlIO *,char *,int)); 
+extern void	PerlIO_set_ptrcnt	(PerlIO *,STDCHAR *,int);
 #endif
 #ifndef PerlIO_get_base
-extern char *	PerlIO_get_base		_((PerlIO *)); 
+extern STDCHAR * PerlIO_get_base	(PerlIO *);
 #endif
 #ifndef PerlIO_get_bufsiz
-extern int	PerlIO_get_bufsiz	_((PerlIO *)); 
+extern int	PerlIO_get_bufsiz	(PerlIO *);
 #endif
 #ifndef PerlIO_tmpfile
-extern PerlIO *	PerlIO_tmpfile		_((void));
+extern PerlIO *	PerlIO_tmpfile		(void);
 #endif
 #ifndef PerlIO_stdin
-extern PerlIO *	PerlIO_stdin	_((void));
+extern PerlIO *	PerlIO_stdin		(void);
 #endif
 #ifndef PerlIO_stdout
-extern PerlIO *	PerlIO_stdout	_((void));
+extern PerlIO *	PerlIO_stdout		(void);
 #endif
 #ifndef PerlIO_stderr
-extern PerlIO *	PerlIO_stderr	_((void));
+extern PerlIO *	PerlIO_stderr		(void);
 #endif
 #ifndef PerlIO_getpos
-extern int	PerlIO_getpos		_((PerlIO *,Fpos_t *));
+extern int	PerlIO_getpos		(PerlIO *,SV *);
 #endif
 #ifndef PerlIO_setpos
-extern int	PerlIO_setpos		_((PerlIO *,const Fpos_t *));
-#endif 
-#endif /* Include guard */
+extern int	PerlIO_setpos		(PerlIO *,SV *);
+#endif
+#ifndef PerlIO_fdupopen
+extern PerlIO *	PerlIO_fdupopen		(pTHX_ PerlIO *);
+#endif
+#if !defined(PerlIO_modestr) && !defined(PERLIO_IS_STDIO)
+extern char *PerlIO_modestr		(PerlIO *,char *buf);
+#endif
+#ifndef PerlIO_isutf8
+extern int	PerlIO_isutf8		(PerlIO *);
+#endif
+#ifndef PerlIO_apply_layers
+extern int	PerlIO_apply_layers	(pTHX_ PerlIO *f, const char *mode, const char *names);
+#endif
+#ifndef PerlIO_binmode
+extern int	PerlIO_binmode		(pTHX_ PerlIO *f, int iotype, int omode, const char *names);
+#endif
+#ifndef PerlIO_getname
+extern char *  PerlIO_getname          (PerlIO *, char *);
+#endif
+
+extern void PerlIO_destruct(pTHX);
+
+#ifndef PERLIO_IS_STDIO
 
+extern void PerlIO_cleanup(void);
+
+extern void PerlIO_debug(const char *fmt,...);
+
+#endif
 
+END_EXTERN_C
 
+#endif /* _PERLIO_H */