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newlib-cygwin/newlib/libc/stdio/local.h
Jeff Johnston 0751f22675 2008-12-10 Corinna Vinschen <corinna@vinschen.de> 
Implement basic wide char stdio functionality, based on FreeBSD.
        * libc/include/stdio.h (__SORD): Define.
        (__SWID): Define.
        * libc/include/wchar.h: Add declarations for new wide char functions.
        (getwc): Define as macro.
        (getwchar): Ditto.
        (putwc): Ditto.
        (putwchar): Ditto.
        * libc/include/sys/reent.h (struct __sFILE): Add _mbstate member.
        (struct __sFILE64): Ditto.
        * libc/stdio/Makefile.am (ELIX_4_SOURCES): Add fgetwc.c, fgetws.c,
        fputwc.c, fputws.c, fwide.c, getwc.c, getwchar.c, putwc.c, putwchar.c
        and ungetwc.c.
        (CHEWOUT_FILES): Add fgetwc.def, fgetws.def, fputwc.def, fputws.def,
        fwide.def, getwc.def, getwchar.def, putwc.def, putwchar.def and
        ungetwc.def.
        Add header dependency rules for the new files.
        * libc/stdio/Makefile.in: Regenerate.
        * libc/stdio/fgetwc.c: New file, implementing fgetwc and _fgetwc_r.
        * libc/stdio/fgetws.c: New file, implementing fgetws and _fgetws_r.
        * libc/stdio/findfp.c (std): Initialize FILE's _mbstate member.
        (__sfmoreglue): Ditto.
        * libc/stdio/fputs.c (_fputs_r): Set stream orientation.
        * libc/stdio/fputwc.c: New file, implementing fputwc and _fputwc_r.
        * libc/stdio/fputws.c: New file, implementing fputws and _fputws_r.
        * libc/stdio/fread.c (_fread_r): Set stream orientation.
        * libc/stdio/freopen.c (_freopen_r): Reset stream orientation.  Reset
        _mbstate.
        * libc/stdio/fseek.c (_fseek_r): Reset _mbstate.
        * libc/stdio/fwide.c: New file, implementing fwide and _fwide_r.
        * libc/stdio/fwrite.c (_fwrite_r): Set stream orientation.
        * libc/stdio/getwc.c: New file, implementing getwc and _getwc_r.
        * libc/stdio/getwchar.c: New file, implementing getwchar and
        _getwchar_r.
        * libc/stdio/local.h (ORIENT): New macro.
        * libc/stdio/puts.c (_puts_r): Set stream orientation.
        * libc/stdio/putwc.c: New file, implementing putwc and _putwc_r.
        * libc/stdio/putwchar.c: New file, implementing putwchar and
        _putwchar_r.
        * libc/stdio/refill.c (__srefill_r): Set stream orientation.
        * libc/stdio/stdio.tex: Add documentation for new functions.
        * libc/stdio/ungetc.c (_ungetc_r): Set stream orientation.
        * libc/stdio/ungetwc.c: New file, implementing ungetwc and _ungetwc_r.
        * libc/stdio/vfscanf.c (__SVFSCANF_R): Set stream orientation.
        * libc/stdio/wbuf.c (__swbuf_r): Ditto.
2008-12-10 23:43:12 +00:00

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/*
* Copyright (c) 1990, 2007 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* %W% (UofMD/Berkeley) %G%
*/
/*
* Information local to this implementation of stdio,
* in particular, macros and private variables.
*/
#include <_ansi.h>
#include <reent.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#ifdef __SCLE
# include <io.h>
#endif
extern int _EXFUN(__svfscanf_r,(struct _reent *,FILE *, _CONST char *,va_list));
extern int _EXFUN(__ssvfscanf_r,(struct _reent *,FILE *, _CONST char *,va_list));
extern int _EXFUN(__svfiscanf_r,(struct _reent *,FILE *, _CONST char *,va_list));
extern int _EXFUN(__ssvfiscanf_r,(struct _reent *,FILE *, _CONST char *,va_list));
int _EXFUN(_svfprintf_r,(struct _reent *, FILE *, const char *,
va_list)
_ATTRIBUTE ((__format__ (__printf__, 3, 0))));
int _EXFUN(_svfiprintf_r,(struct _reent *, FILE *, const char *,
va_list)
_ATTRIBUTE ((__format__ (__printf__, 3, 0))));
extern FILE *_EXFUN(__sfp,(struct _reent *));
extern int _EXFUN(__sflags,(struct _reent *,_CONST char*, int*));
extern int _EXFUN(__srefill_r,(struct _reent *,FILE *));
extern _READ_WRITE_RETURN_TYPE _EXFUN(__sread,(struct _reent *, void *, char *,
int));
extern _READ_WRITE_RETURN_TYPE _EXFUN(__swrite,(struct _reent *, void *,
const char *, int));
extern _fpos_t _EXFUN(__sseek,(struct _reent *, void *, _fpos_t, int));
extern int _EXFUN(__sclose,(struct _reent *, void *));
extern int _EXFUN(__stextmode,(int));
extern _VOID _EXFUN(__sinit,(struct _reent *));
extern _VOID _EXFUN(_cleanup_r,(struct _reent *));
extern _VOID _EXFUN(__smakebuf_r,(struct _reent *, FILE *));
extern int _EXFUN(_fwalk,(struct _reent *, int (*)(FILE *)));
extern int _EXFUN(_fwalk_reent,(struct _reent *, int (*)(struct _reent *, FILE *)));
struct _glue * _EXFUN(__sfmoreglue,(struct _reent *,int n));
extern int _EXFUN(__submore, (struct _reent *, FILE *));
#ifdef __LARGE64_FILES
extern _fpos64_t _EXFUN(__sseek64,(struct _reent *, void *, _fpos64_t, int));
extern _READ_WRITE_RETURN_TYPE _EXFUN(__swrite64,(struct _reent *, void *,
const char *, int));
#endif
/* Called by the main entry point fns to ensure stdio has been initialized. */
#ifdef _REENT_SMALL
#define CHECK_INIT(ptr, fp) \
do \
{ \
if ((ptr) && !(ptr)->__sdidinit) \
__sinit (ptr); \
if ((fp) == (FILE *)&__sf_fake_stdin) \
(fp) = _stdin_r(ptr); \
else if ((fp) == (FILE *)&__sf_fake_stdout) \
(fp) = _stdout_r(ptr); \
else if ((fp) == (FILE *)&__sf_fake_stderr) \
(fp) = _stderr_r(ptr); \
} \
while (0)
#else /* !_REENT_SMALL */
#define CHECK_INIT(ptr, fp) \
do \
{ \
if ((ptr) && !(ptr)->__sdidinit) \
__sinit (ptr); \
} \
while (0)
#endif /* !_REENT_SMALL */
#define CHECK_STD_INIT(ptr) \
do \
{ \
if ((ptr) && !(ptr)->__sdidinit) \
__sinit (ptr); \
} \
while (0)
/* Return true iff the given FILE cannot be written now. */
#define cantwrite(ptr, fp) \
((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
__swsetup_r(ptr, fp))
/* Test whether the given stdio file has an active ungetc buffer;
release such a buffer, without restoring ordinary unread data. */
#define HASUB(fp) ((fp)->_ub._base != NULL)
#define FREEUB(ptr, fp) { \
if ((fp)->_ub._base != (fp)->_ubuf) \
_free_r(ptr, (char *)(fp)->_ub._base); \
(fp)->_ub._base = NULL; \
}
/* Test for an fgetline() buffer. */
#define HASLB(fp) ((fp)->_lb._base != NULL)
#define FREELB(ptr, fp) { _free_r(ptr,(char *)(fp)->_lb._base); \
(fp)->_lb._base = NULL; }
/*
* Set the orientation for a stream. If o > 0, the stream has wide-
* orientation. If o < 0, the stream has byte-orientation.
*/
#define ORIENT(fp,ori) \
do \
{ \
if (!((fp)->_flags & __SORD)) \
{ \
(fp)->_flags |= __SORD; \
if (ori > 0) \
(fp)->_flags2 |= __SWID; \
else \
(fp)->_flags2 &= ~__SWID; \
} \
} \
while (0)
/* WARNING: _dcvt is defined in the stdlib directory, not here! */
char *_EXFUN(_dcvt,(struct _reent *, char *, double, int, int, char, int));
char *_EXFUN(_sicvt,(char *, short, char));
char *_EXFUN(_icvt,(char *, int, char));
char *_EXFUN(_licvt,(char *, long, char));
#ifdef __GNUC__
char *_EXFUN(_llicvt,(char *, long long, char));
#endif
#define CVT_BUF_SIZE 128
#define NDYNAMIC 4 /* add four more whenever necessary */
#ifdef __SINGLE_THREAD__
#define __sfp_lock_acquire()
#define __sfp_lock_release()
#define __sinit_lock_acquire()
#define __sinit_lock_release()
#else
_VOID _EXFUN(__sfp_lock_acquire,(_VOID));
_VOID _EXFUN(__sfp_lock_release,(_VOID));
_VOID _EXFUN(__sinit_lock_acquire,(_VOID));
_VOID _EXFUN(__sinit_lock_release,(_VOID));
#endif
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