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/* $OpenBSD: local.h,v 1.25 2016/05/23 00:21:48 guenther Exp $ */
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Chris Torek.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Information local to this implementation of stdio,
* in particular, macros and private variables.
*/
#include <wchar.h>
#include "wcio.h"
#include "fileext.h"
#include "thread_private.h"
__BEGIN_HIDDEN_DECLS
void _cleanup(void);
int _fwalk(int (*)(FILE *));
int __sflush(FILE *);
int __sflush_locked(FILE *);
FILE *__sfp(void);
int __srefill(FILE *);
int __sread(void *, char *, int);
int __swrite(void *, const char *, int);
fpos_t __sseek(void *, fpos_t, int);
int __sclose(void *);
void __sinit(void);
void __smakebuf(FILE *);
int __swhatbuf(FILE *, size_t *, int *);
int __swsetup(FILE *);
int __sflags(const char *, int *);
wint_t __fgetwc_unlock(FILE *);
wint_t __ungetwc(wint_t, FILE *);
int __vfprintf(FILE *, const char *, __va_list);
int __svfscanf(FILE * __restrict, const char * __restrict, __va_list);
int __vfwprintf(FILE * __restrict, const wchar_t * __restrict, __va_list);
int __vfwscanf(FILE * __restrict, const wchar_t * __restrict, __va_list);
extern int __sdidinit;
__END_HIDDEN_DECLS
/*
* Return true if the given FILE cannot be written now.
*/
#define cantwrite(fp) \
((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
__swsetup(fp))
/*
* Test whether the given stdio file has an active ungetc buffer;
* release such a buffer, without restoring ordinary unread data.
*/
#define HASUB(fp) (_UB(fp)._base != NULL)
#define FREEUB(fp) { \
if (_UB(fp)._base != (fp)->_ubuf) \
free(_UB(fp)._base); \
_UB(fp)._base = NULL; \
}
/*
* test for an fgetln() buffer.
*/
#define HASLB(fp) ((fp)->_lb._base != NULL)
#define FREELB(fp) { \
free((char *)(fp)->_lb._base); \
(fp)->_lb._base = NULL; \
}
#define FLOCKFILE(fp) \
do { \
if (_thread_cb.tc_flockfile != NULL) \
_thread_cb.tc_flockfile(fp); \
} while (0)
#define FUNLOCKFILE(fp) \
do { \
if (_thread_cb.tc_funlockfile != NULL) \
_thread_cb.tc_funlockfile(fp); \
} while (0)
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