[lttng-ust.git] / snprintf / local.h

/*	$OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 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 "various.h"
#include "wcio.h"
#include "fileext.h"

int	__sflush(LFILE *);
LFILE	*__sfp(void);
int	__srefill(LFILE *);
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	_cleanup(void);
void	__smakebuf(LFILE *);
int	__swhatbuf(LFILE *, size_t *, int *);
int	_fwalk(int (*)(LFILE *));
int	__swsetup(LFILE *);
int	__sflags(const char *, int *);
wint_t __fgetwc_unlock(LFILE *);

extern void __atexit_register_cleanup(void (*)(void));
extern int __sdidinit;

/*
 * Return true if the given LFILE 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; \
}
Commit	Line	Data
bf0d695d PMF	1	/* $OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 guenther Exp $ */
	2
	3	/*-
	4	* Copyright (c) 1990, 1993
	5	* The Regents of the University of California. All rights reserved.
	6	*
	7	* This code is derived from software contributed to Berkeley by
	8	* Chris Torek.
	9	*
	10	* Redistribution and use in source and binary forms, with or without
	11	* modification, are permitted provided that the following conditions
	12	* are met:
	13	* 1. Redistributions of source code must retain the above copyright
	14	* notice, this list of conditions and the following disclaimer.
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in the
	17	* documentation and/or other materials provided with the distribution.
	18	* 3. Neither the name of the University nor the names of its contributors
	19	* may be used to endorse or promote products derived from this software
	20	* without specific prior written permission.
	21	*
	22	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	23	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	24	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	25	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	26	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	27	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	28	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	29	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	30	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	31	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	32	* SUCH DAMAGE.
	33	*/
	34
	35	/*
	36	* Information local to this implementation of stdio,
	37	* in particular, macros and private variables.
	38	*/
	39
	40	#include <wchar.h>
	41	#include "various.h"
	42	#include "wcio.h"
	43	#include "fileext.h"
	44
c9e31458 MD	45	int __sflush(LFILE *);
	46	LFILE *__sfp(void);
	47	int __srefill(LFILE *);
bf0d695d PMF	48	int __sread(void , char , int);
	49	int __swrite(void , const char , int);
	50	fpos_t __sseek(void *, fpos_t, int);
	51	int __sclose(void *);
	52	void __sinit(void);
	53	void _cleanup(void);
c9e31458 MD	54	void __smakebuf(LFILE *);
	55	int __swhatbuf(LFILE , size_t , int *);
	56	int _fwalk(int ()(LFILE ));
	57	int __swsetup(LFILE *);
bf0d695d	58	int __sflags(const char , int );
c9e31458	59	wint_t __fgetwc_unlock(LFILE *);
bf0d695d PMF	60
	61	extern void __atexit_register_cleanup(void (*)(void));
	62	extern int __sdidinit;
	63
	64	/*
c9e31458	65	* Return true if the given LFILE cannot be written now.
bf0d695d PMF	66	*/
	67	#define cantwrite(fp) \
	68	((((fp)->_flags & __SWR) == 0 \|\| (fp)->_bf._base == NULL) && \
	69	__swsetup(fp))
	70
	71	/*
	72	* Test whether the given stdio file has an active ungetc buffer;
	73	* release such a buffer, without restoring ordinary unread data.
	74	*/
	75	#define HASUB(fp) (_UB(fp)._base != NULL)
	76	#define FREEUB(fp) { \
	77	if (_UB(fp)._base != (fp)->_ubuf) \
	78	free(_UB(fp)._base); \
	79	_UB(fp)._base = NULL; \
	80	}
	81
	82	/*
	83	* test for an fgetln() buffer.
	84	*/
	85	#define HASLB(fp) ((fp)->_lb._base != NULL)
	86	#define FREELB(fp) { \
	87	free((char *)(fp)->_lb._base); \
	88	(fp)->_lb._base = NULL; \
	89	}