152 lines
5.2 KiB
C
152 lines
5.2 KiB
C
/*-
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*
|
|
* @(#)local.h 8.3 (Berkeley) 7/3/94
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/types.h> /* for off_t */
|
|
#include <pthread.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
|
|
/*
|
|
* Information local to this implementation of stdio,
|
|
* in particular, macros and private variables.
|
|
*/
|
|
|
|
extern int _sread(FILE *, char *, int);
|
|
extern int _swrite(FILE *, char const *, int);
|
|
extern fpos_t _sseek(FILE *, fpos_t, int);
|
|
extern int _ftello(FILE *, fpos_t *);
|
|
extern int _fseeko(FILE *, off_t, int, int);
|
|
extern int __fflush(FILE *fp);
|
|
extern wint_t __fgetwc(FILE *);
|
|
extern wint_t __fputwc(wchar_t, FILE *);
|
|
extern int __sflush(FILE *);
|
|
extern FILE *__sfp(void);
|
|
extern int __srefill(FILE *);
|
|
extern int __sread(void *, char *, int);
|
|
extern int __swrite(void *, char const *, int);
|
|
extern fpos_t __sseek(void *, fpos_t, int);
|
|
extern int __sclose(void *);
|
|
extern void __sinit(void);
|
|
extern void _cleanup(void);
|
|
extern void (*__cleanup)(void);
|
|
extern void __smakebuf(FILE *);
|
|
extern int __swhatbuf(FILE *, size_t *, int *);
|
|
extern int _fwalk(int (*)(FILE *));
|
|
extern int __swsetup(FILE *);
|
|
extern int __sflags(const char *, int *);
|
|
extern int __ungetc(int, FILE *);
|
|
extern wint_t __ungetwc(wint_t, FILE *);
|
|
extern int __vfprintf(FILE *, const char *, __va_list);
|
|
extern int __vfwprintf(FILE *, const wchar_t *, __va_list);
|
|
|
|
extern int __sdidinit;
|
|
|
|
|
|
/* hold a buncha junk that would grow the ABI */
|
|
struct __sFILEX {
|
|
unsigned char *_up; /* saved _p when _p is doing ungetc data */
|
|
pthread_mutex_t fl_mutex; /* used for MT-safety */
|
|
pthread_t fl_owner; /* current owner */
|
|
int fl_count; /* recursive lock count */
|
|
int orientation; /* orientation for fwide() */
|
|
#ifdef notdef
|
|
/*
|
|
* XXX These are not used yet -- they will be used to store the
|
|
* multibyte conversion state for writing and reading when
|
|
* stateful encodings are supported by the locale framework.
|
|
*/
|
|
mbstate_t wstate; /* write conversion state */
|
|
mbstate_t rstate; /* read conversion state */
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* Return true iff the given FILE cannot be written now.
|
|
*/
|
|
#define cantwrite(fp) \
|
|
((((fp)->_flags & __SWR) == 0 || \
|
|
((fp)->_bf._base == NULL && ((fp)->_flags & __SSTR) == 0)) && \
|
|
__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) ((fp)->_ub._base != NULL)
|
|
#define FREEUB(fp) { \
|
|
if ((fp)->_ub._base != (fp)->_ubuf) \
|
|
free((char *)(fp)->_ub._base); \
|
|
(fp)->_ub._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 INITEXTRA(fp) { \
|
|
(fp)->_extra->_up = NULL; \
|
|
(fp)->_extra->fl_mutex = PTHREAD_MUTEX_INITIALIZER; \
|
|
(fp)->_extra->fl_owner = NULL; \
|
|
(fp)->_extra->fl_count = 0; \
|
|
(fp)->_extra->orientation = 0; \
|
|
/* memset(&(fp)->_extra->wstate, 0, sizeof(mbstate_t)); */ \
|
|
/* memset(&(fp)->_extra->rstate, 0, sizeof(mbstate_t)); */ \
|
|
}
|
|
|
|
/*
|
|
* 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, o) do { \
|
|
if ((fp)->_extra->orientation == 0) \
|
|
(fp)->_extra->orientation = (o); \
|
|
} while (0)
|
|
#ifdef FLOCKFILE
|
|
#define ORIENTLOCK(fp, o) do { \
|
|
FLOCKFILE(fp); \
|
|
ORIENT(fp, o); \
|
|
FUNLOCKFILE(fp); \
|
|
} while (0)
|
|
#endif
|