2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
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9 * modification, are permitted provided that the following conditions
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18 * This product includes software developed by the University of
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36 * @(#)local.h 8.3 (Berkeley) 7/3/94
38 * $FreeBSD: src/lib/libc/stdio/local.h,v 1.1.1.2.6.1 2001/03/05 11:27:49 obrien Exp $
39 * $DragonFly: src/lib/libc/stdio/local.h,v 1.10 2005/12/20 00:21:53 davidxu Exp $
42 #include <sys/types.h> /* for off_t */
43 #include <wchar.h> /* for wchar_t */
45 #ifndef _MACHINE_STDINT_H_
46 #include <machine/stdint.h> /* __size_t */
50 * Information local to this implementation of stdio,
51 * in particular, macros and private variables.
54 extern int __slbexpand(FILE *, size_t);
55 extern int __sflush (FILE *);
56 extern FILE *__sfp (void);
57 extern int __srefill (FILE *);
58 extern int __sread (void *, char *, int);
59 extern int __swrite (void *, char const *, int);
60 extern fpos_t __sseek (void *, fpos_t, int);
61 extern int __sclose (void *);
62 extern void __sinit (void);
63 extern void _cleanup (void);
64 extern void (*__cleanup) (void);
65 extern void __smakebuf (FILE *);
66 extern int __swhatbuf (FILE *, __size_t *, int *);
67 extern int _fwalk (int (*)(FILE *));
68 extern int __swsetup (FILE *);
69 extern int __sflags (const char *, int *);
70 extern int __vfprintf(FILE *, const char *, __va_list);
71 extern wint_t __fgetwc_unlock(FILE *);
72 extern wint_t __fputwc_unlock(wchar_t, FILE *);
73 extern int __vfwprintf_unlocked(FILE *, const wchar_t *, __va_list);
74 extern size_t __fread(void *buf, size_t size, size_t count, FILE *fp);
76 extern int __sdidinit;
79 * Return true iff the given FILE cannot be written now.
81 #define cantwrite(fp) \
82 ((((fp)->pub._flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
86 * Test whether the given stdio file has an active ungetc buffer;
87 * release such a buffer, without restoring ordinary unread data.
89 #define HASUB(fp) ((fp)->_ub._base != NULL)
90 #define FREEUB(fp) { \
91 if ((fp)->_ub._base != (fp)->_ubuf) \
92 free((char *)(fp)->_ub._base); \
93 (fp)->_ub._base = NULL; \
97 * test for an fgetln() buffer.
99 #define HASLB(fp) ((fp)->_lb._base != NULL)
100 #define FREELB(fp) { \
101 free((char *)(fp)->_lb._base); \
102 (fp)->_lb._base = NULL; \