1 /* $OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 guenther Exp $ */
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
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11 * modification, are permitted provided that the following conditions
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.
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
36 * Information local to this implementation of stdio,
37 * in particular, macros and private variables.
45 int __sflush(LTTNG_UST_LFILE
*);
46 LTTNG_UST_LFILE
*__sfp(void);
47 int __srefill(LTTNG_UST_LFILE
*);
48 int __sread(void *, char *, int);
49 int __swrite(void *, const char *, int);
50 fpos_t __sseek(void *, fpos_t, int);
54 void __smakebuf(LTTNG_UST_LFILE
*);
55 int __swhatbuf(LTTNG_UST_LFILE
*, size_t *, int *);
56 int _fwalk(int (*)(LTTNG_UST_LFILE
*));
57 int __swsetup(LTTNG_UST_LFILE
*);
58 int __sflags(const char *, int *);
59 wint_t __fgetwc_unlock(LTTNG_UST_LFILE
*);
61 extern void __atexit_register_cleanup(void (*)(void));
62 extern int __sdidinit
;
65 * Return true if the given LTTNG_UST_LFILE cannot be written now.
67 #define cantwrite(fp) \
68 ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
72 * Test whether the given stdio file has an active ungetc buffer;
73 * release such a buffer, without restoring ordinary unread data.
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; \
83 * test for an fgetln() buffer.
85 #define HASLB(fp) ((fp)->_lb._base != NULL)
86 #define FREELB(fp) { \
87 free((char *)(fp)->_lb._base); \
88 (fp)->_lb._base = NULL; \
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