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1 | /* $OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 guenther Exp $ */ |
2 | ||
c0c0989a MJ |
3 | /* |
4 | * SPDX-License-Identifier: BSD-3-Clause | |
5 | * | |
6 | * Copyright (C) 1990, 1993 | |
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7 | * The Regents of the University of California. All rights reserved. |
8 | * | |
9 | * This code is derived from software contributed to Berkeley by | |
10 | * Chris Torek. | |
bf0d695d PMF |
11 | */ |
12 | ||
13 | /* | |
14 | * Information local to this implementation of stdio, | |
15 | * in particular, macros and private variables. | |
16 | */ | |
17 | ||
2786d9d5 FD |
18 | #include <stdio.h> |
19 | #include <wchar.h> | |
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20 | #include "various.h" |
21 | #include "wcio.h" | |
22 | #include "fileext.h" | |
23 | ||
002e1fde MD |
24 | int __sflush(LTTNG_UST_LFILE *); |
25 | LTTNG_UST_LFILE *__sfp(void); | |
26 | int __srefill(LTTNG_UST_LFILE *); | |
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27 | int __sread(void *, char *, int); |
28 | int __swrite(void *, const char *, int); | |
29 | fpos_t __sseek(void *, fpos_t, int); | |
30 | int __sclose(void *); | |
31 | void __sinit(void); | |
32 | void _cleanup(void); | |
002e1fde MD |
33 | void __smakebuf(LTTNG_UST_LFILE *); |
34 | int __swhatbuf(LTTNG_UST_LFILE *, size_t *, int *); | |
35 | int _fwalk(int (*)(LTTNG_UST_LFILE *)); | |
36 | int __swsetup(LTTNG_UST_LFILE *); | |
bf0d695d | 37 | int __sflags(const char *, int *); |
002e1fde | 38 | wint_t __fgetwc_unlock(LTTNG_UST_LFILE *); |
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39 | |
40 | extern void __atexit_register_cleanup(void (*)(void)); | |
41 | extern int __sdidinit; | |
42 | ||
43 | /* | |
002e1fde | 44 | * Return true if the given LTTNG_UST_LFILE cannot be written now. |
bf0d695d PMF |
45 | */ |
46 | #define cantwrite(fp) \ | |
47 | ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \ | |
48 | __swsetup(fp)) | |
49 | ||
50 | /* | |
51 | * Test whether the given stdio file has an active ungetc buffer; | |
52 | * release such a buffer, without restoring ordinary unread data. | |
53 | */ | |
54 | #define HASUB(fp) (_UB(fp)._base != NULL) | |
55 | #define FREEUB(fp) { \ | |
56 | if (_UB(fp)._base != (fp)->_ubuf) \ | |
57 | free(_UB(fp)._base); \ | |
58 | _UB(fp)._base = NULL; \ | |
59 | } | |
60 | ||
61 | /* | |
62 | * test for an fgetln() buffer. | |
63 | */ | |
64 | #define HASLB(fp) ((fp)->_lb._base != NULL) | |
65 | #define FREELB(fp) { \ | |
66 | free((char *)(fp)->_lb._base); \ | |
67 | (fp)->_lb._base = NULL; \ | |
68 | } |