Fix: pass private data to context callbacks
[lttng-ust.git] / snprintf / fileext.h
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1/* $OpenBSD: fileext.h,v 1.2 2005/06/17 20:40:32 espie Exp $ */
2/* $NetBSD: fileext.h,v 1.5 2003/07/18 21:46:41 nathanw Exp $ */
3
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4/*
5 * SPDX-License-Identifier: BSD-2-Clause
bf0d695d 6 *
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7 * Copyright (C)2001 Citrus Project,
8 * All rights reserved.
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9 *
10 * $Citrus$
11 */
12
13/*
14 * file extension
15 */
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16struct __lttng_ust_sfileext {
17 struct __lttng_ust_sbuf _ub; /* ungetc buffer */
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18 struct wchar_io_data _wcio; /* wide char io status */
19};
20
002e1fde 21#define _EXT(fp) ((struct __lttng_ust_sfileext *)((fp)->_ext._base))
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22#define _UB(fp) _EXT(fp)->_ub
23
24#define _FILEEXT_INIT(fp) \
25do { \
26 _UB(fp)._base = NULL; \
27 _UB(fp)._size = 0; \
28 WCIO_INIT(fp); \
29} while (0)
30
31#define _FILEEXT_SETUP(f, fext) \
32do { \
33 (f)->_ext._base = (unsigned char *)(fext); \
34 _FILEEXT_INIT(f); \
35} while (0)
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