projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| bf0d695d PMF |
1 | /* $OpenBSD: wcio.h,v 1.1 2005/06/17 20:40:32 espie Exp $ */ |
| 2 | /* $NetBSD: wcio.h,v 1.3 2003/01/18 11:30:00 thorpej Exp $ */ | |
| 3 | ||
| 4 | /*- | |
| 5 | * Copyright (c)2001 Citrus Project, | |
| 6 | * All rights reserved. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| 16 | * | |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 | * SUCH DAMAGE. | |
| 28 | * | |
| 29 | * $Citrus$ | |
| 30 | */ | |
| 31 | ||
| 32 | #ifndef _WCIO_H_ | |
| 33 | #define _WCIO_H_ | |
| 34 | ||
| 35 | /* minimal requirement of SUSv2 */ | |
| 36 | #define WCIO_UNGETWC_BUFSIZE 1 | |
| 37 | ||
| 38 | struct wchar_io_data { | |
| 39 | mbstate_t wcio_mbstate_in; | |
| 40 | mbstate_t wcio_mbstate_out; | |
| 41 | ||
| 42 | wchar_t wcio_ungetwc_buf[WCIO_UNGETWC_BUFSIZE]; | |
| 43 | size_t wcio_ungetwc_inbuf; | |
| 44 | ||
| 45 | int wcio_mode; /* orientation */ | |
| 46 | }; | |
| 47 | ||
| 48 | #define WCIO_GET(fp) \ | |
| 49 | (_EXT(fp) ? &(_EXT(fp)->_wcio) : (struct wchar_io_data *)0) | |
| 50 | ||
| 240578ad PMF |
51 | #define WCIO_GET_NONULL(fp) \ |
| 52 | (&(_EXT(fp)->_wcio)) | |
| 53 | ||
| bf0d695d PMF |
54 | #define _SET_ORIENTATION(fp, mode) \ |
| 55 | do {\ | |
| 56 | struct wchar_io_data *_wcio = WCIO_GET(fp); \ | |
| 57 | if (_wcio && _wcio->wcio_mode == 0) \ | |
| 58 | _wcio->wcio_mode = (mode);\ | |
| 59 | } while (0) | |
| 60 | ||
| 61 | /* | |
| 62 | * WCIO_FREE should be called by fclose | |
| 63 | */ | |
| 64 | #define WCIO_FREE(fp) \ | |
| 65 | do {\ | |
| 66 | struct wchar_io_data *_wcio = WCIO_GET(fp); \ | |
| 67 | if (_wcio) { \ | |
| 68 | _wcio->wcio_mode = 0;\ | |
| 69 | _wcio->wcio_ungetwc_inbuf = 0;\ | |
| 70 | } \ | |
| 71 | } while (0) | |
| 72 | ||
| 73 | #define WCIO_FREEUB(fp) \ | |
| 74 | do {\ | |
| 75 | struct wchar_io_data *_wcio = WCIO_GET(fp); \ | |
| 76 | if (_wcio) { \ | |
| 77 | _wcio->wcio_ungetwc_inbuf = 0;\ | |
| 78 | } \ | |
| 79 | } while (0) | |
| 80 | ||
| 81 | #define WCIO_INIT(fp) \ | |
| 240578ad | 82 | memset(WCIO_GET_NONULL(fp), 0, sizeof(struct wchar_io_data)) |
| bf0d695d PMF |
83 | |
| 84 | #endif /*_WCIO_H_*/ |