| /* $OpenBSD: wcio.h,v 1.2 2013/04/17 17:40:35 tedu Exp $ */ |
| /* $NetBSD: wcio.h,v 1.3 2003/01/18 11:30:00 thorpej Exp $ */ |
| |
| /*- |
| * Copyright (c)2001 Citrus Project, |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * $Citrus$ |
| */ |
| |
| #ifndef _WCIO_H_ |
| #define _WCIO_H_ |
| |
| #include <sys/cdefs.h> |
| |
| __BEGIN_DECLS |
| |
| /* minimal requirement of SUSv2 */ |
| #define WCIO_UNGETWC_BUFSIZE 1 |
| |
| struct wchar_io_data { |
| mbstate_t wcio_mbstate_in; |
| mbstate_t wcio_mbstate_out; |
| |
| wchar_t wcio_ungetwc_buf[WCIO_UNGETWC_BUFSIZE]; |
| size_t wcio_ungetwc_inbuf; |
| |
| int wcio_mode; /* orientation */ |
| }; |
| |
| #define WCIO_GET(fp) \ |
| (_EXT(fp) ? &(_EXT(fp)->_wcio) : (struct wchar_io_data *)0) |
| |
| #define _SET_ORIENTATION(fp, mode) \ |
| do {\ |
| struct wchar_io_data *_wcio = WCIO_GET(fp); \ |
| if (_wcio && _wcio->wcio_mode == 0) \ |
| _wcio->wcio_mode = (mode);\ |
| } while (0) |
| |
| /* |
| * WCIO_FREE should be called by fclose |
| */ |
| #define WCIO_FREE(fp) \ |
| do {\ |
| struct wchar_io_data *_wcio = WCIO_GET(fp); \ |
| if (_wcio) { \ |
| _wcio->wcio_mode = 0;\ |
| _wcio->wcio_ungetwc_inbuf = 0;\ |
| } \ |
| } while (0) |
| |
| #define WCIO_FREEUB(fp) \ |
| do {\ |
| struct wchar_io_data *_wcio = WCIO_GET(fp); \ |
| if (_wcio) { \ |
| _wcio->wcio_ungetwc_inbuf = 0;\ |
| } \ |
| } while (0) |
| |
| #define WCIO_INIT(fp) \ |
| memset(&(_EXT(fp)->_wcio), 0, sizeof(struct wchar_io_data)) |
| |
| __END_DECLS |
| |
| #endif /*_WCIO_H_*/ |