fileext.h revision 1.1.2.4
1 1.1.2.4 nathanw /* $NetBSD: fileext.h,v 1.1.2.4 2002/02/07 20:40:33 nathanw Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /*- 4 1.1.2.2 nathanw * Copyright (c)2001 Citrus Project, 5 1.1.2.2 nathanw * All rights reserved. 6 1.1.2.2 nathanw * 7 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 9 1.1.2.2 nathanw * are met: 10 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 15 1.1.2.2 nathanw * 16 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 1.1.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 1.1.2.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 1.1.2.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 1.1.2.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.1.2.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 1.1.2.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.1.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.1.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.1.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.1.2.2 nathanw * SUCH DAMAGE. 27 1.1.2.2 nathanw * 28 1.1.2.2 nathanw * $Citrus$ 29 1.1.2.2 nathanw */ 30 1.1.2.2 nathanw 31 1.1.2.2 nathanw /* 32 1.1.2.2 nathanw * file extension 33 1.1.2.2 nathanw */ 34 1.1.2.2 nathanw struct __sfileext { 35 1.1.2.2 nathanw struct __sbuf _ub; /* ungetc buffer */ 36 1.1.2.2 nathanw struct wchar_io_data _wcio; /* wide char i/o status */ 37 1.1.2.3 nathanw #ifdef _REENTRANT 38 1.1.2.3 nathanw mutex_t _lock; /* Lock for FLOCKFILE/FUNLOCKFILE */ 39 1.1.2.3 nathanw cond_t _lockcond; /* Condition variable for signalling lock releases */ 40 1.1.2.3 nathanw thr_t _lockowner; /* The thread currently holding the lock */ 41 1.1.2.3 nathanw int _lockcount; /* Count of recursive locks */ 42 1.1.2.3 nathanw #endif 43 1.1.2.2 nathanw }; 44 1.1.2.2 nathanw 45 1.1.2.2 nathanw #define _EXT(fp) ((struct __sfileext *)(void *)((fp)->_ext._base)) 46 1.1.2.2 nathanw #define _UB(fp) _EXT(fp)->_ub 47 1.1.2.4 nathanw #ifdef _REENTRANT 48 1.1.2.3 nathanw #define _LOCK(fp) (_EXT(fp)->_lock) 49 1.1.2.3 nathanw #define _LOCKCOND(fp) (_EXT(fp)->_lockcond) 50 1.1.2.3 nathanw #define _LOCKOWNER(fp) (_EXT(fp)->_lockowner) 51 1.1.2.3 nathanw #define _LOCKCOUNT(fp) (_EXT(fp)->_lockcount) 52 1.1.2.4 nathanw #define _FILEEXT_SETUP(f, fext) do { \ 53 1.1.2.4 nathanw /* LINTED */(f)->_ext._base = (unsigned char *)(fext); \ 54 1.1.2.4 nathanw mutex_init(&_LOCK(f), NULL); \ 55 1.1.2.4 nathanw cond_init(&_LOCKCOND(f), 0, NULL); \ 56 1.1.2.4 nathanw _LOCKOWNER(f) = NULL; \ 57 1.1.2.4 nathanw _LOCKCOUNT(f) = 0; \ 58 1.1.2.4 nathanw } while (/* LINTED */ 0) 59 1.1.2.4 nathanw #else 60 1.1.2.4 nathanw #define _FILEEXT_SETUP(f, fext) /* LINTED */(f)->_ext._base = (unsigned char *)(fext) 61 1.1.2.4 nathanw #endif 62
Indexes created Sun Sep 21 20:09:37 GMT 2025