168667c972
Various C and C++ standards explicitly say that stdin/stdout/stderr should be macros, but glibc makes them global variables too. This means it's possible to write code that uses those names as locals, but that code (toybox being an example) won't build on bionic. If we'd done this earlier, we could have hidden __sF for LP64, but it's too late now. Change-Id: I90cf8c73f52b66e1760b8fa2e135b9f9f9651230
65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/* $OpenBSD: fileext.h,v 1.2 2005/06/17 20:40:32 espie Exp $ */
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/* $NetBSD: fileext.h,v 1.5 2003/07/18 21:46:41 nathanw Exp $ */
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/*-
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* Copyright (c)2001 Citrus Project,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Citrus$
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*/
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#ifndef _FILEEXT_H_
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#define _FILEEXT_H_
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#include <pthread.h>
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/*
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* file extension
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*/
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struct __sfileext {
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struct __sbuf _ub; /* ungetc buffer */
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struct wchar_io_data _wcio; /* wide char io status */
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pthread_mutex_t _lock; /* file lock */
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};
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#define _EXT(fp) ((struct __sfileext *)((fp)->_ext._base))
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#define _UB(fp) _EXT(fp)->_ub
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#define _FLOCK(fp) _EXT(fp)->_lock
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#define _FILEEXT_INIT(fp) \
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do { \
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_UB(fp)._base = NULL; \
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_UB(fp)._size = 0; \
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WCIO_INIT(fp); \
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_FLOCK(fp).value = __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE; \
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} while (0)
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#define _FILEEXT_SETUP(f, fext) \
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do { \
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(f)->_ext._base = (unsigned char *)(fext); \
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_FILEEXT_INIT(f); \
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} while (0)
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#endif /* _FILEEXT_H_ */
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