genericopenlibs/openenvcore/libc/inc/reent.h
author Peter Fordham <peter.fordham@gmail.com>
Mon, 22 Mar 2010 12:57:04 -0700
branchCompilerCompatibility
changeset 13 ef48f5dc1b7f
parent 0 e4d67989cc36
permissions -rw-r--r--
Bug 1713 - You can't check the existence of a typedef using the preprocessor. Added a preprocessor check. Also removed an overqualified method name.
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/*
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* WARNING: All identifiers here must begin with an underscore.  This file is
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* included by stdio.h and others and we therefore must only use identifiers
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* in the namespace allotted to us.
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* 
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*
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*/
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#ifndef _REENT_H_
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#define _REENT_H_
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#if (defined(__SYMBIAN32__) && (defined(__WINSCW__) || defined(__WINS__)))
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#include <time.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdio.h>
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#include <wchar.h>
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#include <pthread.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <_ansi.h>
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#include <sys/types.h>
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/*
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struct _reent
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This structure contains *all* globals needed by the library.
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It's raison d'etre is to facilitate threads by making all library routines
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reentrant.  
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Currently only error number, which is per thread basis and
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pointer to CLocalSystemInterface is stored in _reent structure.
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*/
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#define _ASCTIME_SIZE	(26+8)	/* 26 min, plus caution factor! */
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struct _reent
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	{
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	int _errno;			/* local copy of errno */
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	void *_netdb;		/* used by gethostbyaddr and similar netdb functions */
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	void *_memaddr;		/* To hold mapped memory address during mmap syscall */
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	};
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/*
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This exported API is used for fetching reent structure for TLS
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*/
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struct _reent*	ImpurePtr	(void);
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/*
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Support for explicit release of all STDLIB resources belonging to this thread
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*/
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void CloseSTDLIB();
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#define _REENT (ImpurePtr())
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#define __errno_r(ptr) ((ptr)->_errno)
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#ifdef __cplusplus
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}
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#endif
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#endif /* _REENT_H_ */