569 lines
20 KiB
C
569 lines
20 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape Portable Runtime (NSPR).
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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** File: prtypes.h
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** Description: Definitions of NSPR's basic types
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**
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** Prototypes and macros used to make up for deficiencies that we have found
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** in ANSI environments.
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**
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** Since we do not wrap <stdlib.h> and all the other standard headers, authors
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** of portable code will not know in general that they need these definitions.
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** Instead of requiring these authors to find the dependent uses in their code
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** and take the following steps only in those C files, we take steps once here
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** for all C files.
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**/
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#ifndef prtypes_h___
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#define prtypes_h___
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#ifdef MDCPUCFG
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#include MDCPUCFG
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#else
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#include "prcpucfg.h"
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#endif
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#include <stddef.h>
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/***********************************************************************
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** MACROS: PR_EXTERN
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** PR_IMPLEMENT
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** DESCRIPTION:
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** These are only for externally visible routines and globals. For
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** internal routines, just use "extern" for type checking and that
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** will not export internal cross-file or forward-declared symbols.
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** Define a macro for declaring procedures return types. We use this to
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** deal with windoze specific type hackery for DLL definitions. Use
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** PR_EXTERN when the prototype for the method is declared. Use
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** PR_IMPLEMENT for the implementation of the method.
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**
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** Example:
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** in dowhim.h
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** PR_EXTERN( void ) DoWhatIMean( void );
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** in dowhim.c
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** PR_IMPLEMENT( void ) DoWhatIMean( void ) { return; }
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**
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**
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***********************************************************************/
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#if defined(WIN32)
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#define PR_EXPORT(__type) extern __declspec(dllexport) __type
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#define PR_EXPORT_DATA(__type) extern __declspec(dllexport) __type
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#define PR_IMPORT(__type) __declspec(dllimport) __type
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#define PR_IMPORT_DATA(__type) __declspec(dllimport) __type
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#define PR_EXTERN(__type) extern __declspec(dllexport) __type
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#define PR_IMPLEMENT(__type) __declspec(dllexport) __type
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#define PR_EXTERN_DATA(__type) extern __declspec(dllexport) __type
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#define PR_IMPLEMENT_DATA(__type) __declspec(dllexport) __type
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#define PR_CALLBACK
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#define PR_CALLBACK_DECL
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#define PR_STATIC_CALLBACK(__x) static __x
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#elif defined(XP_BEOS)
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#define PR_EXPORT(__type) extern __declspec(dllexport) __type
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#define PR_EXPORT_DATA(__type) extern __declspec(dllexport) __type
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#define PR_IMPORT(__type) extern __declspec(dllexport) __type
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#define PR_IMPORT_DATA(__type) extern __declspec(dllexport) __type
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#define PR_EXTERN(__type) extern __declspec(dllexport) __type
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#define PR_IMPLEMENT(__type) __declspec(dllexport) __type
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#define PR_EXTERN_DATA(__type) extern __declspec(dllexport) __type
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#define PR_IMPLEMENT_DATA(__type) __declspec(dllexport) __type
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#define PR_CALLBACK
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#define PR_CALLBACK_DECL
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#define PR_STATIC_CALLBACK(__x) static __x
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#elif defined(WIN16)
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#define PR_CALLBACK_DECL __cdecl
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#if defined(_WINDLL)
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#define PR_EXPORT(__type) extern __type _cdecl _export _loadds
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#define PR_IMPORT(__type) extern __type _cdecl _export _loadds
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#define PR_EXPORT_DATA(__type) extern __type _export
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#define PR_IMPORT_DATA(__type) extern __type _export
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#define PR_EXTERN(__type) extern __type _cdecl _export _loadds
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#define PR_IMPLEMENT(__type) __type _cdecl _export _loadds
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#define PR_EXTERN_DATA(__type) extern __type _export
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#define PR_IMPLEMENT_DATA(__type) __type _export
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#define PR_CALLBACK __cdecl __loadds
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#define PR_STATIC_CALLBACK(__x) static __x PR_CALLBACK
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#else /* this must be .EXE */
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#define PR_EXPORT(__type) extern __type _cdecl _export
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#define PR_IMPORT(__type) extern __type _cdecl _export
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#define PR_EXPORT_DATA(__type) extern __type _export
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#define PR_IMPORT_DATA(__type) extern __type _export
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#define PR_EXTERN(__type) extern __type _cdecl _export
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#define PR_IMPLEMENT(__type) __type _cdecl _export
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#define PR_EXTERN_DATA(__type) extern __type _export
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#define PR_IMPLEMENT_DATA(__type) __type _export
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#define PR_CALLBACK __cdecl __loadds
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#define PR_STATIC_CALLBACK(__x) __x PR_CALLBACK
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#endif /* _WINDLL */
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#elif defined(XP_MAC)
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#define PR_EXPORT(__type) extern __declspec(export) __type
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#define PR_EXPORT_DATA(__type) extern __declspec(export) __type
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#define PR_IMPORT(__type) extern __declspec(export) __type
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#define PR_IMPORT_DATA(__type) extern __declspec(export) __type
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#define PR_EXTERN(__type) extern __declspec(export) __type
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#define PR_IMPLEMENT(__type) __declspec(export) __type
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#define PR_EXTERN_DATA(__type) extern __declspec(export) __type
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#define PR_IMPLEMENT_DATA(__type) __declspec(export) __type
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#define PR_CALLBACK
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#define PR_CALLBACK_DECL
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#define PR_STATIC_CALLBACK(__x) static __x
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#elif defined(XP_OS2) && defined(__declspec)
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#define PR_EXPORT(__type) extern __declspec(dllexport) __type
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#define PR_EXPORT_DATA(__type) extern __declspec(dllexport) __type
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#define PR_IMPORT(__type) extern __declspec(dllimport) __type
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#define PR_IMPORT_DATA(__type) extern __declspec(dllimport) __type
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#define PR_EXTERN(__type) extern __declspec(dllexport) __type
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#define PR_IMPLEMENT(__type) __declspec(dllexport) __type
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#define PR_EXTERN_DATA(__type) extern __declspec(dllexport) __type
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#define PR_IMPLEMENT_DATA(__type) __declspec(dllexport) __type
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#define PR_CALLBACK
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#define PR_CALLBACK_DECL
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#define PR_STATIC_CALLBACK(__x) static __x
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#elif defined(XP_OS2_VACPP)
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#define PR_EXPORT(__type) extern __type
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#define PR_EXPORT_DATA(__type) extern __type
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#define PR_IMPORT(__type) extern __type
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#define PR_IMPORT_DATA(__type) extern __type
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#define PR_EXTERN(__type) extern __type
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#define PR_IMPLEMENT(__type) __type
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#define PR_EXTERN_DATA(__type) extern __type
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#define PR_IMPLEMENT_DATA(__type) __type
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#define PR_CALLBACK _Optlink
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#define PR_CALLBACK_DECL
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#define PR_STATIC_CALLBACK(__x) static __x PR_CALLBACK
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#else /* Unix */
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/* GCC 3.3 and later support the visibility attribute. */
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#if (__GNUC__ >= 4) || \
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(__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
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#define PR_VISIBILITY_DEFAULT __attribute__((visibility("default")))
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#else
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#define PR_VISIBILITY_DEFAULT
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#endif
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#define PR_EXPORT(__type) extern PR_VISIBILITY_DEFAULT __type
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#define PR_EXPORT_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
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#define PR_IMPORT(__type) extern PR_VISIBILITY_DEFAULT __type
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#define PR_IMPORT_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
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#define PR_EXTERN(__type) extern PR_VISIBILITY_DEFAULT __type
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#define PR_IMPLEMENT(__type) PR_VISIBILITY_DEFAULT __type
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#define PR_EXTERN_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
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#define PR_IMPLEMENT_DATA(__type) PR_VISIBILITY_DEFAULT __type
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#define PR_CALLBACK
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#define PR_CALLBACK_DECL
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#define PR_STATIC_CALLBACK(__x) static __x
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#endif
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#if defined(_NSPR_BUILD_)
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#define NSPR_API(__type) PR_EXPORT(__type)
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#define NSPR_DATA_API(__type) PR_EXPORT_DATA(__type)
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#else
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#define NSPR_API(__type) PR_IMPORT(__type)
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#define NSPR_DATA_API(__type) PR_IMPORT_DATA(__type)
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#endif
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/***********************************************************************
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** MACROS: PR_BEGIN_MACRO
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** PR_END_MACRO
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** DESCRIPTION:
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** Macro body brackets so that macros with compound statement definitions
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** behave syntactically more like functions when called.
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***********************************************************************/
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#define PR_BEGIN_MACRO do {
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#define PR_END_MACRO } while (0)
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/***********************************************************************
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** MACROS: PR_BEGIN_EXTERN_C
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** PR_END_EXTERN_C
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** DESCRIPTION:
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** Macro shorthands for conditional C++ extern block delimiters.
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***********************************************************************/
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#ifdef __cplusplus
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#define PR_BEGIN_EXTERN_C extern "C" {
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#define PR_END_EXTERN_C }
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#else
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#define PR_BEGIN_EXTERN_C
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#define PR_END_EXTERN_C
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#endif
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/***********************************************************************
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** MACROS: PR_BIT
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** PR_BITMASK
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** DESCRIPTION:
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** Bit masking macros. XXX n must be <= 31 to be portable
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***********************************************************************/
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#define PR_BIT(n) ((PRUint32)1 << (n))
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#define PR_BITMASK(n) (PR_BIT(n) - 1)
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/***********************************************************************
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** MACROS: PR_ROUNDUP
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** PR_MIN
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** PR_MAX
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** PR_ABS
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** DESCRIPTION:
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** Commonly used macros for operations on compatible types.
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***********************************************************************/
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#define PR_ROUNDUP(x,y) ((((x)+((y)-1))/(y))*(y))
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#define PR_MIN(x,y) ((x)<(y)?(x):(y))
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#define PR_MAX(x,y) ((x)>(y)?(x):(y))
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#define PR_ABS(x) ((x)<0?-(x):(x))
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PR_BEGIN_EXTERN_C
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/************************************************************************
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** TYPES: PRUint8
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** PRInt8
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** DESCRIPTION:
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** The int8 types are known to be 8 bits each. There is no type that
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** is equivalent to a plain "char".
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************************************************************************/
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#if PR_BYTES_PER_BYTE == 1
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typedef unsigned char PRUint8;
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/*
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** Some cfront-based C++ compilers do not like 'signed char' and
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** issue the warning message:
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** warning: "signed" not implemented (ignored)
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** For these compilers, we have to define PRInt8 as plain 'char'.
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** Make sure that plain 'char' is indeed signed under these compilers.
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*/
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#if (defined(HPUX) && defined(__cplusplus) \
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&& !defined(__GNUC__) && __cplusplus < 199707L) \
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|| (defined(SCO) && defined(__cplusplus) \
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&& !defined(__GNUC__) && __cplusplus == 1L)
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typedef char PRInt8;
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#else
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typedef signed char PRInt8;
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#endif
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#else
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#error No suitable type for PRInt8/PRUint8
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#endif
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/************************************************************************
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* MACROS: PR_INT8_MAX
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* PR_INT8_MIN
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* PR_UINT8_MAX
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* DESCRIPTION:
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* The maximum and minimum values of a PRInt8 or PRUint8.
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************************************************************************/
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#define PR_INT8_MAX 127
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#define PR_INT8_MIN (-128)
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#define PR_UINT8_MAX 255U
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/************************************************************************
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** TYPES: PRUint16
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** PRInt16
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** DESCRIPTION:
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** The int16 types are known to be 16 bits each.
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************************************************************************/
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#if PR_BYTES_PER_SHORT == 2
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typedef unsigned short PRUint16;
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typedef short PRInt16;
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#else
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#error No suitable type for PRInt16/PRUint16
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#endif
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/************************************************************************
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* MACROS: PR_INT16_MAX
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* PR_INT16_MIN
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* PR_UINT16_MAX
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* DESCRIPTION:
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* The maximum and minimum values of a PRInt16 or PRUint16.
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************************************************************************/
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#define PR_INT16_MAX 32767
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#define PR_INT16_MIN (-32768)
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#define PR_UINT16_MAX 65535U
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/************************************************************************
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** TYPES: PRUint32
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** PRInt32
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** DESCRIPTION:
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** The int32 types are known to be 32 bits each.
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************************************************************************/
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#if PR_BYTES_PER_INT == 4
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typedef unsigned int PRUint32;
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typedef int PRInt32;
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#define PR_INT32(x) x
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#define PR_UINT32(x) x ## U
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#elif PR_BYTES_PER_LONG == 4
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typedef unsigned long PRUint32;
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typedef long PRInt32;
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#define PR_INT32(x) x ## L
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#define PR_UINT32(x) x ## UL
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#else
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#error No suitable type for PRInt32/PRUint32
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#endif
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/************************************************************************
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* MACROS: PR_INT32_MAX
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* PR_INT32_MIN
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* PR_UINT32_MAX
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* DESCRIPTION:
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* The maximum and minimum values of a PRInt32 or PRUint32.
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************************************************************************/
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#define PR_INT32_MAX PR_INT32(2147483647)
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#define PR_INT32_MIN (-PR_INT32_MAX - 1)
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#define PR_UINT32_MAX PR_UINT32(4294967295)
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/************************************************************************
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** TYPES: PRUint64
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** PRInt64
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** DESCRIPTION:
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** The int64 types are known to be 64 bits each. Care must be used when
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** declaring variables of type PRUint64 or PRInt64. Different hardware
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** architectures and even different compilers have varying support for
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** 64 bit values. The only guaranteed portability requires the use of
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** the LL_ macros (see prlong.h).
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************************************************************************/
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#ifdef HAVE_LONG_LONG
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#if PR_BYTES_PER_LONG == 8
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typedef long PRInt64;
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typedef unsigned long PRUint64;
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#elif defined(WIN16)
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typedef __int64 PRInt64;
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typedef unsigned __int64 PRUint64;
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#elif defined(WIN32) && !defined(__GNUC__)
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typedef __int64 PRInt64;
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typedef unsigned __int64 PRUint64;
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#else
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typedef long long PRInt64;
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typedef unsigned long long PRUint64;
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#endif /* PR_BYTES_PER_LONG == 8 */
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#else /* !HAVE_LONG_LONG */
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typedef struct {
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#ifdef IS_LITTLE_ENDIAN
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PRUint32 lo, hi;
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#else
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PRUint32 hi, lo;
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#endif
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} PRInt64;
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typedef PRInt64 PRUint64;
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#endif /* !HAVE_LONG_LONG */
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/************************************************************************
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** TYPES: PRUintn
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** PRIntn
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** DESCRIPTION:
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** The PRIntn types are most appropriate for automatic variables. They are
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** guaranteed to be at least 16 bits, though various architectures may
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** define them to be wider (e.g., 32 or even 64 bits). These types are
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** never valid for fields of a structure.
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************************************************************************/
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#if PR_BYTES_PER_INT >= 2
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typedef int PRIntn;
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typedef unsigned int PRUintn;
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#else
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#error 'sizeof(int)' not sufficient for platform use
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#endif
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/************************************************************************
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** TYPES: PRFloat64
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** DESCRIPTION:
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** NSPR's floating point type is always 64 bits.
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************************************************************************/
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typedef double PRFloat64;
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/************************************************************************
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** TYPES: PRSize
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** DESCRIPTION:
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** A type for representing the size of objects.
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************************************************************************/
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typedef size_t PRSize;
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/************************************************************************
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** TYPES: PROffset32, PROffset64
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** DESCRIPTION:
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** A type for representing byte offsets from some location.
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|
************************************************************************/
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typedef PRInt32 PROffset32;
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typedef PRInt64 PROffset64;
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/************************************************************************
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** TYPES: PRPtrDiff
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** DESCRIPTION:
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** A type for pointer difference. Variables of this type are suitable
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** for storing a pointer or pointer subtraction.
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************************************************************************/
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typedef ptrdiff_t PRPtrdiff;
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/************************************************************************
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** TYPES: PRUptrdiff
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** DESCRIPTION:
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** A type for pointer difference. Variables of this type are suitable
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** for storing a pointer or pointer sutraction.
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|
************************************************************************/
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#ifdef _WIN64
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typedef unsigned __int64 PRUptrdiff;
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#else
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typedef unsigned long PRUptrdiff;
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#endif
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/************************************************************************
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** TYPES: PRBool
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|
** DESCRIPTION:
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|
** Use PRBool for variables and parameter types. Use PR_FALSE and PR_TRUE
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|
** for clarity of target type in assignments and actual arguments. Use
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|
** 'if (bool)', 'while (!bool)', '(bool) ? x : y' etc., to test booleans
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|
** just as you would C int-valued conditions.
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|
************************************************************************/
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typedef PRIntn PRBool;
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#define PR_TRUE 1
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#define PR_FALSE 0
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/************************************************************************
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** TYPES: PRPackedBool
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** DESCRIPTION:
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|
** Use PRPackedBool within structs where bitfields are not desirable
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|
** but minimum and consistant overhead matters.
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|
************************************************************************/
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typedef PRUint8 PRPackedBool;
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/*
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|
** Status code used by some routines that have a single point of failure or
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** special status return.
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|
*/
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typedef enum { PR_FAILURE = -1, PR_SUCCESS = 0 } PRStatus;
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#ifndef __PRUNICHAR__
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#define __PRUNICHAR__
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#if defined(WIN32) || defined(XP_MAC)
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typedef wchar_t PRUnichar;
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#else
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typedef PRUint16 PRUnichar;
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#endif
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#endif
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/*
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** WARNING: The undocumented data types PRWord and PRUword are
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** only used in the garbage collection and arena code. Do not
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** use PRWord and PRUword in new code.
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**
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** A PRWord is an integer that is the same size as a void*.
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** It implements the notion of a "word" in the Java Virtual
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** Machine. (See Sec. 3.4 "Words", The Java Virtual Machine
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** Specification, Addison-Wesley, September 1996.
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** http://java.sun.com/docs/books/vmspec/index.html.)
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*/
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#ifdef _WIN64
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typedef __int64 PRWord;
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typedef unsigned __int64 PRUword;
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#else
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typedef long PRWord;
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typedef unsigned long PRUword;
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#endif
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#if defined(NO_NSPR_10_SUPPORT)
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#else
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/********* ???????????????? FIX ME ??????????????????????????? *****/
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/********************** Some old definitions until pr=>ds transition is done ***/
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/********************** Also, we are still using NSPR 1.0. GC ******************/
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/*
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** Fundamental NSPR macros, used nearly everywhere.
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*/
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#define PR_PUBLIC_API PR_IMPLEMENT
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/*
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** Macro body brackets so that macros with compound statement definitions
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** behave syntactically more like functions when called.
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*/
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#define NSPR_BEGIN_MACRO do {
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#define NSPR_END_MACRO } while (0)
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/*
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** Macro shorthands for conditional C++ extern block delimiters.
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*/
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#ifdef NSPR_BEGIN_EXTERN_C
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#undef NSPR_BEGIN_EXTERN_C
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#endif
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#ifdef NSPR_END_EXTERN_C
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#undef NSPR_END_EXTERN_C
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#endif
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#ifdef __cplusplus
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#define NSPR_BEGIN_EXTERN_C extern "C" {
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#define NSPR_END_EXTERN_C }
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#else
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#define NSPR_BEGIN_EXTERN_C
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#define NSPR_END_EXTERN_C
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#endif
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#ifdef XP_MAC
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#include "protypes.h"
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#else
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#include "protypes.h"
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#endif
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/********* ????????????? End Fix me ?????????????????????????????? *****/
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#endif /* NO_NSPR_10_SUPPORT */
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PR_END_EXTERN_C
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#endif /* prtypes_h___ */
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