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16440 changed files with 4239995 additions and 2 deletions
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Src/nprt_plugin/gecko/1.8/win/include/prmem.h
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Src/nprt_plugin/gecko/1.8/win/include/prmem.h
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/* -*- 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: prmem.h
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** Description: API to NSPR memory management functions
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**
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*/
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#ifndef prmem_h___
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#define prmem_h___
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#include "prtypes.h"
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#include <stdlib.h>
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PR_BEGIN_EXTERN_C
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/*
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** Thread safe memory allocation.
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**
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** NOTE: pr wraps up malloc, free, calloc, realloc so they are already
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** thread safe (and are not declared here - look in stdlib.h).
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*/
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/*
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** PR_Malloc, PR_Calloc, PR_Realloc, and PR_Free have the same signatures
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** as their libc equivalent malloc, calloc, realloc, and free, and have
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** the same semantics. (Note that the argument type size_t is replaced
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** by PRUint32.) Memory allocated by PR_Malloc, PR_Calloc, or PR_Realloc
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** must be freed by PR_Free.
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*/
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NSPR_API(void *) PR_Malloc(PRUint32 size);
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NSPR_API(void *) PR_Calloc(PRUint32 nelem, PRUint32 elsize);
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NSPR_API(void *) PR_Realloc(void *ptr, PRUint32 size);
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NSPR_API(void) PR_Free(void *ptr);
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/*
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** The following are some convenience macros defined in terms of
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** PR_Malloc, PR_Calloc, PR_Realloc, and PR_Free.
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*/
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/***********************************************************************
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** FUNCTION: PR_MALLOC()
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** DESCRIPTION:
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** PR_NEW() allocates an untyped item of size _size from the heap.
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** INPUTS: _size: size in bytes of item to be allocated
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** OUTPUTS: untyped pointer to the node allocated
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** RETURN: pointer to node or error returned from malloc().
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***********************************************************************/
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#define PR_MALLOC(_bytes) (PR_Malloc((_bytes)))
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/***********************************************************************
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** FUNCTION: PR_NEW()
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** DESCRIPTION:
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** PR_NEW() allocates an item of type _struct from the heap.
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** INPUTS: _struct: a data type
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** OUTPUTS: pointer to _struct
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** RETURN: pointer to _struct or error returns from malloc().
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***********************************************************************/
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#define PR_NEW(_struct) ((_struct *) PR_MALLOC(sizeof(_struct)))
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/***********************************************************************
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** FUNCTION: PR_REALLOC()
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** DESCRIPTION:
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** PR_REALLOC() re-allocates _ptr bytes from the heap as a _size
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** untyped item.
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** INPUTS: _ptr: pointer to node to reallocate
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** _size: size of node to allocate
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** OUTPUTS: pointer to node allocated
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** RETURN: pointer to node allocated
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***********************************************************************/
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#define PR_REALLOC(_ptr, _size) (PR_Realloc((_ptr), (_size)))
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/***********************************************************************
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** FUNCTION: PR_CALLOC()
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** DESCRIPTION:
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** PR_CALLOC() allocates a _size bytes untyped item from the heap
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** and sets the allocated memory to all 0x00.
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** INPUTS: _size: size of node to allocate
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** OUTPUTS: pointer to node allocated
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** RETURN: pointer to node allocated
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***********************************************************************/
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#define PR_CALLOC(_size) (PR_Calloc(1, (_size)))
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/***********************************************************************
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** FUNCTION: PR_NEWZAP()
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** DESCRIPTION:
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** PR_NEWZAP() allocates an item of type _struct from the heap
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** and sets the allocated memory to all 0x00.
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** INPUTS: _struct: a data type
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** OUTPUTS: pointer to _struct
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** RETURN: pointer to _struct
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***********************************************************************/
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#define PR_NEWZAP(_struct) ((_struct*)PR_Calloc(1, sizeof(_struct)))
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/***********************************************************************
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** FUNCTION: PR_DELETE()
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** DESCRIPTION:
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** PR_DELETE() unallocates an object previosly allocated via PR_NEW()
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** or PR_NEWZAP() to the heap.
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** INPUTS: pointer to previously allocated object
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** OUTPUTS: the referenced object is returned to the heap
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** RETURN: void
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***********************************************************************/
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#define PR_DELETE(_ptr) { PR_Free(_ptr); (_ptr) = NULL; }
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/***********************************************************************
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** FUNCTION: PR_FREEIF()
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** DESCRIPTION:
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** PR_FREEIF() conditionally unallocates an object previously allocated
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** vial PR_NEW() or PR_NEWZAP(). If the pointer to the object is
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** equal to zero (0), the object is not released.
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** INPUTS: pointer to previously allocated object
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** OUTPUTS: the referenced object is conditionally returned to the heap
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** RETURN: void
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***********************************************************************/
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#define PR_FREEIF(_ptr) if (_ptr) PR_DELETE(_ptr)
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PR_END_EXTERN_C
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#endif /* prmem_h___ */
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