317e478e12
allocations done by zlib by recycling previously allocated memory. r=darin sr=dveditz git-svn-id: svn://10.0.0.236/trunk@110529 18797224-902f-48f8-a5cc-f745e15eee43
76 lines
2.4 KiB
C++
76 lines
2.4 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 mozilla.org code.
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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) 2001
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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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* Allocator for zlib optimized for mozilla's use
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*
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*/
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#define NBUCKETS 6
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#define BY4ALLOC_ITEMS 320
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class nsZlibAllocator;
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extern nsZlibAllocator *gZlibAllocator;
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class nsZlibAllocator {
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public:
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struct nsMemBucket {
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void *ptr;
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PRUint32 size;
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PRBool inUse;
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};
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nsMemBucket mMemBucket[NBUCKETS];
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nsZlibAllocator() {
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memset(mMemBucket, 0, sizeof(mMemBucket));
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return;
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}
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~nsZlibAllocator() {
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zClearBuckets();
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}
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// zlib allocators
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void* zAlloc(PRUint32 items, PRUint32 size);
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void zFree(void *ptr);
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// Clear the buckets of memory we have for zlib
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int zClearBuckets();
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};
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