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-rw-r--r--khtml/rendering/render_arena.h72
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-/*
- * Copyright (C) 2002 Apple Computer, Inc.
- * Copyright (C) 2003 Dirk Mueller ([email protected])
- *
- * Portions are Copyright (C) 1998 Netscape Communications Corporation.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Alternatively, the contents of this file may be used under the terms
- * of either the Mozilla Public License Version 1.1, found at
- * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
- * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
- * (the "GPL"), in which case the provisions of the MPL or the GPL are
- * applicable instead of those above. If you wish to allow use of your
- * version of this file only under the terms of one of those two
- * licenses (the MPL or the GPL) and not to allow others to use your
- * version of this file under the LGPL, indicate your decision by
- * deletingthe provisions above and replace them with the notice and
- * other provisions required by the MPL or the GPL, as the case may be.
- * If you do not delete the provisions above, a recipient may use your
- * version of this file under any of the LGPL, the MPL or the GPL.
- */
-
-#ifndef RENDERARENA_H
-#define RENDERARENA_H
-
-#include "misc/arena.h"
-#include "misc/shared.h"
-
-#include <stdlib.h>
-
-namespace khtml {
-
-#define KHTML_MAX_RECYCLED_SIZE 400
-#define KHTML_ROUNDUP(x,y) ((((x)+((y)-1))/(y))*(y))
-
-class RenderArena: public Shared<RenderArena> {
-public:
- RenderArena(unsigned int arenaSize = 4096);
- ~RenderArena();
-
- // Memory management functions
- void* allocate(size_t size);
- void free(size_t size, void* ptr);
-
-private:
- // Underlying arena pool
- ArenaPool m_pool;
-
- // The recycler array is sparse with the indices being multiples of 4,
- // i.e., 0, 4, 8, 12, 16, 20, ...
- void* m_recyclers[KHTML_MAX_RECYCLED_SIZE >> 2];
-};
-
-
-} // namespace
-
-
-#endif
-