/* | |
* Copyright (C) 2003 Apple Computer, Inc. | |
* | |
* 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 "Arena.h" | |
#include <wtf/Noncopyable.h> | |
namespace WebCore { | |
static const size_t gMaxRecycledSize = 400; | |
class RenderArena : public Noncopyable { | |
public: | |
RenderArena(unsigned arenaSize = 4096); | |
~RenderArena(); | |
// Memory management functions | |
void* allocate(size_t); | |
void free(size_t, void*); | |
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[gMaxRecycledSize >> 2]; | |
}; | |
} // namespace WebCore | |
#endif // RenderArena_h |