Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 72 insertions, 0 deletions

diff --git a/khtml/rendering/render_arena.h b/khtml/rendering/render_arena.h
new file mode 100644
index 000000000..786cd208a
--- /dev/null
+++ b/khtml/rendering/render_arena.h
@@ -0,0 +1,72 @@
+/*
+ * 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
+