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diff --git a/indexlib/mmap_manager.h b/indexlib/mmap_manager.h
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+#ifndef LPC_MMAP_MANAGER_H1103129409_INCLUDE_GUARD_
+#define LPC_MMAP_MANAGER_H1103129409_INCLUDE_GUARD_
+
+/* This file is part of indexlib.
+ * Copyright (C) 2005 Luís Pedro Coelho <luis@luispedro.org>
+ *
+ * Indexlib is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation and available as file
+ * GPL_V2 which is distributed along with indexlib.
+ * 
+ * Indexlib 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
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA
+ * 
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of this program with any edition of
+ * the Qt library by Trolltech AS, Norway (or with modified versions
+ * of Qt that use the same license as Qt), and distribute linked
+ * combinations including the two.  You must obey the GNU General
+ * Public License in all respects for all of the code used other than
+ * Qt.  If you modify this file, you may extend this exception to
+ * your version of the file, but you are not obligated to do so.  If
+ * you do not wish to do so, delete this exception statement from
+ * your version.
+ */
+
+
+#include "manager.h"
+#include <string>
+#include <cstring>
+#include <unistd.h>
+#include <assert.h>
+
+class mmap_manager : public memory_manager {
+	public:
+		explicit mmap_manager( std::string );
+		~mmap_manager();
+		const unsigned char* ronly_base( unsigned offset ) const {
+			assert( offset <= size() ); // allow 1-past-the-end but not more
+			return reinterpret_cast<unsigned char*>( base_ ) + offset;
+		}
+		unsigned char* rw_base( unsigned offset ) const {
+			assert( offset <= size() ); // as above
+			return reinterpret_cast<unsigned char*>( base_ ) + offset;
+		}
+		unsigned size() const {
+			return size_;
+		}
+		void resize( unsigned );
+
+		static void remove( std::string fname ) {
+			::unlink( fname.c_str() );
+		}
+	private:
+		void unmap();
+		void map( unsigned );
+		std::string filename_;
+		const unsigned pagesize_;
+		int fd_;
+		void* base_;
+		unsigned size_;
+};
+
+
+#endif /* LPC_MMAP_MANAGER_H1103129409_INCLUDE_GUARD_ */