From 460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: 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/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- indexlib/mmap_manager.h | 72 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 indexlib/mmap_manager.h (limited to 'indexlib/mmap_manager.h') diff --git a/indexlib/mmap_manager.h b/indexlib/mmap_manager.h new file mode 100644 index 000000000..eaed5d8de --- /dev/null +++ b/indexlib/mmap_manager.h @@ -0,0 +1,72 @@ +#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 + * + * 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 +#include +#include +#include + +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( base_ ) + offset; + } + unsigned char* rw_base( unsigned offset ) const { + assert( offset <= size() ); // as above + return reinterpret_cast( 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_ */ -- cgit v1.2.1