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53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
// mmap_mm.cpp
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/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "stdafx.h"
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#include "mmap.h"
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/* in memory (no file) version */
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namespace mongo {
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MemoryMappedFile::MemoryMappedFile() {
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fd = 0;
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maphandle = 0;
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view = 0;
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len = 0;
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}
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void MemoryMappedFile::close() {
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if ( view )
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delete( view );
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view = 0;
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len = 0;
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}
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void* MemoryMappedFile::map(const char *filename, int length) {
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path p( filename );
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view = malloc( length );
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return view;
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}
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void MemoryMappedFile::flush(bool sync) {
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}
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}
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