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51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
// mmap_mm.cpp - in memory (no file) version
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/* Copyright 2009 10gen Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "pch.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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free( 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, long& length , int options ) {
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assert( length );
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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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