75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
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#ifndef OSMIUM_INDEX_DETAIL_MMAP_VECTOR_FILE_HPP
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#define OSMIUM_INDEX_DETAIL_MMAP_VECTOR_FILE_HPP
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/*
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This file is part of Osmium (http://osmcode.org/libosmium).
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Copyright 2013-2016 Jochen Topf <jochen@topf.org> and others (see README).
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#include <osmium/index/detail/mmap_vector_base.hpp>
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#include <osmium/index/detail/tmpfile.hpp>
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#include <osmium/util/file.hpp>
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namespace osmium {
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namespace detail {
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/**
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* This class looks and behaves like STL vector, but mmap's a file
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* internally.
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*/
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template <typename T>
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class mmap_vector_file : public mmap_vector_base<T> {
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public:
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mmap_vector_file() :
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mmap_vector_base<T>(
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osmium::detail::create_tmp_file(),
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osmium::detail::mmap_vector_size_increment) {
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}
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explicit mmap_vector_file(int fd) :
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mmap_vector_base<T>(
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fd,
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osmium::util::file_size(fd) / sizeof(T),
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osmium::util::file_size(fd) / sizeof(T)) {
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}
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~mmap_vector_file() noexcept = default;
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}; // class mmap_vector_file
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} // namespace detail
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} // namespace osmium
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#endif // OSMIUM_INDEX_DETAIL_MMAP_VECTOR_FILE_HPP
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