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author | Tobias Markmann <tm@ayena.de> | 2017-02-17 17:15:41 (GMT) |
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committer | Tobias Markmann <tm@ayena.de> | 2017-02-22 10:54:22 (GMT) |
commit | eea861301be0bf3e3f5db6cfc3cada38d133fef2 (patch) | |
tree | 3c2aa07ce3724a73ce2124832bee6b8c7884c9df /3rdParty/Boost/src/boost/multi_index/detail/header_holder.hpp | |
parent | 80801aaeba2d29e3a375a01d782cf081e778dfaf (diff) | |
download | swift-eea861301be0bf3e3f5db6cfc3cada38d133fef2.zip swift-eea861301be0bf3e3f5db6cfc3cada38d133fef2.tar.bz2 |
Add LRUCache utility class to Swiften
This implements a simple lookup cache with least recently used
replacement strategy.
This also adds Boost.MultiIndex from version 1.56 to 3rdParty.
Test-Information:
Added some unit tests for LRUCache, which pass on macOS 10.12.3
with clang-5.0
Change-Id: I0567945b1197d3fe786bf9d82fdb5e755743b975
Diffstat (limited to '3rdParty/Boost/src/boost/multi_index/detail/header_holder.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/multi_index/detail/header_holder.hpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/multi_index/detail/header_holder.hpp b/3rdParty/Boost/src/boost/multi_index/detail/header_holder.hpp new file mode 100644 index 0000000..ca8a9b2 --- /dev/null +++ b/3rdParty/Boost/src/boost/multi_index/detail/header_holder.hpp @@ -0,0 +1,50 @@ +/* Copyright 2003-2008 Joaquin M Lopez Munoz. + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + * + * See http://www.boost.org/libs/multi_index for library home page. + */ + +#ifndef BOOST_MULTI_INDEX_DETAIL_HEADER_HOLDER_HPP +#define BOOST_MULTI_INDEX_DETAIL_HEADER_HOLDER_HPP + +#if defined(_MSC_VER) +#pragma once +#endif + +#include <boost/noncopyable.hpp> + +namespace boost{ + +namespace multi_index{ + +namespace detail{ + +/* A utility class used to hold a pointer to the header node. + * The base from member idiom is used because index classes, which are + * superclasses of multi_index_container, need this header in construction + * time. The allocation is made by the allocator of the multi_index_container + * class --hence, this allocator needs also be stored resorting + * to the base from member trick. + */ + +template<typename NodeTypePtr,typename Final> +struct header_holder:private noncopyable +{ + header_holder():member(final().allocate_node()){} + ~header_holder(){final().deallocate_node(&*member);} + + NodeTypePtr member; + +private: + Final& final(){return *static_cast<Final*>(this);} +}; + +} /* namespace multi_index::detail */ + +} /* namespace multi_index */ + +} /* namespace boost */ + +#endif |