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49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_CONTAINER_AGED_CONTAINER_UTILITY_H_INCLUDED
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#define BEAST_CONTAINER_AGED_CONTAINER_UTILITY_H_INCLUDED
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#include <xrpl/beast/container/aged_container.h>
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#include <type_traits>
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namespace beast {
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/** Expire aged container items past the specified age. */
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template <class AgedContainer, class Rep, class Period>
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typename std::enable_if<is_aged_container<AgedContainer>::value, std::size_t>::
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type
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expire(AgedContainer& c, std::chrono::duration<Rep, Period> const& age)
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{
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std::size_t n(0);
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auto const expired(c.clock().now() - age);
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for (auto iter(c.chronological.cbegin());
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iter != c.chronological.cend() && iter.when() <= expired;)
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{
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iter = c.erase(iter);
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++n;
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}
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return n;
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}
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} // namespace beast
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#endif
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