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‎LICENCE‎

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Copyright (c) 2020 Vladimir Solenkov <vladimirsolenkov@yandex.ru>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY
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THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.

‎include/lru.hrl‎

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-define(SERIE_SIZE,10000000).
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-define(MAX_COUNTER,1000000000000000).
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-define(TIMEOUT_STATE_DELETE,90000).
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-define(ETS_KEYS_STORE_TABLE_NAME,lru_key_store).
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-define(ETS_KEYS_FETCH_TABLE_NAME,lfu_key_fetch).
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-define(ETS_KEYS_FETCH_TABLE_OPTS,[
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public,bag,{write_concurrency,true},
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{decentralized_counters,true}
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]).
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-define(MAX_KEY_SIZE,fun() -> application:get_env(lru,max_key_size,72) end).
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%%
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%% following settings in progress develop
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%%
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-define(SPAWN_OPT_LRU,[
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% {max_heap_size,0},
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% {message_queue_data,off_heap},
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{fullsweep_after,65535}
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]).
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-ifdef(support).
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-define(SUPPORT,true).
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-define(AUXILIARY,any).
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-else.
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-define(SUPPORT,false).
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-define(AUXILIARY,any).
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-endif.

‎lru.app‎

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{application,lru,[
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{description,"Least Recently Used Algorithm"},
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{vsn,"1.0.0"},
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{modules,[
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lru_app,lru_sup,lru,
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lru_protocol,lru_utils
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]},
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{registered,[
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lru_sup,lru
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]},
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{applications,[kernel,stdlib]},
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{included_applications,[ranch]},
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{mod,{lru_app,[]}},
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{start_phases,[]},
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{env,[]},
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{maintainers,["Vladimir Solenkov"]},
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{links,[{"Github","https://github.com/Algorithms-Lab/LRU.git"}]}
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]}.

‎lru.config‎

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[{lru,[
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{ets_dir,"priv"}, %% !!! must be atom string !!!!!
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{ets_sync_reset,true}, %% !!! must be atom type !!!!!
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{ets_recovery,true}, %% !!! must be atom type !!!!!
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{tcp,on}, %% !!! must be atom type !!!!!
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{mode,inet}, %% !!! must be atom type !!!!!
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{port,7777}, %% !!! must be atom type !!!!!
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{ip,{127,0,0,1}}, %% !!! must be tuple type !!!!!
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{unix,"/tmp/lru_socket"}, %% !!! must by string type !!!!!
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{num_acceptors,100}, %% !!! must by integer type !!!!!
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{max_connections,1024}, %% !!! must by integer type !!!!!
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{max_size_key,72} %% !!! must by integer type !!!!!
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]}].

‎priv/init‎

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#!/bin/bash
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NAME="lru"
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APP=$NAME"_app"
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TNODE=$NAME"@"`hostname -s`
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CNODE=$NAME`date +_nodeclt_%H_%M_%S_%N`
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export ERL_MAX_ETS_TABLES=140000
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ACTION=$1
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if [ "" = "$ACTION" ];
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then
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echo "
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USAGE:
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$0 <command> [<arg> ...]
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MANAGE
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start - start up node - 'attached'
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startd - start up node - 'detached'
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attach - attach to running node
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stop - stops application and halts the node
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"
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else
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echo "
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INFO:
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NAME: $NAME
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TNODE: $TNODE
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CNODE: $CNODE
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PWD: $PWD
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APP: $APP
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"
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cd $PWD
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case "$ACTION" in
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"start")
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bin/start
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sleep 3
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bin/to_erl pipe/
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;;
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"startd")
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bin/start
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;;
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"attach")
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bin/to_erl pipe/
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;;
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"stop")
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escript "stop" $CNODE $TNODE
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;;
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*)
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echo "UNKNOW COMMAND!"
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;;
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esac
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fi;

‎priv/lru.rel‎

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{release,
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{"lru","1"},
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{erts,"11.1"},
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[{kernel,"7.1"},
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{stdlib,"3.13.2"},
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{sasl, "4.0.1"},
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{ranch, "2.0.0"},
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{ssl,"10.1"},
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{crypto,"4.8"},
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{public_key,"1.9"},
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{asn1,"5.0.14"},
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{lru, "1.0.0"}]
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}.

‎priv/stop‎

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#!/usr/bin/env escript
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%% -*- erlang -*-
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main([CNode,TNode]) ->
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{ok, _} = net_kernel:start([list_to_atom(CNode),shortnames]),
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Res = rpc:call(list_to_atom(TNode),init,stop,[]),
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io:fwrite("==> ~p~n",[Res]).
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