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cache.h
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright (C) 2010 Brian Aker
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma once
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#include <boost/unordered_map.hpp>
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#include <boost/shared_ptr.hpp>
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#include <drizzled/message.h>
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#include <drizzled/identifier/table.h>
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namespace
drizzled {
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namespace
message {
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class
Cache
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{
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public
:
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static
Cache
&singleton()
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{
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static
Cache
open_cache;
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return
open_cache;
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}
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size_t
size()
const
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{
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return
cache.size();
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}
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void
rehash(
size_t
arg)
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{
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cache.rehash(arg);
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}
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table::shared_ptr find(
const
identifier::Table
&identifier);
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void
erase(
const
identifier::Table
&identifier);
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bool
insert(
const
identifier::Table
&identifier, table::shared_ptr share);
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bool
insert(
const
identifier::Table
&identifier,
Table
&share);
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private
:
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typedef
boost::unordered_map<identifier::Table::Key, table::shared_ptr> Map;
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boost::mutex _access;
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Map cache;
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};
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}
/* namespace message */
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}
/* namespace drizzled */
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drizzled
message
cache.h
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