blob: b823b2b17d101a9f7e6c2f9efa93f3bfe34b8170 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2014 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*/
#include "in-memory-storage-lru.hpp"
namespace ndn {
namespace util {
InMemoryStorageLru::InMemoryStorageLru(size_t limit)
: InMemoryStorage(limit)
{
}
InMemoryStorageLru::~InMemoryStorageLru()
{
}
void
InMemoryStorageLru::afterInsert(InMemoryStorageEntry* entry)
{
BOOST_ASSERT(m_cleanupIndex.size() <= size());
InMemoryStorageEntry* ptr = entry;
m_cleanupIndex.insert(ptr);
}
bool
InMemoryStorageLru::evictItem()
{
if (!m_cleanupIndex.get<byUsedTime>().empty()) {
CleanupIndex::index<byUsedTime>::type::iterator it = m_cleanupIndex.get<byUsedTime>().begin();
eraseImpl((*it)->getFullName());
m_cleanupIndex.get<byUsedTime>().erase(it);
return true;
}
return false;
}
void
InMemoryStorageLru::beforeErase(InMemoryStorageEntry* entry)
{
CleanupIndex::index<byEntity>::type::iterator it = m_cleanupIndex.get<byEntity>().find(entry);
if (it != m_cleanupIndex.get<byEntity>().end())
m_cleanupIndex.get<byEntity>().erase(it);
}
void
InMemoryStorageLru::afterAccess(InMemoryStorageEntry* entry)
{
beforeErase(entry);
afterInsert(entry);
}
} // namespace util
} // namespace ndn