Cache::ApplyResult Cache::applyPolicy( CachePolicy& cachePolicy ) const
{
ReadLock readLock( mutex_, boost::try_to_lock );
if( !readLock.owns_lock() )
return AR_CACHEBUSY;
if( cacheMap_.empty() || !cachePolicy.willPolicyBeActivated( *this ) )
return AR_NOTACTIVATED;
std::vector< CacheObject* > cacheObjectList;
cacheObjectList.reserve( cacheMap_.size() );
for( CacheMap::const_iterator it = cacheMap_.begin(); it != cacheMap_.end(); ++it )
{
CacheObject* object = it->second.get();
if( object && object->isValid() && object->isLoaded_() )
{
cacheObjectList.push_back( object );
}
}
if( cacheObjectList.empty() )
return AR_EMPTY;
std::vector< CacheObject * > modifiedList;
cachePolicy.apply_( *this, cacheObjectList, modifiedList );
unloadCacheObjectsWithPolicy_( cachePolicy, modifiedList );
return AR_ACTIVATED;
}
