shared_ptr<ndn::Data>
NdnDataManager::operator[]( shared_ptr<const ndn::Interest> interest )
{
Name subname = interest->getName();
auto it = subname.end()-1;
while( ( it->isVersion() || it->isSegment()
|| it->isSegmentOffset() || it->isTimestamp()
|| it->isSequenceNumber() ) && ( it-- ) != subname.begin() );
subname = subname.getPrefix( it - subname.begin() + 1 );
if( m_producers.find( subname ) != m_producers.end() )
{
// find data producer
auto producer = m_producers[subname];
// if access level is 0, no access needs to be provided
if( interest->getAuthTag().getAccessLevel() == 0 )
{
Coordinator::
producerSatisfiedRequest( interest->getName().getPrefix( 2 ),
interest->getName() );
return producer->makeData( interest );
}
// generate data packet
shared_ptr<Data> data = producer->makeData( interest );
// check that the interest's access rights
// satisfy the data's requirements
if( m_auth_manager->getTagAccess( interest->getAuthTag() )
< data->getAccessLevel() )
{
Coordinator::
producerDeniedRequest( interest->getName().getPrefix( 2 ),
interest->getName(),
"Insufficient Auth" );
return makeNack( *data );
}
// check that the data satisfies interest
if( interest->matchesData( *data ) )
{
Coordinator::
producerSatisfiedRequest( interest->getName().getPrefix(2),
interest->getName() );
return data;
}
}
Coordinator::producerOther( interest->getName().getPrefix( 2 ),
"No data matching "
+ interest->getName().toUri() );
return NULL;
};
int ServerProxy::handleCheckLoad()
{
//
// Check if we just created the first X channel
// but the client side didn't tell us to load
// the cache selected at the session negotiation.
// This is very likely because the load operation
// failed at the remote side, for example because
// the cache was invalid or corrupted.
//
int channelCount = getChannels(channel_x11);
if (channelCount != 1)
{
return 0;
}
if (control -> PersistentCacheEnableLoad == 1 &&
control -> PersistentCachePath != NULL &&
control -> PersistentCacheName != NULL &&
isTimestamp(timeouts_.loadTs) == 0)
{
#ifdef WARNING
*logofs << "ServerProxy: WARNING! Cache file '" << control -> PersistentCachePath
<< "/" << control -> PersistentCacheName << "' not loaded.\n"
<< logofs_flush;
#endif
//
// Remove the cache file.
//
#ifdef WARNING
*logofs << "ServerProxy: WARNING! Removing supposedly "
<< "incompatible cache '" << control -> PersistentCachePath
<< "/" << control -> PersistentCacheName
<< "'.\n" << logofs_flush;
#endif
handleResetPersistentCache();
}
return 1;
}
