/**
* Received in response to get_headers message, we should certify that we requested this.
*/
void handle_headers( const connection_ptr& con, chan_data& cdat, const headers_message& msg )
{ try {
FC_ASSERT( !!cdat.requested_headers );
cdat.requested_headers.reset();
// TODO: validate that all ids reported have the min proof of work for a name.
ilog( "received ${x} block headers", ("msg",msg.headers.size() ) );
_fork_db.cache_header( msg.first );
_new_block_info = true;
name_id_type prev_id = msg.first.id();
for( auto itr = msg.headers.begin(); itr != msg.headers.end(); ++itr )
{
name_header next_head( *itr, prev_id );
ilog( "${id} = ${next_head}", ("id",next_head.id())("next_head",next_head) );
_fork_db.cache_header( next_head );
prev_id = next_head.id();
if( prev_id > max_name_hash() )
{
// then we should disconnect....
wlog( "node produced name header with insufficient minimum work" );
con->close();
return;
}
cdat.available_blocks.insert(prev_id);
}
if( prev_id != msg.head_block_id )
{
cdat.requested_headers = fc::time_point::now();
get_headers_message request;
request.locator_hashes.push_back( prev_id );
con->send( network::message( request, _chan_id ) );
}
} FC_RETHROW_EXCEPTIONS( warn, "", ("msg",msg) ) }
uint64_t min_name_difficulty()
{
return difficulty(max_name_hash());
}