void fire_delegate_operation::evaluate( transaction_evaluation_state& eval_state )
{ try {
auto delegate_record = eval_state._current_state->get_account_record( this->delegate_id );
if( !delegate_record ) FC_CAPTURE_AND_THROW( unknown_account_id, (delegate_id) );
if( !delegate_record->is_delegate() ) FC_CAPTURE_AND_THROW( not_a_delegate, (delegate_record) );
switch( (fire_delegate_operation::reason_type)this->reason )
{
case fire_delegate_operation::multiple_blocks_signed:
{
auto proof = fc::raw::unpack<multiple_block_proof>( this->data );
FC_ASSERT( proof.first.id() != proof.second.id() );
FC_ASSERT( proof.first.timestamp == proof.second.timestamp )
FC_ASSERT( proof.first.signee() == proof.second.signee() )
FC_ASSERT( proof.first.validate_signee( delegate_record->active_key() ) );
// then fire the delegate
// this maintains the invariant of total votes == total shares
delegate_record->adjust_votes_against( delegate_record->votes_for() );
delegate_record->adjust_votes_for( -delegate_record->votes_for() );
eval_state._current_state->store_account_record( *delegate_record );
break;
}
case fire_delegate_operation::invalid_testimony:
{
auto testimony = fc::raw::unpack<signed_delegate_testimony>( this->data );
bool is_delegates_key = false;
auto signee = testimony.signee();
for( auto key : delegate_record->active_key_history )
{
if( signee == key.second )
{
is_delegates_key = true;
break;
}
}
if( !is_delegates_key ) FC_CAPTURE_AND_THROW( not_a_delegate_signature, (signee)(delegate_record) );
auto trx_loc = eval_state._current_state->get_transaction( testimony.transaction_id );
// delegate said it was valid, but it is invalid
if( !trx_loc && testimony.valid )
{
delegate_record->adjust_votes_against( delegate_record->votes_for() );
delegate_record->adjust_votes_for( -delegate_record->votes_for() );
eval_state._current_state->store_account_record( *delegate_record );
}
else
{
FC_CAPTURE_AND_THROW( invalid_fire_operation );
}
break;
}
}
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void transaction_evaluation_state::update_delegate_votes()
{
auto asset_rec = _current_state->get_asset_record( BASE_ASSET_ID );
auto max_votes = 2 * (asset_rec->current_share_supply / BTS_BLOCKCHAIN_NUM_DELEGATES);
for( auto del_vote : net_delegate_votes )
{
auto del_rec = _current_state->get_name_record( del_vote.first );
FC_ASSERT( !!del_rec );
del_rec->adjust_votes_for( del_vote.second.votes_for );
del_rec->adjust_votes_against( del_vote.second.votes_against );
if( del_rec->votes_for() > max_votes || del_rec->votes_against() > max_votes )
fail( BTS_DELEGATE_MAX_VOTE_LIMIT, fc::variant() );
_current_state->store_name_record( *del_rec );
}
}