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Throw for deep nesting

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Peter Conrad 2018-08-11 16:33:30 +02:00 committed by gladcow
parent 8544896e6c
commit 819e1d25b2
1 changed files with 16 additions and 2 deletions
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18
libraries/chain/db_block.cpp
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@ -336,6 +336,8 @@ processed_transaction database::validate_transaction( const signed_transaction&
processed_transaction database::push_proposal(const proposal_object& proposal)
{ try {
FC_ASSERT( _undo_db.size() < _undo_db.max_size(), "Undo database is full!" );
transaction_evaluation_state eval_state(this);
eval_state._is_proposed_trx = true;
@ -345,8 +347,6 @@ processed_transaction database::push_proposal(const proposal_object& proposal)
size_t old_applied_ops_size = _applied_ops.size();
try {
if( _undo_db.size() >= _undo_db.max_size() )
_undo_db.set_max_size( _undo_db.size() + 1 );
auto session = _undo_db.start_undo_session(true);
for( auto& op : proposal.proposed_transaction.operations )
eval_state.operation_results.emplace_back(apply_operation(eval_state, op));
@ -673,6 +673,19 @@ processed_transaction database::apply_transaction(const signed_transaction& trx,
return result;
}
class undo_size_restorer {
public:
undo_size_restorer( undo_database& db ) : _db( db ), old_max( db.max_size() ) {
_db.set_max_size( old_max * 2 );
}
~undo_size_restorer() {
_db.set_max_size( old_max );
}
private:
undo_database& _db;
size_t old_max;
};
processed_transaction database::_apply_transaction(const signed_transaction& trx)
{ try {
uint32_t skip = get_node_properties().skip_flags;
@ -731,6 +744,7 @@ processed_transaction database::_apply_transaction(const signed_transaction& trx
eval_state.operation_results.reserve(trx.operations.size());
const undo_size_restorer undo_guard( _undo_db );
//Finally process the operations
processed_transaction ptrx(trx);
_current_op_in_trx = 0;