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wallet: handle 0 change properly 

With RCT, we allow 0 size outputs, to try and encourage txes
with two inputs and two outputs. Consolidation would then
have two non zero inputs, one zero output, and one larger
output.
This commit is contained in:
moneromooo-monero 2016-07-12 13:18:09 +01:00
parent e81a2b2cfa
commit 07d353dfc6
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
1 changed files with 8 additions and 7 deletions
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13
src/wallet/wallet2.cpp
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@ -228,6 +228,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
return;
}
int num_vouts_received = 0;
tx_pub_key = pub_key_field.pub_key;
bool r = true;
std::deque<cryptonote::keypair> in_ephemeral(tx.vout.size());
@ -262,6 +263,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
money_transfered = tools::decodeRct(tx.rct_signatures, rct::sk2rct(in_ephemeral[0].sec), 0, mask[0]);
amount[0] = money_transfered;
tx_money_got_in_outs = money_transfered;
++num_vouts_received;
// process the other outs from that tx
boost::asio::io_service ioservice;
@ -301,6 +303,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
money_transfered[i] = tools::decodeRct(tx.rct_signatures, rct::sk2rct(in_ephemeral[i].sec), i, mask[i]);
tx_money_got_in_outs += money_transfered[i];
amount[i] = money_transfered[i];
++num_vouts_received;
}
}
}
@ -345,6 +348,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
money_transfered[i] = tools::decodeRct(tx.rct_signatures, rct::sk2rct(in_ephemeral[i].sec), i, mask[i]);
tx_money_got_in_outs += money_transfered[i];
amount[i] = money_transfered[i];
++num_vouts_received;
}
}
}
@ -373,13 +377,14 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
money_transfered = tools::decodeRct(tx.rct_signatures, rct::sk2rct(in_ephemeral[i].sec), i, mask[i]);
amount[i] = money_transfered;
tx_money_got_in_outs += money_transfered;
++num_vouts_received;
}
}
}
}
THROW_WALLET_EXCEPTION_IF(!r, error::acc_outs_lookup_error, tx, tx_pub_key, m_account.get_keys());
if(!outs.empty() && tx_money_got_in_outs)
if(!outs.empty() && num_vouts_received > 0)
{
//good news - got money! take care about it
//usually we have only one transfer for user in transaction
@ -2969,12 +2974,8 @@ void wallet2::transfer_selected_rct(std::vector<cryptonote::tx_destination_entry
}
cryptonote::tx_destination_entry change_dts = AUTO_VAL_INIT(change_dts);
if (needed_money < found_money)
{
change_dts.addr = m_account.get_keys().m_account_address;
change_dts.amount = found_money - needed_money;
}
change_dts.amount = found_money - needed_money; // may be 0, we allow 0 change
dsts.push_back(change_dts);
crypto::secret_key tx_key;