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fix: ensure minimum non-dust amount as change output on regtest #5008

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merged 7 commits into from
Jul 31, 2024
Merged

fix: ensure minimum non-dust amount as change output on regtest #5008

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030fa64
fix: ensure minimum non-dust amount as change output on regtest
janniks Jul 26, 2024
93e32a8
Merge branch 'develop' into 07-25-fix_ensure_minimum_non-dust_amount_…
janniks Jul 29, 2024
585972e
Merge branch 'develop' into 07-25-fix_ensure_minimum_non-dust_amount_…
janniks Jul 30, 2024
df7e9e1
fix: update max_tx_sizes for regtest ops
janniks Jul 30, 2024
eb80166
refactor: update estimated tx size consts
janniks Jul 30, 2024
0468efd
chore: remove unused import
janniks Jul 30, 2024
9e9aa77
fix: only force change output for block commits
janniks Jul 30, 2024
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43 changes: 29 additions & 14 deletions testnet/stacks-node/src/burnchains/bitcoin_regtest_controller.rs
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,11 @@ use stacks_common::util::sleep_ms;
use super::super::operations::BurnchainOpSigner;
use super::super::Config;
use super::{BurnchainController, BurnchainTip, Error as BurnchainControllerError};
use crate::config::BurnchainConfig;
use crate::config::{
BurnchainConfig, OP_TX_BLOCK_COMMIT_ESTIM_SIZE, OP_TX_DELEGATE_STACKS_ESTIM_SIZE,
OP_TX_PRE_STACKS_ESTIM_SIZE, OP_TX_STACK_STX_ESTIM_SIZE, OP_TX_TRANSFER_STACKS_ESTIM_SIZE,
OP_TX_VOTE_AGG_ESTIM_SIZE,
};

/// The number of bitcoin blocks that can have
/// passed since the UTXO cache was last refreshed before
Expand Down Expand Up @@ -950,7 +954,7 @@ impl BitcoinRegtestController {
utxo_to_use: Option<UTXO>,
) -> Option<Transaction> {
let public_key = signer.get_public_key();
let max_tx_size = 230;
let max_tx_size = OP_TX_TRANSFER_STACKS_ESTIM_SIZE;
let (mut tx, mut utxos) = if let Some(utxo) = utxo_to_use {
(
Transaction {
Expand Down Expand Up @@ -1032,7 +1036,7 @@ impl BitcoinRegtestController {
utxo_to_use: Option<UTXO>,
) -> Option<Transaction> {
let public_key = signer.get_public_key();
let max_tx_size = 230;
let max_tx_size = OP_TX_DELEGATE_STACKS_ESTIM_SIZE;

let (mut tx, mut utxos) = if let Some(utxo) = utxo_to_use {
(
Expand Down Expand Up @@ -1110,7 +1114,7 @@ impl BitcoinRegtestController {
utxo_to_use: Option<UTXO>,
) -> Option<Transaction> {
let public_key = signer.get_public_key();
let max_tx_size = 230;
let max_tx_size = OP_TX_VOTE_AGG_ESTIM_SIZE;

let (mut tx, mut utxos) = if let Some(utxo) = utxo_to_use {
(
Expand Down Expand Up @@ -1204,9 +1208,11 @@ impl BitcoinRegtestController {
signer: &mut BurnchainOpSigner,
) -> Option<Transaction> {
let public_key = signer.get_public_key();
let max_tx_size = 280;
let max_tx_size = OP_TX_PRE_STACKS_ESTIM_SIZE;

let max_tx_size_any_op = 380;
let output_amt = DUST_UTXO_LIMIT + max_tx_size_any_op * get_satoshis_per_byte(&self.config);

let output_amt = DUST_UTXO_LIMIT + max_tx_size * get_satoshis_per_byte(&self.config);
let (mut tx, mut utxos) =
self.prepare_tx(epoch_id, &public_key, output_amt, None, None, 0)?;

Expand Down Expand Up @@ -1271,7 +1277,7 @@ impl BitcoinRegtestController {
utxo_to_use: Option<UTXO>,
) -> Option<Transaction> {
let public_key = signer.get_public_key();
let max_tx_size = 250;
let max_tx_size = OP_TX_STACK_STX_ESTIM_SIZE;

let (mut tx, mut utxos) = if let Some(utxo) = utxo_to_use {
(
Expand Down Expand Up @@ -1715,6 +1721,7 @@ impl BitcoinRegtestController {
spent_in_outputs + min_tx_size * fee_rate + estimated_rbf,
&mut utxos_cloned,
signer,
true,
);
let serialized_tx = SerializedTx::new(tx_cloned);
cmp::max(min_tx_size, serialized_tx.bytes.len() as u64)
Expand All @@ -1731,6 +1738,7 @@ impl BitcoinRegtestController {
spent_in_outputs + tx_size * fee_rate + rbf_fee,
utxos_set,
signer,
true,
);
signer.dispose();
Some(())
Expand All @@ -1744,38 +1752,45 @@ impl BitcoinRegtestController {
&mut self,
epoch_id: StacksEpochId,
tx: &mut Transaction,
total_to_spend: u64,
tx_cost: u64,
utxos_set: &mut UTXOSet,
signer: &mut BurnchainOpSigner,
force_change_output: bool,
) -> bool {
let mut public_key = signer.get_public_key();
let mut total_consumed = 0;

let total_target = if force_change_output {
tx_cost + DUST_UTXO_LIMIT
} else {
tx_cost
};

// select UTXOs until we have enough to cover the cost
let mut total_consumed = 0;
let mut available_utxos = vec![];
available_utxos.append(&mut utxos_set.utxos);
for utxo in available_utxos.into_iter() {
total_consumed += utxo.amount;
utxos_set.utxos.push(utxo);

if total_consumed >= total_to_spend {
if total_consumed >= total_target {
break;
}
}

if total_consumed < total_to_spend {
if total_consumed < total_target {
warn!(
"Consumed total {} is less than intended spend: {}",
total_consumed, total_to_spend
total_consumed, total_target
);
return false;
}

// Append the change output
let value = total_consumed - total_to_spend;
let value = total_consumed - tx_cost;
debug!(
"Payments value: {:?}, total_consumed: {:?}, total_spent: {:?}",
value, total_consumed, total_to_spend
value, total_consumed, total_target
);
if value >= DUST_UTXO_LIMIT {
let change_output = if self.config.miner.segwit && epoch_id >= StacksEpochId::Epoch21 {
Expand Down
14 changes: 10 additions & 4 deletions testnet/stacks-node/src/config.rs
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -49,10 +49,16 @@ use stacks_common::util::secp256k1::{Secp256k1PrivateKey, Secp256k1PublicKey};
use crate::chain_data::MinerStats;

pub const DEFAULT_SATS_PER_VB: u64 = 50;
pub const OP_TX_LEADER_KEY_ESTIM_SIZE: u64 = 290;
pub const OP_TX_BLOCK_COMMIT_ESTIM_SIZE: u64 = 350;
pub const OP_TX_TRANSFER_STACKS_ESTIM_SIZE: u64 = 230;
pub const OP_TX_DELEGATE_STACKS_ESTIM_SIZE: u64 = 230;
pub const OP_TX_VOTE_AGG_ESTIM_SIZE: u64 = 230;
pub const OP_TX_PRE_STACKS_ESTIM_SIZE: u64 = 280;
pub const OP_TX_STACK_STX_ESTIM_SIZE: u64 = 250;

const DEFAULT_MAX_RBF_RATE: u64 = 150; // 1.5x
const DEFAULT_RBF_FEE_RATE_INCREMENT: u64 = 5;
const LEADER_KEY_TX_ESTIM_SIZE: u64 = 290;
const BLOCK_COMMIT_TX_ESTIM_SIZE: u64 = 350;
const INV_REWARD_CYCLES_TESTNET: u64 = 6;

#[derive(Clone, Deserialize, Default, Debug)]
Expand Down Expand Up @@ -1427,8 +1433,8 @@ impl BurnchainConfig {
poll_time_secs: 10, // TODO: this is a testnet specific value.
satoshis_per_byte: DEFAULT_SATS_PER_VB,
max_rbf: DEFAULT_MAX_RBF_RATE,
leader_key_tx_estimated_size: LEADER_KEY_TX_ESTIM_SIZE,
block_commit_tx_estimated_size: BLOCK_COMMIT_TX_ESTIM_SIZE,
leader_key_tx_estimated_size: OP_TX_LEADER_KEY_ESTIM_SIZE,
block_commit_tx_estimated_size: OP_TX_BLOCK_COMMIT_ESTIM_SIZE,
rbf_fee_increment: DEFAULT_RBF_FEE_RATE_INCREMENT,
first_burn_block_height: None,
first_burn_block_timestamp: None,
Expand Down