diff --git a/ethcore/res/ethereum/byzantium_test.json b/ethcore/res/ethereum/byzantium_test.json index 90c92bbff..4bc9565bc 100644 --- a/ethcore/res/ethereum/byzantium_test.json +++ b/ethcore/res/ethereum/byzantium_test.json @@ -6,11 +6,12 @@ "minimumDifficulty": "0x020000", "difficultyBoundDivisor": "0x0800", "durationLimit": "0x0d", - "blockReward": "0x4563918244F40000", + "blockReward": "0x29A2241AF62C0000", "homesteadTransition": "0x0", - "eip649Reward": "0x29A2241AF62C0000", "eip100bTransition": "0x0", - "eip649Transition": "0x0" + "difficultyBombDelays": { + "0": 3000000 + } } } }, diff --git a/ethcore/res/ethereum/constantinople_test.json b/ethcore/res/ethereum/constantinople_test.json index 9e7df1f7f..7b153d3f4 100644 --- a/ethcore/res/ethereum/constantinople_test.json +++ b/ethcore/res/ethereum/constantinople_test.json @@ -6,11 +6,12 @@ "minimumDifficulty": "0x020000", "difficultyBoundDivisor": "0x0800", "durationLimit": "0x0d", - "blockReward": "0x4563918244F40000", + "blockReward": "0x29A2241AF62C0000", "homesteadTransition": "0x0", - "eip649Reward": "0x29A2241AF62C0000", "eip100bTransition": "0x0", - "eip649Transition": "0x0" + "difficultyBombDelays": { + "0": 3000000 + } } } }, diff --git a/ethcore/res/ethereum/expanse.json b/ethcore/res/ethereum/expanse.json index 76ce0b0c5..4c108d4de 100644 --- a/ethcore/res/ethereum/expanse.json +++ b/ethcore/res/ethereum/expanse.json @@ -8,15 +8,19 @@ "difficultyBoundDivisor": "0x0800", "difficultyIncrementDivisor": "0x3C", "durationLimit": "0x3C", - "blockReward": "0x6f05b59d3b200000", + "blockReward": { + "0x0": "0x6f05b59d3b200000", + "0xC3500": "0x3782DACE9D900000" + }, "homesteadTransition": "0x30d40", "difficultyHardforkTransition": "0x59d9", "difficultyHardforkBoundDivisor": "0x0200", "bombDefuseTransition": "0x30d40", "eip100bTransition": "0xC3500", "metropolisDifficultyIncrementDivisor": "0x1E", - "eip649Transition": "0xC3500", - "eip649Reward": "0x3782DACE9D900000", + "difficultyBombDelays": { + "0xC3500": 3000000 + }, "expip2Transition": "0xC3500", "expip2DurationLimit": "0x1E" } diff --git a/ethcore/res/ethereum/foundation.json b/ethcore/res/ethereum/foundation.json index 59e8daa8c..4b11041a8 100644 --- a/ethcore/res/ethereum/foundation.json +++ b/ethcore/res/ethereum/foundation.json @@ -7,7 +7,10 @@ "minimumDifficulty": "0x020000", "difficultyBoundDivisor": "0x0800", "durationLimit": "0x0d", - "blockReward": "0x4563918244F40000", + "blockReward": { + "0": "0x4563918244F40000", + "4370000": "0x29A2241AF62C0000" + }, "homesteadTransition": "0x118c30", "daoHardforkTransition": "0x1d4c00", "daoHardforkBeneficiary": "0xbf4ed7b27f1d666546e30d74d50d173d20bca754", @@ -129,9 +132,10 @@ "0xbb9bc244d798123fde783fcc1c72d3bb8c189413", "0x807640a13483f8ac783c557fcdf27be11ea4ac7a" ], - "eip649Reward": "0x29A2241AF62C0000", "eip100bTransition": 4370000, - "eip649Transition": 4370000 + "difficultyBombDelays": { + "4370000": 3000000 + } } } }, diff --git a/ethcore/res/ethereum/mcip3_test.json b/ethcore/res/ethereum/mcip3_test.json index d24164dcf..705928c1e 100644 --- a/ethcore/res/ethereum/mcip3_test.json +++ b/ethcore/res/ethereum/mcip3_test.json @@ -9,7 +9,6 @@ "durationLimit":"0x0d", "homesteadTransition":"0x118c30", "eip100bTransition":"0x7fffffffffffff", - "eip649Transition":"0x7fffffffffffff", "blockReward":"0x1105a0185b50a80000", "mcip3Transition":"0x00", "mcip3MinerReward":"0xd8d726b7177a80000", diff --git a/ethcore/res/ethereum/mcip6_byz.json b/ethcore/res/ethereum/mcip6_byz.json index 45aef8b4b..e23b4ebfb 100644 --- a/ethcore/res/ethereum/mcip6_byz.json +++ b/ethcore/res/ethereum/mcip6_byz.json @@ -1,157 +1,159 @@ { - "name":"Musicoin Byzantium Test", - "dataDir":"mcip6test", - "engine":{ - "Ethash":{ - "params":{ - "minimumDifficulty":"0x020000", - "difficultyBoundDivisor":"0x0800", - "durationLimit":"0x0d", - "homesteadTransition":"0x17", - "eip100bTransition":"0x2a", - "eip649Transition":"0x2a", - "blockReward":"0x1105a0185b50a80000", - "mcip3Transition":"0x17", - "mcip3MinerReward":"0xd8d726b7177a80000", - "mcip3UbiReward":"0x2b5e3af16b1880000", - "mcip3UbiContract":"0x00efdd5883ec628983e9063c7d969fe268bbf310", - "mcip3DevReward":"0xc249fdd327780000", - "mcip3DevContract":"0x00756cf8159095948496617f5fb17ed95059f536" + "name": "Musicoin Byzantium Test", + "dataDir": "mcip6test", + "engine": { + "Ethash": { + "params": { + "minimumDifficulty": "0x020000", + "difficultyBoundDivisor": "0x0800", + "durationLimit": "0x0d", + "homesteadTransition": "0x17", + "eip100bTransition": "0x2a", + "blockReward": "0x1105a0185b50a80000", + "mcip3Transition": "0x17", + "mcip3MinerReward": "0xd8d726b7177a80000", + "mcip3UbiReward": "0x2b5e3af16b1880000", + "mcip3UbiContract": "0x00efdd5883ec628983e9063c7d969fe268bbf310", + "mcip3DevReward": "0xc249fdd327780000", + "mcip3DevContract": "0x00756cf8159095948496617f5fb17ed95059f536", + "difficultyBombDelays": { + "0x2a": 3000000 + } } } }, - "params":{ - "gasLimitBoundDivisor":"0x0400", - "registrar":"0x5C271c4C9A67E7D73b7b3669d47504741354f21D", - "accountStartNonce":"0x00", - "maximumExtraDataSize":"0x20", - "minGasLimit":"0x1388", - "networkID":"0x76740c", - "forkBlock":"0x2b", - "forkCanonHash":"0x23c3171e864a5d513a3ef85e4cf86dac4cc36b89e5b8e63bf0ebcca68b9e43c9", - "eip150Transition":"0x2a", - "eip160Transition":"0x7fffffffffffff", - "eip161abcTransition":"0x7fffffffffffff", - "eip161dTransition":"0x7fffffffffffff", - "eip98Transition":"0x7fffffffffffff", - "eip140Transition":"0x2a", - "eip155Transition":"0x2a", - "eip211Transition":"0x2a", - "eip214Transition":"0x2a", - "eip658Transition":"0x2a", - "maxCodeSize":"0x6000", + "params": { + "gasLimitBoundDivisor": "0x0400", + "registrar": "0x5C271c4C9A67E7D73b7b3669d47504741354f21D", + "accountStartNonce": "0x00", + "maximumExtraDataSize": "0x20", + "minGasLimit": "0x1388", + "networkID": "0x76740c", + "forkBlock": "0x2b", + "forkCanonHash": "0x23c3171e864a5d513a3ef85e4cf86dac4cc36b89e5b8e63bf0ebcca68b9e43c9", + "eip150Transition": "0x2a", + "eip160Transition": "0x7fffffffffffff", + "eip161abcTransition": "0x7fffffffffffff", + "eip161dTransition": "0x7fffffffffffff", + "eip98Transition": "0x7fffffffffffff", + "eip140Transition": "0x2a", + "eip155Transition": "0x2a", + "eip211Transition": "0x2a", + "eip214Transition": "0x2a", + "eip658Transition": "0x2a", + "maxCodeSize": "0x6000", "maxCodeSizeTransition": "0x7fffffffffffff" }, - "genesis":{ - "seal":{ - "ethereum":{ - "nonce":"0x000000000000002a", - "mixHash":"0x00000000000000000000000000000000000000647572616c65787365646c6578" + "genesis": { + "seal": { + "ethereum": { + "nonce": "0x000000000000002a", + "mixHash": "0x00000000000000000000000000000000000000647572616c65787365646c6578" } }, - "difficulty":"0x3d0900", - "author":"0x0000000000000000000000000000000000000000", - "timestamp":"0x00", - "parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000", - "extraData":"", - "gasLimit":"0x7a1200" + "difficulty": "0x3d0900", + "author": "0x0000000000000000000000000000000000000000", + "timestamp": "0x00", + "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000", + "extraData": "", + "gasLimit": "0x7a1200" }, - "nodes":[ + "nodes": [ "enode://5ddc110733f6d34101973cdef3f9b43484159acf6f816d3b1ee92bc3c98ea453e857bb1207edf0ec0242008ab3a0f9f05eeaee99d47bd414c08a5bdf4847de13@176.9.3.148:30303", "enode://38f074f4db8e64dfbaf87984bf290eef67772a901a7113d1b62f36216be152b8450c393d6fc562a5e38f04f99bc8f439a99010a230b1d92dc1df43bf0bd00615@176.9.3.148:30403" ], - 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"balance":"1", - "builtin":{ - "name":"identity", - "pricing":{ - "linear":{ - "base":15, - "word":3 + "0000000000000000000000000000000000000004": { + "balance": "1", + "builtin": { + "name": "identity", + "pricing": { + "linear": { + "base": 15, + "word": 3 } } } }, - "0000000000000000000000000000000000000005":{ - "builtin":{ - "name":"modexp", - "activate_at":"0x2a", - "pricing":{ - "modexp":{ - "divisor":20 + "0000000000000000000000000000000000000005": { + "builtin": { + "name": "modexp", + "activate_at": "0x2a", + "pricing": { + "modexp": { + "divisor": 20 } } } }, - "0000000000000000000000000000000000000006":{ - "builtin":{ - "name":"alt_bn128_add", - "activate_at":"0x2a", - "pricing":{ - "linear":{ - "base":500, - "word":0 + "0000000000000000000000000000000000000006": { + "builtin": { + "name": "alt_bn128_add", + "activate_at": "0x2a", + "pricing": { + "linear": { + "base": 500, + "word": 0 } } } }, - "0000000000000000000000000000000000000007":{ - "builtin":{ - "name":"alt_bn128_mul", - "activate_at":"0x2a", - "pricing":{ - "linear":{ - "base":40000, - "word":0 + "0000000000000000000000000000000000000007": { + "builtin": { + "name": "alt_bn128_mul", + "activate_at": "0x2a", + "pricing": { + "linear": { + "base": 40000, + "word": 0 } } } }, - "0000000000000000000000000000000000000008":{ - "builtin":{ - "name":"alt_bn128_pairing", - "activate_at":"0x2a", - "pricing":{ - "alt_bn128_pairing":{ - "base":100000, - "pair":80000 + "0000000000000000000000000000000000000008": { + "builtin": { + "name": "alt_bn128_pairing", + "activate_at": "0x2a", + "pricing": { + "alt_bn128_pairing": { + "base": 100000, + "pair": 80000 } } } diff --git a/ethcore/res/ethereum/musicoin.json b/ethcore/res/ethereum/musicoin.json index fca6a8962..534883cc3 100644 --- a/ethcore/res/ethereum/musicoin.json +++ b/ethcore/res/ethereum/musicoin.json @@ -9,14 +9,16 @@ "durationLimit":"0x0d", "homesteadTransition":"0x118c30", "eip100bTransition":"0x21e88e", - "eip649Transition":"0x21e88e", "blockReward":"0x1105a0185b50a80000", "mcip3Transition":"0x124f81", "mcip3MinerReward":"0xd8d726b7177a80000", "mcip3UbiReward":"0x2b5e3af16b1880000", "mcip3UbiContract":"0x00efdd5883ec628983e9063c7d969fe268bbf310", "mcip3DevReward":"0xc249fdd327780000", - "mcip3DevContract":"0x00756cf8159095948496617f5fb17ed95059f536" + "mcip3DevContract":"0x00756cf8159095948496617f5fb17ed95059f536", + "difficultyBombDelays": { + "0x21e88e": 3000000 + } } } }, diff --git a/ethcore/res/ethereum/ropsten.json b/ethcore/res/ethereum/ropsten.json index fd24bbe6d..3f938042f 100644 --- a/ethcore/res/ethereum/ropsten.json +++ b/ethcore/res/ethereum/ropsten.json @@ -7,11 +7,15 @@ "minimumDifficulty": "0x020000", "difficultyBoundDivisor": "0x0800", "durationLimit": "0x0d", - "blockReward": "0x4563918244F40000", + "blockReward": { + "0": "0x4563918244F40000", + "1700000": "0x29A2241AF62C0000" + }, "homesteadTransition": 0, - "eip649Reward": "0x29A2241AF62C0000", "eip100bTransition": 1700000, - "eip649Transition": 1700000 + "difficultyBombDelays": { + "1700000": 3000000 + } } } }, diff --git a/ethcore/res/ethereum/transition_test.json b/ethcore/res/ethereum/transition_test.json index 9dc00fd5d..3f1c420dd 100644 --- a/ethcore/res/ethereum/transition_test.json +++ b/ethcore/res/ethereum/transition_test.json @@ -6,11 +6,15 @@ "minimumDifficulty": "0x020000", "difficultyBoundDivisor": "0x0800", "durationLimit": "0x0d", - "blockReward": "0x4563918244F40000", + "blockReward": { + "0x0": "0x4563918244F40000", + "0x5": "0x29A2241AF62C0000" + }, "homesteadTransition": "0", - "eip649Reward": "0x29A2241AF62C0000", "eip100bTransition": "5", - "eip649Transition": "5" + "difficultyBombDelays": { + "5": 3000000 + } } } }, diff --git a/ethcore/src/ethereum/ethash.rs b/ethcore/src/ethereum/ethash.rs index 6afc65a11..3bb563157 100644 --- a/ethcore/src/ethereum/ethash.rs +++ b/ethcore/src/ethereum/ethash.rs @@ -37,8 +37,6 @@ const SNAPSHOT_BLOCKS: u64 = 5000; /// Maximum number of blocks allowed in an ethash snapshot. const MAX_SNAPSHOT_BLOCKS: u64 = 30000; -const DEFAULT_EIP649_DELAY: u64 = 3_000_000; - /// Ethash specific seal #[derive(Debug, PartialEq)] pub struct Seal { @@ -113,13 +111,7 @@ pub struct EthashParams { /// MCIP-3 contract address for the developer funds. pub mcip3_dev_contract: Address, /// Block reward in base units. - pub block_reward: U256, - /// EIP-649 transition block. - pub eip649_transition: u64, - /// EIP-649 bomb delay. - pub eip649_delay: u64, - /// EIP-649 base reward. - pub eip649_reward: Option, + pub block_reward: BTreeMap, /// EXPIP-2 block height pub expip2_transition: u64, /// EXPIP-2 duration limit @@ -128,6 +120,8 @@ pub struct EthashParams { pub block_reward_contract_transition: u64, /// Block reward contract. pub block_reward_contract: Option, + /// Difficulty bomb delays. + pub difficulty_bomb_delays: BTreeMap, } impl From for EthashParams { @@ -152,10 +146,26 @@ impl From for EthashParams { mcip3_ubi_contract: p.mcip3_ubi_contract.map_or_else(Address::new, Into::into), mcip3_dev_reward: p.mcip3_dev_reward.map_or(U256::from(0), Into::into), mcip3_dev_contract: p.mcip3_dev_contract.map_or_else(Address::new, Into::into), - block_reward: p.block_reward.map_or_else(Default::default, Into::into), - eip649_transition: p.eip649_transition.map_or(u64::max_value(), Into::into), - eip649_delay: p.eip649_delay.map_or(DEFAULT_EIP649_DELAY, Into::into), - eip649_reward: p.eip649_reward.map(Into::into), + block_reward: p.block_reward.map_or_else( + || { + let mut ret = BTreeMap::new(); + ret.insert(0, U256::zero()); + ret + }, + |reward| { + match reward { + ethjson::spec::BlockReward::Single(reward) => { + let mut ret = BTreeMap::new(); + ret.insert(0, reward.into()); + ret + }, + ethjson::spec::BlockReward::Multi(multi) => { + multi.into_iter() + .map(|(block, reward)| (block.into(), reward.into())) + .collect() + }, + } + }), expip2_transition: p.expip2_transition.map_or(u64::max_value(), Into::into), expip2_duration_limit: p.expip2_duration_limit.map_or(30, Into::into), block_reward_contract_transition: p.block_reward_contract_transition.map_or(0, Into::into), @@ -164,6 +174,9 @@ impl From for EthashParams { (_, Some(address)) => Some(BlockRewardContract::new_from_address(address.into())), (None, None) => None, }, + difficulty_bomb_delays: p.difficulty_bomb_delays.unwrap_or_default().into_iter() + .map(|(block, delay)| (block.into(), delay.into())) + .collect() } } } @@ -259,12 +272,11 @@ impl Engine for Arc { _ => { let mut rewards = Vec::new(); - // Applies EIP-649 reward. - let reward = if number >= self.ethash_params.eip649_transition { - self.ethash_params.eip649_reward.unwrap_or(self.ethash_params.block_reward) - } else { - self.ethash_params.block_reward - }; + let (_, reward) = self.ethash_params.block_reward.iter() + .rev() + .find(|&(block, _)| *block <= number) + .expect("Current block's reward is not found; this indicates a chain config error; qed"); + let reward = *reward; // Applies ECIP-1017 eras. let eras_rounds = self.ethash_params.ecip1017_era_rounds; @@ -457,19 +469,20 @@ impl Ethash { if header.number() < self.ethash_params.bomb_defuse_transition { if header.number() < self.ethash_params.ecip1010_pause_transition { let mut number = header.number(); - if number >= self.ethash_params.eip649_transition { - number = number.saturating_sub(self.ethash_params.eip649_delay); + let original_number = number; + for (block, delay) in &self.ethash_params.difficulty_bomb_delays { + if original_number >= *block { + number = number.saturating_sub(*delay); + } } let period = (number / EXP_DIFF_PERIOD) as usize; if period > 1 { target = cmp::max(min_difficulty, target + (U256::from(1) << (period - 2))); } - } - else if header.number() < self.ethash_params.ecip1010_continue_transition { + } else if header.number() < self.ethash_params.ecip1010_continue_transition { let fixed_difficulty = ((self.ethash_params.ecip1010_pause_transition / EXP_DIFF_PERIOD) - 2) as usize; target = cmp::max(min_difficulty, target + (U256::from(1) << fixed_difficulty)); - } - else { + } else { let period = ((parent.number() + 1) / EXP_DIFF_PERIOD) as usize; let delay = ((self.ethash_params.ecip1010_continue_transition - self.ethash_params.ecip1010_pause_transition) / EXP_DIFF_PERIOD) as usize; target = cmp::max(min_difficulty, target + (U256::from(1) << (period - delay - 2))); @@ -498,6 +511,7 @@ fn ecip1017_eras_block_reward(era_rounds: u64, mut reward: U256, block_number:u6 mod tests { use std::str::FromStr; use std::sync::Arc; + use std::collections::BTreeMap; use ethereum_types::{H64, H256, U256, Address}; use block::*; use test_helpers::get_temp_state_db; @@ -523,7 +537,11 @@ mod tests { metropolis_difficulty_increment_divisor: 9, homestead_transition: 1150000, duration_limit: 13, - block_reward: 0.into(), + block_reward: { + let mut ret = BTreeMap::new(); + ret.insert(0, 0.into()); + ret + }, difficulty_hardfork_transition: u64::max_value(), difficulty_hardfork_bound_divisor: U256::from(0), bomb_defuse_transition: u64::max_value(), @@ -537,13 +555,11 @@ mod tests { mcip3_ubi_contract: "0000000000000000000000000000000000000001".into(), mcip3_dev_reward: 0.into(), mcip3_dev_contract: "0000000000000000000000000000000000000001".into(), - eip649_transition: u64::max_value(), - eip649_delay: 3_000_000, - eip649_reward: None, expip2_transition: u64::max_value(), expip2_duration_limit: 30, block_reward_contract: None, block_reward_contract_transition: 0, + difficulty_bomb_delays: BTreeMap::new(), } } diff --git a/json/src/spec/ethash.rs b/json/src/spec/ethash.rs index 95c5eeff3..ee985fe1c 100644 --- a/json/src/spec/ethash.rs +++ b/json/src/spec/ethash.rs @@ -16,10 +16,19 @@ //! Ethash params deserialization. +use std::collections::BTreeMap; use uint::{self, Uint}; use bytes::Bytes; use hash::Address; +/// Deserializable doppelganger of block rewards for EthashParams +#[derive(Clone, Debug, PartialEq, Deserialize)] +#[serde(untagged)] +pub enum BlockReward { + Single(Uint), + Multi(BTreeMap), +} + /// Deserializable doppelganger of EthashParams. #[derive(Clone, Debug, PartialEq, Deserialize)] pub struct EthashParams { @@ -48,7 +57,7 @@ pub struct EthashParams { pub homestead_transition: Option, /// Reward per block in wei. #[serde(rename="blockReward")] - pub block_reward: Option, + pub block_reward: Option, /// Block at which the block reward contract should start being used. #[serde(rename="blockRewardContractTransition")] pub block_reward_contract_transition: Option, @@ -115,22 +124,13 @@ pub struct EthashParams { #[serde(rename="mcip3DevContract")] pub mcip3_dev_contract: Option
, - /// EIP-649 transition block. - #[serde(rename="eip649Transition")] - pub eip649_transition: Option, - - /// EIP-649 bomb delay. - #[serde(rename="eip649Delay")] - pub eip649_delay: Option, - - /// EIP-649 base reward. - #[serde(rename="eip649Reward")] - pub eip649_reward: Option, + /// Delays of difficulty bombs. + #[serde(rename="difficultyBombDelays")] + pub difficulty_bomb_delays: Option>, /// EXPIP-2 block height #[serde(rename="expip2Transition")] pub expip2_transition: Option, - /// EXPIP-2 duration limit #[serde(rename="expip2DurationLimit")] pub expip2_duration_limit: Option, @@ -149,7 +149,7 @@ mod tests { use uint::Uint; use ethereum_types::{H160, U256}; use hash::Address; - use spec::ethash::{Ethash, EthashParams}; + use spec::ethash::{Ethash, EthashParams, BlockReward}; #[test] fn ethash_deserialization() { @@ -201,7 +201,7 @@ mod tests { metropolis_difficulty_increment_divisor: None, duration_limit: Some(Uint(U256::from(0x0d))), homestead_transition: Some(Uint(U256::from(0x42))), - block_reward: Some(Uint(U256::from(0x100))), + block_reward: Some(BlockReward::Single(Uint(U256::from(0x100)))), block_reward_contract_address: None, block_reward_contract_code: None, block_reward_contract_transition: None, @@ -242,11 +242,9 @@ mod tests { mcip3_ubi_contract: None, mcip3_dev_reward: None, mcip3_dev_contract: None, - eip649_transition: None, - eip649_delay: None, - eip649_reward: None, expip2_transition: None, expip2_duration_limit: None, + difficulty_bomb_delays: None, } }); } @@ -289,11 +287,9 @@ mod tests { mcip3_ubi_contract: None, mcip3_dev_reward: None, mcip3_dev_contract: None, - eip649_transition: None, - eip649_delay: None, - eip649_reward: None, expip2_transition: None, expip2_duration_limit: None, + difficulty_bomb_delays: None, } }); } diff --git a/json/src/spec/mod.rs b/json/src/spec/mod.rs index c4b10afbd..9adbc1fe1 100644 --- a/json/src/spec/mod.rs +++ b/json/src/spec/mod.rs @@ -41,7 +41,7 @@ pub use self::spec::Spec; pub use self::seal::{Seal, Ethereum, AuthorityRoundSeal, TendermintSeal}; pub use self::engine::Engine; pub use self::state::State; -pub use self::ethash::{Ethash, EthashParams}; +pub use self::ethash::{Ethash, EthashParams, BlockReward}; pub use self::validator_set::ValidatorSet; pub use self::basic_authority::{BasicAuthority, BasicAuthorityParams}; pub use self::authority_round::{AuthorityRound, AuthorityRoundParams};