Runaway redistribution

This commit is contained in:
Louis Holbrook 2022-05-30 07:53:22 +00:00 committed by Mohamed Sohail
parent 226f81fc5c
commit 20e3a783fd
16 changed files with 338 additions and 71 deletions

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@ -1,3 +1,7 @@
- 0.1.1
* Settable demurrage steps for apply demurrage cli tool
- 0.1.0
* Dependency upgrades
- 0.0.11 - 0.0.11
* Apply demurrage cli tool * Apply demurrage cli tool
- 0.0.10 - 0.0.10

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@ -11,6 +11,8 @@ import os
import json import json
import argparse import argparse
import logging import logging
import datetime
import math
# external imports # external imports
import confini import confini
@ -25,10 +27,16 @@ from chainlib.eth.gas import (
RPCGasOracle, RPCGasOracle,
OverrideGasOracle, OverrideGasOracle,
) )
from chainlib.eth.block import (
block_latest,
block_by_number,
Block,
)
from chainlib.eth.connection import EthHTTPConnection from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.tx import receipt from chainlib.eth.tx import receipt
from chainlib.eth.constant import ZERO_ADDRESS from chainlib.eth.constant import ZERO_ADDRESS
import chainlib.eth.cli import chainlib.eth.cli
from hexathon import to_int as hex_to_int
# local imports # local imports
import erc20_demurrage_token import erc20_demurrage_token
@ -47,8 +55,11 @@ config_dir = os.path.join(data_dir, 'config')
arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC
argparser = chainlib.eth.cli.ArgumentParser(arg_flags) argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
argparser.add_argument('--steps', type=int, default=0, help='Max demurrage steps to apply per round')
args = argparser.parse_args() args = argparser.parse_args()
config = chainlib.eth.cli.Config.from_args(args, arg_flags, default_fee_limit=DemurrageToken.gas(), base_config_dir=config_dir) config = chainlib.eth.cli.Config.from_args(args, arg_flags, default_fee_limit=DemurrageToken.gas(), base_config_dir=config_dir)
config.add(args.steps, '_STEPS', False)
logg.debug('config loaded:\n{}'.format(config))
wallet = chainlib.eth.cli.Wallet() wallet = chainlib.eth.cli.Wallet()
wallet.from_config(config) wallet.from_config(config)
@ -60,31 +71,74 @@ chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
def main(): def main():
o = block_latest()
r = conn.do(o)
block_start_number = None
try:
block_start_number = hex_to_int(r)
except TypeError:
block_start_number = int(r)
o = block_by_number(block_start_number)
r = conn.do(o)
block_start = Block(r)
block_start_timestamp = block_start.timestamp
block_start_datetime = datetime.datetime.fromtimestamp(block_start_timestamp)
gas_oracle = rpc.get_gas_oracle()
c = DemurrageToken(chain_spec, gas_oracle=gas_oracle)
o = c.demurrage_timestamp(config.get('_EXEC_ADDRESS'))
r = conn.do(o)
demurrage_timestamp = None
try:
demurrage_timestamp = hex_to_int(r)
except TypeError:
demurrage_timestamp = int(r)
demurrage_datetime = datetime.datetime.fromtimestamp(demurrage_timestamp)
total_seconds = block_start_timestamp - demurrage_timestamp
total_steps = total_seconds / 60
if total_steps < 1.0:
logg.error('only {} seconds since last demurrage application, skipping'.format(total_seconds))
return
logg.debug('block start is at {} demurrage is at {} -> {} minutes'.format(
block_start_datetime,
demurrage_datetime,
total_steps,
))
rounds = 1
if config.get('_STEPS') > 0:
rounds = math.ceil(total_steps / config.get('_STEPS'))
logg.info('will perform {} rounds of {} steps'.format(rounds, config.get('_STEPS')))
last_tx_hash = None
for i in range(rounds):
signer = rpc.get_signer() signer = rpc.get_signer()
signer_address = rpc.get_sender_address() signer_address = rpc.get_sender_address()
gas_oracle = rpc.get_gas_oracle()
nonce_oracle = rpc.get_nonce_oracle() nonce_oracle = rpc.get_nonce_oracle()
c = DemurrageToken(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle) c = DemurrageToken(chain_spec, signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle)
(tx_hash_hex, o) = c.apply_demurrage(config.get('_EXEC_ADDRESS'), signer_address) (tx_hash_hex, o) = c.apply_demurrage(config.get('_EXEC_ADDRESS'), signer_address, limit=config.get('_STEPS'))
if config.get('_RPC_SEND'): if config.get('_RPC_SEND'):
print(tx_hash_hex)
conn.do(o) conn.do(o)
if config.get('_WAIT'): if config.get('_WAIT_ALL') or (i == rounds - 1 and config.get('_WAIT')):
r = conn.wait(tx_hash_hex) r = conn.wait(tx_hash_hex)
if r['status'] == 0: if r['status'] == 0:
sys.stderr.write('EVM revert while deploying contract. Wish I had more to tell you') sys.stderr.write('EVM revert while deploying contract. Wish I had more to tell you')
sys.exit(1) sys.exit(1)
# TODO: pass through translator for keys (evm tester uses underscore instead of camelcase)
address = r['contractAddress']
print(address)
else:
print(tx_hash_hex)
else: else:
print(o) print(o)
if __name__ == '__main__': if __name__ == '__main__':
main() main()

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@ -38,6 +38,15 @@ class DemurrageTokenSettings:
self.sink_address = None self.sink_address = None
def __str__(self):
return 'name {} demurrage level {} period minutes {} sink address {}'.format(
self.name,
self.demurrage_level,
self.period_minutes,
self.sink_address,
)
class DemurrageToken(ERC20): class DemurrageToken(ERC20):
__abi = {} __abi = {}
@ -380,6 +389,10 @@ class DemurrageToken(ERC20):
return self.call_noarg('demurrageAmount', contract_address, sender_address=sender_address) return self.call_noarg('demurrageAmount', contract_address, sender_address=sender_address)
def demurrage_timestamp(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('demurrageTimestamp', contract_address, sender_address=sender_address)
def supply_cap(self, contract_address, sender_address=ZERO_ADDRESS): def supply_cap(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('supplyCap', contract_address, sender_address=sender_address) return self.call_noarg('supplyCap', contract_address, sender_address=sender_address)

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@ -32,18 +32,19 @@ PERIOD = 10
class TestTokenDeploy: class TestTokenDeploy:
def __init__(self, rpc, token_symbol='FOO', token_name='Foo Token', sink_address=ZERO_ADDRESS, supply=10**12): def __init__(self, rpc, token_symbol='FOO', token_name='Foo Token', sink_address=ZERO_ADDRESS, supply=10**12, tax_level=TAX_LEVEL, period=PERIOD):
self.tax_level = TAX_LEVEL self.tax_level = tax_level
self.period_seconds = PERIOD * 60 self.period_seconds = period * 60
self.settings = DemurrageTokenSettings() self.settings = DemurrageTokenSettings()
self.settings.name = token_name self.settings.name = token_name
self.settings.symbol = token_symbol self.settings.symbol = token_symbol
self.settings.decimals = 6 self.settings.decimals = 6
self.settings.demurrage_level = TAX_LEVEL * (10 ** 32) self.settings.demurrage_level = tax_level * (10 ** 32)
self.settings.period_minutes = PERIOD self.settings.period_minutes = period
self.settings.sink_address = sink_address self.settings.sink_address = sink_address
self.sink_address = self.settings.sink_address self.sink_address = self.settings.sink_address
logg.debug('using demurrage token settings: {}'.format(self.settings))
o = block_latest() o = block_latest()
self.start_block = rpc.do(o) self.start_block = rpc.do(o)
@ -101,7 +102,12 @@ class TestDemurrage(EthTesterCase):
# self.start_time = token_deploy.start_time # self.start_time = token_deploy.start_time
# self.default_supply = self.default_supply # self.default_supply = self.default_supply
# self.default_supply_cap = self.default_supply_cap # self.default_supply_cap = self.default_supply_cap
self.deployer = TestTokenDeploy(self.rpc) period = PERIOD
try:
period = getattr(self, 'period')
except AttributeError as e:
pass
self.deployer = TestTokenDeploy(self.rpc, period=period)
self.default_supply = self.deployer.default_supply self.default_supply = self.deployer.default_supply
self.default_supply_cap = self.deployer.default_supply_cap self.default_supply_cap = self.deployer.default_supply_cap
self.start_block = None self.start_block = None
@ -203,10 +209,11 @@ class TestDemurrageCap(TestDemurrage):
class TestDemurrageUnit(TestDemurrage): class TestDemurrageUnit(TestDemurrage):
def setUp(self): def setUp(self):
super(TestDemurrage, self).setUp() self.period = 1
self.period_seconds = self.period * 60
self.tax_level = TAX_LEVEL
self.tax_level = 50 super(TestDemurrageUnit, self).setUp()
self.period_seconds = 60
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
self.settings = DemurrageTokenSettings() self.settings = DemurrageTokenSettings()

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@ -1,3 +1,3 @@
chainlib-eth~=0.0.27 chainlib-eth>=0.1.0,<0.2.0
eth-erc20~=0.1.10 eth-erc20~=0.3.0
funga-eth~=0.5.6 funga-eth~=0.6.0

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@ -17,7 +17,12 @@ done
modes=(SingleCap) # other contracts need to be updted modes=(SingleCap) # other contracts need to be updted
for m in ${modes[@]}; do for m in ${modes[@]}; do
ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_period.py ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_period.py
# ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_redistribution_unit.py done
modes=(SingleNocap) # other contracts need to be updted
for m in ${modes[@]}; do
ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_redistribution_unit.py
ERC20_DEMURRAGE_TOKEN_TEST_MODE=$m python tests/test_redistribution_single.py
done done
modes=(MultiCap SingleCap) modes=(MultiCap SingleCap)

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@ -1,6 +1,6 @@
[metadata] [metadata]
name = erc20-demurrage-token name = erc20-demurrage-token
version = 0.0.11 version = 0.1.1
description = ERC20 token with redistributed continual demurrage description = ERC20 token with redistributed continual demurrage
author = Louis Holbrook author = Louis Holbrook
author_email = dev@holbrook.no author_email = dev@holbrook.no
@ -25,12 +25,13 @@ licence_files =
[options] [options]
include_package_data = True include_package_data = True
python_requires = >= 3.6 python_requires = >= 3.7
packages = packages =
erc20_demurrage_token erc20_demurrage_token
erc20_demurrage_token.runnable erc20_demurrage_token.runnable
erc20_demurrage_token.data erc20_demurrage_token.data
erc20_demurrage_token.sim erc20_demurrage_token.sim
erc20_demurrage_token.unittest
[options.package_data] [options.package_data]
* = * =

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@ -31,6 +31,8 @@ testdir = os.path.dirname(__file__)
class TestRedistribution(TestDemurrageDefault): class TestRedistribution(TestDemurrageDefault):
def test_whole_is_parts(self): def test_whole_is_parts(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)

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@ -0,0 +1,185 @@
# standard imports
import os
import unittest
import json
import logging
# external imports
from chainlib.eth.constant import ZERO_ADDRESS
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.tx import receipt
from chainlib.eth.block import (
block_latest,
block_by_number,
)
from chainlib.eth.address import to_checksum_address
from hexathon import (
strip_0x,
add_0x,
)
# local imports
from erc20_demurrage_token import DemurrageToken
# test imports
from erc20_demurrage_token.unittest.base import TestDemurrageDefault
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
testdir = os.path.dirname(__file__)
class TestRedistribution(TestDemurrageDefault):
def test_redistribution_periods(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
demurrage = (1 - (self.tax_level / 1000000)) * (10**28)
supply = self.default_supply
(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[0], supply)
self.rpc.do(o)
for i in range(1, 10):
logg.debug('execute time travel to period {}'.format(i))
self.backend.time_travel(self.start_time + (self.period_seconds * i))
(tx_hash, o) = c.change_period(self.address, self.accounts[0])
self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
o = c.redistributions(self.address, i, sender_address=self.accounts[0])
redistribution = self.rpc.do(o)
o = c.to_redistribution_demurrage_modifier(self.address, redistribution, sender_address=self.accounts[0])
r = self.rpc.do(o)
demurrage = c.parse_to_redistribution_item(r)
o = c.redistributions(self.address, i-1, sender_address=self.accounts[0])
redistribution = self.rpc.do(o)
o = c.to_redistribution_demurrage_modifier(self.address, redistribution, sender_address=self.accounts[0])
r = self.rpc.do(o)
demurrage_previous = c.parse_to_redistribution_item(r)
o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
r = self.rpc.do(o)
balance_sink = c.parse_balance(r)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance_minter = c.parse_balance(r)
logg.debug('testing sink {} mint {} adds up to supply {} with demurrage between {} and {}'.format(balance_sink, balance_minter, supply, demurrage_previous, demurrage))
self.assert_within_lower(balance_minter + balance_sink, supply, 0.001)
def test_redistribution_catchup_periods(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
demurrage = (1 - (self.tax_level / 1000000)) * (10**28)
supply = self.default_supply
(tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[0], supply)
self.rpc.do(o)
self.backend.time_travel(self.start_time + (self.period_seconds * 10))
for i in range(1, 11):
logg.debug('checking period {}'.format(i))
(tx_hash, o) = c.change_period(self.address, self.accounts[0])
self.rpc.do(o)
o = receipt(tx_hash)
r = self.rpc.do(o)
self.assertEqual(r['status'], 1)
i = 10
o = c.redistributions(self.address, i, sender_address=self.accounts[0])
redistribution = self.rpc.do(o)
o = c.to_redistribution_demurrage_modifier(self.address, redistribution, sender_address=self.accounts[0])
r = self.rpc.do(o)
demurrage = c.parse_to_redistribution_item(r)
o = c.redistributions(self.address, i-1, sender_address=self.accounts[0])
redistribution = self.rpc.do(o)
o = c.to_redistribution_demurrage_modifier(self.address, redistribution, sender_address=self.accounts[0])
r = self.rpc.do(o)
demurrage_previous = c.parse_to_redistribution_item(r)
o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
r = self.rpc.do(o)
balance_sink = c.parse_balance(r)
o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0])
r = self.rpc.do(o)
balance_minter = c.parse_balance(r)
logg.debug('testing sink {} mint {} adds up to supply {} with demurrage between {} and {}'.format(balance_sink, balance_minter, supply, demurrage_previous, demurrage))
self.assert_within_lower(balance_minter + balance_sink, supply, 0.001)
# def test_redistribution_boundaries(self):
# nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
# c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
#
# demurrage = (1 - (self.tax_level / 1000000)) * (10**28)
# supply = self.default_supply
#
# (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[0], supply)
# self.rpc.do(o)
#
# o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
# r = self.rpc.do(o)
# balance = c.parse_balance(r)
# logg.debug('balance before {} supply {}'.format(balance, supply))
#
# self.backend.time_travel(self.start_time + self.period_seconds)
# (tx_hash, o) = c.change_period(self.address, self.accounts[0])
# r = self.rpc.do(o)
#
# o = receipt(tx_hash)
# r = self.rpc.do(o)
# self.assertEqual(r['status'], 1)
#
# o = c.redistributions(self.address, 1, sender_address=self.accounts[0])
# r = self.rpc.do(o)
# oo = c.to_redistribution_supply(self.address, r, sender_address=self.accounts[0])
# rr = self.rpc.do(oo)
# oo = c.to_redistribution_demurrage_modifier(self.address, r, sender_address=self.accounts[0])
# rr = self.rpc.do(oo)
#
# o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
# r = self.rpc.do(o)
# balance = c.parse_balance(r)
#
# self.backend.time_travel(self.start_time + self.period_seconds * 2 + 1)
# (tx_hash, o) = c.change_period(self.address, self.accounts[0])
# r = self.rpc.do(o)
#
# o = receipt(tx_hash)
# r = self.rpc.do(o)
# self.assertEqual(r['status'], 1)
#
# o = c.redistributions(self.address, 2, sender_address=self.accounts[0])
# r = self.rpc.do(o)
# oo = c.to_redistribution_supply(self.address, r, sender_address=self.accounts[0])
# rr = self.rpc.do(oo)
# oo = c.to_redistribution_demurrage_modifier(self.address, r, sender_address=self.accounts[0])
# rr = self.rpc.do(oo)
#
# o = c.balance_of(self.address, self.sink_address, sender_address=self.accounts[0])
# r = self.rpc.do(o)
# balance = c.parse_balance(r)
if __name__ == '__main__':
unittest.main()

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@ -31,12 +31,12 @@ testdir = os.path.dirname(__file__)
class TestRedistribution(TestDemurrageUnit): class TestRedistribution(TestDemurrageUnit):
# TODO: move to "pure" test file when getdistribution is implemented in all contracts # TODO: move to "pure" test file when getdistribution is implemented in all contracts
def test_distribution(self): def test_distribution_direct(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
#demurrage = (1 - (self.tax_level / 1000000)) * (10**38)
demurrage = (1 - (self.tax_level / 1000000)) * (10**28) demurrage = (1 - (self.tax_level / 1000000)) * (10**28)
supply = self.default_supply supply = self.default_supply
@ -51,21 +51,23 @@ class TestRedistribution(TestDemurrageUnit):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
#demurrage = (1 - (self.tax_level / 1000000)) * (10**38) demurrage = (1 - (self.tax_level / 100000)) * (10**28)
demurrage = (1 - (self.tax_level / 1000000)) * (10**28)
logg.debug('demurrage {}'.format(demurrage))
supply = self.default_supply supply = self.default_supply
o = c.to_redistribution(self.address, 0, demurrage, supply, 1, sender_address=self.accounts[0]) o = c.to_redistribution(self.address, 0, demurrage, supply, 2, sender_address=self.accounts[0])
redistribution = self.rpc.do(o) redistribution = self.rpc.do(o)
o = c.get_distribution_from_redistribution(self.address, redistribution, self.accounts[0]) o = c.get_distribution_from_redistribution(self.address, redistribution, self.accounts[0])
r = self.rpc.do(o) r = self.rpc.do(o)
distribution = c.parse_get_distribution(r) distribution = c.parse_get_distribution(r)
expected_distribution = self.default_supply * (self.tax_level / 1000000) expected_distribution = (self.default_supply * self.tax_level) / 100000
logg.debug('distribution {} supply {}'.format(distribution, self.default_supply))
self.assert_within_lower(distribution, expected_distribution, 1000) self.assert_within_lower(distribution, expected_distribution, 1000)
def test_single_step(self): def test_single_step_basic(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc) nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) c = DemurrageToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
@ -81,6 +83,12 @@ class TestRedistribution(TestDemurrageUnit):
expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount)) expected_balance = int(mint_amount - ((self.tax_level / 1000000) * mint_amount))
o = c.balance_of(self.address, ZERO_ADDRESS, sender_address=self.accounts[0])
r = self.rpc.do(o)
balance = c.parse_balance(r)
logg.debug('balance {}'.format(balance))
o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0]) o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0])
r = self.rpc.do(o) r = self.rpc.do(o)
balance = c.parse_balance(r) balance = c.parse_balance(r)
@ -175,9 +183,6 @@ class TestRedistribution(TestDemurrageUnit):
o = c.to_redistribution_demurrage_modifier(self.address, redistribution, sender_address=self.accounts[0]) o = c.to_redistribution_demurrage_modifier(self.address, redistribution, sender_address=self.accounts[0])
r = self.rpc.do(o) r = self.rpc.do(o)
demurrage = c.parse_to_redistribution_item(r) demurrage = c.parse_to_redistribution_item(r)
# o = c.demurrage_amount(self.address, sender_address=self.accounts[0])
# r = self.rpc.do(o)
# demurrage = c.parse_demurrage_amount(r)
logg.debug('\nrediistribution {}\ndemurrage {}\nsupply {}'.format(redistribution, demurrage, supply)) logg.debug('\nrediistribution {}\ndemurrage {}\nsupply {}'.format(redistribution, demurrage, supply))
expected_balance = int(supply * (self.tax_level / 1000000)) expected_balance = int(supply * (self.tax_level / 1000000))

View File

@ -20,8 +20,6 @@ contract DemurrageTokenSingleCap {
// Cached demurrage amount, ppm with 38 digit resolution // Cached demurrage amount, ppm with 38 digit resolution
uint128 public demurrageAmount; uint128 public demurrageAmount;
// Cached demurrage period; the period for which demurrageAmount was calculated
//uint128 public demurragePeriod;
// Cached demurrage timestamp; the timestamp for which demurrageAmount was last calculated // Cached demurrage timestamp; the timestamp for which demurrageAmount was last calculated
uint256 public demurrageTimestamp; uint256 public demurrageTimestamp;
@ -42,8 +40,11 @@ contract DemurrageTokenSingleCap {
// Implements ERC20 // Implements ERC20
uint256 public totalSupply; uint256 public totalSupply;
// Minimum amount of (demurraged) tokens an account must spend to participate in redistribution for a particular period // Last executed period
uint256 public minimumParticipantSpend; uint256 public lastPeriod;
// Last sink redistribution amount
uint256 public totalSink;
// 128 bit resolution of the demurrage divisor // 128 bit resolution of the demurrage divisor
// (this constant x 1000000 is contained within 128 bits) // (this constant x 1000000 is contained within 128 bits)
@ -71,7 +72,7 @@ contract DemurrageTokenSingleCap {
mapping (address => mapping (address => uint256 ) ) allowance; // holder -> spender -> amount (amount is subject to demurrage) mapping (address => mapping (address => uint256 ) ) allowance; // holder -> spender -> amount (amount is subject to demurrage)
// Address to send unallocated redistribution tokens // Address to send unallocated redistribution tokens
address sinkAddress; address public sinkAddress;
// Implements ERC20 // Implements ERC20
event Transfer(address indexed _from, address indexed _to, uint256 _value); event Transfer(address indexed _from, address indexed _to, uint256 _value);
@ -111,17 +112,13 @@ contract DemurrageTokenSingleCap {
demurrageTimestamp = block.timestamp; demurrageTimestamp = block.timestamp;
periodStart = demurrageTimestamp; periodStart = demurrageTimestamp;
periodDuration = _periodMinutes * 60; periodDuration = _periodMinutes * 60;
//demurrageAmount = 100000000000000000000000000000000000000 - _taxLevelMinute; // Represents 38 decimal places, same as resolutionFactor demurrageAmount = uint128(nanoDivider) * 100;
//demurrageAmount = 100000000000000000000000000000000000000;
demurrageAmount = 10000000000000000000000000000;
//demurragePeriod = 1;
taxLevel = _taxLevelMinute; // Represents 38 decimal places taxLevel = _taxLevelMinute; // Represents 38 decimal places
bytes32 initialRedistribution = toRedistribution(0, demurrageAmount, 0, 1); bytes32 initialRedistribution = toRedistribution(0, demurrageAmount, 0, 1);
redistributions.push(initialRedistribution); redistributions.push(initialRedistribution);
// Misc settings // Misc settings
sinkAddress = _defaultSinkAddress; sinkAddress = _defaultSinkAddress;
minimumParticipantSpend = 10 ** uint256(_decimals);
} }
@ -153,10 +150,8 @@ contract DemurrageTokenSingleCap {
baseBalance = baseBalanceOf(_account); baseBalance = baseBalanceOf(_account);
//periodCount = actualPeriod() - demurragePeriod;
periodCount = getMinutesDelta(demurrageTimestamp); periodCount = getMinutesDelta(demurrageTimestamp);
//currentDemurragedAmount = uint128(decayBy(demurrageAmount, periodCount));
currentDemurragedAmount = uint128(decayBy(demurrageAmount * 10000000000, periodCount)); currentDemurragedAmount = uint128(decayBy(demurrageAmount * 10000000000, periodCount));
return (baseBalance * currentDemurragedAmount) / (nanoDivider * 1000000000000); return (baseBalance * currentDemurragedAmount) / (nanoDivider * 1000000000000);
@ -254,7 +249,6 @@ contract DemurrageTokenSingleCap {
uint256 currentRedistribution; uint256 currentRedistribution;
uint256 grownSupply; uint256 grownSupply;
//grownSupply = growBy(totalSupply, 1);
grownSupply = totalSupply; grownSupply = totalSupply;
currentRedistribution = uint256(redistributions[redistributions.length-1]); currentRedistribution = uint256(redistributions[redistributions.length-1]);
currentRedistribution &= (~maskRedistributionValue); currentRedistribution &= (~maskRedistributionValue);
@ -274,7 +268,7 @@ contract DemurrageTokenSingleCap {
bytes32 lastRedistribution; bytes32 lastRedistribution;
uint256 currentPeriod; uint256 currentPeriod;
lastRedistribution = redistributions[redistributions.length-1]; lastRedistribution = redistributions[lastPeriod];
currentPeriod = this.actualPeriod(); currentPeriod = this.actualPeriod();
if (currentPeriod <= toRedistributionPeriod(lastRedistribution)) { if (currentPeriod <= toRedistributionPeriod(lastRedistribution)) {
return bytes32(0x00); return bytes32(0x00);
@ -285,8 +279,7 @@ contract DemurrageTokenSingleCap {
function getDistribution(uint256 _supply, uint256 _demurrageAmount) public view returns (uint256) { function getDistribution(uint256 _supply, uint256 _demurrageAmount) public view returns (uint256) {
uint256 difference; uint256 difference;
//difference = _supply * (resolutionFactor - _demurrageAmount); //(nanoDivider - ((resolutionFactor - _demurrageAmount) / nanoDivider)); difference = _supply * (resolutionFactor - (_demurrageAmount * 10000000000));
difference = _supply * (resolutionFactor - (_demurrageAmount * 10000000000)); //(nanoDivider - ((resolutionFactor - _demurrageAmount) / nanoDivider));
return difference / resolutionFactor; return difference / resolutionFactor;
} }
@ -302,9 +295,13 @@ contract DemurrageTokenSingleCap {
// Returns the amount sent to the sink address // Returns the amount sent to the sink address
function applyDefaultRedistribution(bytes32 _redistribution) private returns (uint256) { function applyDefaultRedistribution(bytes32 _redistribution) private returns (uint256) {
uint256 unit; uint256 unit;
uint256 baseUnit;
unit = getDistributionFromRedistribution(_redistribution); unit = getDistributionFromRedistribution(_redistribution);
increaseBaseBalance(sinkAddress, toBaseAmount(unit)); baseUnit = toBaseAmount(unit) - totalSink;
increaseBaseBalance(sinkAddress, baseUnit);
lastPeriod += 1;
totalSink += baseUnit;
return unit; return unit;
} }
@ -319,13 +316,9 @@ contract DemurrageTokenSingleCap {
} }
function applyDemurrageLimited(uint256 _rounds) public returns (bool) { function applyDemurrageLimited(uint256 _rounds) public returns (bool) {
//uint128 epochPeriodCount;
uint256 periodCount; uint256 periodCount;
uint256 lastDemurrageAmount; uint256 lastDemurrageAmount;
//epochPeriodCount = actualPeriod();
//periodCount = epochPeriodCount - demurragePeriod;
periodCount = getMinutesDelta(demurrageTimestamp); periodCount = getMinutesDelta(demurrageTimestamp);
if (periodCount == 0) { if (periodCount == 0) {
return false; return false;
@ -423,7 +416,6 @@ contract DemurrageTokenSingleCap {
// Inflates the given amount according to the current demurrage modifier // Inflates the given amount according to the current demurrage modifier
function toBaseAmount(uint256 _value) public view returns (uint256) { function toBaseAmount(uint256 _value) public view returns (uint256) {
//return (_value * resolutionFactor) / demurrageAmount;
return (_value * resolutionFactor) / (demurrageAmount * 10000000000); return (_value * resolutionFactor) / (demurrageAmount * 10000000000);
} }
@ -474,7 +466,6 @@ contract DemurrageTokenSingleCap {
decreaseBaseBalance(_from, _value); decreaseBaseBalance(_from, _value);
increaseBaseBalance(_to, _value); increaseBaseBalance(_to, _value);
//period = actualPeriod();
return true; return true;
} }