def __init__(self, expiry_time, get_touches=True):
self.expiry_time = expiry_time
self.get_touches = get_touches
self.expiry_deque = LinkedList()
self.d = dict() # key -> node, value
self_ref = weakref.ref(self, lambda _: expire_loop.stop() if expire_loop.running else None)
self._expire_loop = expire_loop = deferral.RobustLoopingCall(lambda: self_ref().expire() if isinstance(self_ref(),ExpiringDict) else None)
expire_loop.start(1)
def handle_verack(self):
self.get_block = deferral.ReplyMatcher(lambda hash: self.send_getdata(requests=[dict(type='block', hash=hash)]))
self.get_block_header = deferral.ReplyMatcher(lambda hash: self.send_getheaders(version=3, have=[], last=hash))
if hasattr(self.factory, 'resetDelay'):
self.factory.resetDelay()
if hasattr(self.factory, 'gotConnection'):
self.factory.gotConnection(self)
self.pinger = deferral.RobustLoopingCall(self.send_ping, nonce=1234)
self.pinger.start(30)
def __init__(self, best_block_func, factory, backlog_needed):
self._best_block_func = best_block_func
self._factory = factory
self._backlog_needed = backlog_needed
self._tracker = forest.Tracker()
self._watch1 = self._factory.new_headers.watch(self._heard_headers)
self._watch2 = self._factory.new_block.watch(self._request)
self._requested = set()
self._clear_task = deferral.RobustLoopingCall(self._requested.clear)
self._clear_task.start(60)
self._last_notified_size = 0
self.updated = variable.Event()
self._think_task = deferral.RobustLoopingCall(self._think)
self._think_task.start(15)
self._think2_task = deferral.RobustLoopingCall(self._think2)
self._think2_task.start(15)
def start(self):
stop_signal = variable.Event()
self.stop = stop_signal.happened
# DASHD WORK
self.dashd_work = variable.Variable(
(yield helper.getwork(self.dashd, self.net)))
@defer.inlineCallbacks
def work_poller():
while stop_signal.times == 0:
flag = self.factory.new_block.get_deferred()
try:
self.dashd_work.set((yield helper.getwork(
self.dashd, self.net,
self.dashd_work.value['use_getblocktemplate'])))
except:
log.err()
yield defer.DeferredList([flag, deferral.sleep(15)],
fireOnOneCallback=True)
work_poller()
# PEER WORK
self.best_block_header = variable.Variable(None)
def handle_header(new_header):
# check that header matches current target
if not (self.net.PARENT.POW_FUNC(
dash_data.block_header_type.pack(new_header)) <=
self.dashd_work.value['bits'].target):
return
dashd_best_block = self.dashd_work.value['previous_block']
if (self.best_block_header.value is None or
(new_header['previous_block'] == dashd_best_block
and self.net.PARENT.BLOCKHASH_FUNC(
dash_data.block_header_type.pack(
self.best_block_header.value)) == dashd_best_block
) # new is child of current and previous is current
or (self.net.PARENT.BLOCKHASH_FUNC(
dash_data.block_header_type.pack(new_header))
== dashd_best_block
and self.best_block_header.value['previous_block'] !=
dashd_best_block)
): # new is current and previous is not a child of current
self.best_block_header.set(new_header)
self.handle_header = handle_header
@defer.inlineCallbacks
def poll_header():
if self.factory.conn.value is None:
return
handle_header((yield self.factory.conn.value.get_block_header(
self.dashd_work.value['previous_block'])))
self.dashd_work.changed.watch(lambda _: poll_header())
yield deferral.retry('Error while requesting best block header:')(
poll_header)()
# BEST SHARE
self.known_txs_var = variable.VariableDict({}) # hash -> tx
self.mining_txs_var = variable.Variable({}) # hash -> tx
self.get_height_rel_highest = yield height_tracker.get_height_rel_highest_func(
self.dashd, self.factory,
lambda: self.dashd_work.value['previous_block'], self.net)
self.best_share_var = variable.Variable(None)
self.desired_var = variable.Variable(None)
self.dashd_work.changed.watch(lambda _: self.set_best_share())
self.set_best_share()
# setup p2p logic and join p2pool network
# update mining_txs according to getwork results
@self.dashd_work.changed.run_and_watch
def _(_=None):
new_mining_txs = {}
added_known_txs = {}
for tx_hash, tx in zip(self.dashd_work.value['transaction_hashes'],
self.dashd_work.value['transactions']):
new_mining_txs[tx_hash] = tx
added_known_txs[tx_hash] = tx
self.mining_txs_var.set(new_mining_txs)
self.known_txs_var.add(added_known_txs)
# add p2p transactions from dashd to known_txs
@self.factory.new_tx.watch
def _(tx):
self.known_txs_var.add({
dash_data.hash256(dash_data.tx_type.pack(tx)):
tx,
})
# forward transactions seen to dashd
@self.known_txs_var.transitioned.watch
@defer.inlineCallbacks
def _(before, after):
yield deferral.sleep(random.expovariate(1 / 1))
if self.factory.conn.value is None:
return
for tx_hash in set(after) - set(before):
self.factory.conn.value.send_tx(tx=after[tx_hash])
@self.tracker.verified.added.watch
def _(share):
if not (share.pow_hash <= share.header['bits'].target):
return
block = share.as_block(self.tracker, self.known_txs_var.value)
if block is None:
print >> sys.stderr, 'GOT INCOMPLETE BLOCK FROM PEER! %s dash: %s%064x' % (
p2pool_data.format_hash(
share.hash), self.net.PARENT.BLOCK_EXPLORER_URL_PREFIX,
share.header_hash)
return
helper.submit_block(block, True, self.factory, self.dashd,
self.dashd_work, self.net)
print
print 'GOT BLOCK FROM PEER! Passing to dashd! %s dash: %s%064x' % (
p2pool_data.format_hash(share.hash),
self.net.PARENT.BLOCK_EXPLORER_URL_PREFIX, share.header_hash)
print
self.factory.new_block.happened(share.hash)
def forget_old_txs():
new_known_txs = {}
if self.p2p_node is not None:
for peer in self.p2p_node.peers.itervalues():
new_known_txs.update(peer.remembered_txs)
new_known_txs.update(self.mining_txs_var.value)
for share in self.tracker.get_chain(
self.best_share_var.value,
min(120,
self.tracker.get_height(self.best_share_var.value))):
for tx_hash in share.new_transaction_hashes:
if tx_hash in self.known_txs_var.value:
new_known_txs[tx_hash] = self.known_txs_var.value[
tx_hash]
self.known_txs_var.set(new_known_txs)
t = deferral.RobustLoopingCall(forget_old_txs)
t.start(10)
stop_signal.watch(t.stop)
t = deferral.RobustLoopingCall(self.clean_tracker)
t.start(5)
stop_signal.watch(t.stop)
def start(self):
stop_signal = variable.Event()
self.stop = stop_signal.happened
# BITCOIND WORK
self.bitcoind_work = variable.Variable((yield
helper.getwork(self.bitcoind)))
@defer.inlineCallbacks
def work_poller():
while stop_signal.times == 0:
flag = self.factory.new_block.get_deferred()
try:
self.bitcoind_work.set((yield helper.getwork(
self.bitcoind,
self.bitcoind_work.value['use_getblocktemplate'])))
except:
log.err()
yield defer.DeferredList([flag, deferral.sleep(15)],
fireOnOneCallback=True)
work_poller()
# PEER WORK
self.best_block_header = variable.Variable(None)
def handle_header(new_header):
# check that header matches current target
if not (self.net.PARENT.POW_FUNC(
bitcoin_data.block_header_type.pack(new_header)) <=
self.bitcoind_work.value['bits'].target):
return
bitcoind_best_block = self.bitcoind_work.value['previous_block']
if (self.best_block_header.value is None or
(new_header['previous_block'] == bitcoind_best_block
and bitcoin_data.hash256(
bitcoin_data.block_header_type.pack(
self.best_block_header.value)) == bitcoind_best_block
) # new is child of current and previous is current
or (bitcoin_data.hash256(
bitcoin_data.block_header_type.pack(new_header))
== bitcoind_best_block
and self.best_block_header.value['previous_block'] !=
bitcoind_best_block)
): # new is current and previous is not a child of current
self.best_block_header.set(new_header)
self.handle_header = handle_header
@defer.inlineCallbacks
def poll_header():
if self.factory.conn.value is None:
return
handle_header((yield self.factory.conn.value.get_block_header(
self.bitcoind_work.value['previous_block'])))
self.bitcoind_work.changed.watch(lambda _: poll_header())
yield deferral.retry('Error while requesting best block header:')(
poll_header)()
# BEST SHARE
self.known_txs_var = variable.Variable({}) # hash -> tx
self.mining_txs_var = variable.Variable({}) # hash -> tx
self.get_height_rel_highest = yield height_tracker.get_height_rel_highest_func(
self.bitcoind, self.factory,
lambda: self.bitcoind_work.value['previous_block'], self.net)
self.best_share_var = variable.Variable(None)
self.desired_var = variable.Variable(None)
self.bitcoind_work.changed.watch(lambda _: self.set_best_share())
self.set_best_share()
# setup p2p logic and join p2pool network
# update mining_txs according to getwork results
@self.bitcoind_work.changed.run_and_watch
def _(_=None):
new_mining_txs = {}
new_known_txs = dict(self.known_txs_var.value)
for tx_hash, tx in zip(
self.bitcoind_work.value['transaction_hashes'],
self.bitcoind_work.value['transactions']):
new_mining_txs[tx_hash] = tx
new_known_txs[tx_hash] = tx
self.mining_txs_var.set(new_mining_txs)
self.known_txs_var.set(new_known_txs)
# add p2p transactions from bitcoind to known_txs
@self.factory.new_tx.watch
def _(tx):
new_known_txs = dict(self.known_txs_var.value)
new_known_txs[bitcoin_data.hash256(
bitcoin_data.tx_type.pack(tx))] = tx
self.known_txs_var.set(new_known_txs)
# forward transactions seen to bitcoind
@self.known_txs_var.transitioned.watch
@defer.inlineCallbacks
def _(before, after):
yield deferral.sleep(random.expovariate(1 / 1))
if self.factory.conn.value is None:
return
for tx_hash in set(after) - set(before):
self.factory.conn.value.send_tx(tx=after[tx_hash])
@self.tracker.verified.added.watch
def _(share):
if not (share.pow_hash <= share.header['bits'].target):
return
block = share.as_block(self.tracker, self.known_txs_var.value)
if block is None:
print >> sys.stderr, 'GOT INCOMPLETE BLOCK FROM PEER! %s bitcoin: %s%064x' % (
p2pool_data.format_hash(
share.hash), self.net.PARENT.BLOCK_EXPLORER_URL_PREFIX,
share.header_hash)
return
helper.submit_block(block, True, self.factory, self.bitcoind,
self.bitcoind_work, self.net)
print
print 'GOT BLOCK FROM PEER! Passing to bitcoind! %s bitcoin: %s%064x' % (
p2pool_data.format_hash(share.hash),
self.net.PARENT.BLOCK_EXPLORER_URL_PREFIX, share.header_hash)
print
# Code to send pushover and notification when a block is found by a peer (ikolubr - Mar 31st, 2018)
if self.net.USE_PUSHOVER_BLOCK:
conn = httplib.HTTPSConnection("api.pushover.net:443")
conn.request(
"POST", "/1/messages.json",
urllib.urlencode({
"token":
self.net.PUSHOVER_APP_TOKEN,
"user":
self.net.PUSHOVER_USER_KEY,
"message":
'FOUND BLOCK! %s%064x' %
(self.net.PARENT.BLOCK_EXPLORER_URL_PREFIX,
share.header_hash),
}), {"Content-type": "application/x-www-form-urlencoded"})
conn.getresponse()
def forget_old_txs():
new_known_txs = {}
if self.p2p_node is not None:
for peer in self.p2p_node.peers.itervalues():
new_known_txs.update(peer.remembered_txs)
new_known_txs.update(self.mining_txs_var.value)
for share in self.tracker.get_chain(
self.best_share_var.value,
min(120,
self.tracker.get_height(self.best_share_var.value))):
for tx_hash in share.new_transaction_hashes:
if tx_hash in self.known_txs_var.value:
new_known_txs[tx_hash] = self.known_txs_var.value[
tx_hash]
self.known_txs_var.set(new_known_txs)
t = deferral.RobustLoopingCall(forget_old_txs)
t.start(10)
stop_signal.watch(t.stop)
t = deferral.RobustLoopingCall(self.clean_tracker)
t.start(5)
stop_signal.watch(t.stop)
