from twisted.internet import defer, task
from twisted.python import log
-from p2pool.bitcoin import data as bitcoin_data, getwork
+from p2pool.bitcoin import data as bitcoin_data
from p2pool.util import deferral, forest, variable
class HeaderWrapper(object):
- target = 2**256 - 1
__slots__ = 'hash previous_hash'.split(' ')
@classmethod
class HeightTracker(object):
'''Point this at a factory and let it take care of getting block heights'''
- def __init__(self, rpc_proxy, factory, backlog_needed):
- self._rpc_proxy = rpc_proxy
+ 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._think_task.start(15)
self._think2_task = task.LoopingCall(self._think2)
self._think2_task.start(15)
- self.best_hash = None
def _think(self):
try:
except:
log.err(None, 'Error in HeightTracker._think:')
- @defer.inlineCallbacks
def _think2(self):
- try:
- ba = getwork.BlockAttempt.from_getwork((yield self._rpc_proxy.rpc_getwork()))
- self._request(ba.previous_block)
- self.best_hash = ba.previous_block
- except:
- log.err(None, 'Error in HeightTracker._think2:')
+ self._request(self._best_block_func())
def _heard_headers(self, headers):
changed = False
def get_height_rel_highest(self, block_hash):
# callers: highest height can change during yields!
- best_height, best_last = self._tracker.get_height_and_last(self.best_hash)
+ best_height, best_last = self._tracker.get_height_and_last(self._best_block_func())
height, last = self._tracker.get_height_and_last(block_hash)
if last != best_last:
return -1000000000 # XXX hack
return height - best_height
@defer.inlineCallbacks
-def get_height_rel_highest_func(bitcoind, factory, current_work, net):
+def get_height_rel_highest_func(bitcoind, factory, best_block_func, net):
if '\ngetblock ' in (yield deferral.retry()(bitcoind.rpc_help)()):
@deferral.DeferredCacher
@defer.inlineCallbacks
raise deferral.RetrySilentlyException()
raise
defer.returnValue(x['blockcount'] if 'blockcount' in x else x['height'])
- best_height_cached = variable.Variable((yield deferral.retry()(height_cacher)(current_work.value['previous_block'])))
+ best_height_cached = variable.Variable((yield deferral.retry()(height_cacher)(best_block_func())))
def get_height_rel_highest(block_hash):
this_height = height_cacher.call_now(block_hash, 0)
- best_height = height_cacher.call_now(current_work.value['previous_block'], 0)
+ best_height = height_cacher.call_now(best_block_func(), 0)
best_height_cached.set(max(best_height_cached.value, this_height, best_height))
return this_height - best_height_cached.value
else:
- get_height_rel_highest = HeightTracker(bitcoind, factory, 5*net.SHARE_PERIOD*net.CHAIN_LENGTH/net.PARENT.BLOCK_PERIOD).get_height_rel_highest
+ get_height_rel_highest = HeightTracker(best_block_func, factory, 5*net.SHARE_PERIOD*net.CHAIN_LENGTH/net.PARENT.BLOCK_PERIOD).get_height_rel_highest
defer.returnValue(get_height_rel_highest)