def __init__(self, miner):
self.lock = RLock()
self.result_queue = Queue()
self.miner = miner
self.config = miner.options
self.update = True
self.last_work = 0
self.backup_server_index = 1
self.errors = 0
self.failback_getwork_count = 0
self.failback_attempt_count = 0
self.server = None
self.user_agent = 'poclbm/' + miner.version
self.difficulty = 0
self.true_target = None
self.last_block = ''
self.sent = {}
self.pools = pools.PoolManager()
self.best_pools = self.pools.get_best_pools()
self.servers = pools.get_servers(self.best_pools)
if not self.servers:
self.failure('At least one server is required')
else:
say_line('Switching to {0} with utility {1:.3f}'.format(self.best_pools[0].name, self.best_pools[0].utility), show_server=False)
say_line("Current utilities:", show_server=False)
for pool in self.best_pools:
say_line(' {0:15}: {1:.3f}'.format(pool.name, pool.utility), show_server=False)
self.set_server(self.servers[0])
self.user_servers = list(self.servers)
def getwork(self, data=None):
if not data:
previous_best_pool = self.best_pools[0]
self.best_pools = self.pools.get_best_pools()
self.servers = pools.get_servers(self.best_pools)
if previous_best_pool != self.best_pools[0]:
say_line("Switching to {0} with utility {1:.3f}".format(self.best_pools[0].name, self.best_pools[0].utility), show_server=False)
say_line("Current utilities:", show_server=False)
for pool in self.best_pools:
say_line(' {0:15}: {1:.3f}'.format(pool.name, pool.utility), show_server=False)
self.set_server(self.servers[0])
self.connection = None
save_server = None
try:
if self.server != self.servers[0] and self.config.failback > 0:
if self.failback_getwork_count >= self.config.failback:
save_server = self.server
say_line("Attempting to fail back to primary server")
self.set_server(self.servers[0])
self.failback_getwork_count += 1
if not self.connection:
self.connection = self.connect(self.proto, self.host, self.timeout)
self.postdata['params'] = if_else(data, [data], [])
(self.connection, result) = self.request(self.connection, '/', self.headers, dumps(self.postdata))
self.errors = 0
if self.server == self.servers[0]:
self.backup_server_index = 1
self.failback_getwork_count = 0
self.failback_attempt_count = 0
return result['result']
except NotAuthorized:
self.failure('Wrong username or password')
except RPCError as e:
say('%s', e)
except (IOError, httplib.HTTPException, ValueError):
if save_server:
self.failback_attempt_count += 1
self.set_server(save_server)
say_line('Still unable to reconnect to primary server (attempt %s), failing over', self.failback_attempt_count)
self.failback_getwork_count = 0
return
say('Problems communicating with bitcoin RPC %s %s', (self.errors, self.config.tolerance))
self.errors += 1
if self.errors > self.config.tolerance + 1:
self.errors = 0
if self.backup_server_index >= len(self.servers):
say_line("No more backup pools left. Using primary and starting over.")
pool = self.servers[0]
self.backup_server_index = 1
else:
pool = self.servers[self.backup_server_index]
self.backup_server_index += 1
self.set_server(pool)
