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GenesisMiner.py
executable file
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GenesisMiner.py
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from copy import copy
import hashlib
from binascii import hexlify, unhexlify
from log import say_exception, say_line, say_quiet
from sha256 import hash, sha256, STATE
from struct import pack, unpack
from threading import RLock
from time import time, sleep
from util import Object, chunks, bytereverse, belowOrEquals, uint32
from GenesisSource import GenesisSource
import OpenCLMiner
import log
import socks
class GenesisMiner(object):
def __init__(self, options):
self.lock = RLock()
self.miners = []
self.options = options
self.last_work = 0
self.update_time = False
self.max_update_time = 3600
self.source = GenesisSource(self)
self.backup_server_index = 1
self.errors = 0
self.failback_attempt_count = 0
self.server_index = -1
self.last_server = None
self.server_map = {}
self.user_agent = 'poclbm/' + options.version
self.difficulty = 0
self.true_target = None
self.last_block = ''
self.sent = {}
def add_miner(self, miner):
self.miners.append(miner)
miner.switch = self
def updatable_miner(self):
for miner in self.miners:
if miner.update:
miner.update = False
return miner
def loop(self):
self.should_stop = False
while True:
if self.should_stop: return
failback = self.source.loop()
sleep(1)
#callers must provide hex encoded block header and target
def decode(self, server, block_header, target, job_id = None, extranonce2 = None):
if block_header:
job = Object()
binary_data = block_header.decode('hex')
data0 = list(unpack('<16I', binary_data[:64])) + ([0] * 48)
job.target = unpack('<8I', target.decode('hex'))
job.header = binary_data[:68]
job.merkle_end = uint32(unpack('<I', binary_data[64:68])[0])
job.time = uint32(unpack('<I', binary_data[68:72])[0])
job.difficulty = uint32(unpack('<I', binary_data[72:76])[0])
job.state = sha256(STATE, data0)
job.targetQ = 2**256 / int(''.join(list(chunks(target, 2))[::-1]), 16)
job.job_id = job_id
job.extranonce2 = extranonce2
job.server = server
if job.difficulty != self.difficulty:
self.set_difficulty(job.difficulty)
return job
def set_difficulty(self, difficulty):
self.difficulty = difficulty
bits = '%08x' % bytereverse(difficulty)
true_target = '%064x' % (int(bits[2:], 16) * 2 ** (8 * (int(bits[:2], 16) - 3)),)
true_target = ''.join(list(chunks(true_target, 2))[::-1])
self.true_target = unpack('<8I', true_target.decode('hex'))
def send(self, result, send_callback):
for nonce in result.miner.nonce_generator(result.nonces):
h = hash(result.state, result.merkle_end, result.time, result.difficulty, nonce)
if h[7] != 0:
hash6 = pack('<I', long(h[6])).encode('hex')
say_line('Verification failed, check hardware! (%s, %s)', (result.miner.id(), hash6))
return True # consume this particular result
else:
self.diff1_found(bytereverse(h[6]), result.target[6])
if belowOrEquals(h[:7], result.target[:7]):
is_block = belowOrEquals(h[:7], self.true_target[:7])
hash6 = pack('<I', long(h[6])).encode('hex')
hash5 = pack('<I', long(h[5])).encode('hex')
self.sent[nonce] = (is_block, hash6, hash5)
ntime = long(pack('<I', long(result.time)).encode('hex'),16)
resnonce = long(pack('<I', long(nonce)).encode('hex'),16)
block = self.source.create_block_header(self.source.merkle_root, ntime, self.source.bits, resnonce)
hash_header = hashlib.sha256(hashlib.sha256(block).digest()).digest()[::-1]
shouldSend = int(hash_header.encode('hex_codec'), 16) < self.source.server_difficulty
print "t->" + str(ntime) + " nonce->" + str(resnonce) + " shouldSend->" + str(shouldSend)
if shouldSend:
if not send_callback(result, nonce):
return False
return True
def diff1_found(self, hash_, target):
if self.options.verbose and target < 0xFFFF0000L:
say_line('checking %s <= %s', (hash_, target))
def status_updated(self, miner):
verbose = self.options.verbose
rate = miner.rate if verbose else sum([m.rate for m in self.miners])
estimated_rate = miner.estimated_rate if verbose else sum([m.estimated_rate for m in self.miners])
rejected_shares = miner.share_count[0] if verbose else sum([m.share_count[0] for m in self.miners])
total_shares = rejected_shares + miner.share_count[1] if verbose else sum([m.share_count[1] for m in self.miners])
total_shares_estimator = max(total_shares, 1)
say_quiet('%s[%.03f MH/s (~%d MH/s)] [Rej: %d/%d (%.02f%%)]', (str(miner.nonces_left), rate, round(estimated_rate), rejected_shares, total_shares, float(rejected_shares) * 100 / total_shares_estimator))
def report(self, miner, nonce, accepted):
is_block, hash6, hash5 = self.sent[nonce]
miner.share_count[1 if accepted else 0] += 1
hash_ = hash6 + hash5 if is_block else hash6
if self.options.verbose or is_block:
say_line('%s %s%s, %s', (miner.id(), 'block ' if is_block else '', hash_, 'accepted' if accepted else '_rejected_'))
del self.sent[nonce]
def queue_work(self, server, block_header, target = None, job_id = None, extranonce2 = None, miner=None):
work = self.decode(server, block_header, target, job_id, extranonce2)
with self.lock:
if not miner:
miner = self.miners[0]
for i in xrange(1, len(self.miners)):
self.miners[i].update = True
miner.work_queue.put(work)
if work:
miner.update = False; self.last_work = time()
if self.last_block != work.header[25:29]:
self.last_block = work.header[25:29]
self.clear_result_queue(server)
def clear_result_queue(self, server):
while not server.result_queue.empty():
server.result_queue.get(False)
def stop(self):
self.should_stop = True
self.source.stop()
def put(self, result):
result.server.result_queue.put(result)