1 from __future__ import division
8 from twisted.python import log
11 from p2pool.bitcoin import data as bitcoin_data, script, sha256
12 from p2pool.util import math, forest, pack
16 hash_link_type = pack.ComposedType([
17 ('state', pack.FixedStrType(32)),
18 ('extra_data', pack.FixedStrType(0)), # bit of a hack, but since the donation script is at the end, const_ending is long enough to always make this empty
19 ('length', pack.VarIntType()),
22 def prefix_to_hash_link(prefix, const_ending=''):
23 assert prefix.endswith(const_ending), (prefix, const_ending)
24 x = sha256.sha256(prefix)
25 return dict(state=x.state, extra_data=x.buf[:max(0, len(x.buf)-len(const_ending))], length=x.length//8)
27 def check_hash_link(hash_link, data, const_ending=''):
28 extra_length = hash_link['length'] % (512//8)
29 assert len(hash_link['extra_data']) == max(0, extra_length - len(const_ending))
30 extra = (hash_link['extra_data'] + const_ending)[len(hash_link['extra_data']) + len(const_ending) - extra_length:]
31 assert len(extra) == extra_length
32 return pack.IntType(256).unpack(hashlib.sha256(sha256.sha256(data, (hash_link['state'], extra, 8*hash_link['length'])).digest()).digest())
40 share_type = pack.ComposedType([
41 ('type', pack.VarIntType()),
42 ('contents', pack.VarStrType()),
45 def load_share(share, net, peer):
46 if share['type'] in [0, 1, 2, 3]:
47 from p2pool import p2p
48 raise p2p.PeerMisbehavingError('sent an obsolete share')
49 elif share['type'] == 4:
50 return Share(net, peer, other_txs=None, **Share.share1a_type.unpack(share['contents']))
51 elif share['type'] == 5:
52 share1b = Share.share1b_type.unpack(share['contents'])
53 return Share(net, peer, merkle_link=bitcoin_data.calculate_merkle_link([0] + [bitcoin_data.hash256(bitcoin_data.tx_type.pack(x)) for x in share1b['other_txs']], 0), **share1b)
55 raise ValueError('unknown share type: %r' % (share['type'],))
57 DONATION_SCRIPT = '4104ffd03de44a6e11b9917f3a29f9443283d9871c9d743ef30d5eddcd37094b64d1b3d8090496b53256786bf5c82932ec23c3b74d9f05a6f95a8b5529352656664bac'.decode('hex')
60 small_block_header_type = pack.ComposedType([
61 ('version', pack.VarIntType()), # XXX must be constrained to 32 bits
62 ('previous_block', pack.PossiblyNoneType(0, pack.IntType(256))),
63 ('timestamp', pack.IntType(32)),
64 ('bits', bitcoin_data.FloatingIntegerType()),
65 ('nonce', pack.IntType(32)),
68 share_data_type = pack.ComposedType([
69 ('previous_share_hash', pack.PossiblyNoneType(0, pack.IntType(256))),
70 ('coinbase', pack.VarStrType()),
71 ('nonce', pack.IntType(32)),
72 ('pubkey_hash', pack.IntType(160)),
73 ('subsidy', pack.IntType(64)),
74 ('donation', pack.IntType(16)),
75 ('stale_info', pack.IntType(8)), # 0 nothing, 253 orphan, 254 doa
76 ('desired_version', pack.VarIntType()),
79 share_info_type = pack.ComposedType([
80 ('share_data', share_data_type),
81 ('far_share_hash', pack.PossiblyNoneType(0, pack.IntType(256))),
82 ('max_bits', bitcoin_data.FloatingIntegerType()),
83 ('bits', bitcoin_data.FloatingIntegerType()),
84 ('timestamp', pack.IntType(32)),
87 share_common_type = pack.ComposedType([
88 ('min_header', small_block_header_type),
89 ('share_info', share_info_type),
90 ('ref_merkle_link', pack.ComposedType([
91 ('branch', pack.ListType(pack.IntType(256))),
92 ('index', pack.VarIntType()),
94 ('hash_link', hash_link_type),
96 share1a_type = pack.ComposedType([
97 ('common', share_common_type),
98 ('merkle_link', pack.ComposedType([
99 ('branch', pack.ListType(pack.IntType(256))),
100 ('index', pack.IntType(0)), # it will always be 0
103 share1b_type = pack.ComposedType([
104 ('common', share_common_type),
105 ('other_txs', pack.ListType(bitcoin_data.tx_type)),
108 ref_type = pack.ComposedType([
109 ('identifier', pack.FixedStrType(64//8)),
110 ('share_info', share_info_type),
113 gentx_before_refhash = pack.VarStrType().pack(DONATION_SCRIPT) + pack.IntType(64).pack(0) + pack.VarStrType().pack('\x20' + pack.IntType(256).pack(0))[:2]
116 def generate_transaction(cls, tracker, share_data, block_target, desired_timestamp, desired_target, ref_merkle_link, net):
117 previous_share = tracker.shares[share_data['previous_share_hash']] if share_data['previous_share_hash'] is not None else None
119 height, last = tracker.get_height_and_last(share_data['previous_share_hash'])
120 assert height >= net.REAL_CHAIN_LENGTH or last is None
121 if height < net.TARGET_LOOKBEHIND:
122 pre_target3 = net.MAX_TARGET
124 attempts_per_second = get_pool_attempts_per_second(tracker, share_data['previous_share_hash'], net.TARGET_LOOKBEHIND, min_work=True, integer=True)
125 pre_target = 2**256//(net.SHARE_PERIOD*attempts_per_second) - 1 if attempts_per_second else 2**256-1
126 pre_target2 = math.clip(pre_target, (previous_share.max_target*9//10, previous_share.max_target*11//10))
127 pre_target3 = math.clip(pre_target2, (0, net.MAX_TARGET))
128 max_bits = bitcoin_data.FloatingInteger.from_target_upper_bound(pre_target3)
129 bits = bitcoin_data.FloatingInteger.from_target_upper_bound(math.clip(desired_target, (pre_target3//10, pre_target3)))
131 weights, total_weight, donation_weight = tracker.get_cumulative_weights(share_data['previous_share_hash'],
132 min(height, net.REAL_CHAIN_LENGTH),
133 65535*net.SPREAD*bitcoin_data.target_to_average_attempts(block_target),
135 assert total_weight == sum(weights.itervalues()) + donation_weight, (total_weight, sum(weights.itervalues()) + donation_weight)
137 amounts = dict((script, share_data['subsidy']*(199*weight)//(200*total_weight)) for script, weight in weights.iteritems()) # 99.5% goes according to weights prior to this share
138 this_script = bitcoin_data.pubkey_hash_to_script2(share_data['pubkey_hash'])
139 amounts[this_script] = amounts.get(this_script, 0) + share_data['subsidy']//200 # 0.5% goes to block finder
140 amounts[DONATION_SCRIPT] = amounts.get(DONATION_SCRIPT, 0) + share_data['subsidy'] - sum(amounts.itervalues()) # all that's left over is the donation weight and some extra satoshis due to rounding
142 if sum(amounts.itervalues()) != share_data['subsidy'] or any(x < 0 for x in amounts.itervalues()):
145 dests = sorted(amounts.iterkeys(), key=lambda script: (script == DONATION_SCRIPT, amounts[script], script))[-4000:] # block length limit, unlikely to ever be hit
148 share_data=share_data,
149 far_share_hash=None if last is None and height < 99 else tracker.get_nth_parent_hash(share_data['previous_share_hash'], 99),
152 timestamp=math.clip(desired_timestamp, (
153 (previous_share.timestamp + net.SHARE_PERIOD) - (net.SHARE_PERIOD - 1), # = previous_share.timestamp + 1
154 (previous_share.timestamp + net.SHARE_PERIOD) + (net.SHARE_PERIOD - 1),
155 )) if previous_share is not None else desired_timestamp,
158 return share_info, dict(
161 previous_output=None,
163 script=share_data['coinbase'].ljust(2, '\x00'),
165 tx_outs=[dict(value=amounts[script], script=script) for script in dests if amounts[script]] + [dict(
167 script='\x20' + cls.get_ref_hash(net, share_info, ref_merkle_link),
173 def get_ref_hash(cls, net, share_info, ref_merkle_link):
174 return pack.IntType(256).pack(bitcoin_data.check_merkle_link(bitcoin_data.hash256(cls.ref_type.pack(dict(
175 identifier=net.IDENTIFIER,
176 share_info=share_info,
177 ))), ref_merkle_link))
179 __slots__ = 'net peer common min_header share_info hash_link merkle_link other_txs hash share_data max_target target timestamp previous_hash new_script desired_version gentx_hash header pow_hash header_hash time_seen'.split(' ')
181 def __init__(self, net, peer, common, merkle_link, other_txs):
185 self.min_header = common['min_header']
186 self.share_info = common['share_info']
187 self.hash_link = common['hash_link']
188 self.merkle_link = merkle_link
189 self.other_txs = other_txs
191 if len(self.share_info['share_data']['coinbase']) > 100:
192 raise ValueError('''coinbase too large! %i bytes''' % (len(self.self.share_data['coinbase']),))
194 if len(merkle_link['branch']) > 16:
195 raise ValueError('merkle branch too long!')
197 if p2pool.DEBUG and other_txs is not None and bitcoin_data.calculate_merkle_link([0] + [bitcoin_data.hash256(bitcoin_data.tx_type.pack(x)) for x in other_txs], 0) != merkle_link:
198 raise ValueError('merkle_link and other_txs do not match')
200 assert not self.hash_link['extra_data'], repr(self.hash_link['extra_data'])
202 self.share_data = self.share_info['share_data']
203 self.max_target = self.share_info['max_bits'].target
204 self.target = self.share_info['bits'].target
205 self.timestamp = self.share_info['timestamp']
206 self.previous_hash = self.share_data['previous_share_hash']
207 self.new_script = bitcoin_data.pubkey_hash_to_script2(self.share_data['pubkey_hash'])
208 self.desired_version = self.share_data['desired_version']
210 if self.timestamp < net.SWITCH_TIME:
211 from p2pool import p2p
212 raise p2p.PeerMisbehavingError('peer sent a new-style share with a timestamp before the switch time')
214 self.gentx_hash = check_hash_link(
216 self.get_ref_hash(net, self.share_info, common['ref_merkle_link']) + pack.IntType(32).pack(0),
217 self.gentx_before_refhash,
219 merkle_root = bitcoin_data.check_merkle_link(self.gentx_hash, merkle_link)
220 self.header = dict(self.min_header, merkle_root=merkle_root)
221 self.pow_hash = net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(self.header))
222 self.hash = self.header_hash = bitcoin_data.hash256(bitcoin_data.block_header_type.pack(self.header))
224 if self.pow_hash > self.target:
225 raise p2p.PeerMisbehavingError('share PoW invalid')
227 if other_txs is not None and not self.pow_hash <= self.header['bits'].target:
228 raise ValueError('other_txs provided when not a block solution')
229 if other_txs is None and self.pow_hash <= self.header['bits'].target:
230 raise ValueError('other_txs not provided when a block solution')
233 self.time_seen = time.time()
236 return '<Share %s>' % (' '.join('%s=%r' % (k, getattr(self, k)) for k in self.__slots__),)
239 if not self.pow_hash <= self.header['bits'].target: # share1a
240 return dict(type=4, contents=self.share1a_type.pack(dict(common=self.common, merkle_link=self.merkle_link)))
242 return dict(type=5, contents=self.share1b_type.pack(dict(common=self.common, other_txs=self.other_txs)))
244 def check(self, tracker):
245 share_info, gentx = self.generate_transaction(tracker, self.share_info['share_data'], self.header['bits'].target, self.share_info['timestamp'], self.share_info['bits'].target, self.common['ref_merkle_link'], self.net)
246 if share_info != self.share_info:
247 raise ValueError('share_info invalid')
248 if bitcoin_data.hash256(bitcoin_data.tx_type.pack(gentx)) != self.gentx_hash:
249 raise ValueError('''gentx doesn't match hash_link''')
250 return gentx # only used by as_block
252 def as_block(self, tracker):
253 if self.other_txs is None:
254 raise ValueError('share does not contain all txs')
255 return dict(header=self.header, txs=[self.check(tracker)] + self.other_txs)
257 class WeightsSkipList(forest.TrackerSkipList):
258 # share_count, weights, total_weight
260 def get_delta(self, element):
261 from p2pool.bitcoin import data as bitcoin_data
262 share = self.tracker.shares[element]
263 att = bitcoin_data.target_to_average_attempts(share.target)
264 return 1, {share.new_script: att*(65535-share.share_data['donation'])}, att*65535, att*share.share_data['donation']
266 def combine_deltas(self, (share_count1, weights1, total_weight1, total_donation_weight1), (share_count2, weights2, total_weight2, total_donation_weight2)):
267 return share_count1 + share_count2, math.add_dicts(weights1, weights2), total_weight1 + total_weight2, total_donation_weight1 + total_donation_weight2
269 def initial_solution(self, start, (max_shares, desired_weight)):
270 assert desired_weight % 65535 == 0, divmod(desired_weight, 65535)
273 def apply_delta(self, (share_count1, weights_list, total_weight1, total_donation_weight1), (share_count2, weights2, total_weight2, total_donation_weight2), (max_shares, desired_weight)):
274 if total_weight1 + total_weight2 > desired_weight and share_count2 == 1:
275 assert (desired_weight - total_weight1) % 65535 == 0
276 script, = weights2.iterkeys()
277 new_weights = {script: (desired_weight - total_weight1)//65535*weights2[script]//(total_weight2//65535)}
278 return share_count1 + share_count2, (weights_list, new_weights), desired_weight, total_donation_weight1 + (desired_weight - total_weight1)//65535*total_donation_weight2//(total_weight2//65535)
279 return share_count1 + share_count2, (weights_list, weights2), total_weight1 + total_weight2, total_donation_weight1 + total_donation_weight2
281 def judge(self, (share_count, weights_list, total_weight, total_donation_weight), (max_shares, desired_weight)):
282 if share_count > max_shares or total_weight > desired_weight:
284 elif share_count == max_shares or total_weight == desired_weight:
289 def finalize(self, (share_count, weights_list, total_weight, total_donation_weight), (max_shares, desired_weight)):
290 assert share_count <= max_shares and total_weight <= desired_weight
291 assert share_count == max_shares or total_weight == desired_weight
292 return math.add_dicts(*math.flatten_linked_list(weights_list)), total_weight, total_donation_weight
294 class OkayTracker(forest.Tracker):
295 def __init__(self, net, my_share_hashes, my_doa_share_hashes):
296 forest.Tracker.__init__(self, delta_type=forest.get_attributedelta_type(dict(forest.AttributeDelta.attrs,
297 work=lambda share: bitcoin_data.target_to_average_attempts(share.target),
298 min_work=lambda share: bitcoin_data.target_to_average_attempts(share.max_target),
301 self.verified = forest.Tracker(delta_type=forest.get_attributedelta_type(dict(forest.AttributeDelta.attrs,
302 work=lambda share: bitcoin_data.target_to_average_attempts(share.target),
303 my_count=lambda share: 1 if share.hash in my_share_hashes else 0,
304 my_doa_count=lambda share: 1 if share.hash in my_doa_share_hashes else 0,
305 my_orphan_announce_count=lambda share: 1 if share.hash in my_share_hashes and share.share_data['stale_info'] == 253 else 0,
306 my_dead_announce_count=lambda share: 1 if share.hash in my_share_hashes and share.share_data['stale_info'] == 254 else 0,
308 self.verified.get_nth_parent_hash = self.get_nth_parent_hash # self is a superset of self.verified
310 self.get_cumulative_weights = WeightsSkipList(self)
312 def attempt_verify(self, share):
313 if share.hash in self.verified.shares:
315 height, last = self.get_height_and_last(share.hash)
316 if height < self.net.CHAIN_LENGTH + 1 and last is not None:
317 raise AssertionError()
321 log.err(None, 'Share check failed:')
324 self.verified.add(share)
327 def think(self, block_rel_height_func, previous_block, bits):
331 # make 'unverified heads' set?
332 # for each overall head, attempt verification
333 # if it fails, attempt on parent, and repeat
334 # if no successful verification because of lack of parents, request parent
336 for head in set(self.heads) - set(self.verified.heads):
337 head_height, last = self.get_height_and_last(head)
339 for share in self.get_chain(head, head_height if last is None else min(5, max(0, head_height - self.net.CHAIN_LENGTH))):
340 if self.attempt_verify(share):
342 if share.hash in self.heads:
347 self.shares[random.choice(list(self.reverse_shares[last]))].peer,
349 max(x.timestamp for x in self.get_chain(head, min(head_height, 5))),
350 min(x.target for x in self.get_chain(head, min(head_height, 5))),
353 assert bad not in self.verified.shares
354 assert bad in self.heads
359 # try to get at least CHAIN_LENGTH height for each verified head, requesting parents if needed
360 for head in list(self.verified.heads):
361 head_height, last_hash = self.verified.get_height_and_last(head)
362 last_height, last_last_hash = self.get_height_and_last(last_hash)
363 # XXX review boundary conditions
364 want = max(self.net.CHAIN_LENGTH - head_height, 0)
365 can = max(last_height - 1 - self.net.CHAIN_LENGTH, 0) if last_last_hash is not None else last_height
367 #print 'Z', head_height, last_hash is None, last_height, last_last_hash is None, want, can, get
368 for share in self.get_chain(last_hash, get):
369 if not self.attempt_verify(share):
371 if head_height < self.net.CHAIN_LENGTH and last_last_hash is not None:
373 self.shares[random.choice(list(self.verified.reverse_shares[last_hash]))].peer,
375 max(x.timestamp for x in self.get_chain(head, min(head_height, 5))),
376 min(x.target for x in self.get_chain(head, min(head_height, 5))),
380 decorated_tails = sorted((self.score(max(self.verified.tails[tail_hash], key=self.verified.get_work), block_rel_height_func), tail_hash) for tail_hash in self.verified.tails)
382 print len(decorated_tails), 'tails:'
383 for score, tail_hash in decorated_tails:
384 print format_hash(tail_hash), score
385 best_tail_score, best_tail = decorated_tails[-1] if decorated_tails else (None, None)
387 # decide best verified head
388 decorated_heads = sorted(((
389 self.verified.get_work(self.verified.get_nth_parent_hash(h, min(5, self.verified.get_height(h)))),
390 #self.shares[h].peer is None,
391 self.shares[h].pow_hash <= self.shares[h].header['bits'].target, # is block solution
392 (self.shares[h].header['previous_block'], self.shares[h].header['bits']) == (previous_block, bits) or self.shares[h].peer is None,
393 -self.shares[h].time_seen,
394 ), h) for h in self.verified.tails.get(best_tail, []))
396 print len(decorated_heads), 'heads. Top 10:'
397 for score, head_hash in decorated_heads[-10:]:
398 print ' ', format_hash(head_hash), format_hash(self.shares[head_hash].previous_hash), score
399 best_head_score, best = decorated_heads[-1] if decorated_heads else (None, None)
403 for i in xrange(1000):
405 for share_hash, tail in self.heads.iteritems():
406 if share_hash in [head_hash for score, head_hash in decorated_heads[-5:]]:
409 if self.shares[share_hash].time_seen > time.time() - 300:
412 if share_hash not in self.verified.shares and max(self.shares[after_tail_hash].time_seen for after_tail_hash in self.reverse_shares.get(tail)) > time.time() - 120: # XXX stupid
415 to_remove.add(share_hash)
418 for share_hash in to_remove:
419 self.remove(share_hash)
420 if share_hash in self.verified.shares:
421 self.verified.remove(share_hash)
422 #print "_________", to_remove
425 for i in xrange(1000):
427 for tail, heads in self.tails.iteritems():
428 if min(self.get_height(head) for head in heads) < 2*self.net.CHAIN_LENGTH + 10:
430 for aftertail in self.reverse_shares.get(tail, set()):
431 if len(self.reverse_shares[self.shares[aftertail].previous_hash]) > 1: # XXX
434 to_remove.add(aftertail)
437 # if removed from this, it must be removed from verified
439 for aftertail in to_remove:
440 if self.shares[aftertail].previous_hash not in self.tails:
441 print "erk", aftertail, self.shares[aftertail].previous_hash
443 self.remove(aftertail)
444 if aftertail in self.verified.shares:
445 self.verified.remove(aftertail)
447 #print "removed! %i %f" % (len(to_remove), (end - start)/len(to_remove))
450 best_share = self.shares[best]
451 if (best_share.header['previous_block'], best_share.header['bits']) != (previous_block, bits) and best_share.header_hash != previous_block and best_share.peer is not None:
453 print 'Stale detected! %x < %x' % (best_share.header['previous_block'], previous_block)
454 best = best_share.previous_hash
456 timestamp_cutoff = min(int(time.time()), best_share.timestamp) - 3600
457 target_cutoff = 2**256//(self.net.SHARE_PERIOD*best_tail_score[1] + 1) * 2 if best_tail_score[1] is not None else 2**256-1
459 timestamp_cutoff = int(time.time()) - 24*60*60
460 target_cutoff = 2**256-1
463 print 'Desire %i shares. Cutoff: %s old diff>%.2f' % (len(desired), math.format_dt(time.time() - timestamp_cutoff), bitcoin_data.target_to_difficulty(target_cutoff))
464 for peer, hash, ts, targ in desired:
465 print ' ', '%s:%i' % peer.addr if peer is not None else None, format_hash(hash), math.format_dt(time.time() - ts), bitcoin_data.target_to_difficulty(targ), ts >= timestamp_cutoff, targ <= target_cutoff
467 return best, [(peer, hash) for peer, hash, ts, targ in desired if ts >= timestamp_cutoff and targ <= target_cutoff]
469 def score(self, share_hash, block_rel_height_func):
470 # returns approximate lower bound on chain's hashrate in the last self.net.CHAIN_LENGTH*15//16*self.net.SHARE_PERIOD time
472 head_height = self.verified.get_height(share_hash)
473 if head_height < self.net.CHAIN_LENGTH:
474 return head_height, None
476 end_point = self.verified.get_nth_parent_hash(share_hash, self.net.CHAIN_LENGTH*15//16)
478 block_height = max(block_rel_height_func(share.header['previous_block']) for share in
479 self.verified.get_chain(end_point, self.net.CHAIN_LENGTH//16))
481 return self.net.CHAIN_LENGTH, (self.verified.get_work(share_hash) - self.verified.get_work(end_point))//((0 - block_height + 1)*self.net.PARENT.BLOCK_PERIOD)
483 def get_pool_attempts_per_second(tracker, previous_share_hash, dist, min_work=False, integer=False):
485 near = tracker.shares[previous_share_hash]
486 far = tracker.shares[tracker.get_nth_parent_hash(previous_share_hash, dist - 1)]
487 attempts = tracker.get_work(near.hash) - tracker.get_work(far.hash) if not min_work else tracker.get_delta(near.hash).min_work - tracker.get_delta(far.hash).min_work
488 time = near.timestamp - far.timestamp
492 return attempts//time
495 def get_average_stale_prop(tracker, share_hash, lookbehind):
496 stales = sum(1 for share in tracker.get_chain(share_hash, lookbehind) if share.share_data['stale_info'] != 0)
497 return stales/(lookbehind + stales)
499 def get_expected_payouts(tracker, best_share_hash, block_target, subsidy, net):
500 weights, total_weight, donation_weight = tracker.get_cumulative_weights(best_share_hash, min(tracker.get_height(best_share_hash), net.REAL_CHAIN_LENGTH), 65535*net.SPREAD*bitcoin_data.target_to_average_attempts(block_target))
501 res = dict((script, subsidy*weight//total_weight) for script, weight in weights.iteritems())
502 res[DONATION_SCRIPT] = res.get(DONATION_SCRIPT, 0) + subsidy - sum(res.itervalues())
505 def get_desired_version_counts(tracker, best_share_hash, dist):
507 for share in tracker.get_chain(best_share_hash, dist):
508 res[share.desired_version] = res.get(share.desired_version, 0) + bitcoin_data.target_to_average_attempts(share.target)
514 return '%08x' % (x % 2**32)
516 class ShareStore(object):
517 def __init__(self, prefix, net):
518 self.filename = prefix
519 self.dirname = os.path.dirname(os.path.abspath(prefix))
520 self.filename = os.path.basename(os.path.abspath(prefix))
522 self.known = None # will be filename -> set of share hashes, set of verified hashes
523 self.known_desired = None
525 def get_shares(self):
526 if self.known is not None:
527 raise AssertionError()
529 filenames, next = self.get_filenames_and_next()
530 for filename in filenames:
531 share_hashes, verified_hashes = known.setdefault(filename, (set(), set()))
532 with open(filename, 'rb') as f:
535 type_id_str, data_hex = line.strip().split(' ')
536 type_id = int(type_id_str)
542 verified_hash = int(data_hex, 16)
543 yield 'verified_hash', verified_hash
544 verified_hashes.add(verified_hash)
546 raw_share = share_type.unpack(data_hex.decode('hex'))
547 if raw_share['type'] in [0, 1, 2, 3]:
549 share = load_share(raw_share, self.net, None)
551 share_hashes.add(share.hash)
553 raise NotImplementedError("share type %i" % (type_id,))
555 log.err(None, "Error while reading saved shares, continuing where left off:")
557 self.known_desired = dict((k, (set(a), set(b))) for k, (a, b) in known.iteritems())
559 def _add_line(self, line):
560 filenames, next = self.get_filenames_and_next()
561 if filenames and os.path.getsize(filenames[-1]) < 10e6:
562 filename = filenames[-1]
566 with open(filename, 'ab') as f:
571 def add_share(self, share):
572 for filename, (share_hashes, verified_hashes) in self.known.iteritems():
573 if share.hash in share_hashes:
576 filename = self._add_line("%i %s" % (5, share_type.pack(share.as_share()).encode('hex')))
577 share_hashes, verified_hashes = self.known.setdefault(filename, (set(), set()))
578 share_hashes.add(share.hash)
579 share_hashes, verified_hashes = self.known_desired.setdefault(filename, (set(), set()))
580 share_hashes.add(share.hash)
582 def add_verified_hash(self, share_hash):
583 for filename, (share_hashes, verified_hashes) in self.known.iteritems():
584 if share_hash in verified_hashes:
587 filename = self._add_line("%i %x" % (2, share_hash))
588 share_hashes, verified_hashes = self.known.setdefault(filename, (set(), set()))
589 verified_hashes.add(share_hash)
590 share_hashes, verified_hashes = self.known_desired.setdefault(filename, (set(), set()))
591 verified_hashes.add(share_hash)
593 def get_filenames_and_next(self):
594 suffixes = sorted(int(x[len(self.filename):]) for x in os.listdir(self.dirname) if x.startswith(self.filename) and x[len(self.filename):].isdigit())
595 return [os.path.join(self.dirname, self.filename + str(suffix)) for suffix in suffixes], os.path.join(self.dirname, self.filename + (str(suffixes[-1] + 1) if suffixes else str(0)))
597 def forget_share(self, share_hash):
598 for filename, (share_hashes, verified_hashes) in self.known_desired.iteritems():
599 if share_hash in share_hashes:
600 share_hashes.remove(share_hash)
603 def forget_verified_share(self, share_hash):
604 for filename, (share_hashes, verified_hashes) in self.known_desired.iteritems():
605 if share_hash in verified_hashes:
606 verified_hashes.remove(share_hash)
609 def check_remove(self):
611 for filename, (share_hashes, verified_hashes) in self.known_desired.iteritems():
612 #print filename, len(share_hashes) + len(verified_hashes)
613 if not share_hashes and not verified_hashes:
614 to_remove.add(filename)
615 for filename in to_remove:
616 self.known.pop(filename)
617 self.known_desired.pop(filename)
619 print "REMOVED", filename