Пример #1
0
    def get_work(self, pubkey_hash, desired_share_target, desired_pseudoshare_target):
        global print_throttle
        if (self.node.p2p_node is None or len(self.node.p2p_node.peers) == 0) and self.node.net.PERSIST:
            raise jsonrpc.Error_for_code(-12345)(u'p2pool is not connected to any peers')
        if self.node.best_share_var.value is None and self.node.net.PERSIST:
            raise jsonrpc.Error_for_code(-12345)(u'p2pool is downloading shares')

        if self.merged_work.value:
            tree, size = dash_data.make_auxpow_tree(self.merged_work.value)
            mm_hashes = [self.merged_work.value.get(tree.get(i), dict(hash=0))['hash'] for i in xrange(size)]
            mm_data = '\xfa\xbemm' + dash_data.aux_pow_coinbase_type.pack(dict(
                merkle_root=dash_data.merkle_hash(mm_hashes),
                size=size,
                nonce=0,
            ))
            mm_later = [(aux_work, mm_hashes.index(aux_work['hash']), mm_hashes) for chain_id, aux_work in self.merged_work.value.iteritems()]
        else:
            mm_data = ''
            mm_later = []

        tx_hashes = [dash_data.hash256(dash_data.tx_type.pack(tx)) for tx in self.current_work.value['transactions']]
        tx_map = dict(zip(tx_hashes, self.current_work.value['transactions']))

        previous_share = self.node.tracker.items[self.node.best_share_var.value] if self.node.best_share_var.value is not None else None
        if previous_share is None:
            share_type = p2pool_data.Share
        else:
            previous_share_type = type(previous_share)

            if previous_share_type.SUCCESSOR is None or self.node.tracker.get_height(previous_share.hash) < self.node.net.CHAIN_LENGTH:
                share_type = previous_share_type
            else:
                successor_type = previous_share_type.SUCCESSOR

                counts = p2pool_data.get_desired_version_counts(self.node.tracker,
                    self.node.tracker.get_nth_parent_hash(previous_share.hash, self.node.net.CHAIN_LENGTH*9//10), self.node.net.CHAIN_LENGTH//10)
                upgraded = counts.get(successor_type.VERSION, 0)/sum(counts.itervalues())
                if upgraded > .65:
                    print 'Switchover imminent. Upgraded: %.3f%% Threshold: %.3f%%' % (upgraded*100, 95)
                # Share -> NewShare only valid if 95% of hashes in [net.CHAIN_LENGTH*9//10, net.CHAIN_LENGTH] for new version
                if counts.get(successor_type.VERSION, 0) > sum(counts.itervalues())*95//100:
                    share_type = successor_type
                else:
                    share_type = previous_share_type

        if desired_share_target is None:
            desired_share_target = 2**256-1
            local_hash_rate = self._estimate_local_hash_rate()
            if local_hash_rate is not None:
                desired_share_target = min(desired_share_target,
                    dash_data.average_attempts_to_target(local_hash_rate * self.node.net.SHARE_PERIOD / 0.0167)) # limit to 1.67% of pool shares by modulating share difficulty

            local_addr_rates = self.get_local_addr_rates()
            lookbehind = 3600//self.node.net.SHARE_PERIOD
            block_subsidy = self.node.dashd_work.value['subsidy']
            if previous_share is not None and self.node.tracker.get_height(previous_share.hash) > lookbehind:
                expected_payout_per_block = local_addr_rates.get(pubkey_hash, 0)/p2pool_data.get_pool_attempts_per_second(self.node.tracker, self.node.best_share_var.value, lookbehind) \
                    * block_subsidy*(1-self.donation_percentage/100) # XXX doesn't use global stale rate to compute pool hash
                if expected_payout_per_block < self.node.net.PARENT.DUST_THRESHOLD:
                    desired_share_target = min(desired_share_target,
                        dash_data.average_attempts_to_target((dash_data.target_to_average_attempts(self.node.dashd_work.value['bits'].target)*self.node.net.SPREAD)*self.node.net.PARENT.DUST_THRESHOLD/block_subsidy)
                    )

        if True:
            share_info, gentx, other_transaction_hashes, get_share = share_type.generate_transaction(
                tracker=self.node.tracker,
                share_data=dict(
                    previous_share_hash=self.node.best_share_var.value,
                    coinbase=(script.create_push_script([
                        self.current_work.value['height'],
                        ] + ([mm_data] if mm_data else []) + [
                    ]) + self.current_work.value['coinbaseflags'] + self.node.net.COINBASEEXT)[:100],
                    nonce=random.randrange(2**32),
                    pubkey_hash=pubkey_hash,
                    subsidy=self.current_work.value['subsidy'],
                    donation=math.perfect_round(65535*self.donation_percentage/100),
                    stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
                        'orphan' if orphans > orphans_recorded_in_chain else
                        'doa' if doas > doas_recorded_in_chain else
                        None
                    )(*self.get_stale_counts()),
                    desired_version=(share_type.SUCCESSOR if share_type.SUCCESSOR is not None else share_type).VOTING_VERSION,
                    payee=self.current_work.value['payee'],
                    payee_amount=self.current_work.value['payee_amount'],
                ),
                block_target=self.current_work.value['bits'].target,
                desired_timestamp=int(time.time() + 0.5),
                desired_target=desired_share_target,
                ref_merkle_link=dict(branch=[], index=0),
                desired_other_transaction_hashes_and_fees=zip(tx_hashes, self.current_work.value['transaction_fees']),
                net=self.node.net,
                known_txs=tx_map,
                base_subsidy=self.node.net.PARENT.SUBSIDY_FUNC(self.current_work.value['bits'].bits, self.current_work.value['height']),
                payee_address=self.current_work.value['payee_address'],
            )

        packed_gentx = dash_data.tx_type.pack(gentx)
        other_transactions = [tx_map[tx_hash] for tx_hash in other_transaction_hashes]

        mm_later = [(dict(aux_work, target=aux_work['target'] if aux_work['target'] != 'p2pool' else share_info['bits'].target), index, hashes) for aux_work, index, hashes in mm_later]

        if desired_pseudoshare_target is None:
            target = 2**256-1
            local_hash_rate = self._estimate_local_hash_rate()
            if local_hash_rate is not None:
                target = min(target,
                    dash_data.average_attempts_to_target(local_hash_rate * 1)) # limit to 1 share response every second by modulating pseudoshare difficulty
        else:
            target = desired_pseudoshare_target
        target = max(target, share_info['bits'].target)
        for aux_work, index, hashes in mm_later:
            target = max(target, aux_work['target'])
        target = math.clip(target, self.node.net.PARENT.SANE_TARGET_RANGE)

        getwork_time = time.time()
        lp_count = self.new_work_event.times
        merkle_link = dash_data.calculate_merkle_link([None] + other_transaction_hashes, 0)

        if print_throttle is 0.0:
            print_throttle = time.time()
        else:
            current_time = time.time()
            if (current_time - print_throttle) > 5.0:
                print 'New work for worker! Difficulty: %.06f Share difficulty: %.06f Total block value: %.6f %s including %i transactions' % (
                    dash_data.target_to_difficulty(target),
                    dash_data.target_to_difficulty(share_info['bits'].target),
                    self.current_work.value['subsidy']*1e-8, self.node.net.PARENT.SYMBOL,
                    len(self.current_work.value['transactions']),
                )
                print_throttle = time.time()

        #need this for stats
        self.last_work_shares.value[dash_data.pubkey_hash_to_address(pubkey_hash, self.node.net.PARENT)]=share_info['bits']

        ba = dict(
            version=min(self.current_work.value['version'], 3),
            previous_block=self.current_work.value['previous_block'],
            merkle_link=merkle_link,
            coinb1=packed_gentx[:-self.COINBASE_NONCE_LENGTH-4],
            coinb2=packed_gentx[-4:],
            timestamp=self.current_work.value['time'],
            bits=self.current_work.value['bits'],
            share_target=target,
        )

        received_header_hashes = set()

        def got_response(header, user, coinbase_nonce):
            assert len(coinbase_nonce) == self.COINBASE_NONCE_LENGTH
            new_packed_gentx = packed_gentx[:-self.COINBASE_NONCE_LENGTH-4] + coinbase_nonce + packed_gentx[-4:] if coinbase_nonce != '\0'*self.COINBASE_NONCE_LENGTH else packed_gentx
            new_gentx = dash_data.tx_type.unpack(new_packed_gentx) if coinbase_nonce != '\0'*self.COINBASE_NONCE_LENGTH else gentx

            header_hash = self.node.net.PARENT.BLOCKHASH_FUNC(dash_data.block_header_type.pack(header))
            pow_hash = self.node.net.PARENT.POW_FUNC(dash_data.block_header_type.pack(header))
            try:
                if pow_hash <= header['bits'].target or p2pool.DEBUG:
                    if self.node.dashd_work.value['masternode_payments']:
                        helper.submit_block(dict(header=header, txs=[new_gentx] + other_transactions, votes=self.node.dashd_work.value['votes']), False, self.node.factory, self.node.dashd, self.node.dashd_work, self.node.net)
                    else:
                        helper.submit_block(dict(header=header, txs=[new_gentx] + other_transactions), False, self.node.factory, self.node.dashd, self.node.dashd_work, self.node.net)
                    if pow_hash <= header['bits'].target:
                        print
                        print 'GOT BLOCK FROM MINER! Passing to dashd! %s%064x' % (self.node.net.PARENT.BLOCK_EXPLORER_URL_PREFIX, header_hash)
                        print
            except:
                log.err(None, 'Error while processing potential block:')

            user, _, _, _ = self.get_user_details(user)
            assert header['previous_block'] == ba['previous_block']
            assert header['merkle_root'] == dash_data.check_merkle_link(dash_data.hash256(new_packed_gentx), merkle_link)
            assert header['bits'] == ba['bits']

            on_time = self.new_work_event.times == lp_count

            for aux_work, index, hashes in mm_later:
                try:
                    if pow_hash <= aux_work['target'] or p2pool.DEBUG:
                        df = deferral.retry('Error submitting merged block: (will retry)', 10, 10)(aux_work['merged_proxy'].rpc_getauxblock)(
                            pack.IntType(256, 'big').pack(aux_work['hash']).encode('hex'),
                            dash_data.aux_pow_type.pack(dict(
                                merkle_tx=dict(
                                    tx=new_gentx,
                                    block_hash=header_hash,
                                    merkle_link=merkle_link,
                                ),
                                merkle_link=dash_data.calculate_merkle_link(hashes, index),
                                parent_block_header=header,
                            )).encode('hex'),
                        )
                        @df.addCallback
                        def _(result, aux_work=aux_work):
                            if result != (pow_hash <= aux_work['target']):
                                print >>sys.stderr, 'Merged block submittal result: %s Expected: %s' % (result, pow_hash <= aux_work['target'])
                            else:
                                print 'Merged block submittal result: %s' % (result,)
                        @df.addErrback
                        def _(err):
                            log.err(err, 'Error submitting merged block:')
                except:
                    log.err(None, 'Error while processing merged mining POW:')

            if pow_hash <= share_info['bits'].target and header_hash not in received_header_hashes:
                last_txout_nonce = pack.IntType(8*self.COINBASE_NONCE_LENGTH).unpack(coinbase_nonce)
                share = get_share(header, last_txout_nonce)

                print 'GOT SHARE! %s %s prev %s age %.2fs%s' % (
                    user,
                    p2pool_data.format_hash(share.hash),
                    p2pool_data.format_hash(share.previous_hash),
                    time.time() - getwork_time,
                    ' DEAD ON ARRIVAL' if not on_time else '',
                )
                self.my_share_hashes.add(share.hash)
                if not on_time:
                    self.my_doa_share_hashes.add(share.hash)

                self.node.tracker.add(share)
                self.node.set_best_share()

                try:
                    if (pow_hash <= header['bits'].target or p2pool.DEBUG) and self.node.p2p_node is not None:
                        self.node.p2p_node.broadcast_share(share.hash)
                except:
                    log.err(None, 'Error forwarding block solution:')

                self.share_received.happened(dash_data.target_to_average_attempts(share.target), not on_time, share.hash)

            if pow_hash > target:
                print 'Worker %s submitted share with hash > target:' % (user,)
                print '    Hash:   %56x' % (pow_hash,)
                print '    Target: %56x' % (target,)
            elif header_hash in received_header_hashes:
                print >>sys.stderr, 'Worker %s submitted share more than once!' % (user,)
            else:
                received_header_hashes.add(header_hash)

                self.pseudoshare_received.happened(dash_data.target_to_average_attempts(target), not on_time, user)
                self.recent_shares_ts_work.append((time.time(), dash_data.target_to_average_attempts(target)))
                while len(self.recent_shares_ts_work) > 50:
                    self.recent_shares_ts_work.pop(0)
                self.local_rate_monitor.add_datum(dict(work=dash_data.target_to_average_attempts(target), dead=not on_time, user=user, share_target=share_info['bits'].target))
                self.local_addr_rate_monitor.add_datum(dict(work=dash_data.target_to_average_attempts(target), pubkey_hash=pubkey_hash))

            return on_time

        return ba, got_response
Пример #2
0
    def get_work(self, pubkey_hash, desired_share_target,
                 desired_pseudoshare_target):
        global print_throttle
        if (self.node.p2p_node is None or len(self.node.p2p_node.peers)
                == 0) and self.node.net.PERSIST:
            raise jsonrpc.Error_for_code(-12345)(
                u'p2pool is not connected to any peers')
        if self.node.best_share_var.value is None and self.node.net.PERSIST:
            raise jsonrpc.Error_for_code(-12345)(
                u'p2pool is downloading shares')

        if self.merged_work.value:
            tree, size = dash_data.make_auxpow_tree(self.merged_work.value)
            mm_hashes = [
                self.merged_work.value.get(tree.get(i), dict(hash=0))['hash']
                for i in xrange(size)
            ]
            mm_data = '\xfa\xbemm' + dash_data.aux_pow_coinbase_type.pack(
                dict(
                    merkle_root=dash_data.merkle_hash(mm_hashes),
                    size=size,
                    nonce=0,
                ))
            mm_later = [
                (aux_work, mm_hashes.index(aux_work['hash']), mm_hashes)
                for chain_id, aux_work in self.merged_work.value.iteritems()
            ]
        else:
            mm_data = ''
            mm_later = []

        tx_hashes = [
            dash_data.hash256(dash_data.tx_type.pack(tx))
            for tx in self.current_work.value['transactions']
        ]
        tx_map = dict(zip(tx_hashes, self.current_work.value['transactions']))

        previous_share = self.node.tracker.items[
            self.node.best_share_var.
            value] if self.node.best_share_var.value is not None else None
        if previous_share is None:
            share_type = p2pool_data.Share
        else:
            previous_share_type = type(previous_share)

            if previous_share_type.SUCCESSOR is None or self.node.tracker.get_height(
                    previous_share.hash) < self.node.net.CHAIN_LENGTH:
                share_type = previous_share_type
            else:
                successor_type = previous_share_type.SUCCESSOR

                counts = p2pool_data.get_desired_version_counts(
                    self.node.tracker,
                    self.node.tracker.get_nth_parent_hash(
                        previous_share.hash,
                        self.node.net.CHAIN_LENGTH * 9 // 10),
                    self.node.net.CHAIN_LENGTH // 10)
                upgraded = counts.get(successor_type.VERSION, 0) / sum(
                    counts.itervalues())
                if upgraded > .65:
                    print 'Switchover imminent. Upgraded: %.3f%% Threshold: %.3f%%' % (
                        upgraded * 100, 95)
                # Share -> NewShare only valid if 95% of hashes in [net.CHAIN_LENGTH*9//10, net.CHAIN_LENGTH] for new version
                if counts.get(successor_type.VERSION,
                              0) > sum(counts.itervalues()) * 95 // 100:
                    share_type = successor_type
                else:
                    share_type = previous_share_type

        if desired_share_target is None:
            desired_share_target = 2**256 - 1
            local_hash_rate = self._estimate_local_hash_rate()
            if local_hash_rate is not None:
                desired_share_target = min(
                    desired_share_target,
                    dash_data.average_attempts_to_target(
                        local_hash_rate * self.node.net.SHARE_PERIOD / 0.0167)
                )  # limit to 1.67% of pool shares by modulating share difficulty

            local_addr_rates = self.get_local_addr_rates()
            lookbehind = 3600 // self.node.net.SHARE_PERIOD
            block_subsidy = self.node.dashd_work.value['subsidy']
            if previous_share is not None and self.node.tracker.get_height(
                    previous_share.hash) > lookbehind:
                expected_payout_per_block = local_addr_rates.get(pubkey_hash, 0)/p2pool_data.get_pool_attempts_per_second(self.node.tracker, self.node.best_share_var.value, lookbehind) \
                    * block_subsidy*(1-self.donation_percentage/100) # XXX doesn't use global stale rate to compute pool hash
                if expected_payout_per_block < self.node.net.PARENT.DUST_THRESHOLD:
                    desired_share_target = min(
                        desired_share_target,
                        dash_data.average_attempts_to_target(
                            (dash_data.target_to_average_attempts(
                                self.node.dashd_work.value['bits'].target) *
                             self.node.net.SPREAD) *
                            self.node.net.PARENT.DUST_THRESHOLD /
                            block_subsidy))

        if True:
            share_info, gentx, other_transaction_hashes, get_share = share_type.generate_transaction(
                tracker=self.node.tracker,
                share_data=dict(
                    previous_share_hash=self.node.best_share_var.value,
                    coinbase=(script.create_push_script([
                        self.current_work.value['height'],
                    ] + ([mm_data] if mm_data else []) + []) +
                              self.current_work.value['coinbaseflags'] +
                              self.node.net.COINBASEEXT)[:100],
                    nonce=random.randrange(2**32),
                    pubkey_hash=pubkey_hash,
                    subsidy=self.current_work.value['subsidy'],
                    donation=math.perfect_round(
                        65535 * self.donation_percentage / 100),
                    stale_info=(
                        lambda (orphans, doas), total,
                        (orphans_recorded_in_chain, doas_recorded_in_chain
                         ): 'orphan'
                        if orphans > orphans_recorded_in_chain else 'doa'
                        if doas > doas_recorded_in_chain else None)(
                            *self.get_stale_counts()),
                    desired_version=(share_type.SUCCESSOR
                                     if share_type.SUCCESSOR is not None else
                                     share_type).VOTING_VERSION,
                    payment_amount=self.current_work.value['payment_amount'],
                    packed_payments=self.current_work.value['packed_payments'],
                ),
                block_target=self.current_work.value['bits'].target,
                desired_timestamp=int(time.time() + 0.5),
                desired_target=desired_share_target,
                ref_merkle_link=dict(branch=[], index=0),
                desired_other_transaction_hashes_and_fees=zip(
                    tx_hashes, self.current_work.value['transaction_fees']),
                net=self.node.net,
                known_txs=tx_map,
                base_subsidy=self.current_work.value['subsidy'],
            )

        packed_gentx = dash_data.tx_type.pack(gentx)
        other_transactions = [
            tx_map[tx_hash] for tx_hash in other_transaction_hashes
        ]

        mm_later = [
            (dict(aux_work,
                  target=aux_work['target'] if aux_work['target'] != 'p2pool'
                  else share_info['bits'].target), index, hashes)
            for aux_work, index, hashes in mm_later
        ]

        if desired_pseudoshare_target is None:
            target = 2**256 - 1
            local_hash_rate = self._estimate_local_hash_rate()
            if local_hash_rate is not None:
                target = min(
                    target,
                    dash_data.average_attempts_to_target(local_hash_rate * 1)
                )  # limit to 1 share response every second by modulating pseudoshare difficulty
        else:
            target = desired_pseudoshare_target
        target = max(target, share_info['bits'].target)
        for aux_work, index, hashes in mm_later:
            target = max(target, aux_work['target'])
        target = math.clip(target, self.node.net.PARENT.SANE_TARGET_RANGE)

        getwork_time = time.time()
        lp_count = self.new_work_event.times
        merkle_link = dash_data.calculate_merkle_link(
            [None] + other_transaction_hashes, 0)

        if print_throttle is 0.0:
            print_throttle = time.time()
        else:
            current_time = time.time()
            if (current_time - print_throttle) > 5.0:
                print 'New work for worker %s! Difficulty: %.06f Share difficulty: %.06f Block %s Total value: %.6f %s including %i transactions' % (
                    dash_data.pubkey_hash_to_address(pubkey_hash,
                                                     self.node.net.PARENT),
                    dash_data.target_to_difficulty(target),
                    dash_data.target_to_difficulty(share_info['bits'].target),
                    self.current_work.value['height'],
                    self.current_work.value['subsidy'] * 1e-8,
                    self.node.net.PARENT.SYMBOL,
                    len(self.current_work.value['transactions']),
                )
                print_throttle = time.time()

        #need this for stats
        self.last_work_shares.value[dash_data.pubkey_hash_to_address(
            pubkey_hash, self.node.net.PARENT)] = share_info['bits']

        ba = dict(
            version=self.current_work.value['version'],
            previous_block=self.current_work.value['previous_block'],
            merkle_link=merkle_link,
            coinb1=packed_gentx[:-self.COINBASE_NONCE_LENGTH - 4],
            coinb2=packed_gentx[-4:],
            timestamp=self.current_work.value['time'],
            bits=self.current_work.value['bits'],
            share_target=target,
        )

        received_header_hashes = set()

        def got_response(header, user, coinbase_nonce):
            assert len(coinbase_nonce) == self.COINBASE_NONCE_LENGTH
            new_packed_gentx = packed_gentx[:-self.COINBASE_NONCE_LENGTH - 4] + coinbase_nonce + packed_gentx[
                -4:] if coinbase_nonce != '\0' * self.COINBASE_NONCE_LENGTH else packed_gentx
            new_gentx = dash_data.tx_type.unpack(
                new_packed_gentx
            ) if coinbase_nonce != '\0' * self.COINBASE_NONCE_LENGTH else gentx

            header_hash = self.node.net.PARENT.BLOCKHASH_FUNC(
                dash_data.block_header_type.pack(header))
            pow_hash = self.node.net.PARENT.POW_FUNC(
                dash_data.block_header_type.pack(header))
            try:
                if pow_hash <= header['bits'].target or p2pool.DEBUG:
                    helper.submit_block(
                        dict(header=header,
                             txs=[new_gentx] + other_transactions), False,
                        self.node.factory, self.node.dashd,
                        self.node.dashd_work, self.node.net)
                    if pow_hash <= header['bits'].target:
                        print
                        print 'GOT BLOCK FROM MINER! Passing to dashd! %s%064x' % (
                            self.node.net.PARENT.BLOCK_EXPLORER_URL_PREFIX,
                            header_hash)
                        print
                        # New block found
                        self.node.factory.new_block.happened(header_hash)
            except:
                log.err(None, 'Error while processing potential block:')

            user, _, _, _ = self.get_user_details(user)
            assert header['previous_block'] == ba['previous_block']
            assert header['merkle_root'] == dash_data.check_merkle_link(
                dash_data.hash256(new_packed_gentx), merkle_link)
            assert header['bits'] == ba['bits']

            on_time = self.new_work_event.times == lp_count

            for aux_work, index, hashes in mm_later:
                try:
                    if pow_hash <= aux_work['target'] or p2pool.DEBUG:
                        df = deferral.retry(
                            'Error submitting merged block: (will retry)', 10,
                            10)(aux_work['merged_proxy'].rpc_getauxblock)(
                                pack.IntType(256, 'big').pack(
                                    aux_work['hash']).encode('hex'),
                                dash_data.aux_pow_type.pack(
                                    dict(
                                        merkle_tx=dict(
                                            tx=new_gentx,
                                            block_hash=header_hash,
                                            merkle_link=merkle_link,
                                        ),
                                        merkle_link=dash_data.
                                        calculate_merkle_link(hashes, index),
                                        parent_block_header=header,
                                    )).encode('hex'),
                            )

                        @df.addCallback
                        def _(result, aux_work=aux_work):
                            if result != (pow_hash <= aux_work['target']):
                                print >> sys.stderr, 'Merged block submittal result: %s Expected: %s' % (
                                    result, pow_hash <= aux_work['target'])
                            else:
                                print 'Merged block submittal result: %s' % (
                                    result, )

                        @df.addErrback
                        def _(err):
                            log.err(err, 'Error submitting merged block:')
                except:
                    log.err(None, 'Error while processing merged mining POW:')

            if pow_hash <= share_info[
                    'bits'].target and header_hash not in received_header_hashes:
                last_txout_nonce = pack.IntType(
                    8 * self.COINBASE_NONCE_LENGTH).unpack(coinbase_nonce)
                share = get_share(header, last_txout_nonce)

                print 'GOT SHARE! %s %s prev %s age %.2fs%s' % (
                    user,
                    p2pool_data.format_hash(share.hash),
                    p2pool_data.format_hash(share.previous_hash),
                    time.time() - getwork_time,
                    ' DEAD ON ARRIVAL' if not on_time else '',
                )
                self.my_share_hashes.add(share.hash)
                if not on_time:
                    self.my_doa_share_hashes.add(share.hash)

                self.node.tracker.add(share)
                self.node.set_best_share()

                try:
                    if (pow_hash <= header['bits'].target or
                            p2pool.DEBUG) and self.node.p2p_node is not None:
                        self.node.p2p_node.broadcast_share(share.hash)
                except:
                    log.err(None, 'Error forwarding block solution:')

                self.share_received.happened(
                    dash_data.target_to_average_attempts(share.target),
                    not on_time, share.hash)

            if pow_hash > target:
                print 'Worker %s submitted share with hash > target:' % (
                    user, )
                print '    Hash:   %56x' % (pow_hash, )
                print '    Target: %56x' % (target, )
            elif header_hash in received_header_hashes:
                print >> sys.stderr, 'Worker %s submitted share more than once!' % (
                    user, )
            else:
                received_header_hashes.add(header_hash)

                self.pseudoshare_received.happened(
                    dash_data.target_to_average_attempts(target), not on_time,
                    user)
                self.recent_shares_ts_work.append(
                    (time.time(),
                     dash_data.target_to_average_attempts(target)))
                while len(self.recent_shares_ts_work) > 50:
                    self.recent_shares_ts_work.pop(0)
                self.local_rate_monitor.add_datum(
                    dict(work=dash_data.target_to_average_attempts(target),
                         dead=not on_time,
                         user=user,
                         share_target=share_info['bits'].target))
                self.local_addr_rate_monitor.add_datum(
                    dict(work=dash_data.target_to_average_attempts(target),
                         pubkey_hash=pubkey_hash))

            return on_time

        return ba, got_response