p2pool/bitcoin/networks.py

   1 import os
   2 import platform
   3
   4 from twisted.internet import defer
   5
   6 from . import data
   7 from p2pool.util import math, pack
   8 from operator import *
   9
  10 def get_subsidy(nCap, nMaxSubsidy, bnTarget):
  11     bnLowerBound = 0.01
  12     bnUpperBound = bnSubsidyLimit = nMaxSubsidy
  13     bnTargetLimit = 0x00000fffff000000000000000000000000000000000000000000000000000000
  14
  15     while bnLowerBound + 0.01 <= bnUpperBound:
  16         bnMidValue = (bnLowerBound + bnUpperBound) / 2
  17         if pow(bnMidValue, nCap) * bnTargetLimit > pow(bnSubsidyLimit, nCap) * bnTarget:
  18             bnUpperBound = bnMidValue
  19         else:
  20             bnLowerBound = bnMidValue
  21
  22     nSubsidy = round(bnMidValue, 2)
  23
  24     if nSubsidy > bnMidValue:
  25         nSubsidy = nSubsidy - 0.01
  26
  27     return int(nSubsidy * 1000000)
  28
  29 nets = dict(
  30     novacoin=math.Object(
  31         P2P_PREFIX='e4e8e9e5'.decode('hex'),
  32         P2P_PORT=7777,
  33         ADDRESS_VERSION=8,
  34         RPC_PORT=8344,
  35         RPC_CHECK=defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
  36             'novacoinaddress' in (yield bitcoind.rpc_help()) and
  37             not (yield bitcoind.rpc_getinfo())['testnet']
  38         )),
  39         SUBSIDY_FUNC=lambda target: get_subsidy(6, 100, target),
  40         BLOCKHASH_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
  41         POW_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
  42         BLOCK_PERIOD=600, # s
  43         SYMBOL='NVC',
  44         CONF_FILE_FUNC=lambda: os.path.join(os.path.join(os.environ['APPDATA'], 'NovaCoin') if platform.system() == 'Windows' else os.path.expanduser('~/Library/Application Support/NovaCoin/') if platform.system() == 'Darwin' else os.path.expanduser('~/.novacoin'), 'novacoin.conf'),
  45         BLOCK_EXPLORER_URL_PREFIX='http://novacoin.ru/block/',
  46         ADDRESS_EXPLORER_URL_PREFIX='http://novacoin.ru/address/',
  47         SANE_TARGET_RANGE=(2**256//1000000000 - 1, 2**256//1000 - 1),
  48     ),
  49     novacoin_testnet=math.Object(
  50         P2P_PREFIX='cdf2c0ef'.decode('hex'),
  51         P2P_PORT=17777,
  52         ADDRESS_VERSION=111,
  53         RPC_PORT=8344,
  54         RPC_CHECK=defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
  55             'novacoinaddress' in (yield bitcoind.rpc_help()) and
  56             (yield bitcoind.rpc_getinfo())['testnet']
  57         )),
  58         SUBSIDY_FUNC=lambda target: get_subsidy(6, 100, target),
  59         BLOCKHASH_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
  60         POW_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
  61         BLOCK_PERIOD=600, # s
  62         SYMBOL='tNVC',
  63         CONF_FILE_FUNC=lambda: os.path.join(os.path.join(os.environ['APPDATA'], 'NovaCoin') if platform.system() == 'Windows' else os.path.expanduser('~/Library/Application Support/NovaCoin/') if platform.system() == 'Darwin' else os.path.expanduser('~/.novacoin'), 'novacoin.conf'),
  64         BLOCK_EXPLORER_URL_PREFIX='http://nonexistent-novacoin-testnet-explorer/block/',
  65         ADDRESS_EXPLORER_URL_PREFIX='http://nonexistent-novacoin-testnet-explorer/address/',
  66         SANE_TARGET_RANGE=(2**256//1000000000 - 1, 2**256//1000 - 1),
  67     ),
  68 )
  69 for net_name, net in nets.iteritems():
  70     net.NAME = net_name