Class: Ethereum::Miner

Inherits:
Object show all
Defined in:
lib/ethereum/miner.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(block) ⇒ Miner

Mines on the current head. Stores received transactions.

The process of finalising a block involves four stages:

  1. validate (or, if mining, determine) uncles;

  2. validate (or, if mining, determine) transactions;

  3. apply rewards;

  4. verify (or, if mining, compute a valid) state and nonce.



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# File 'lib/ethereum/miner.rb', line 36

def initialize(block)
  @nonce = 0
  @block = block

  logger.debug "mining", block_number: @block.number, block_hash: Utils.encode_hex(@block.full_hash), block_difficulty: @block.difficulty
end

Class Method Details

.check_pow(block_number, header_hash, mixhash, nonce, difficulty) ⇒ Object 



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# File 'lib/ethereum/miner.rb', line 7

def check_pow(block_number, header_hash, mixhash, nonce, difficulty)
  Logger.new('eth.miner').debug "checking pow",  block_number: block_number

  return false if mixhash.size != 32 || header_hash.size != 32 || nonce.size != 8

  cache = Ethash.get_cache block_number
  mining_output = hashimoto_light block_number, cache, header_hash, nonce

  return false if mining_output[:mixhash] != mixhash
  return Utils.big_endian_to_int(mining_output[:result]) <= (Constant::TT256 / difficulty)
end

.hashimoto_light(*args) ⇒ Object 



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# File 'lib/ethereum/miner.rb', line 20

def hashimoto_light(*args)
  Ethash.hashimoto_light(*args)
end

Instance Method Details

#mine(rounds = 1000, start_nonce = 0) ⇒ Object 



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# File 'lib/ethereum/miner.rb', line 43

def mine(rounds=1000, start_nonce=0)
  blk = @block
  bin_nonce, mixhash = _mine(blk.number, blk.difficulty, blk.mining_hash, start_nonce, rounds)

  if bin_nonce.true?
    blk.mixhash = mixhash
    blk.nonce = bin_nonce
    return blk
  end
end