src/primitives/block.cpp

   1 // Copyright (c) 2009-2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2015 The Bitcoin Core developers
   3 // Distributed under the MIT software license, see the accompanying
   4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #include "primitives/block.h"
   7
   8 #include "hash.h"
   9 #include "tinyformat.h"
  10 #include "utilstrencodings.h"
  11 #include "crypto/common.h"
  12
  13 uint256 CBlockHeader::GetHash() const
  14 {
  15     return SerializeHash(*this);
  16 }
  17
  18 std::string CBlock::ToString() const
  19 {
  20     std::stringstream s;
  21     s << strprintf("CBlock(hash=%s, ver=0x%08x, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%u)\n",
  22         GetHash().ToString(),
  23         nVersion,
  24         hashPrevBlock.ToString(),
  25         hashMerkleRoot.ToString(),
  26         nTime, nBits, nNonce,
  27         vtx.size());
  28     for (unsigned int i = 0; i < vtx.size(); i++)
  29     {
  30         s << "  " << vtx[i].ToString() << "\n";
  31     }
  32     return s.str();
  33 }
  34
  35 int64_t GetBlockCost(const CBlock& block)
  36 {
  37     // This implements the cost = (stripped_size * 4) + witness_size formula,
  38     // using only serialization with and without witness data. As witness_size
  39     // is equal to total_size - stripped_size, this formula is identical to:
  40     // cost = (stripped_size * 3) + total_size.
  41     return ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * (WITNESS_SCALE_FACTOR - 1) + ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION);
  42 }