diff options
| -rw-r--r-- | src/coins.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/coins.h b/src/coins.h index 47ef90114b..69c24ab45a 100644 --- a/src/coins.h +++ b/src/coins.h @@ -20,6 +20,68 @@ #include <boost/foreach.hpp> #include <unordered_map> +/** + * A UTXO entry. + * + * Serialized format: + * - VARINT((coinbase ? 1 : 0) | (height << 1)) + * - the non-spent CTxOut (via CTxOutCompressor) + */ +class Coin +{ +public: + //! whether the containing transaction was a coinbase + bool fCoinBase; + + //! unspent transaction output + CTxOut out; + + //! at which height the containing transaction was included in the active block chain + uint32_t nHeight; + + //! construct a Coin from a CTxOut and height/coinbase properties. + Coin(CTxOut&& outIn, int nHeightIn, bool fCoinBaseIn) : fCoinBase(fCoinBaseIn), out(std::move(outIn)), nHeight(nHeightIn) {} + Coin(const CTxOut& outIn, int nHeightIn, bool fCoinBaseIn) : fCoinBase(fCoinBaseIn), out(outIn), nHeight(nHeightIn) {} + + void Clear() { + out.SetNull(); + fCoinBase = false; + nHeight = 0; + } + + //! empty constructor + Coin() : fCoinBase(false), nHeight(0) { } + + bool IsCoinBase() const { + return fCoinBase; + } + + template<typename Stream> + void Serialize(Stream &s) const { + assert(!IsPruned()); + uint32_t code = nHeight * 2 + fCoinBase; + ::Serialize(s, VARINT(code)); + ::Serialize(s, CTxOutCompressor(REF(out))); + } + + template<typename Stream> + void Unserialize(Stream &s) { + uint32_t code = 0; + ::Unserialize(s, VARINT(code)); + nHeight = code >> 1; + fCoinBase = code & 1; + ::Unserialize(s, REF(CTxOutCompressor(out))); + } + + bool IsPruned() const { + return out.IsNull(); + } + + size_t DynamicMemoryUsage() const { + return memusage::DynamicUsage(out.scriptPubKey); + } +}; + /** * Pruned version of CTransaction: only retains metadata and unspent transaction outputs * |