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-rw-r--r--src/core.h228
1 files changed, 0 insertions, 228 deletions
diff --git a/src/core.h b/src/core.h
index c881a78f9d..e31a7e6582 100644
--- a/src/core.h
+++ b/src/core.h
@@ -12,8 +12,6 @@
#include <stdint.h>
-#include <boost/foreach.hpp>
-
class CTransaction;
/** An outpoint - a combination of a transaction hash and an index n into its vout */
@@ -324,232 +322,6 @@ public:
};
-/** pruned version of CTransaction: only retains metadata and unspent transaction outputs
- *
- * Serialized format:
- * - VARINT(nVersion)
- * - VARINT(nCode)
- * - unspentness bitvector, for vout[2] and further; least significant byte first
- * - the non-spent CTxOuts (via CTxOutCompressor)
- * - VARINT(nHeight)
- *
- * The nCode value consists of:
- * - bit 1: IsCoinBase()
- * - bit 2: vout[0] is not spent
- * - bit 4: vout[1] is not spent
- * - The higher bits encode N, the number of non-zero bytes in the following bitvector.
- * - In case both bit 2 and bit 4 are unset, they encode N-1, as there must be at
- * least one non-spent output).
- *
- * Example: 0104835800816115944e077fe7c803cfa57f29b36bf87c1d358bb85e
- * <><><--------------------------------------------><---->
- * | \ | /
- * version code vout[1] height
- *
- * - version = 1
- * - code = 4 (vout[1] is not spent, and 0 non-zero bytes of bitvector follow)
- * - unspentness bitvector: as 0 non-zero bytes follow, it has length 0
- * - vout[1]: 835800816115944e077fe7c803cfa57f29b36bf87c1d35
- * * 8358: compact amount representation for 60000000000 (600 BTC)
- * * 00: special txout type pay-to-pubkey-hash
- * * 816115944e077fe7c803cfa57f29b36bf87c1d35: address uint160
- * - height = 203998
- *
- *
- * Example: 0109044086ef97d5790061b01caab50f1b8e9c50a5057eb43c2d9563a4eebbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa486af3b
- * <><><--><--------------------------------------------------><----------------------------------------------><---->
- * / \ \ | | /
- * version code unspentness vout[4] vout[16] height
- *
- * - version = 1
- * - code = 9 (coinbase, neither vout[0] or vout[1] are unspent,
- * 2 (1, +1 because both bit 2 and bit 4 are unset) non-zero bitvector bytes follow)
- * - unspentness bitvector: bits 2 (0x04) and 14 (0x4000) are set, so vout[2+2] and vout[14+2] are unspent
- * - vout[4]: 86ef97d5790061b01caab50f1b8e9c50a5057eb43c2d9563a4ee
- * * 86ef97d579: compact amount representation for 234925952 (2.35 BTC)
- * * 00: special txout type pay-to-pubkey-hash
- * * 61b01caab50f1b8e9c50a5057eb43c2d9563a4ee: address uint160
- * - vout[16]: bbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa4
- * * bbd123: compact amount representation for 110397 (0.001 BTC)
- * * 00: special txout type pay-to-pubkey-hash
- * * 8c988f1a4a4de2161e0f50aac7f17e7f9555caa4: address uint160
- * - height = 120891
- */
-class CCoins
-{
-public:
- // whether transaction is a coinbase
- bool fCoinBase;
-
- // unspent transaction outputs; spent outputs are .IsNull(); spent outputs at the end of the array are dropped
- std::vector<CTxOut> vout;
-
- // at which height this transaction was included in the active block chain
- int nHeight;
-
- // version of the CTransaction; accesses to this value should probably check for nHeight as well,
- // as new tx version will probably only be introduced at certain heights
- int nVersion;
-
- // construct a CCoins from a CTransaction, at a given height
- CCoins(const CTransaction &tx, int nHeightIn) : fCoinBase(tx.IsCoinBase()), vout(tx.vout), nHeight(nHeightIn), nVersion(tx.nVersion) {
- ClearUnspendable();
- }
-
- // empty constructor
- CCoins() : fCoinBase(false), vout(0), nHeight(0), nVersion(0) { }
-
- // remove spent outputs at the end of vout
- void Cleanup() {
- while (vout.size() > 0 && vout.back().IsNull())
- vout.pop_back();
- if (vout.empty())
- std::vector<CTxOut>().swap(vout);
- }
-
- void ClearUnspendable() {
- BOOST_FOREACH(CTxOut &txout, vout) {
- if (txout.scriptPubKey.IsUnspendable())
- txout.SetNull();
- }
- Cleanup();
- }
-
- void swap(CCoins &to) {
- std::swap(to.fCoinBase, fCoinBase);
- to.vout.swap(vout);
- std::swap(to.nHeight, nHeight);
- std::swap(to.nVersion, nVersion);
- }
-
- // equality test
- friend bool operator==(const CCoins &a, const CCoins &b) {
- // Empty CCoins objects are always equal.
- if (a.IsPruned() && b.IsPruned())
- return true;
- return a.fCoinBase == b.fCoinBase &&
- a.nHeight == b.nHeight &&
- a.nVersion == b.nVersion &&
- a.vout == b.vout;
- }
- friend bool operator!=(const CCoins &a, const CCoins &b) {
- return !(a == b);
- }
-
- void CalcMaskSize(unsigned int &nBytes, unsigned int &nNonzeroBytes) const;
-
- bool IsCoinBase() const {
- return fCoinBase;
- }
-
- unsigned int GetSerializeSize(int nType, int nVersion) const {
- unsigned int nSize = 0;
- unsigned int nMaskSize = 0, nMaskCode = 0;
- CalcMaskSize(nMaskSize, nMaskCode);
- bool fFirst = vout.size() > 0 && !vout[0].IsNull();
- bool fSecond = vout.size() > 1 && !vout[1].IsNull();
- assert(fFirst || fSecond || nMaskCode);
- unsigned int nCode = 8*(nMaskCode - (fFirst || fSecond ? 0 : 1)) + (fCoinBase ? 1 : 0) + (fFirst ? 2 : 0) + (fSecond ? 4 : 0);
- // version
- nSize += ::GetSerializeSize(VARINT(this->nVersion), nType, nVersion);
- // size of header code
- nSize += ::GetSerializeSize(VARINT(nCode), nType, nVersion);
- // spentness bitmask
- nSize += nMaskSize;
- // txouts themself
- for (unsigned int i = 0; i < vout.size(); i++)
- if (!vout[i].IsNull())
- nSize += ::GetSerializeSize(CTxOutCompressor(REF(vout[i])), nType, nVersion);
- // height
- nSize += ::GetSerializeSize(VARINT(nHeight), nType, nVersion);
- return nSize;
- }
-
- template<typename Stream>
- void Serialize(Stream &s, int nType, int nVersion) const {
- unsigned int nMaskSize = 0, nMaskCode = 0;
- CalcMaskSize(nMaskSize, nMaskCode);
- bool fFirst = vout.size() > 0 && !vout[0].IsNull();
- bool fSecond = vout.size() > 1 && !vout[1].IsNull();
- assert(fFirst || fSecond || nMaskCode);
- unsigned int nCode = 8*(nMaskCode - (fFirst || fSecond ? 0 : 1)) + (fCoinBase ? 1 : 0) + (fFirst ? 2 : 0) + (fSecond ? 4 : 0);
- // version
- ::Serialize(s, VARINT(this->nVersion), nType, nVersion);
- // header code
- ::Serialize(s, VARINT(nCode), nType, nVersion);
- // spentness bitmask
- for (unsigned int b = 0; b<nMaskSize; b++) {
- unsigned char chAvail = 0;
- for (unsigned int i = 0; i < 8 && 2+b*8+i < vout.size(); i++)
- if (!vout[2+b*8+i].IsNull())
- chAvail |= (1 << i);
- ::Serialize(s, chAvail, nType, nVersion);
- }
- // txouts themself
- for (unsigned int i = 0; i < vout.size(); i++) {
- if (!vout[i].IsNull())
- ::Serialize(s, CTxOutCompressor(REF(vout[i])), nType, nVersion);
- }
- // coinbase height
- ::Serialize(s, VARINT(nHeight), nType, nVersion);
- }
-
- template<typename Stream>
- void Unserialize(Stream &s, int nType, int nVersion) {
- unsigned int nCode = 0;
- // version
- ::Unserialize(s, VARINT(this->nVersion), nType, nVersion);
- // header code
- ::Unserialize(s, VARINT(nCode), nType, nVersion);
- fCoinBase = nCode & 1;
- std::vector<bool> vAvail(2, false);
- vAvail[0] = nCode & 2;
- vAvail[1] = nCode & 4;
- unsigned int nMaskCode = (nCode / 8) + ((nCode & 6) != 0 ? 0 : 1);
- // spentness bitmask
- while (nMaskCode > 0) {
- unsigned char chAvail = 0;
- ::Unserialize(s, chAvail, nType, nVersion);
- for (unsigned int p = 0; p < 8; p++) {
- bool f = (chAvail & (1 << p)) != 0;
- vAvail.push_back(f);
- }
- if (chAvail != 0)
- nMaskCode--;
- }
- // txouts themself
- vout.assign(vAvail.size(), CTxOut());
- for (unsigned int i = 0; i < vAvail.size(); i++) {
- if (vAvail[i])
- ::Unserialize(s, REF(CTxOutCompressor(vout[i])), nType, nVersion);
- }
- // coinbase height
- ::Unserialize(s, VARINT(nHeight), nType, nVersion);
- Cleanup();
- }
-
- // mark an outpoint spent, and construct undo information
- bool Spend(const COutPoint &out, CTxInUndo &undo);
-
- // mark a vout spent
- bool Spend(int nPos);
-
- // check whether a particular output is still available
- bool IsAvailable(unsigned int nPos) const {
- return (nPos < vout.size() && !vout[nPos].IsNull());
- }
-
- // check whether the entire CCoins is spent
- // note that only !IsPruned() CCoins can be serialized
- bool IsPruned() const {
- BOOST_FOREACH(const CTxOut &out, vout)
- if (!out.IsNull())
- return false;
- return true;
- }
-};
-
-
/** Nodes collect new transactions into a block, hash them into a hash tree,
* and scan through nonce values to make the block's hash satisfy proof-of-work
* requirements. When they solve the proof-of-work, they broadcast the block
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-07 14:29:44 +0000