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authorPieter Wuille <pieter.wuille@gmail.com>2017-04-25 11:29:48 -0700
committerPieter Wuille <pieter.wuille@gmail.com>2017-06-01 13:15:25 -0700
commit580b023092a28f444068b53792eb542f9d5e6892 (patch)
treea59a6d0e4636cdc442cc2bfa9c4f1a60bdacf80d /src/txdb.cpp
parent8b25d2c0ce64d7f8577a0c2e601e505c9f1140bf (diff)
[MOVEONLY] Move old CCoins class to txdb.cpp
It's only used for upgrading from the old database anymore.
Diffstat (limited to 'src/txdb.cpp')
-rw-r--r--src/txdb.cpp55
1 files changed, 55 insertions, 0 deletions
diff --git a/src/txdb.cpp b/src/txdb.cpp
index f4a6fad85b..205b1b0a88 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -253,6 +253,61 @@ bool CBlockTreeDB::LoadBlockIndexGuts(std::function<CBlockIndex*(const uint256&)
return true;
}
+namespace {
+
+//! Legacy class to deserialize pre-pertxout database entries without reindex.
+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;
+
+ //! empty constructor
+ CCoins() : fCoinBase(false), vout(0), nHeight(0) { }
+
+ template<typename Stream>
+ void Unserialize(Stream &s) {
+ unsigned int nCode = 0;
+ // version
+ int nVersionDummy;
+ ::Unserialize(s, VARINT(nVersionDummy));
+ // header code
+ ::Unserialize(s, VARINT(nCode));
+ fCoinBase = nCode & 1;
+ std::vector<bool> vAvail(2, false);
+ vAvail[0] = (nCode & 2) != 0;
+ vAvail[1] = (nCode & 4) != 0;
+ unsigned int nMaskCode = (nCode / 8) + ((nCode & 6) != 0 ? 0 : 1);
+ // spentness bitmask
+ while (nMaskCode > 0) {
+ unsigned char chAvail = 0;
+ ::Unserialize(s, chAvail);
+ 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])));
+ }
+ // coinbase height
+ ::Unserialize(s, VARINT(nHeight));
+ }
+};
+
+}
+
/** Upgrade the database from older formats.
*
* Currently implemented: from the per-tx utxo model (0.8..0.14.x) to per-txout.