512 lines
19 KiB
C++
512 lines
19 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or https://www.opensource.org/licenses/mit-license.php .
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#include "txdb.h"
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#include "chainparams.h"
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#include "hash.h"
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#include "main.h"
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#include "pow.h"
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#include "uint256.h"
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#include <stdint.h>
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#include <boost/thread.hpp>
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using namespace std;
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// NOTE: Per issue #3277, do not use the prefix 'X' or 'x' as they were
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// previously used by DB_SAPLING_ANCHOR and DB_BEST_SAPLING_ANCHOR.
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static const char DB_SPROUT_ANCHOR = 'A';
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static const char DB_SAPLING_ANCHOR = 'Z';
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static const char DB_NULLIFIER = 's';
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static const char DB_SAPLING_NULLIFIER = 'S';
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static const char DB_COINS = 'c';
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static const char DB_BLOCK_FILES = 'f';
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static const char DB_TXINDEX = 't';
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static const char DB_BLOCK_INDEX = 'b';
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static const char DB_BEST_BLOCK = 'B';
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static const char DB_BEST_SPROUT_ANCHOR = 'a';
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static const char DB_BEST_SAPLING_ANCHOR = 'z';
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static const char DB_FLAG = 'F';
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static const char DB_REINDEX_FLAG = 'R';
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static const char DB_LAST_BLOCK = 'l';
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// insightexplorer
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static const char DB_ADDRESSINDEX = 'd';
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static const char DB_ADDRESSUNSPENTINDEX = 'u';
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static const char DB_SPENTINDEX = 'p';
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static const char DB_TIMESTAMPINDEX = 'T';
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static const char DB_BLOCKHASHINDEX = 'h';
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CCoinsViewDB::CCoinsViewDB(std::string dbName, size_t nCacheSize, bool fMemory, bool fWipe) : db(GetDataDir() / dbName, nCacheSize, fMemory, fWipe) {
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}
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CCoinsViewDB::CCoinsViewDB(size_t nCacheSize, bool fMemory, bool fWipe) : db(GetDataDir() / "chainstate", nCacheSize, fMemory, fWipe)
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{
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}
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bool CCoinsViewDB::GetSproutAnchorAt(const uint256 &rt, SproutMerkleTree &tree) const {
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if (rt == SproutMerkleTree::empty_root()) {
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SproutMerkleTree new_tree;
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tree = new_tree;
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return true;
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}
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bool read = db.Read(make_pair(DB_SPROUT_ANCHOR, rt), tree);
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return read;
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}
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bool CCoinsViewDB::GetSaplingAnchorAt(const uint256 &rt, SaplingMerkleTree &tree) const {
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if (rt == SaplingMerkleTree::empty_root()) {
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SaplingMerkleTree new_tree;
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tree = new_tree;
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return true;
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}
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bool read = db.Read(make_pair(DB_SAPLING_ANCHOR, rt), tree);
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return read;
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}
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bool CCoinsViewDB::GetNullifier(const uint256 &nf, ShieldedType type) const {
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bool spent = false;
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char dbChar;
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switch (type) {
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case SPROUT:
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dbChar = DB_NULLIFIER;
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break;
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case SAPLING:
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dbChar = DB_SAPLING_NULLIFIER;
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break;
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default:
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throw runtime_error("Unknown shielded type");
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}
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return db.Read(make_pair(dbChar, nf), spent);
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}
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bool CCoinsViewDB::GetCoins(const uint256 &txid, CCoins &coins) const {
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return db.Read(make_pair(DB_COINS, txid), coins);
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}
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bool CCoinsViewDB::HaveCoins(const uint256 &txid) const {
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return db.Exists(make_pair(DB_COINS, txid));
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}
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uint256 CCoinsViewDB::GetBestBlock() const {
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uint256 hashBestChain;
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if (!db.Read(DB_BEST_BLOCK, hashBestChain))
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return uint256();
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return hashBestChain;
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}
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uint256 CCoinsViewDB::GetBestAnchor(ShieldedType type) const {
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uint256 hashBestAnchor;
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switch (type) {
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case SPROUT:
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if (!db.Read(DB_BEST_SPROUT_ANCHOR, hashBestAnchor))
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return SproutMerkleTree::empty_root();
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break;
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case SAPLING:
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if (!db.Read(DB_BEST_SAPLING_ANCHOR, hashBestAnchor))
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return SaplingMerkleTree::empty_root();
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break;
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default:
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throw runtime_error("Unknown shielded type");
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}
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return hashBestAnchor;
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}
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void BatchWriteNullifiers(CDBBatch& batch, CNullifiersMap& mapToUse, const char& dbChar)
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{
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for (CNullifiersMap::iterator it = mapToUse.begin(); it != mapToUse.end();) {
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if (it->second.flags & CNullifiersCacheEntry::DIRTY) {
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if (!it->second.entered)
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batch.Erase(make_pair(dbChar, it->first));
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else
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batch.Write(make_pair(dbChar, it->first), true);
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// TODO: changed++? ... See comment in CCoinsViewDB::BatchWrite. If this is needed we could return an int
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}
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CNullifiersMap::iterator itOld = it++;
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mapToUse.erase(itOld);
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}
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}
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template<typename Map, typename MapIterator, typename MapEntry, typename Tree>
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void BatchWriteAnchors(CDBBatch& batch, Map& mapToUse, const char& dbChar)
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{
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for (MapIterator it = mapToUse.begin(); it != mapToUse.end();) {
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if (it->second.flags & MapEntry::DIRTY) {
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if (!it->second.entered)
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batch.Erase(make_pair(dbChar, it->first));
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else {
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if (it->first != Tree::empty_root()) {
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batch.Write(make_pair(dbChar, it->first), it->second.tree);
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}
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}
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// TODO: changed++?
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}
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MapIterator itOld = it++;
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mapToUse.erase(itOld);
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}
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}
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bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins,
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const uint256 &hashBlock,
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const uint256 &hashSproutAnchor,
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const uint256 &hashSaplingAnchor,
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CAnchorsSproutMap &mapSproutAnchors,
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CAnchorsSaplingMap &mapSaplingAnchors,
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CNullifiersMap &mapSproutNullifiers,
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CNullifiersMap &mapSaplingNullifiers) {
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CDBBatch batch(db);
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size_t count = 0;
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size_t changed = 0;
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for (CCoinsMap::iterator it = mapCoins.begin(); it != mapCoins.end();) {
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if (it->second.flags & CCoinsCacheEntry::DIRTY) {
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if (it->second.coins.IsPruned())
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batch.Erase(make_pair(DB_COINS, it->first));
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else
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batch.Write(make_pair(DB_COINS, it->first), it->second.coins);
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changed++;
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}
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count++;
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CCoinsMap::iterator itOld = it++;
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mapCoins.erase(itOld);
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}
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::BatchWriteAnchors<CAnchorsSproutMap, CAnchorsSproutMap::iterator, CAnchorsSproutCacheEntry, SproutMerkleTree>(batch, mapSproutAnchors, DB_SPROUT_ANCHOR);
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::BatchWriteAnchors<CAnchorsSaplingMap, CAnchorsSaplingMap::iterator, CAnchorsSaplingCacheEntry, SaplingMerkleTree>(batch, mapSaplingAnchors, DB_SAPLING_ANCHOR);
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::BatchWriteNullifiers(batch, mapSproutNullifiers, DB_NULLIFIER);
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::BatchWriteNullifiers(batch, mapSaplingNullifiers, DB_SAPLING_NULLIFIER);
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if (!hashBlock.IsNull())
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batch.Write(DB_BEST_BLOCK, hashBlock);
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if (!hashSproutAnchor.IsNull())
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batch.Write(DB_BEST_SPROUT_ANCHOR, hashSproutAnchor);
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if (!hashSaplingAnchor.IsNull())
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batch.Write(DB_BEST_SAPLING_ANCHOR, hashSaplingAnchor);
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LogPrint("coindb", "Committing %u changed transactions (out of %u) to coin database...\n", (unsigned int)changed, (unsigned int)count);
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return db.WriteBatch(batch);
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}
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CBlockTreeDB::CBlockTreeDB(size_t nCacheSize, bool fMemory, bool fWipe) : CDBWrapper(GetDataDir() / "blocks" / "index", nCacheSize, fMemory, fWipe) {
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}
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bool CBlockTreeDB::ReadBlockFileInfo(int nFile, CBlockFileInfo &info) {
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return Read(make_pair(DB_BLOCK_FILES, nFile), info);
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}
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bool CBlockTreeDB::WriteReindexing(bool fReindexing) {
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if (fReindexing)
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return Write(DB_REINDEX_FLAG, '1');
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else
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return Erase(DB_REINDEX_FLAG);
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}
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bool CBlockTreeDB::ReadReindexing(bool &fReindexing) {
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fReindexing = Exists(DB_REINDEX_FLAG);
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return true;
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}
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bool CBlockTreeDB::ReadLastBlockFile(int &nFile) {
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return Read(DB_LAST_BLOCK, nFile);
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}
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bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
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/* It seems that there are no "const iterators" for LevelDB. Since we
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only need read operations on it, use a const-cast to get around
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that restriction. */
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boost::scoped_ptr<CDBIterator> pcursor(const_cast<CDBWrapper*>(&db)->NewIterator());
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pcursor->Seek(DB_COINS);
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CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
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stats.hashBlock = GetBestBlock();
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ss << stats.hashBlock;
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CAmount nTotalAmount = 0;
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while (pcursor->Valid()) {
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boost::this_thread::interruption_point();
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std::pair<char, uint256> key;
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CCoins coins;
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if (pcursor->GetKey(key) && key.first == DB_COINS) {
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if (pcursor->GetValue(coins)) {
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stats.nTransactions++;
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for (unsigned int i=0; i<coins.vout.size(); i++) {
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const CTxOut &out = coins.vout[i];
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if (!out.IsNull()) {
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stats.nTransactionOutputs++;
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ss << VARINT(i+1);
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ss << out;
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nTotalAmount += out.nValue;
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}
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}
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stats.nSerializedSize += 32 + pcursor->GetValueSize();
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ss << VARINT(0);
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} else {
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return error("CCoinsViewDB::GetStats() : unable to read value");
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}
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} else {
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break;
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}
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pcursor->Next();
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}
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{
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LOCK(cs_main);
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stats.nHeight = mapBlockIndex.find(stats.hashBlock)->second->nHeight;
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}
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stats.hashSerialized = ss.GetHash();
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stats.nTotalAmount = nTotalAmount;
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return true;
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}
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bool CBlockTreeDB::WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo) {
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CDBBatch batch(*this);
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for (std::vector<std::pair<int, const CBlockFileInfo*> >::const_iterator it=fileInfo.begin(); it != fileInfo.end(); it++) {
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batch.Write(make_pair(DB_BLOCK_FILES, it->first), *it->second);
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}
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batch.Write(DB_LAST_BLOCK, nLastFile);
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for (std::vector<const CBlockIndex*>::const_iterator it=blockinfo.begin(); it != blockinfo.end(); it++) {
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batch.Write(make_pair(DB_BLOCK_INDEX, (*it)->GetBlockHash()), CDiskBlockIndex(*it));
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}
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return WriteBatch(batch, true);
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}
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bool CBlockTreeDB::EraseBatchSync(const std::vector<const CBlockIndex*>& blockinfo) {
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CDBBatch batch(*this);
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for (std::vector<const CBlockIndex*>::const_iterator it=blockinfo.begin(); it != blockinfo.end(); it++) {
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batch.Erase(make_pair(DB_BLOCK_INDEX, (*it)->GetBlockHash()));
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}
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return WriteBatch(batch, true);
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}
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bool CBlockTreeDB::ReadTxIndex(const uint256 &txid, CDiskTxPos &pos) {
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return Read(make_pair(DB_TXINDEX, txid), pos);
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}
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bool CBlockTreeDB::WriteTxIndex(const std::vector<std::pair<uint256, CDiskTxPos> >&vect) {
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CDBBatch batch(*this);
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for (std::vector<std::pair<uint256,CDiskTxPos> >::const_iterator it=vect.begin(); it!=vect.end(); it++)
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batch.Write(make_pair(DB_TXINDEX, it->first), it->second);
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return WriteBatch(batch);
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}
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// START insightexplorer
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// https://github.com/bitpay/bitcoin/commit/017f548ea6d89423ef568117447e61dd5707ec42#diff-81e4f16a1b5d5b7ca25351a63d07cb80R183
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bool CBlockTreeDB::UpdateAddressUnspentIndex(const std::vector<CAddressUnspentDbEntry> &vect)
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{
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CDBBatch batch(*this);
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for (std::vector<CAddressUnspentDbEntry>::const_iterator it=vect.begin(); it!=vect.end(); it++) {
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if (it->second.IsNull()) {
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batch.Erase(make_pair(DB_ADDRESSUNSPENTINDEX, it->first));
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} else {
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batch.Write(make_pair(DB_ADDRESSUNSPENTINDEX, it->first), it->second);
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}
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}
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return WriteBatch(batch);
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}
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bool CBlockTreeDB::ReadAddressUnspentIndex(uint160 addressHash, int type, std::vector<CAddressUnspentDbEntry> &unspentOutputs)
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{
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boost::scoped_ptr<CDBIterator> pcursor(NewIterator());
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pcursor->Seek(make_pair(DB_ADDRESSUNSPENTINDEX, CAddressIndexIteratorKey(type, addressHash)));
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while (pcursor->Valid()) {
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boost::this_thread::interruption_point();
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std::pair<char,CAddressUnspentKey> key;
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if (!(pcursor->GetKey(key) && key.first == DB_ADDRESSUNSPENTINDEX && key.second.hashBytes == addressHash))
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break;
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CAddressUnspentValue nValue;
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if (!pcursor->GetValue(nValue))
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return error("failed to get address unspent value");
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unspentOutputs.push_back(make_pair(key.second, nValue));
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pcursor->Next();
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}
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return true;
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}
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bool CBlockTreeDB::WriteAddressIndex(const std::vector<CAddressIndexDbEntry> &vect) {
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CDBBatch batch(*this);
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for (std::vector<CAddressIndexDbEntry>::const_iterator it=vect.begin(); it!=vect.end(); it++)
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batch.Write(make_pair(DB_ADDRESSINDEX, it->first), it->second);
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return WriteBatch(batch);
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}
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bool CBlockTreeDB::EraseAddressIndex(const std::vector<CAddressIndexDbEntry> &vect) {
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CDBBatch batch(*this);
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for (std::vector<CAddressIndexDbEntry>::const_iterator it=vect.begin(); it!=vect.end(); it++)
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batch.Erase(make_pair(DB_ADDRESSINDEX, it->first));
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return WriteBatch(batch);
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}
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bool CBlockTreeDB::ReadAddressIndex(
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uint160 addressHash, int type,
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std::vector<CAddressIndexDbEntry> &addressIndex,
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int start, int end)
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{
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boost::scoped_ptr<CDBIterator> pcursor(NewIterator());
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if (start > 0 && end > 0) {
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pcursor->Seek(make_pair(DB_ADDRESSINDEX, CAddressIndexIteratorHeightKey(type, addressHash, start)));
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} else {
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pcursor->Seek(make_pair(DB_ADDRESSINDEX, CAddressIndexIteratorKey(type, addressHash)));
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}
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while (pcursor->Valid()) {
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boost::this_thread::interruption_point();
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std::pair<char,CAddressIndexKey> key;
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if (!(pcursor->GetKey(key) && key.first == DB_ADDRESSINDEX && key.second.hashBytes == addressHash))
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break;
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if (end > 0 && key.second.blockHeight > end)
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break;
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CAmount nValue;
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if (!pcursor->GetValue(nValue))
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return error("failed to get address index value");
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addressIndex.push_back(make_pair(key.second, nValue));
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pcursor->Next();
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}
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return true;
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}
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bool CBlockTreeDB::ReadSpentIndex(CSpentIndexKey &key, CSpentIndexValue &value) {
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return Read(make_pair(DB_SPENTINDEX, key), value);
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}
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bool CBlockTreeDB::UpdateSpentIndex(const std::vector<CSpentIndexDbEntry> &vect) {
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CDBBatch batch(*this);
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for (std::vector<CSpentIndexDbEntry>::const_iterator it=vect.begin(); it!=vect.end(); it++) {
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if (it->second.IsNull()) {
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batch.Erase(make_pair(DB_SPENTINDEX, it->first));
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} else {
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batch.Write(make_pair(DB_SPENTINDEX, it->first), it->second);
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}
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}
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return WriteBatch(batch);
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}
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bool CBlockTreeDB::WriteTimestampIndex(const CTimestampIndexKey ×tampIndex) {
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CDBBatch batch(*this);
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batch.Write(make_pair(DB_TIMESTAMPINDEX, timestampIndex), 0);
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return WriteBatch(batch);
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}
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bool CBlockTreeDB::ReadTimestampIndex(unsigned int high, unsigned int low,
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const bool fActiveOnly, std::vector<std::pair<uint256, unsigned int> > &hashes)
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{
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boost::scoped_ptr<CDBIterator> pcursor(NewIterator());
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pcursor->Seek(make_pair(DB_TIMESTAMPINDEX, CTimestampIndexIteratorKey(low)));
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while (pcursor->Valid()) {
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boost::this_thread::interruption_point();
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std::pair<char, CTimestampIndexKey> key;
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if (!(pcursor->GetKey(key) && key.first == DB_TIMESTAMPINDEX && key.second.timestamp < high)) {
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break;
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}
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if (fActiveOnly) {
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CBlockIndex* pblockindex = mapBlockIndex[key.second.blockHash];
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if (chainActive.Contains(pblockindex)) {
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hashes.push_back(std::make_pair(key.second.blockHash, key.second.timestamp));
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}
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} else {
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hashes.push_back(std::make_pair(key.second.blockHash, key.second.timestamp));
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}
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pcursor->Next();
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}
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return true;
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}
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bool CBlockTreeDB::WriteTimestampBlockIndex(const CTimestampBlockIndexKey &blockhashIndex,
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const CTimestampBlockIndexValue &logicalts)
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{
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CDBBatch batch(*this);
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batch.Write(make_pair(DB_BLOCKHASHINDEX, blockhashIndex), logicalts);
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return WriteBatch(batch);
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}
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bool CBlockTreeDB::ReadTimestampBlockIndex(const uint256 &hash, unsigned int <imestamp)
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{
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CTimestampBlockIndexValue(lts);
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if (!Read(std::make_pair(DB_BLOCKHASHINDEX, hash), lts))
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return false;
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ltimestamp = lts.ltimestamp;
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return true;
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}
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// END insightexplorer
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bool CBlockTreeDB::WriteFlag(const std::string &name, bool fValue) {
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return Write(std::make_pair(DB_FLAG, name), fValue ? '1' : '0');
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}
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bool CBlockTreeDB::ReadFlag(const std::string &name, bool &fValue) {
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char ch;
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if (!Read(std::make_pair(DB_FLAG, name), ch))
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return false;
|
|
fValue = ch == '1';
|
|
return true;
|
|
}
|
|
|
|
bool CBlockTreeDB::LoadBlockIndexGuts(boost::function<CBlockIndex*(const uint256&)> insertBlockIndex)
|
|
{
|
|
boost::scoped_ptr<CDBIterator> pcursor(NewIterator());
|
|
|
|
pcursor->Seek(make_pair(DB_BLOCK_INDEX, uint256()));
|
|
|
|
// Load mapBlockIndex
|
|
while (pcursor->Valid()) {
|
|
boost::this_thread::interruption_point();
|
|
std::pair<char, uint256> key;
|
|
if (pcursor->GetKey(key) && key.first == DB_BLOCK_INDEX) {
|
|
CDiskBlockIndex diskindex;
|
|
if (pcursor->GetValue(diskindex)) {
|
|
// Construct block index object
|
|
CBlockIndex* pindexNew = insertBlockIndex(diskindex.GetBlockHash());
|
|
pindexNew->pprev = insertBlockIndex(diskindex.hashPrev);
|
|
pindexNew->nHeight = diskindex.nHeight;
|
|
pindexNew->nFile = diskindex.nFile;
|
|
pindexNew->nDataPos = diskindex.nDataPos;
|
|
pindexNew->nUndoPos = diskindex.nUndoPos;
|
|
pindexNew->hashSproutAnchor = diskindex.hashSproutAnchor;
|
|
pindexNew->nVersion = diskindex.nVersion;
|
|
pindexNew->hashMerkleRoot = diskindex.hashMerkleRoot;
|
|
pindexNew->hashFinalSaplingRoot = diskindex.hashFinalSaplingRoot;
|
|
pindexNew->nTime = diskindex.nTime;
|
|
pindexNew->nBits = diskindex.nBits;
|
|
pindexNew->nNonce = diskindex.nNonce;
|
|
pindexNew->nSolution = diskindex.nSolution;
|
|
pindexNew->nStatus = diskindex.nStatus;
|
|
pindexNew->nCachedBranchId = diskindex.nCachedBranchId;
|
|
pindexNew->nTx = diskindex.nTx;
|
|
pindexNew->nSproutValue = diskindex.nSproutValue;
|
|
pindexNew->nSaplingValue = diskindex.nSaplingValue;
|
|
|
|
// Consistency checks
|
|
auto header = pindexNew->GetBlockHeader();
|
|
if (header.GetHash() != pindexNew->GetBlockHash())
|
|
return error("LoadBlockIndex(): block header inconsistency detected: on-disk = %s, in-memory = %s",
|
|
diskindex.ToString(), pindexNew->ToString());
|
|
if (!CheckProofOfWork(pindexNew->GetBlockHash(), pindexNew->nBits, Params().GetConsensus()))
|
|
return error("LoadBlockIndex(): CheckProofOfWork failed: %s", pindexNew->ToString());
|
|
|
|
pcursor->Next();
|
|
} else {
|
|
return error("LoadBlockIndex() : failed to read value");
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|