M1.3: RocksDB chain database backend behind BUILD_ROCKSDB flag

Adds CRocksTxDB, the second concrete backend for CTxDBBase. Mirrors
CTxDB (LevelDB) one-for-one with rocksdb:: substitutions: same key
serialization (inherited from CTxDBBase), same active-batch semantics,
same LoadBlockIndex flow including the dbformat v3 chain-trust upgrade.

Build flag BUILD_ROCKSDB defaults OFF, so the existing LevelDB build is
untouched — RocksDB headers are only included when the flag is on, and
the entire .cpp file is wrapped in #ifdef BUILD_ROCKSDB.

Build system:
  * Top-level option(BUILD_ROCKSDB ... OFF)
  * find_package(RocksDB CONFIG) with pkg-config fallback
  * Conditional list(APPEND CORE_SOURCES txdb-rocksdb.cpp)
  * Conditional target_link_libraries(... RocksDB::rocksdb)

Data layout: RocksDB lives under <datadir>/rocksdb/, separate from
<datadir>/txleveldb/, so both backends can coexist for migration and
parity testing.

Acknowledged debt: LoadBlockIndex is duplicated between CTxDB and
CRocksTxDB. Will be extracted into CTxDBBase once the iterator and
batch abstractions are proven across both backends (M1.4 or later).

Validated: default-OFF build still compiles cleanly. The BUILD_ROCKSDB=ON
path is NOT compile-validated yet — RocksDB isn't installed on this dev
machine. The code is straight namespace substitution from the working
LevelDB backend; whoever first enables the flag should report any
header/API drift between rocksdb releases.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-04-25 03:36:20 -07:00
parent f13e512712
commit 569ca99e66
4 changed files with 789 additions and 0 deletions
+14
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@@ -52,6 +52,7 @@ option(USE_QRCODE "Enable QR code generation via libqrencode" OFF
option(USE_DBUS "Enable D-Bus notifications (Linux only)" ON)
option(USE_ZMQ "Enable ZMQ publisher support" OFF)
option(USE_TOR_EMBEDDED "Enable embedded Tor library linking" OFF)
option(BUILD_ROCKSDB "Build with RocksDB chain database backend" OFF)
option(USE_O3 "Use -O3 optimization instead of -O2" OFF)
option(ENABLE_PIE "Build position-independent executables" OFF)
option(ENABLE_STATIC "Prefer static linking (Linux release builds)" OFF)
@@ -95,6 +96,18 @@ if(USE_ZMQ)
pkg_check_modules(ZMQ REQUIRED IMPORTED_TARGET libzmq)
endif()
if(BUILD_ROCKSDB)
# RocksDB ships a CMake config package on most distros (rocksdbConfig.cmake).
# On MSYS2/Homebrew/vcpkg the imported target is RocksDB::rocksdb.
find_package(RocksDB CONFIG)
if(NOT RocksDB_FOUND)
# Fall back to pkg-config for systems without the CMake config (older
# Linux distros). Builds an IMPORTED target named PkgConfig::RocksDB.
find_package(PkgConfig REQUIRED)
pkg_check_modules(RocksDB REQUIRED IMPORTED_TARGET rocksdb)
endif()
endif()
if(BUILD_QT)
find_package(Qt5 5.9 REQUIRED COMPONENTS Core Gui Widgets)
find_package(Qt5 COMPONENTS LinguistTools QUIET)
@@ -130,6 +143,7 @@ message(STATUS " QR code: ${USE_QRCODE}")
message(STATUS " D-Bus: ${USE_DBUS}")
message(STATUS " ZMQ: ${USE_ZMQ}")
message(STATUS " Embedded Tor: ${USE_TOR_EMBEDDED}")
message(STATUS " RocksDB backend: ${BUILD_ROCKSDB}")
message(STATUS " Static linking: ${ENABLE_STATIC}")
message(STATUS " ccache: ${CCACHE_PROGRAM}")
message(STATUS " Unity build: ${ENABLE_UNITY_BUILD}")
+15
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@@ -98,6 +98,11 @@ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM")
list(APPEND CORE_SOURCES scrypt-arm.S)
endif()
# Optional: RocksDB chain database backend
if(BUILD_ROCKSDB)
list(APPEND CORE_SOURCES txdb-rocksdb.cpp)
endif()
add_library(triangles_common OBJECT ${CORE_SOURCES})
target_include_directories(triangles_common PUBLIC
@@ -145,6 +150,16 @@ if(USE_ZMQ)
target_link_libraries(triangles_common PUBLIC PkgConfig::ZMQ)
endif()
# Optional: RocksDB
if(BUILD_ROCKSDB)
target_compile_definitions(triangles_common PUBLIC BUILD_ROCKSDB)
if(TARGET RocksDB::rocksdb)
target_link_libraries(triangles_common PUBLIC RocksDB::rocksdb)
elseif(TARGET PkgConfig::RocksDB)
target_link_libraries(triangles_common PUBLIC PkgConfig::RocksDB)
endif()
endif()
# Optional: Embedded Tor
if(USE_TOR_EMBEDDED)
if(TOR_SOURCE_ROOT STREQUAL "")
+703
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@@ -0,0 +1,703 @@
// Copyright (c) 2026 The Triangles developers.
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifdef BUILD_ROCKSDB
#include "txdb-rocksdb.h"
#include <map>
#include <boost/version.hpp>
#include <boost/filesystem.hpp>
#include <boost/filesystem/fstream.hpp>
#include <rocksdb/cache.h>
#include <rocksdb/filter_policy.h>
#include <rocksdb/iterator.h>
#include <rocksdb/slice.h>
#include <rocksdb/table.h>
#include <rocksdb/write_batch.h>
#include "kernel.h"
#include "checkpoints.h"
#include "txdb.h"
#include "util.h"
#include "ui_interface.h"
#include "addressindex.h"
#include "main.h"
using namespace std;
using namespace boost;
namespace fs = boost::filesystem;
// Global pointer for the RocksDB instance, shared across CRocksTxDB instances
// the same way the LevelDB backend shares its txdb singleton.
static rocksdb::DB* g_rocksdb = nullptr;
static rocksdb::Options GetRocksOptions()
{
rocksdb::Options opts;
opts.create_if_missing = false;
opts.compression = rocksdb::kSnappyCompression;
opts.max_open_files = 1000;
opts.write_buffer_size = 64 * 1048576;
opts.IncreaseParallelism(); // Multi-threaded compaction.
opts.OptimizeLevelStyleCompaction(); // Sensible defaults for a LSM workload.
rocksdb::BlockBasedTableOptions table_opts;
int nCacheSizeMB = GetArg("-dbcache", 2048);
table_opts.block_cache = rocksdb::NewLRUCache(static_cast<size_t>(nCacheSizeMB) * 1048576);
table_opts.filter_policy.reset(rocksdb::NewBloomFilterPolicy(10, false));
opts.table_factory.reset(rocksdb::NewBlockBasedTableFactory(table_opts));
return opts;
}
static void open_rocksdb(rocksdb::Options& options, bool fRemoveOld = false)
{
fs::path directory = GetDataDir() / "rocksdb";
if (fRemoveOld) {
fs::remove_all(directory);
}
fs::create_directory(directory);
printf("Opening RocksDB in %s\n", directory.string().c_str());
rocksdb::Status status = rocksdb::DB::Open(options, directory.string(), &g_rocksdb);
if (!status.ok()) {
throw runtime_error(strprintf("open_rocksdb(): error opening database: %s",
status.ToString().c_str()));
}
}
CRocksTxDB::CRocksTxDB(const char* pszMode)
: pdb(nullptr), activeBatch(nullptr), nVersion(0)
{
assert(pszMode);
fReadOnly = (!strchr(pszMode, '+') && !strchr(pszMode, 'w'));
if (g_rocksdb) {
pdb = g_rocksdb;
return;
}
bool fCreate = strchr(pszMode, 'c');
options = GetRocksOptions();
options.create_if_missing = fCreate;
open_rocksdb(options);
pdb = g_rocksdb;
if (Exists(string("version")))
{
ReadVersion(nVersion);
printf("RocksDB transaction index version is %d\n", nVersion);
if (nVersion < DATABASE_VERSION)
{
printf("Required index version is %d, removing old RocksDB database\n",
DATABASE_VERSION);
delete g_rocksdb;
g_rocksdb = pdb = nullptr;
delete activeBatch;
activeBatch = nullptr;
open_rocksdb(options, true);
pdb = g_rocksdb;
bool fTmp = fReadOnly;
fReadOnly = false;
WriteVersion(DATABASE_VERSION);
fReadOnly = fTmp;
}
}
else if (fCreate)
{
bool fTmp = fReadOnly;
fReadOnly = false;
WriteVersion(DATABASE_VERSION);
fReadOnly = fTmp;
}
printf("Opened RocksDB successfully\n");
}
CRocksTxDB::~CRocksTxDB()
{
delete activeBatch;
}
void CRocksTxDB::Close()
{
delete g_rocksdb;
g_rocksdb = pdb = nullptr;
delete activeBatch;
activeBatch = nullptr;
}
bool CRocksTxDB::TxnBegin()
{
if (activeBatch)
return true;
activeBatch = new rocksdb::WriteBatch();
return true;
}
bool CRocksTxDB::TxnCommit()
{
assert(activeBatch);
rocksdb::Status status = pdb->Write(rocksdb::WriteOptions(), activeBatch);
delete activeBatch;
activeBatch = nullptr;
if (!status.ok()) {
printf("ERROR: RocksDB batch commit failure: %s\n", status.ToString().c_str());
printf("ERROR: This may indicate disk full, corruption, or permissions issue.\n");
printf("ERROR: Chain state may be inconsistent - immediate investigation required!\n");
return false;
}
return true;
}
bool CRocksTxDB::TxnAbort()
{
delete activeBatch;
activeBatch = nullptr;
return true;
}
namespace {
// rocksdb::WriteBatch::Handler used to scan the active batch for a pending
// write/delete on a given key, the same way the LevelDB backend does.
class CRocksBatchScanner : public rocksdb::WriteBatch::Handler {
public:
std::string needle;
bool* deleted = nullptr;
std::string* foundValue = nullptr;
bool foundEntry = false;
CRocksBatchScanner() = default;
void Put(const rocksdb::Slice& key, const rocksdb::Slice& value) override {
if (key.ToString() == needle) {
foundEntry = true;
*deleted = false;
*foundValue = value.ToString();
}
}
void Delete(const rocksdb::Slice& key) override {
if (key.ToString() == needle) {
foundEntry = true;
*deleted = true;
}
}
};
class CRocksDBIterator final : public CTxDBIteratorBase {
public:
explicit CRocksDBIterator(rocksdb::Iterator* pit) : pit(pit) {}
~CRocksDBIterator() override { delete pit; }
void Seek(const std::string& key) override { pit->Seek(key); }
bool Valid() const override { return pit->Valid(); }
void Next() override { pit->Next(); }
std::string KeyStr() const override { return pit->key().ToString(); }
std::string ValueStr() const override { return pit->value().ToString(); }
private:
rocksdb::Iterator* pit;
};
} // anonymous namespace
bool CRocksTxDB::ScanBatch(const std::string& key, std::string* value, bool* deleted) const
{
assert(activeBatch);
*deleted = false;
CRocksBatchScanner scanner;
scanner.needle = key;
scanner.deleted = deleted;
scanner.foundValue = value;
rocksdb::Status status = activeBatch->Iterate(&scanner);
if (!status.ok()) {
throw runtime_error(status.ToString());
}
return scanner.foundEntry;
}
bool CRocksTxDB::ReadRaw(const std::string& key, std::string& value) const
{
bool readFromDb = true;
if (activeBatch) {
bool deleted = false;
readFromDb = ScanBatch(key, &value, &deleted) == false;
if (deleted)
return false;
}
if (readFromDb) {
rocksdb::Status status = pdb->Get(rocksdb::ReadOptions(), key, &value);
if (!status.ok()) {
if (status.IsNotFound())
return false;
printf("RocksDB read failure: %s\n", status.ToString().c_str());
return false;
}
}
return true;
}
bool CRocksTxDB::WriteRaw(const std::string& key, const std::string& value)
{
if (activeBatch) {
activeBatch->Put(key, value);
return true;
}
rocksdb::Status status = pdb->Put(rocksdb::WriteOptions(), key, value);
if (!status.ok()) {
printf("RocksDB write failure: %s\n", status.ToString().c_str());
return false;
}
return true;
}
bool CRocksTxDB::EraseRaw(const std::string& key)
{
if (!pdb)
return false;
if (activeBatch) {
activeBatch->Delete(key);
return true;
}
rocksdb::Status status = pdb->Delete(rocksdb::WriteOptions(), key);
return (status.ok() || status.IsNotFound());
}
bool CRocksTxDB::ExistsRaw(const std::string& key) const
{
std::string unused;
if (activeBatch) {
bool deleted = false;
if (ScanBatch(key, &unused, &deleted) && !deleted)
return true;
}
rocksdb::Status status = pdb->Get(rocksdb::ReadOptions(), key, &unused);
return status.IsNotFound() == false;
}
std::unique_ptr<CTxDBIteratorBase> CRocksTxDB::NewIterator() const
{
return std::unique_ptr<CTxDBIteratorBase>(
new CRocksDBIterator(pdb->NewIterator(rocksdb::ReadOptions())));
}
// ─── LoadBlockIndex ─────────────────────────────────────────────────────────
// Mirrors CTxDB::LoadBlockIndex with rocksdb:: substitutions. The dbformat
// upgrade path is preserved verbatim because a freshly-imported RocksDB may
// have been migrated from a v1 LevelDB and still need the chain-trust pass.
//
// This duplication is acknowledged debt — CTxDBBase will absorb LoadBlockIndex
// into the base class in a later phase once the iterator/batch abstractions
// have proven stable across both backends.
// ────────────────────────────────────────────────────────────────────────────
static CBlockIndex *InsertBlockIndexRocks(uint256 hash)
{
if (hash == 0)
return nullptr;
auto mi = mapBlockIndex.find(hash);
if (mi != mapBlockIndex.end())
return mi->second;
CBlockIndex* pindexNew = new CBlockIndex();
if (!pindexNew)
throw runtime_error("LoadBlockIndex(): new CBlockIndex failed");
mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
pindexNew->phashBlock = &mi->first;
return pindexNew;
}
bool CRocksTxDB::LoadBlockIndex()
{
if (mapBlockIndex.size() > 0) {
return true;
}
int nDbFormat = 1;
ReadDbFormat(nDbFormat);
CDiskBlockIndex::fSerializeChainTrust = (nDbFormat >= 2);
if (CDiskBlockIndex::fSerializeChainTrust)
printf("LoadBlockIndex(): RocksDB format v%d - nChainTrust persisted\n", nDbFormat);
else
printf("LoadBlockIndex(): RocksDB format v%d - will recalculate nChainTrust\n", nDbFormat);
int64_t nPhaseStart = GetTimeMillis();
int64_t nTotalStart = nPhaseStart;
rocksdb::Iterator* iterator = pdb->NewIterator(rocksdb::ReadOptions());
CDataStream ssStartKey(SER_DISK, CLIENT_VERSION);
ssStartKey << make_pair(string("blockindex"), uint256(0));
iterator->Seek(ssStartKey.str());
int nBlocksLoaded = 0;
while (iterator->Valid())
{
if (++nBlocksLoaded % 100000 == 0)
{
std::string strMsg = strprintf(_("Loading block index... (%d blocks)"), nBlocksLoaded);
uiInterface.InitMessage(strMsg);
}
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
ssKey.write(iterator->key().data(), iterator->key().size());
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
ssValue.write(iterator->value().data(), iterator->value().size());
string strType;
ssKey >> strType;
if (fRequestShutdown || strType != "blockindex")
break;
CDiskBlockIndex diskindex;
ssValue >> diskindex;
uint256 blockHash = diskindex.GetBlockHash();
CBlockIndex* pindexNew = InsertBlockIndexRocks(blockHash);
pindexNew->pprev = InsertBlockIndexRocks(diskindex.hashPrev);
pindexNew->pnext = InsertBlockIndexRocks(diskindex.hashNext);
pindexNew->nFile = diskindex.nFile;
pindexNew->nBlockPos = diskindex.nBlockPos;
pindexNew->nHeight = diskindex.nHeight;
pindexNew->nMint = diskindex.nMint;
pindexNew->nMoneySupply = diskindex.nMoneySupply;
pindexNew->nFlags = diskindex.nFlags;
pindexNew->nStakeModifier = diskindex.nStakeModifier;
pindexNew->prevoutStake = diskindex.prevoutStake;
pindexNew->nStakeTime = diskindex.nStakeTime;
pindexNew->hashProofOfStake = diskindex.hashProofOfStake;
pindexNew->nVersion = diskindex.nVersion;
pindexNew->hashMerkleRoot = diskindex.hashMerkleRoot;
pindexNew->nTime = diskindex.nTime;
pindexNew->nBits = diskindex.nBits;
pindexNew->nNonce = diskindex.nNonce;
pindexNew->nChainTrust = diskindex.nChainTrust;
if (pindexGenesisBlock == nullptr && blockHash == (!fTestNet ? hashGenesisBlockOfficial : hashGenesisBlockTestNet))
pindexGenesisBlock = pindexNew;
if (!pindexNew->CheckIndex()) {
delete iterator;
return error("LoadBlockIndex(): CheckIndex failed at %d", pindexNew->nHeight);
}
iterator->Next();
}
delete iterator;
printf("STARTUP-PERF: block_index_deserialize %" PRId64 "ms blocks=%d\n",
GetTimeMillis() - nPhaseStart, nBlocksLoaded);
if (fRequestShutdown)
return true;
nPhaseStart = GetTimeMillis();
bool fNeedChainTrustRecalc = !CDiskBlockIndex::fSerializeChainTrust;
if (fNeedChainTrustRecalc)
{
uiInterface.InitMessage(_("Calculating chain trust (one-time upgrade)..."));
vector<pair<int, CBlockIndex*> > vSortedByHeight;
vSortedByHeight.reserve(mapBlockIndex.size());
for (const auto& item : mapBlockIndex)
vSortedByHeight.push_back(make_pair(item.second->nHeight, item.second));
sort(vSortedByHeight.begin(), vSortedByHeight.end());
int nLastCheckpointHeight = Checkpoints::GetTotalBlocksEstimate();
int nProgressInterval = std::max((int)vSortedByHeight.size() / 20, 1);
int nCount = 0;
for (const auto& item : vSortedByHeight)
{
CBlockIndex* pindex = item.second;
pindex->nChainTrust = (pindex->pprev ? pindex->pprev->nChainTrust : 0)
+ pindex->GetBlockTrust();
if (pindex->nHeight >= nLastCheckpointHeight)
{
pindex->nStakeModifierChecksum = GetStakeModifierChecksum(pindex);
if (!CheckStakeModifierCheckpoints(pindex->nHeight, pindex->nStakeModifierChecksum))
return error("LoadBlockIndex(): Failed stake modifier checkpoint h=%d, mod=0x%016"PRIx64,
pindex->nHeight, pindex->nStakeModifier);
}
if (++nCount % nProgressInterval == 0)
{
std::string strMsg = strprintf(_("Calculating chain trust... (%d%%)"),
nCount * 100 / vSortedByHeight.size());
uiInterface.InitMessage(strMsg);
}
}
printf("LoadBlockIndex(): upgrading RocksDB to format v3...\n");
uiInterface.InitMessage(_("Upgrading block index..."));
CDiskBlockIndex::fSerializeChainTrust = true;
rocksdb::WriteBatch batch;
nCount = 0;
for (const auto& item : vSortedByHeight)
{
CBlockIndex* pindex = item.second;
CDiskBlockIndex diskindex(pindex);
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
ssKey << make_pair(string("blockindex"), *pindex->phashBlock);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
ssValue << diskindex;
batch.Put(ssKey.str(), ssValue.str());
if (++nCount % 100000 == 0)
{
pdb->Write(rocksdb::WriteOptions(), &batch);
batch.Clear();
printf("LoadBlockIndex(): upgraded %d / %d entries\n",
nCount, (int)vSortedByHeight.size());
}
}
CDataStream ssFmtKey(SER_DISK, CLIENT_VERSION);
ssFmtKey << string("dbformat");
CDataStream ssFmtValue(SER_DISK, CLIENT_VERSION);
ssFmtValue << (int)3;
batch.Put(ssFmtKey.str(), ssFmtValue.str());
rocksdb::Status status = pdb->Write(rocksdb::WriteOptions(), &batch);
if (!status.ok())
return error("LoadBlockIndex(): failed to write upgraded block index: %s",
status.ToString().c_str());
printf("LoadBlockIndex(): RocksDB upgraded to format v3 (%d entries)\n", nCount);
}
else
{
int nLastCheckpointHeight = Checkpoints::GetTotalBlocksEstimate();
bool fNeedModifierCheck = false;
for (const auto& item : mapBlockIndex)
{
if (item.second->nHeight >= nLastCheckpointHeight)
{
fNeedModifierCheck = true;
break;
}
}
if (fNeedModifierCheck)
{
vector<pair<int, CBlockIndex*> > vAboveCheckpoint;
for (const auto& item : mapBlockIndex)
if (item.second->nHeight >= nLastCheckpointHeight)
vAboveCheckpoint.push_back(make_pair(item.second->nHeight, item.second));
sort(vAboveCheckpoint.begin(), vAboveCheckpoint.end());
for (const auto& item : vAboveCheckpoint)
{
CBlockIndex* pindex = item.second;
pindex->nStakeModifierChecksum = GetStakeModifierChecksum(pindex);
if (!CheckStakeModifierCheckpoints(pindex->nHeight, pindex->nStakeModifierChecksum))
return error("LoadBlockIndex(): Failed stake modifier checkpoint h=%d, mod=0x%016"PRIx64,
pindex->nHeight, pindex->nStakeModifier);
}
}
}
printf("STARTUP-PERF: chain_trust_and_modifiers %" PRId64 "ms\n",
GetTimeMillis() - nPhaseStart);
if (nDbFormat < 3)
{
WriteDbFormat(3);
printf("LoadBlockIndex(): bumped RocksDB dbformat to v3\n");
}
nPhaseStart = GetTimeMillis();
if (!ReadHashBestChain(hashBestChain))
{
if (pindexGenesisBlock == nullptr)
return true;
return error("LoadBlockIndex(): hashBestChain not loaded");
}
if (!mapBlockIndex.count(hashBestChain))
return error("LoadBlockIndex(): hashBestChain not found in the block index");
pindexBest = mapBlockIndex[hashBestChain];
nBestHeight = pindexBest->nHeight;
nBestChainTrust = pindexBest->nChainTrust;
printf("STARTUP-PERF: best_chain %" PRId64 "ms\n", GetTimeMillis() - nPhaseStart);
nPhaseStart = GetTimeMillis();
{
int nStakeSeenDepth = 500;
CBlockIndex* pindex = pindexBest;
int nLoaded = 0;
while (pindex && nLoaded < nStakeSeenDepth)
{
if (pindex->IsProofOfStake())
setStakeSeen.insert(make_pair(pindex->prevoutStake, pindex->nStakeTime));
pindex = pindex->pprev;
nLoaded++;
}
printf("LoadBlockIndex(): populated setStakeSeen with %d entries (last %d blocks)\n",
(int)setStakeSeen.size(), nLoaded);
}
printf("STARTUP-PERF: stake_seen %" PRId64 "ms\n", GetTimeMillis() - nPhaseStart);
printf("LoadBlockIndex(): hashBestChain=%s height=%d trust=%s date=%s\n",
hashBestChain.ToString().substr(0,20).c_str(), nBestHeight,
CBigNum(nBestChainTrust).ToString().c_str(),
DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str());
{
CBlockIndex* pindexBetter = nullptr;
for (const auto& item : mapBlockIndex)
{
CBlockIndex* pindex = item.second;
if (pindex == pindexBest)
continue;
if (pindex->nChainTrust > nBestChainTrust)
{
pindexBetter = pindex;
break;
}
if (pindex->nChainTrust == nBestChainTrust &&
pindex->GetBlockHash() < pindexBest->GetBlockHash())
{
if (!pindexBetter || pindex->GetBlockHash() < pindexBetter->GetBlockHash())
pindexBetter = pindex;
}
}
if (pindexBetter)
{
printf("LoadBlockIndex(): better chain tip %s at %d (trust %s vs %s)\n",
pindexBetter->GetBlockHash().ToString().substr(0,20).c_str(),
pindexBetter->nHeight,
CBigNum(pindexBetter->nChainTrust).ToString().c_str(),
CBigNum(nBestChainTrust).ToString().c_str());
CBlock block;
if (block.ReadFromDisk(pindexBetter))
{
CRocksTxDB txdb2;
if (block.SetBestChain(txdb2, pindexBetter))
{
hashBestChain = pindexBetter->GetBlockHash();
pindexBest = pindexBetter;
nBestHeight = pindexBetter->nHeight;
nBestChainTrust = pindexBetter->nChainTrust;
printf("LoadBlockIndex(): switched to better chain tip\n");
}
}
}
}
if (!ReadSyncCheckpoint(Checkpoints::hashSyncCheckpoint))
printf("LoadBlockIndex(): no sync checkpoint in DB, using default\n");
else
printf("LoadBlockIndex(): synchronized checkpoint %s\n",
Checkpoints::hashSyncCheckpoint.ToString().c_str());
if (!mapBlockIndex.count(Checkpoints::hashSyncCheckpoint))
{
printf("LoadBlockIndex(): sync checkpoint not in index, resetting to genesis\n");
Checkpoints::hashSyncCheckpoint = (!fTestNet ? hashGenesisBlockOfficial
: hashGenesisBlockTestNet);
}
CBigNum bnBestInvalidTrust;
ReadBestInvalidTrust(bnBestInvalidTrust);
nBestInvalidTrust = bnBestInvalidTrust.getuint256();
nPhaseStart = GetTimeMillis();
int nCheckLevel = GetArg("-checklevel", 1);
int nCheckDepth = GetArg("-checkblocks", 50);
if (nCheckDepth == 0)
nCheckDepth = 1000000000;
if (nCheckDepth > nBestHeight)
nCheckDepth = nBestHeight;
printf("Verifying last %i blocks at level %i\n", nCheckDepth, nCheckLevel);
CBlockIndex* pindexFork = nullptr;
map<pair<unsigned int, unsigned int>, CBlockIndex*> mapBlockPos;
for (CBlockIndex* pindex = pindexBest; pindex && pindex->pprev; pindex = pindex->pprev)
{
if (fRequestShutdown || pindex->nHeight < nBestHeight - nCheckDepth)
break;
CBlock block;
if (!block.ReadFromDisk(pindex))
return error("LoadBlockIndex(): block.ReadFromDisk failed");
if (nCheckLevel > 0 && !block.CheckBlock(true, true, (nCheckLevel > 6)))
{
printf("LoadBlockIndex(): bad block at %d, hash=%s\n",
pindex->nHeight, pindex->GetBlockHash().ToString().c_str());
pindexFork = pindex->pprev;
}
if (nCheckLevel > 1)
{
pair<unsigned int, unsigned int> pos = make_pair(pindex->nFile, pindex->nBlockPos);
mapBlockPos[pos] = pindex;
for (const CTransaction &tx : block.vtx)
{
uint256 hashTx = tx.GetHash();
CTxIndex txindex;
if (ReadTxIndex(hashTx, txindex))
{
if (nCheckLevel > 2 || pindex->nFile != txindex.pos.nFile
|| pindex->nBlockPos != txindex.pos.nBlockPos)
{
CTransaction txFound;
if (!txFound.ReadFromDisk(txindex.pos))
{
printf("LoadBlockIndex(): cannot read mislocated transaction %s\n",
hashTx.ToString().c_str());
pindexFork = pindex->pprev;
}
else if (txFound.GetHash() != hashTx)
{
printf("LoadBlockIndex(): invalid tx position for %s\n",
hashTx.ToString().c_str());
pindexFork = pindex->pprev;
}
}
if (nCheckLevel > 3 && !tx.IsCoinBase())
{
for (const CTxIn &txin : tx.vin)
{
if (HaveUtxo(txin.prevout.hash, txin.prevout.n))
{
printf("LoadBlockIndex(): spent input still in UTXO set: %s:%i in %s\n",
txin.prevout.hash.ToString().c_str(), txin.prevout.n,
hashTx.ToString().c_str());
pindexFork = pindex->pprev;
}
}
}
}
}
}
}
if (pindexFork && !fRequestShutdown)
{
printf("LoadBlockIndex(): moving best chain pointer back to block %d\n",
pindexFork->nHeight);
CBlock block;
if (!block.ReadFromDisk(pindexFork))
return error("LoadBlockIndex(): block.ReadFromDisk failed");
CRocksTxDB txdb;
block.SetBestChain(txdb, pindexFork);
}
printf("STARTUP-PERF: verify_blocks %" PRId64 "ms depth=%d level=%d\n",
GetTimeMillis() - nPhaseStart, nCheckDepth, nCheckLevel);
printf("STARTUP-PERF: load_block_index_total %" PRId64 "ms\n",
GetTimeMillis() - nTotalStart);
return true;
}
#endif // BUILD_ROCKSDB
+57
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@@ -0,0 +1,57 @@
// Copyright (c) 2026 The Triangles developers.
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef TRIANGLES_TXDB_ROCKSDB_H
#define TRIANGLES_TXDB_ROCKSDB_H
#ifdef BUILD_ROCKSDB
#include "txdb-base.h"
#include <rocksdb/db.h>
#include <rocksdb/options.h>
#include <rocksdb/write_batch.h>
// RocksDB backend for the chain database.
//
// Mirrors CTxDB (LevelDB) for byte-level compatibility. CTxDBBase owns all
// key serialization, so keys produced by this backend are bit-identical to
// the LevelDB backend. That property is what lets the M1.4 dual-backend
// parity harness verify equivalence.
//
// Data lives under <datadir>/rocksdb/, separate from <datadir>/txleveldb/,
// so both backends can coexist for migration and side-by-side testing.
class CRocksTxDB final : public CTxDBBase
{
public:
CRocksTxDB(const char* pszMode = "r+");
~CRocksTxDB() override;
void Close() override;
bool TxnBegin() override;
bool TxnCommit() override;
bool TxnAbort() override;
bool LoadBlockIndex() override;
protected:
bool ReadRaw(const std::string& key, std::string& value) const override;
bool WriteRaw(const std::string& key, const std::string& value) override;
bool EraseRaw(const std::string& key) override;
bool ExistsRaw(const std::string& key) const override;
std::unique_ptr<CTxDBIteratorBase> NewIterator() const override;
private:
rocksdb::DB* pdb; // Points to the global instance.
rocksdb::WriteBatch* activeBatch; // When non-NULL, writes/deletes go here.
rocksdb::Options options;
int nVersion;
bool ScanBatch(const std::string& key, std::string* value, bool* deleted) const;
};
#endif // BUILD_ROCKSDB
#endif // TRIANGLES_TXDB_ROCKSDB_H