move-only: Move CBlockTreeDB to node/blockstorage

The block index (CBlockTreeDB) is required to write and read blocks, so
move it to blockstorage. This allows to drop the txdb.h include from
`node/blockstorage.h`.

Can be reviewed with:

--color-moved=dimmed-zebra  --color-moved-ws=ignore-all-space

1 files changed, 0 insertions, 27 deletions

diff --git a/src/txdb.h b/src/txdb.h
index d773f01b50..c9af0a091e 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -14,23 +14,12 @@
 
 #include <cstddef>
 #include <cstdint>
-#include <functional>
 #include <memory>
 #include <optional>
-#include <string>
-#include <utility>
 #include <vector>
 
-class CBlockFileInfo;
-class CBlockIndex;
 class COutPoint;
 class uint256;
-namespace Consensus {
-struct Params;
-};
-namespace util {
-class SignalInterrupt;
-} // namespace util
 
 //! -dbcache default (MiB)
 static const int64_t nDefaultDbCache = 450;
@@ -88,20 +77,4 @@ public:
     std::optional<fs::path> StoragePath() { return m_db->StoragePath(); }
 };
 
-/** Access to the block database (blocks/index/) */
-class CBlockTreeDB : public CDBWrapper
-{
-public:
-    using CDBWrapper::CDBWrapper;
-    bool WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo);
-    bool ReadBlockFileInfo(int nFile, CBlockFileInfo &info);
-    bool ReadLastBlockFile(int &nFile);
-    bool WriteReindexing(bool fReindexing);
-    void ReadReindexing(bool &fReindexing);
-    bool WriteFlag(const std::string &name, bool fValue);
-    bool ReadFlag(const std::string &name, bool &fValue);
-    bool LoadBlockIndexGuts(const Consensus::Params& consensusParams, std::function<CBlockIndex*(const uint256&)> insertBlockIndex, const util::SignalInterrupt& interrupt)
-        EXCLUSIVE_LOCKS_REQUIRED(::cs_main);
-};
-
 #endif // BITCOIN_TXDB_H