1 files changed, 81 insertions, 0 deletions
diff --git a/src/node/blockstorage.h b/src/node/blockstorage.h
new file mode 100644
index 0000000000..faf99dea81
--- /dev/null
+++ b/src/node/blockstorage.h
@@ -0,0 +1,81 @@
+// Copyright (c) 2011-2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_NODE_BLOCKSTORAGE_H
+#define BITCOIN_NODE_BLOCKSTORAGE_H
+
+#include <cstdint>
+#include <vector>
+
+#include <fs.h>
+#include <protocol.h> // For CMessageHeader::MessageStartChars
+
+class ArgsManager;
+class BlockValidationState;
+class CBlock;
+class CBlockFileInfo;
+class CBlockIndex;
+class CBlockUndo;
+class CChain;
+class CChainParams;
+class ChainstateManager;
+struct FlatFilePos;
+namespace Consensus {
+struct Params;
+}
+
+static constexpr bool DEFAULT_STOPAFTERBLOCKIMPORT{false};
+
+/** The pre-allocation chunk size for blk?????.dat files (since 0.8) */
+static const unsigned int BLOCKFILE_CHUNK_SIZE = 0x1000000; // 16 MiB
+/** The pre-allocation chunk size for rev?????.dat files (since 0.8) */
+static const unsigned int UNDOFILE_CHUNK_SIZE = 0x100000; // 1 MiB
+/** The maximum size of a blk?????.dat file (since 0.8) */
+static const unsigned int MAX_BLOCKFILE_SIZE = 0x8000000; // 128 MiB
+
+extern std::atomic_bool fImporting;
+extern std::atomic_bool fReindex;
+/** Pruning-related variables and constants */
+/** True if any block files have ever been pruned. */
+extern bool fHavePruned;
+/** True if we're running in -prune mode. */
+extern bool fPruneMode;
+/** Number of MiB of block files that we're trying to stay below. */
+extern uint64_t nPruneTarget;
+
+//! Check whether the block associated with this index entry is pruned or not.
+bool IsBlockPruned(const CBlockIndex* pblockindex);
+
+void CleanupBlockRevFiles();
+
+/** Open a block file (blk?????.dat) */
+FILE* OpenBlockFile(const FlatFilePos& pos, bool fReadOnly = false);
+/** Translation to a filesystem path */
+fs::path GetBlockPosFilename(const FlatFilePos& pos);
+
+/** Get block file info entry for one block file */
+CBlockFileInfo* GetBlockFileInfo(size_t n);
+
+/** Calculate the amount of disk space the block & undo files currently use */
+uint64_t CalculateCurrentUsage();
+
+/**
+ *  Actually unlink the specified files
+ */
+void UnlinkPrunedFiles(const std::set<int>& setFilesToPrune);
+
+/** Functions for disk access for blocks */
+bool ReadBlockFromDisk(CBlock& block, const FlatFilePos& pos, const Consensus::Params& consensusParams);
+bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex, const Consensus::Params& consensusParams);
+bool ReadRawBlockFromDisk(std::vector<uint8_t>& block, const FlatFilePos& pos, const CMessageHeader::MessageStartChars& message_start);
+bool ReadRawBlockFromDisk(std::vector<uint8_t>& block, const CBlockIndex* pindex, const CMessageHeader::MessageStartChars& message_start);
+
+bool UndoReadFromDisk(CBlockUndo& blockundo, const CBlockIndex* pindex);
+bool WriteUndoDataForBlock(const CBlockUndo& blockundo, BlockValidationState& state, CBlockIndex* pindex, const CChainParams& chainparams);
+
+FlatFilePos SaveBlockToDisk(const CBlock& block, int nHeight, CChain& active_chain, const CChainParams& chainparams, const FlatFilePos* dbp);
+
+void ThreadImport(ChainstateManager& chainman, std::vector<fs::path> vImportFiles, const ArgsManager& args);
+
+#endif // BITCOIN_NODE_BLOCKSTORAGE_H