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f6013265b7
dce8c4c381rpc: getblockfrompeer (Sjors Provoost)b884ababc2rpc: move Ensure* helpers to server_util.h (Sjors Provoost) Pull request description: This adds an RPC method to fetch a block directly from a peer. This can used to fetch stale blocks with lower proof of work that are normally ignored by the node (`headers-only` in `getchaintips`). Usage: ``` bitcoin-cli getblockfrompeer HASH peer_n ``` Closes #20155 Limitations: * you have to specify which peer to fetch the block from * the node must already have the header ACKs for top commit: jnewbery: ACKdce8c4c381fjahr: re-ACKdce8c4c381Tree-SHA512: 843ba2b7a308f640770d624d0aa3265fdc5c6ea48e8db32269b96a082b7420f7953d1d8d1ef2e6529392c7172dded9d15639fbc9c24e7bfa5cfb79e13a5498c8
67 lines
2 KiB
C++
67 lines
2 KiB
C++
// Copyright (c) 2017-2020 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_RPC_BLOCKCHAIN_H
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#define BITCOIN_RPC_BLOCKCHAIN_H
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#include <consensus/amount.h>
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#include <core_io.h>
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#include <fs.h>
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#include <streams.h>
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#include <sync.h>
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#include <any>
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#include <stdint.h>
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#include <vector>
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extern RecursiveMutex cs_main;
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class CBlock;
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class CBlockIndex;
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class CChainState;
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class CTxMemPool;
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class ChainstateManager;
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class UniValue;
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struct NodeContext;
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static constexpr int NUM_GETBLOCKSTATS_PERCENTILES = 5;
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/**
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* Get the difficulty of the net wrt to the given block index.
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*
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* @return A floating point number that is a multiple of the main net minimum
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* difficulty (4295032833 hashes).
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*/
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double GetDifficulty(const CBlockIndex* blockindex);
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/** Callback for when block tip changed. */
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void RPCNotifyBlockChange(const CBlockIndex*);
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/** Block description to JSON */
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UniValue blockToJSON(const CBlock& block, const CBlockIndex* tip, const CBlockIndex* blockindex, TxVerbosity verbosity) LOCKS_EXCLUDED(cs_main);
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/** Mempool information to JSON */
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UniValue MempoolInfoToJSON(const CTxMemPool& pool);
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/** Mempool to JSON */
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UniValue MempoolToJSON(const CTxMemPool& pool, bool verbose = false, bool include_mempool_sequence = false);
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/** Block header to JSON */
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UniValue blockheaderToJSON(const CBlockIndex* tip, const CBlockIndex* blockindex) LOCKS_EXCLUDED(cs_main);
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/** Used by getblockstats to get feerates at different percentiles by weight */
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void CalculatePercentilesByWeight(CAmount result[NUM_GETBLOCKSTATS_PERCENTILES], std::vector<std::pair<CAmount, int64_t>>& scores, int64_t total_weight);
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/**
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* Helper to create UTXO snapshots given a chainstate and a file handle.
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* @return a UniValue map containing metadata about the snapshot.
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*/
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UniValue CreateUTXOSnapshot(
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NodeContext& node,
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CChainState& chainstate,
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CAutoFile& afile,
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const fs::path& path,
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const fs::path& tmppath);
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#endif // BITCOIN_RPC_BLOCKCHAIN_H
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