mirror of https://github.com/bitcoin/bitcoin.git
70 lines
3.0 KiB
C++
70 lines
3.0 KiB
C++
// Copyright (c) 2017-2022 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_NODE_TRANSACTION_H
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#define BITCOIN_NODE_TRANSACTION_H
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#include <policy/feerate.h>
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#include <primitives/transaction.h>
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#include <util/error.h>
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class CBlockIndex;
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class CTxMemPool;
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namespace Consensus {
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struct Params;
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}
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namespace node {
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class BlockManager;
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struct NodeContext;
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/** Maximum fee rate for sendrawtransaction and testmempoolaccept RPC calls.
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* Also used by the GUI when broadcasting a completed PSBT.
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* By default, a transaction with a fee rate higher than this will be rejected
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* by these RPCs and the GUI. This can be overridden with the maxfeerate argument.
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*/
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static const CFeeRate DEFAULT_MAX_RAW_TX_FEE_RATE{COIN / 10};
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/** Maximum burn value for sendrawtransaction, submitpackage, and testmempoolaccept RPC calls.
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* By default, a transaction with a burn value higher than this will be rejected
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* by these RPCs and the GUI. This can be overridden with the maxburnamount argument.
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*/
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static const CAmount DEFAULT_MAX_BURN_AMOUNT{0};
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/**
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* Submit a transaction to the mempool and (optionally) relay it to all P2P peers.
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*
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* Mempool submission can be synchronous (will await mempool entry notification
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* over the CValidationInterface) or asynchronous (will submit and not wait for
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* notification), depending on the value of wait_callback. wait_callback MUST
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* NOT be set while cs_main, cs_mempool or cs_wallet are held to avoid
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* deadlock.
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*
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* @param[in] node reference to node context
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* @param[in] tx the transaction to broadcast
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* @param[out] err_string reference to std::string to fill with error string if available
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* @param[in] max_tx_fee reject txs with fees higher than this (if 0, accept any fee)
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* @param[in] relay flag if both mempool insertion and p2p relay are requested
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* @param[in] wait_callback wait until callbacks have been processed to avoid stale result due to a sequentially RPC.
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* return error
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*/
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[[nodiscard]] TransactionError BroadcastTransaction(NodeContext& node, CTransactionRef tx, std::string& err_string, const CAmount& max_tx_fee, bool relay, bool wait_callback);
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/**
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* Return transaction with a given hash.
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* If mempool is provided and block_index is not provided, check it first for the tx.
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* If -txindex is available, check it next for the tx.
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* Finally, if block_index is provided, check for tx by reading entire block from disk.
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*
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* @param[in] block_index The block to read from disk, or nullptr
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* @param[in] mempool If provided, check mempool for tx
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* @param[in] hash The txid
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* @param[out] hashBlock The block hash, if the tx was found via -txindex or block_index
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* @returns The tx if found, otherwise nullptr
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*/
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CTransactionRef GetTransaction(const CBlockIndex* const block_index, const CTxMemPool* const mempool, const uint256& hash, uint256& hashBlock, const BlockManager& blockman);
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} // namespace node
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#endif // BITCOIN_NODE_TRANSACTION_H
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