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prefer to use txindex if available for GetTransaction

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Fixes #22382
This commit is contained in:
Jameson Lopp
2021-07-01 10:17:28 -04:00
committed by Jameson Lopp
parent 2749613020
commit 78f4c8b98e
3 changed files with 24 additions and 20 deletions
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11
src/validation.h
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@@ -142,15 +142,16 @@ void StartScriptCheckWorkerThreads(int threads_num);
/** Stop all of the script checking worker threads */
void StopScriptCheckWorkerThreads();
/**
* Return transaction from the block at block_index.
* If block_index is not provided, fall back to mempool.
* If mempool is not provided or the tx couldn't be found in mempool, fall back to g_txindex.
* Return transaction with a given hash.
* If mempool is provided and block_index is not provided, check it first for the tx.
* If -txindex is available, check it next for the tx.
* Finally, if block_index is provided, check for tx by reading entire block from disk.
*
* @param[in] block_index The block to read from disk, or nullptr
* @param[in] mempool If block_index is not provided, look in the mempool, if provided
* @param[in] mempool If provided, check mempool for tx
* @param[in] hash The txid
* @param[in] consensusParams The params
* @param[out] hashBlock The hash of block_index, if the tx was found via block_index
* @param[out] hashBlock The block hash, if the tx was found via -txindex or block_index
* @returns The tx if found, otherwise nullptr
*/
CTransactionRef GetTransaction(const CBlockIndex* const block_index, const CTxMemPool* const mempool, const uint256& hash, const Consensus::Params& consensusParams, uint256& hashBlock);