Function GetTransaction

src/main.cpp:327–356

Return transaction in tx, and if it was found inside a block, its hash is placed in blockHash

// Return transaction in tx, and if it was found inside a block, its hash is placed in blockHash
bool GetTransaction(std::shared_ptr<CBaseTx> &pBaseTx, const uint256 &hash, CBlockDBCache &blockCache,
                    bool bSearchMemPool) {
    {
        LOCK(cs_main);
        {
            if (bSearchMemPool == true) {
                pBaseTx = mempool.Lookup(hash);
                if (pBaseTx.get())
                    return true;
            }
        }

        if (SysCfg().IsTxIndex()) {
            CDiskTxPos diskTxPos;
            if (blockCache.ReadTxIndex(hash, diskTxPos)) {
                CAutoFile file(OpenBlockFile(diskTxPos, true), SER_DISK, CLIENT_VERSION);
                CBlockHeader header;
                try {
                    file >> header;
                    fseek(file, diskTxPos.nTxOffset, SEEK_CUR);
                    file >> pBaseTx;
                } catch (std::exception &e) {
                    return ERRORMSG("Deserialize or I/O error - %s", e.what());
                }
                return true;
            }
        }
    }
    return false;
}

uint256 GetOrphanRoot(const uint256 &hash) {
    map<uint256, COrphanBlock *>::iterator it = mapOrphanBlocks.find(hash);