diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/net_processing.cpp | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/src/net_processing.cpp b/src/net_processing.cpp index 6282849ed1..380decbcb7 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -1782,11 +1782,24 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, } } + // When we succeed in decoding a block's txids from a cmpctblock + // message we typically jump to the BLOCKTXN handling code, with a + // dummy (empty) BLOCKTXN message, to re-use the logic there in + // completing processing of the putative block (without cs_main). + bool fProcessBLOCKTXN = false; + CDataStream blockTxnMsg(SER_NETWORK, PROTOCOL_VERSION); + + // If we end up treating this as a plain headers message, call that as well + // without cs_main. + bool fRevertToHeaderProcessing = false; + CDataStream vHeadersMsg(SER_NETWORK, PROTOCOL_VERSION); + // Keep a CBlock for "optimistic" compactblock reconstructions (see // below) std::shared_ptr<CBlock> pblock = std::make_shared<CBlock>(); bool fBlockReconstructed = false; + { LOCK(cs_main); // If AcceptBlockHeader returned true, it set pindex assert(pindex); @@ -1868,9 +1881,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Dirty hack to jump to BLOCKTXN code (TODO: move message handling into their own functions) BlockTransactions txn; txn.blockhash = cmpctblock.header.GetHash(); - CDataStream blockTxnMsg(SER_NETWORK, PROTOCOL_VERSION); blockTxnMsg << txn; - return ProcessMessage(pfrom, NetMsgType::BLOCKTXN, blockTxnMsg, nTimeReceived, chainparams, connman); + fProcessBLOCKTXN = true; } else { req.blockhash = pindex->GetBlockHash(); connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETBLOCKTXN, req)); @@ -1906,11 +1918,17 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Dirty hack to process as if it were just a headers message (TODO: move message handling into their own functions) std::vector<CBlock> headers; headers.push_back(cmpctblock.header); - CDataStream vHeadersMsg(SER_NETWORK, PROTOCOL_VERSION); vHeadersMsg << headers; - return ProcessMessage(pfrom, NetMsgType::HEADERS, vHeadersMsg, nTimeReceived, chainparams, connman); + fRevertToHeaderProcessing = true; } } + } // cs_main + + if (fProcessBLOCKTXN) + return ProcessMessage(pfrom, NetMsgType::BLOCKTXN, blockTxnMsg, nTimeReceived, chainparams, connman); + + if (fRevertToHeaderProcessing) + return ProcessMessage(pfrom, NetMsgType::HEADERS, vHeadersMsg, nTimeReceived, chainparams, connman); if (fBlockReconstructed) { // If we got here, we were able to optimistically reconstruct a |