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[net processin] Don't take cs_main in FindTxForGetData

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Taking cs_main is no longer necessary since we moved
`m_recently_announced_invs` to `Peer` and `mapRelay` is actually only
accessed from the message processing thread.
This commit is contained in:
dergoegge 2023-03-31 12:53:46 +02:00
parent 6b9fedd221
commit c85ee76a36
1 changed files with 10 additions and 13 deletions
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23
src/net_processing.cpp
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@ -909,7 +909,7 @@ private:
/** Determine whether or not a peer can request a transaction, and return it (or nullptr if not found or not allowed). */
CTransactionRef FindTxForGetData(const Peer& peer, const GenTxid& gtxid, const std::chrono::seconds mempool_req, const std::chrono::seconds now)
LOCKS_EXCLUDED(cs_main) EXCLUSIVE_LOCKS_REQUIRED(NetEventsInterface::g_msgproc_mutex);
EXCLUSIVE_LOCKS_REQUIRED(NetEventsInterface::g_msgproc_mutex);
void ProcessGetData(CNode& pfrom, Peer& peer, const std::atomic<bool>& interruptMsgProc)
EXCLUSIVE_LOCKS_REQUIRED(!m_most_recent_block_mutex, peer.m_getdata_requests_mutex, NetEventsInterface::g_msgproc_mutex)
@ -920,9 +920,9 @@ private:
/** Relay map (txid or wtxid -> CTransactionRef) */
typedef std::map<uint256, CTransactionRef> MapRelay;
MapRelay mapRelay GUARDED_BY(cs_main);
MapRelay mapRelay GUARDED_BY(NetEventsInterface::g_msgproc_mutex);
/** Expiration-time ordered list of (expire time, relay map entry) pairs. */
std::deque<std::pair<std::chrono::microseconds, MapRelay::iterator>> g_relay_expiration GUARDED_BY(cs_main);
std::deque<std::pair<std::chrono::microseconds, MapRelay::iterator>> g_relay_expiration GUARDED_BY(NetEventsInterface::g_msgproc_mutex);
/**
* When a peer sends us a valid block, instruct it to announce blocks to us
@ -2270,16 +2270,13 @@ CTransactionRef PeerManagerImpl::FindTxForGetData(const Peer& peer, const GenTxi
}
}
{
LOCK(cs_main);
// Otherwise, the transaction must have been announced recently.
if (Assume(peer.GetTxRelay())->m_recently_announced_invs.contains(gtxid.GetHash())) {
// If it was, it can be relayed from either the mempool...
if (txinfo.tx) return std::move(txinfo.tx);
// ... or the relay pool.
auto mi = mapRelay.find(gtxid.GetHash());
if (mi != mapRelay.end()) return mi->second;
}
// Otherwise, the transaction must have been announced recently.
if (Assume(peer.GetTxRelay())->m_recently_announced_invs.contains(gtxid.GetHash())) {
// If it was, it can be relayed from either the mempool...
if (txinfo.tx) return std::move(txinfo.tx);
// ... or the relay pool.
auto mi = mapRelay.find(gtxid.GetHash());
if (mi != mapRelay.end()) return mi->second;
}
return {};