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Merge bitcoin/bitcoin#25557: p2p: Eliminate atomic for m_last_getheaders_timestamp

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613e221149 test: remove unnecessary parens (Suhas Daftuar)
e939cf2b76 Remove atomic for m_last_getheaders_timestamp (Suhas Daftuar)

Pull request description:

  Eliminate the unnecessary atomic guarding `m_last_getheaders_timestamp`, which is only accessed in a single thread (thanks to MarcoFalke for pointing this out).

  Also address a nit that came up in #25454.

ACKs for top commit:
  MarcoFalke:
    review ACK 613e221149
  vasild:
    ACK 613e221149

Tree-SHA512: 6d6c473735b450b8ad43aae5cf16ed419154d72f4a05c0a6ce6f26caecab9db2361041398b70bf9395611c107d50897f501fa5fdbabb2891144bbc2b479dfdad
This commit is contained in:
MacroFake 2022-07-14 09:55:40 +02:00
commit 8efa73e7ce
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2 changed files with 4 additions and 4 deletions
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6
src/net_processing.cpp
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@ -358,7 +358,7 @@ struct Peer {
std::deque<CInv> m_getdata_requests GUARDED_BY(m_getdata_requests_mutex);
/** Time of the last getheaders message to this peer */
std::atomic<NodeClock::time_point> m_last_getheaders_timestamp{NodeSeconds{}};
NodeClock::time_point m_last_getheaders_timestamp{};
Peer(NodeId id)
: m_id{id}
@ -2276,7 +2276,7 @@ bool PeerManagerImpl::MaybeSendGetHeaders(CNode& pfrom, const CBlockLocator& loc
// Only allow a new getheaders message to go out if we don't have a recent
// one already in-flight
if (current_time - peer.m_last_getheaders_timestamp.load() > HEADERS_RESPONSE_TIME) {
if (current_time - peer.m_last_getheaders_timestamp > HEADERS_RESPONSE_TIME) {
m_connman.PushMessage(&pfrom, msgMaker.Make(NetMsgType::GETHEADERS, locator, uint256()));
peer.m_last_getheaders_timestamp = current_time;
return true;
@ -3974,7 +3974,7 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type,
// Assume that this is in response to any outstanding getheaders
// request we may have sent, and clear out the time of our last request
peer->m_last_getheaders_timestamp.store(NodeSeconds{});
peer->m_last_getheaders_timestamp = {};
std::vector<CBlockHeader> headers;

2
test/functional/feature_minchainwork.py
View file

@ -82,7 +82,7 @@ class MinimumChainWorkTest(BitcoinTestFramework):
msg.hashstop = 0
peer.send_and_ping(msg)
time.sleep(5)
assert ("headers" not in peer.last_message or len(peer.last_message["headers"].headers) == 0)
assert "headers" not in peer.last_message or len(peer.last_message["headers"].headers) == 0
self.log.info("Generating one more block")
self.generate(self.nodes[0], 1)