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fix underflow in pip, closes #10419 (#10423)

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Marek Kotewicz 2019-02-27 10:08:04 +01:00 committed by GitHub
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ethcore/light/src/net/mod.rs
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@ -533,6 +533,9 @@ impl LightProtocol {
// the timer approach will skip 1 (possibly 2) in rare occasions. // the timer approach will skip 1 (possibly 2) in rare occasions.
if peer_info.sent_head == announcement.head_hash || if peer_info.sent_head == announcement.head_hash ||
peer_info.status.head_num >= announcement.head_num || peer_info.status.head_num >= announcement.head_num ||
// fix for underflow reported in
// https://github.com/paritytech/parity-ethereum/issues/10419
now < peer_info.last_update ||
now - peer_info.last_update < UPDATE_INTERVAL { now - peer_info.last_update < UPDATE_INTERVAL {
continue continue
} }