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Saturating sub timestamp from now to avoid possible undeflowr (#420)

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This commit is contained in:
James Wilson
2021-10-01 16:55:35 +01:00
committed by GitHub
parent 18a3d7a42f
commit 38c5dff0b7
1 changed files with 2 additions and 2 deletions
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backend/telemetry_core/src/state/chain.rs
+2 -2
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@@ -259,7 +259,7 @@ impl Chain {
self.best.hash,
);
if let Some(timestamp) = self.timestamp {
self.block_times.push(now - timestamp);
self.block_times.push(now.saturating_sub(timestamp));
self.average_block_time = Some(self.block_times.average());
}
self.timestamp = Some(now);
@@ -271,7 +271,7 @@ impl Chain {
propagation_time = Some(0);
} else if block.height == self.best.height {
if let Some(timestamp) = self.timestamp {
propagation_time = Some(now - timestamp);
propagation_time = Some(now.saturating_sub(timestamp));
}
}