Fast-path check for empty block on filestore cache lookup#7381
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neilalexander merged 1 commit intomainfrom Oct 1, 2025
Merged
Fast-path check for empty block on filestore cache lookup#7381neilalexander merged 1 commit intomainfrom
neilalexander merged 1 commit intomainfrom
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Signed-off-by: Neil Twigg <neil@nats.io>
MauriceVanVeen
approved these changes
Oct 1, 2025
| if seq < atomic.LoadUint64(&mb.first.seq) || seq > atomic.LoadUint64(&mb.last.seq) { | ||
| fseq, lseq := atomic.LoadUint64(&mb.first.seq), atomic.LoadUint64(&mb.last.seq) | ||
| switch { | ||
| case lseq == fseq-1: |
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The lock is held, so using mb.msgs == 0 could be a simpler condition.
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This should improve the error reporting and reduce more expensive lookup operations when we know that the block is empty.
Signed-off-by: Neil Twigg neil@nats.io