diff options
| author | Paul Buetow <paul@buetow.org> | 2026-05-27 08:08:37 +0300 |
|---|---|---|
| committer | Paul Buetow <paul@buetow.org> | 2026-05-27 08:08:37 +0300 |
| commit | 9b6be4cf0fcaf6426886c2a0ecf55f06965f1a3f (patch) | |
| tree | 8cd7ca946e928fe2fe649e8cfda1b2f295f7bd8e /internal/flamegraph/livetrie.go | |
| parent | 60e9a8fc836dc60ca5038890f3a0fa646ee2450b (diff) | |
flamegraph: guard SnapshotJSON cache writes (5p)
Diffstat (limited to 'internal/flamegraph/livetrie.go')
| -rw-r--r-- | internal/flamegraph/livetrie.go | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/internal/flamegraph/livetrie.go b/internal/flamegraph/livetrie.go index 47299e6..4554780 100644 --- a/internal/flamegraph/livetrie.go +++ b/internal/flamegraph/livetrie.go @@ -234,8 +234,11 @@ func (lt *LiveTrie) SnapshotJSON() ([]byte, uint64) { } lt.cacheMu.Lock() - lt.cacheVersion = version - lt.cacheJSON = slices.Clone(payload) + // Only commit if no concurrent caller stored a newer version. + if version >= lt.cacheVersion { + lt.cacheVersion = version + lt.cacheJSON = slices.Clone(payload) + } lt.cacheMu.Unlock() return payload, version |