Frontend Asset Optimization #3
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cursor review |
![cursor[bot]](https://avatars.githubusercontent.com/in/1210556?s=60&v=4){kind=small}
| return ret, nil | ||
| } | ||
| entryPointAssetsCacheMu.Lock() | ||
| defer entryPointAssetsCacheMu.Unlock() |
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Bug: Cache Race: Redundant Expensive Reloads
The double-checked locking pattern is incomplete. After acquiring the write lock at line 48, the code doesn't re-check if entryPointAssetsCache was already populated by another goroutine. Multiple concurrent requests can pass the initial nil check (lines 41-47) and all proceed to reload assets, causing redundant expensive I/O operations (file reads or HTTP requests) instead of using the cache populated by the first goroutine.
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Test 8
Replicated from ai-code-review-evaluation/grafana-cursor#8
Note
Protects
entryPointAssetsCachewith an RWMutex and updatesGetWebAssetsto use it for safe concurrent reads/writes.sync.RWMutexto guardentryPointAssetsCacheand prevent concurrent access races.GetWebAssetsto use read/write locks around cache access while preserving existing asset loading logic.Written by Cursor Bugbot for commit 95000f9. Configure here.