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fix: implement atomic file writes in saveStoreUnsafe to prevent data loss on crash

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This commit is contained in:
decker 2026-02-24 07:03:00 +08:00
parent 09b1992dd7
commit 299dadd1b5
1 changed files with 9 additions and 1 deletions
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10
pkg/cron/service.go
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@ -340,7 +340,15 @@ func (cs *CronService) saveStoreUnsafe() error {
return err return err
} }
return os.WriteFile(cs.storePath, data, 0o600) // Write atomically: write to a temp file then rename.
// os.WriteFile truncates the file before writing, so a crash between
// truncation and completion leaves an empty or partial file.
// os.Rename on the same filesystem is atomic on Linux.
tmpPath := cs.storePath + ".tmp"
if err := os.WriteFile(tmpPath, data, 0600); err != nil {
return err
}
return os.Rename(tmpPath, cs.storePath)
} }
func (cs *CronService) AddJob( func (cs *CronService) AddJob(