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update example to handle race condition #445

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update example to handle race condition #445

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7 changes: 7 additions & 0 deletions plugins/vault-plugin-secrets-hashicups/backend.go
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Original file line number Diff line number Diff line change
Expand Up @@ -82,6 +82,13 @@ func (b *hashiCupsBackend) getClient(ctx context.Context, s logical.Storage) (*h
b.lock.Lock()
unlockFunc = b.lock.Unlock

// Check if another goroutine created clients between RUnlock() and Lock() above
if b.client != nil {
return b.client, nil
}

// create b.client and return

return nil, fmt.Errorf("need to return client")
}

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