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25 lines
812 B
25 lines
812 B
/**
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* Get a revokable named exclusive lock with a TTL. This is convenient for housekeeping
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* tasks, which can be done by any server, but should preferably be only done by one
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* at a time.
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*/
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export interface IElectionStore {
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/**
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* Try to get a lock called <name> for a specified duration. If the named lock
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* has already been taken, null is returned, otherwise a secret is returned.
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* The secret can be used to remove the lock before the duration has expired.
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*/
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getElection(name: string, durationInMs: number): Promise<string|null>;
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/**
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* Remove a named lock, presenting the secret returned by getElection() as
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* a cross-check.
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*/
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removeElection(name: string, electionKey: string): Promise<void>;
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/**
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* Close down access to the store.
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*/
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close(): Promise<void>;
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}
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