38 lines
1.0 KiB
Java
38 lines
1.0 KiB
Java
// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package pgp.cert_d;
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import java.io.IOException;
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public interface LockingMechanism {
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/**
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* Lock the store for writes.
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* Readers can continue to use the store and will always see consistent certs.
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*
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* @throws IOException in case of an IO error
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* @throws InterruptedException if the thread gets interrupted
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*/
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void lockDirectory() throws IOException, InterruptedException;
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/**
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* Try top lock the store for writes.
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* Return false without locking the store in case the store was already locked.
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*
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* @return true if locking succeeded, false otherwise
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*
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* @throws IOException in case of an IO error
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*/
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boolean tryLockDirectory() throws IOException;
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/**
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* Release the directory write-lock acquired via {@link #lockDirectory()}.
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*
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* @throws IOException in case of an IO error
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*/
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void releaseDirectory() throws IOException;
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}
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