78 lines
1.4 KiB
C#
78 lines
1.4 KiB
C#
/*
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* Copyright (c) 2024 ETH Zürich, IT Services
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using System.Collections.Concurrent;
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using SafeExamBrowser.Client.Contracts;
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namespace SafeExamBrowser.Client
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{
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internal class Coordinator : ICoordinator
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{
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private readonly ConcurrentBag<Guid> reconfiguration;
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private readonly ConcurrentBag<Guid> session;
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internal Coordinator()
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{
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reconfiguration = new ConcurrentBag<Guid>();
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session = new ConcurrentBag<Guid>();
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}
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public bool IsReconfigurationLocked()
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{
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return !reconfiguration.IsEmpty;
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}
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public bool IsSessionLocked()
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{
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return !session.IsEmpty;
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}
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public void ReleaseReconfigurationLock()
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{
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reconfiguration.TryTake(out _);
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}
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public void ReleaseSessionLock()
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{
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session.TryTake(out _);
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}
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public bool RequestReconfigurationLock()
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{
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var acquired = false;
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lock (reconfiguration)
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{
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if (reconfiguration.IsEmpty)
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{
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reconfiguration.Add(Guid.NewGuid());
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acquired = true;
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}
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}
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return acquired;
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}
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public bool RequestSessionLock()
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{
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var acquired = false;
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lock (session)
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{
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if (session.IsEmpty)
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{
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session.Add(Guid.NewGuid());
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acquired = true;
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}
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}
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return acquired;
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}
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}
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}
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