40 lines
1.5 KiB
C#
40 lines
1.5 KiB
C#
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/*
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* Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
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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.ServiceModel;
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using SafeExamBrowser.Contracts.Communication.Messages;
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using SafeExamBrowser.Contracts.Communication.Responses;
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namespace SafeExamBrowser.Contracts.Communication
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{
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[ServiceContract(SessionMode = SessionMode.Required)]
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public interface ICommunicationHost
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{
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/// <summary>
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/// Initiates a connection to the host and must thus be called before any other opertion. To authenticate itself to the host, the
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/// client can specify a security token. If the connection request was successful, a new session will be created by the host and
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/// the client will subsequently be allowed to start communicating with the host.
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/// </summary>
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[OperationContract(IsInitiating = true)]
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IConnectResponse Connect(Guid? token = null);
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/// <summary>
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/// Closes the connection to the host and instructs it to terminate the communication session.
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/// </summary>
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[OperationContract(IsInitiating = false, IsTerminating = true)]
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void Disconnect(IMessage message);
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/// <summary>
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/// Sends a message to the host, optionally returning a response. If no response is expected, <c>null</c> will be returned.
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/// </summary>
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[OperationContract(IsInitiating = false)]
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IResponse Send(IMessage message);
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}
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}
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