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#region Copyright notice and license
// Copyright 2015 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#endregion
using System;
using Grpc.Core;
namespace Grpc.Core.Internal
{
internal delegate void UnaryResponseClientHandler(bool success, ClientSideStatus receivedStatus, byte[] receivedMessage, Metadata responseHeaders);
// Received status for streaming response calls.
internal delegate void ReceivedStatusOnClientHandler(bool success, ClientSideStatus receivedStatus);
internal delegate void ReceivedMessageHandler(bool success, byte[] receivedMessage);
internal delegate void ReceivedResponseHeadersHandler(bool success, Metadata responseHeaders);
internal delegate void SendCompletionHandler(bool success);
internal delegate void ReceivedCloseOnServerHandler(bool success, bool cancelled);
/// <summary>
/// Abstraction of a native call object.
/// </summary>
internal interface INativeCall : IDisposable
{
void Cancel();
void CancelWithStatus(Status status);
string GetPeer();
void StartUnary(UnaryResponseClientHandler callback, byte[] payload, WriteFlags writeFlags, MetadataArraySafeHandle metadataArray, CallFlags callFlags);
void StartUnary(BatchContextSafeHandle ctx, byte[] payload, WriteFlags writeFlags, MetadataArraySafeHandle metadataArray, CallFlags callFlags);
void StartClientStreaming(UnaryResponseClientHandler callback, MetadataArraySafeHandle metadataArray, CallFlags callFlags);
void StartServerStreaming(ReceivedStatusOnClientHandler callback, byte[] payload, WriteFlags writeFlags, MetadataArraySafeHandle metadataArray, CallFlags callFlags);
void StartDuplexStreaming(ReceivedStatusOnClientHandler callback, MetadataArraySafeHandle metadataArray, CallFlags callFlags);
void StartReceiveMessage(ReceivedMessageHandler callback);
void StartReceiveInitialMetadata(ReceivedResponseHeadersHandler callback);
void StartSendInitialMetadata(SendCompletionHandler callback, MetadataArraySafeHandle metadataArray);
void StartSendMessage(SendCompletionHandler callback, byte[] payload, WriteFlags writeFlags, bool sendEmptyInitialMetadata);
void StartSendCloseFromClient(SendCompletionHandler callback);
void StartSendStatusFromServer(SendCompletionHandler callback, Status status, MetadataArraySafeHandle metadataArray, bool sendEmptyInitialMetadata, byte[] optionalPayload, WriteFlags writeFlags);
void StartServerSide(ReceivedCloseOnServerHandler callback);
}
}
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