Update Grpc.Net.Client to remove ValueTask usage

src/Grpc.Net.Client/Internal/GrpcCall.cs

@@ -19,19 +19,15 @@
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
+using System.Runtime.ExceptionServices;
 using Grpc.Core;
 using Grpc.Net.Client.Internal.Http;
 using Grpc.Shared;
 using Microsoft.Extensions.Logging;
-using System.Runtime.ExceptionServices;
 #if SUPPORT_LOAD_BALANCING
 using Grpc.Net.Client.Balancer.Internal;
 #endif
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal;
 
 internal sealed partial class GrpcCall<TRequest, TResponse> : GrpcCall, IGrpcCall<TRequest, TResponse>
@@ -129,7 +125,7 @@ private HttpContent CreatePushUnaryContent(TRequest request)
             ? new PushUnaryContent<TRequest, TResponse>(request, WriteAsync)
             : new WinHttpUnaryContent<TRequest, TResponse>(request, WriteAsync, this);
 
-        ValueTask WriteAsync(TRequest request, Stream stream)
+        Task WriteAsync(TRequest request, Stream stream)
         {
             return WriteMessageAsync(stream, request, Options);
         }
@@ -1091,7 +1087,7 @@ private void DeadlineExceeded()
         CancelCall(new Status(StatusCode.DeadlineExceeded, string.Empty));
     }
 
-    internal ValueTask WriteMessageAsync(
+    internal Task WriteMessageAsync(
         Stream stream,
         ReadOnlyMemory<byte> message,
         CancellationToken cancellationToken)
@@ -1103,7 +1099,7 @@ private void DeadlineExceeded()
             cancellationToken);
     }
 
-    internal ValueTask WriteMessageAsync(
+    internal Task WriteMessageAsync(
         Stream stream,
         TRequest message,
         CallOptions callOptions)
@@ -1140,7 +1136,7 @@ private void DeadlineExceeded()
         return message;
     }
 
-    public Task WriteClientStreamAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, ValueTask> writeFunc, TState state, CancellationToken cancellationToken)
+    public Task WriteClientStreamAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, Task> writeFunc, TState state, CancellationToken cancellationToken)
     {
         return ClientStreamWriter!.WriteAsync(writeFunc, state, cancellationToken);
     }

src/Grpc.Net.Client/Internal/Http/PushStreamContent.cs

@@ -18,18 +18,14 @@
 
 using System.Net;
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal.Http;
 
 internal class PushStreamContent<TRequest, TResponse> : HttpContent
     where TRequest : class
     where TResponse : class
 {
     private readonly HttpContentClientStreamWriter<TRequest, TResponse> _streamWriter;
-    private readonly Func<Stream, ValueTask>? _startCallback;
+    private readonly Func<Stream, Task>? _startCallback;
 
     public PushStreamContent(HttpContentClientStreamWriter<TRequest, TResponse> streamWriter)
     {
@@ -39,7 +35,7 @@ public PushStreamContent(HttpContentClientStreamWriter<TRequest, TResponse> stre
 
     public PushStreamContent(
         HttpContentClientStreamWriter<TRequest, TResponse> streamWriter,
-        Func<Stream, ValueTask>? startCallback) : this(streamWriter)
+        Func<Stream, Task>? startCallback) : this(streamWriter)
     {
         _startCallback = startCallback;
     }

src/Grpc.Net.Client/Internal/Http/PushUnaryContent.cs

@@ -1,4 +1,4 @@
-#region Copyright notice and license
+#region Copyright notice and license
 
 // Copyright 2019 The gRPC Authors
 //
@@ -19,10 +19,6 @@
 using System.Net;
 using Grpc.Shared;
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal;
 
 // TODO: Still need generic args?
@@ -31,9 +27,9 @@ internal class PushUnaryContent<TRequest, TResponse> : HttpContent
     where TResponse : class
 {
     private readonly TRequest _request;
-    private readonly Func<TRequest, Stream, ValueTask> _startCallback;
+    private readonly Func<TRequest, Stream, Task> _startCallback;
 
-    public PushUnaryContent(TRequest request, Func<TRequest, Stream, ValueTask> startCallback)
+    public PushUnaryContent(TRequest request, Func<TRequest, Stream, Task> startCallback)
     {
         _request = request;
         _startCallback = startCallback;
@@ -42,9 +38,7 @@ public PushUnaryContent(TRequest request, Func<TRequest, Stream, ValueTask> star
 
     protected override Task SerializeToStreamAsync(Stream stream, TransportContext? context)
     {
-#pragma warning disable CA2012 // Use ValueTasks correctly
         var writeMessageTask = _startCallback(_request, stream);
-#pragma warning restore CA2012 // Use ValueTasks correctly
         if (writeMessageTask.IsCompletedSuccessfully())
         {
             if (GrpcEventSource.Log.IsEnabled())
@@ -57,7 +51,7 @@ protected override Task SerializeToStreamAsync(Stream stream, TransportContext?
         return WriteMessageCore(writeMessageTask);
     }
 
-    private static async Task WriteMessageCore(ValueTask writeMessageTask)
+    private static async Task WriteMessageCore(Task writeMessageTask)
     {
         await writeMessageTask.ConfigureAwait(false);
         if (GrpcEventSource.Log.IsEnabled())

src/Grpc.Net.Client/Internal/Http/WinHttpUnaryContent.cs

@@ -1,4 +1,4 @@
-#region Copyright notice and license
+#region Copyright notice and license
 
 // Copyright 2019 The gRPC Authors
 //
@@ -16,12 +16,8 @@
 
 #endregion
 
-using Grpc.Shared;
 using System.Net;
-
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
+using Grpc.Shared;
 
 namespace Grpc.Net.Client.Internal.Http;
 
@@ -36,10 +32,10 @@ internal class WinHttpUnaryContent<TRequest, TResponse> : HttpContent
     where TResponse : class
 {
     private readonly TRequest _request;
-    private readonly Func<TRequest, Stream, ValueTask> _startCallback;
+    private readonly Func<TRequest, Stream, Task> _startCallback;
     private readonly GrpcCall<TRequest, TResponse> _call;
 
-    public WinHttpUnaryContent(TRequest request, Func<TRequest, Stream, ValueTask> startCallback, GrpcCall<TRequest, TResponse> call)
+    public WinHttpUnaryContent(TRequest request, Func<TRequest, Stream, Task> startCallback, GrpcCall<TRequest, TResponse> call)
     {
         _request = request;
         _startCallback = startCallback;
@@ -49,9 +45,7 @@ public WinHttpUnaryContent(TRequest request, Func<TRequest, Stream, ValueTask> s
 
     protected override Task SerializeToStreamAsync(Stream stream, TransportContext? context)
     {
-#pragma warning disable CA2012 // Use ValueTasks correctly
         var writeMessageTask = _startCallback(_request, stream);
-#pragma warning restore CA2012 // Use ValueTasks correctly
         if (writeMessageTask.IsCompletedSuccessfully())
         {
             if (GrpcEventSource.Log.IsEnabled())
@@ -64,7 +58,7 @@ protected override Task SerializeToStreamAsync(Stream stream, TransportContext?
         return WriteMessageCore(writeMessageTask);
     }
 
-    private static async Task WriteMessageCore(ValueTask writeMessageTask)
+    private static async Task WriteMessageCore(Task writeMessageTask)
     {
         await writeMessageTask.ConfigureAwait(false);
         if (GrpcEventSource.Log.IsEnabled())

src/Grpc.Net.Client/Internal/HttpContentClientStreamWriter.cs

@@ -22,10 +22,6 @@
 using Grpc.Shared;
 using Log = Grpc.Net.Client.Internal.ClientStreamWriterBaseLog;
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal;
 
 [DebuggerDisplay("{DebuggerToString(),nq}")]
@@ -107,13 +103,13 @@ public override async Task WriteCoreAsync(TRequest message, CancellationToken ca
             ctsRegistration?.Dispose();
         }
 
-        static ValueTask WriteMessageToStream(GrpcCall<TRequest, TResponse> call, Stream writeStream, CallOptions callOptions, TRequest message)
+        static Task WriteMessageToStream(GrpcCall<TRequest, TResponse> call, Stream writeStream, CallOptions callOptions, TRequest message)
         {
             return call.WriteMessageAsync(writeStream, message, callOptions);
         }
     }
 
-    public Task WriteAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, ValueTask> writeFunc, TState state, CancellationToken cancellationToken)
+    public Task WriteAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, Task> writeFunc, TState state, CancellationToken cancellationToken)
     {
         _call.EnsureNotDisposed();
 
@@ -158,7 +154,7 @@ public Task WriteAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallO
 
     public GrpcCall<TRequest, TResponse> Call => _call;
 
-    public async Task WriteAsyncCore<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, ValueTask> writeFunc, TState state, CancellationToken cancellationToken)
+    public async Task WriteAsyncCore<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, Task> writeFunc, TState state, CancellationToken cancellationToken)
     {
         try
         {

src/Grpc.Net.Client/Internal/IGrpcCall.cs

@@ -19,10 +19,6 @@
 using System.Diagnostics.CodeAnalysis;
 using Grpc.Core;
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal;
 
 internal interface IGrpcCall<TRequest, TResponse> : IDisposable, IMethod
@@ -43,7 +39,7 @@ internal interface IGrpcCall<TRequest, TResponse> : IDisposable, IMethod
     void StartDuplexStreaming();
 
     Task WriteClientStreamAsync<TState>(
-        Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, ValueTask> writeFunc,
+        Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, Task> writeFunc,
         TState state,
         CancellationToken cancellationToken);
 

src/Grpc.Net.Client/Internal/Retry/RetryCallBase.cs

@@ -24,10 +24,6 @@
 using Microsoft.Extensions.Logging;
 using Log = Grpc.Net.Client.Internal.Retry.RetryCallBaseLog;
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal.Retry;
 
 internal abstract partial class RetryCallBase<TRequest, TResponse> : IGrpcCall<TRequest, TResponse>
@@ -185,7 +181,7 @@ private HttpContent CreatePushUnaryContent(TRequest request, GrpcCall<TRequest,
             ? new PushUnaryContent<TRequest, TResponse>(request, WriteAsync)
             : new WinHttpUnaryContent<TRequest, TResponse>(request, WriteAsync, call);
 
-        ValueTask WriteAsync(TRequest request, Stream stream)
+        Task WriteAsync(TRequest request, Stream stream)
         {
             return WriteNewMessage(call, stream, call.Options, request);
         }
@@ -195,18 +191,14 @@ ValueTask WriteAsync(TRequest request, Stream stream)
     {
         return new PushStreamContent<TRequest, TResponse>(clientStreamWriter, async requestStream =>
         {
-            ValueTask writeTask;
+            Task writeTask;
             lock (Lock)
             {
                 Log.SendingBufferedMessages(Logger, BufferedMessages.Count);
 
                 if (BufferedMessages.Count == 0)
                 {
-#if NETSTANDARD2_0 || NET462
                     writeTask = Task.CompletedTask;
-#else
-                    writeTask = default;
-#endif
                 }
                 else
                 {
@@ -225,7 +217,7 @@ ValueTask WriteAsync(TRequest request, Stream stream)
         });
     }
 
-    private async ValueTask WriteBufferedMessages(GrpcCall<TRequest, TResponse> call, Stream requestStream, ReadOnlyMemory<byte>[] bufferedMessages)
+    private async Task WriteBufferedMessages(GrpcCall<TRequest, TResponse> call, Stream requestStream, ReadOnlyMemory<byte>[] bufferedMessages)
     {
         for (var i = 0; i < bufferedMessages.Length; i++)
         {
@@ -304,7 +296,7 @@ protected byte[] SerializePayload(GrpcCall<TRequest, TResponse> call, CallOption
         }
     }
 
-    protected async ValueTask WriteNewMessage(GrpcCall<TRequest, TResponse> call, Stream writeStream, CallOptions callOptions, TRequest message)
+    protected async Task WriteNewMessage(GrpcCall<TRequest, TResponse> call, Stream writeStream, CallOptions callOptions, TRequest message)
     {
         // Serialize current message and add to the buffer.
         ReadOnlyMemory<byte> messageData;
@@ -402,7 +394,7 @@ protected void SetNewActiveCallUnsynchronized(IGrpcCall<TRequest, TResponse> cal
         }
     }
 
-    Task IGrpcCall<TRequest, TResponse>.WriteClientStreamAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, ValueTask> writeFunc, TState state, CancellationToken cancellationTokens)
+    Task IGrpcCall<TRequest, TResponse>.WriteClientStreamAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, Task> writeFunc, TState state, CancellationToken cancellationTokens)
     {
         throw new NotSupportedException();
     }

src/Grpc.Net.Client/Internal/Retry/StatusGrpcCall.cs

@@ -19,10 +19,6 @@
 using System.Diagnostics.CodeAnalysis;
 using Grpc.Core;
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal.Retry;
 
 internal sealed class StatusGrpcCall<TRequest, TResponse> : IGrpcCall<TRequest, TResponse>
@@ -100,7 +96,7 @@ public void StartUnary(TRequest request)
         throw new NotSupportedException();
     }
 
-    public Task WriteClientStreamAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, ValueTask> writeFunc, TState state, CancellationToken cancellationToken)
+    public Task WriteClientStreamAsync<TState>(Func<GrpcCall<TRequest, TResponse>, Stream, CallOptions, TState, Task> writeFunc, TState state, CancellationToken cancellationToken)
     {
         return Task.FromException(new RpcException(_status));
     }

src/Grpc.Net.Client/Internal/StreamExtensions.cs

@@ -26,10 +26,6 @@
 using Grpc.Shared;
 using Microsoft.Extensions.Logging;
 
-#if NETSTANDARD2_0 || NET462
-using ValueTask = System.Threading.Tasks.Task;
-#endif
-
 namespace Grpc.Net.Client.Internal;
 
 internal static partial class StreamExtensions
@@ -291,7 +287,7 @@ private static bool ReadCompressedFlag(byte flag)
         }
     }
 
-    public static async ValueTask WriteMessageAsync<TMessage>(
+    public static async Task WriteMessageAsync<TMessage>(
         this Stream stream,
         GrpcCall call,
         TMessage message,
@@ -332,7 +328,7 @@ private static bool ReadCompressedFlag(byte flag)
         }
     }
 
-    public static async ValueTask WriteMessageAsync(
+    public static async Task WriteMessageAsync(
         this Stream stream,
         GrpcCall call,
         ReadOnlyMemory<byte> data,

test/FunctionalTests/Server/CompressionTests.cs

@@ -1,4 +1,4 @@
-#region Copyright notice and license
+#region Copyright notice and license
 
 // Copyright 2019 The gRPC Authors
 //
@@ -408,7 +408,6 @@ public async Task SendCompressedMessageWithoutEncodingHeader_ServerErrorResponse
             return false;
         });
 
-
         var requestMessage = new HelloRequest
         {
             Name = "World"