Continue removing sync API

Part of #1472

* Remove the last sync I/O method from `IFrameHandler`

Update action versions to address Node.js warnings

* Remove use of `EnsureCompleted`

* Handle connection start using async/await

* Remove `EnsureCompleted` task extensions.

* Remove `BasicConsumeRpcContinuation`

* Update action versions to address Node.js warnings

* Remove non-async RPC continuation classes

* Remove unused classes

* Address some TODOs

* Set a `TimeoutException` when an async RPC continuation times out

.github/workflows/build-test.yaml

@@ -15,7 +15,7 @@ jobs:
         with:
           submodules: true
       - name: Cache NuGet packages
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.nuget/packages
@@ -32,7 +32,7 @@ jobs:
       - name: Unit Tests
         run: dotnet test "${{ github.workspace }}\projects\Test\Unit\Unit.csproj" --no-restore --no-build --logger 'console;verbosity=detailed'
       - name: Upload Build (Debug)
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: rabbitmq-dotnet-client-build-win32
           path: |
@@ -52,14 +52,14 @@ jobs:
         with:
           submodules: true
       - name: Cache installers
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           # Note: the cache path is relative to the workspace directory
           # https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#using-the-cache-action
           path: ~/installers
           key: ${{ runner.os }}-v0-${{ hashFiles('.ci/versions.json') }}
       - name: Download Build (Debug)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: rabbitmq-dotnet-client-build-win32
           path: projects
@@ -81,7 +81,7 @@ jobs:
             "${{ github.workspace }}\projects\Test\Integration\Integration.csproj" --no-restore --no-build --logger 'console;verbosity=detailed'
       - name: Maybe upload RabbitMQ logs
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: rabbitmq-logs-integration-win32
           path: ~/AppData/Roaming/RabbitMQ/log/
@@ -97,14 +97,14 @@ jobs:
         with:
           submodules: true
       - name: Cache installers
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           # Note: the cache path is relative to the workspace directory
           # https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#using-the-cache-action
           path: ~/installers
           key: ${{ runner.os }}-v0-${{ hashFiles('.ci/versions.json') }}
       - name: Download Build (Debug)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: rabbitmq-dotnet-client-build-win32
           path: projects
@@ -115,7 +115,7 @@ jobs:
         run: dotnet test --environment "RABBITMQ_RABBITMQCTL_PATH=${{ steps.install-start-rabbitmq.outputs.path }}" "${{ github.workspace }}\projects\Test\SequentialIntegration\SequentialIntegration.csproj" --no-restore --no-build --logger 'console;verbosity=detailed'
       - name: Maybe upload RabbitMQ logs
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: rabbitmq-logs-sequential-integration-win32
           path: ~/AppData/Roaming/RabbitMQ/log/
@@ -128,11 +128,11 @@ jobs:
         with:
           submodules: true
       - name: Setup .NET
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 6.x
       - name: Cache NuGet packages
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.nuget/packages
@@ -149,7 +149,7 @@ jobs:
       - name: Unit Tests
         run: dotnet test "${{ github.workspace }}/projects/Test/Unit/Unit.csproj" --no-restore --no-build --logger 'console;verbosity=detailed'
       - name: Upload Build (Debug)
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: rabbitmq-dotnet-client-build-ubuntu
           path: |
@@ -166,11 +166,11 @@ jobs:
         with:
           submodules: true
       - name: Setup .NET
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 6.x
       - name: Download Build (Debug)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: rabbitmq-dotnet-client-build-ubuntu
           path: projects
@@ -188,7 +188,7 @@ jobs:
                 "${{ github.workspace }}/projects/Test/Integration/Integration.csproj" --no-restore --no-build --logger 'console;verbosity=detailed'
       - name: Maybe upload RabbitMQ logs
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: rabbitmq-logs-integration-ubuntu
           path: ${{ github.workspace }}/.ci/ubuntu/log/
@@ -201,11 +201,11 @@ jobs:
         with:
           submodules: true
       - name: Setup .NET
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 6.x
       - name: Download Build (Debug)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: rabbitmq-dotnet-client-build-ubuntu
           path: projects
@@ -219,7 +219,7 @@ jobs:
                 "${{ github.workspace }}/projects/Test/SequentialIntegration/SequentialIntegration.csproj" --no-restore --no-build --logger 'console;verbosity=detailed'
       - name: Maybe upload RabbitMQ logs
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: rabbitmq-logs-sequential-integration-ubuntu
           path: ${{ github.workspace }}/.ci/ubuntu/log/

.github/workflows/oauth2.yaml

@@ -17,10 +17,10 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: true
-      - uses: actions/setup-dotnet@v3
+      - uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 6.x
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.nuget/packages

.github/workflows/publish-nuget.yaml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: true
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.nuget/packages

projects/Benchmarks/Networking/Networking_BasicDeliver_LongLivedConnection.cs

@@ -22,7 +22,7 @@ public void GlobalSetup()
 
             var cf = new ConnectionFactory { ConsumerDispatchConcurrency = 2 };
             // TODO / NOTE: https://github.com/dotnet/BenchmarkDotNet/issues/1738
-            _connection = cf.CreateConnectionAsync().EnsureCompleted();
+            _connection = EnsureCompleted(cf.CreateConnectionAsync());
         }
 
         [GlobalCleanup]
@@ -37,5 +37,7 @@ public Task Publish_Hello_World()
         {
             return Networking_BasicDeliver_Commons.Publish_Hello_World(_connection, messageCount, _body);
         }
+
+        private static T EnsureCompleted<T>(Task<T> task) => task.GetAwaiter().GetResult();
     }
 }

projects/RabbitMQ.Client/client/TaskExtensions.cs

@@ -203,34 +203,6 @@ static async ValueTask DoTimeoutAfter(ValueTask valueTask, TimeSpan timeout)
 #endif
         }
 
-        /*
-         * https://devblogs.microsoft.com/dotnet/configureawait-faq/
-         * I'm using GetAwaiter().GetResult(). Do I need to use ConfigureAwait(false)?
-         * Answer: No
-         */
-        public static void EnsureCompleted(this Task task)
-        {
-            task.GetAwaiter().GetResult();
-        }
-
-        public static T EnsureCompleted<T>(this Task<T> task)
-        {
-            return task.GetAwaiter().GetResult();
-        }
-
-        public static T EnsureCompleted<T>(this ValueTask<T> task)
-        {
-            return task.GetAwaiter().GetResult();
-        }
-
-        public static void EnsureCompleted(this ValueTask task)
-        {
-            if (false == task.IsCompletedSuccessfully)
-            {
-                task.GetAwaiter().GetResult();
-            }
-        }
-
 #if NETSTANDARD
         // https://github.com/dotnet/runtime/issues/23878
         // https://github.com/dotnet/runtime/issues/23878#issuecomment-1398958645

projects/RabbitMQ.Client/client/framing/Channel.cs

@@ -108,23 +108,19 @@ protected override Task<bool> DispatchCommandAsync(IncomingCommand cmd, Cancella
                     }
                 case ProtocolCommandId.BasicCancelOk:
                     {
-                        bool result = HandleBasicCancelOk(in cmd);
-                        return Task.FromResult(result);
+                        return Task.FromResult(false);
                     }
                 case ProtocolCommandId.BasicConsumeOk:
                     {
-                        bool result = HandleBasicConsumeOk(in cmd);
-                        return Task.FromResult(result);
+                        return Task.FromResult(false);
                     }
                 case ProtocolCommandId.BasicGetEmpty:
                     {
-                        bool result = HandleBasicGetEmpty(in cmd);
-                        return Task.FromResult(result);
+                        return Task.FromResult(false);
                     }
                 case ProtocolCommandId.BasicGetOk:
                     {
-                        bool result = HandleBasicGetOk(in cmd);
-                        return Task.FromResult(result);
+                        return Task.FromResult(false);
                     }
                 case ProtocolCommandId.BasicNack:
                     {
@@ -165,8 +161,7 @@ protected override Task<bool> DispatchCommandAsync(IncomingCommand cmd, Cancella
                     }
                 case ProtocolCommandId.ConnectionStart:
                     {
-                        HandleConnectionStart(in cmd);
-                        return Task.FromResult(true);
+                        return HandleConnectionStartAsync(cmd, cancellationToken);
                     }
                 case ProtocolCommandId.ConnectionTune:
                     {

projects/RabbitMQ.Client/client/impl/AsyncRpcContinuations.cs

@@ -68,6 +68,7 @@ public AsyncRpcContinuation(TimeSpan continuationTimeout)
                     // TODO LRB rabbitmq/rabbitmq-dotnet-client#1347
                     // Cancellation was successful, does this mean we should set a TimeoutException
                     // in the same manner as BlockingCell?
+                    tcs.SetException(new TimeoutException("TODO LRB rabbitmq/rabbitmq-dotnet-client#1347"));
                 }
             }, _tcs);
 #else

projects/RabbitMQ.Client/client/impl/AutorecoveringConnection.cs

@@ -65,14 +65,6 @@ internal AutorecoveringConnection(ConnectionConfig config, IEndpointResolver end
             _endpoints = endpoints;
         }
 
-        internal IConnection Open()
-        {
-            IFrameHandler fh = _endpoints.SelectOneAsync(_config.FrameHandlerFactoryAsync, CancellationToken.None).EnsureCompleted();
-            CreateInnerConnection(fh);
-            _innerConnection.Open();
-            return this;
-        }
-
         internal async ValueTask<IConnection> OpenAsync(CancellationToken cancellationToken)
         {
             IFrameHandler fh = await _endpoints.SelectOneAsync(_config.FrameHandlerFactoryAsync, cancellationToken)