Additional Validation for PauseThresholdWriter and ResumeThresholdWriter#77359

cdbullard · 2022-10-23T20:07:38Z

Add in additional checks to ensure certain edge cases identified in the issue are handled appropriately to prevent programs from hanging indefinitely.

src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/Pipe.cs

halter73 · 2022-12-06T22:03:18Z

I've also submitted a PR so the API docs include info about the PauseWriteThreshold of zero being unlimited on the property too. dotnet/dotnet-api-docs#8693

src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/Pipe.cs

Turnerj · 2023-03-10T04:12:38Z

src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/PipeOptions.cs

+
+            if (pauseWriterThreshold < 0)
+            {
+                ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.pauseWriterThreshold);
+            }


Not sure why this block needs to move unless we're concerned about DefaultPauseWriterThreshold being less than 0. Where it was before would still throw an exception if pauseWriterThreshold was < -1 (due to the -1 check before it).

What I think you want is the else if below these lines to just be if instead.

adityamandaleeka · 2023-10-16T20:25:07Z

/azp run

azure-pipelines · 2023-10-16T20:25:13Z

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AaronRobinsonMSFT · 2023-10-20T03:01:26Z

The assert is firing.

System.IO.Pipelines.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing  
  Discovering: System.IO.Pipelines.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.IO.Pipelines.Tests (found 408 of 413 test cases)
  Starting:    System.IO.Pipelines.Tests (parallel test collections = on, max threads = 2)
Process terminated. Assertion failed.
ResumeWriterThreshold is less than 1
   at System.IO.Pipelines.Pipe.AdvanceReader(BufferSegment consumedSegment, Int32 consumedIndex, BufferSegment examinedSegment, Int32 examinedIndex) in /_/src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/Pipe.cs:line 503
   at System.IO.Pipelines.Pipe.AdvanceReader(SequencePosition& consumed, SequencePosition& examined) in /_/src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/Pipe.cs:line 463
   at System.IO.Pipelines.Pipe.AdvanceReader(SequencePosition& consumed) in /_/src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/Pipe.cs:line 450
   at System.IO.Pipelines.Pipe.DefaultPipeReader.AdvanceTo(SequencePosition consumed) in /_/src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/Pipe.DefaultPipeReader.cs:line 28
   at System.IO.Pipelines.Tests.PipeWriterTests.Read() in /_/src/libraries/System.IO.Pipelines/tests/PipeWriterTests.cs:line 24
   at System.IO.Pipelines.Tests.PipeWriterTests.CanWriteIntoHeadlessBuffer() in /_/src/libraries/System.IO.Pipelines/tests/PipeWriterTests.cs:line 82
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) in /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs:line 36
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 57
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/RuntimeMethodInfo.cs:line 127
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBase.cs:line 56
   at Xunit.Sdk.TestInvoker`1.CallTestMethod(Object testClassInstance) in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestInvoker.cs:line 150
   at Xunit.Sdk.TestInvoker`1.<>c__DisplayClass48_0.<<InvokeTestMethodAsync>b__1>d.MoveNext() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestInvoker.cs:line 257
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestInvoker`1.<>c__DisplayClass48_0.<InvokeTestMethodAsync>b__1()
   at Xunit.Sdk.ExecutionTimer.AggregateAsync(Func`1 asyncAction) in /_/src/xunit.execution/Sdk/Frameworks/ExecutionTimer.cs:line 48
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.ExecutionTimer.AggregateAsync(Func`1 asyncAction)
   at Xunit.Sdk.TestInvoker`1.<>c__DisplayClass48_0.<InvokeTestMethodAsync>b__0() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestInvoker.cs:line 242
   at Xunit.Sdk.ExceptionAggregator.RunAsync(Func`1 code) in /_/src/xunit.core/Sdk/ExceptionAggregator.cs:line 90
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.ExceptionAggregator.RunAsync(Func`1 code)
   at Xunit.Sdk.TestInvoker`1.InvokeTestMethodAsync(Object testClassInstance) in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestInvoker.cs:line 241
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestInvoker`1.InvokeTestMethodAsync(Object testClassInstance)
   at Xunit.Sdk.XunitTestInvoker.InvokeTestMethodAsync(Object testClassInstance) in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestInvoker.cs:line 112
   at Xunit.Sdk.TestInvoker`1.<RunAsync>b__47_0() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestInvoker.cs:line 206
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestInvoker`1.<RunAsync>b__47_0()
   at Xunit.Sdk.ExceptionAggregator.RunAsync[T](Func`1 code) in /_/src/xunit.core/Sdk/ExceptionAggregator.cs:line 107
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.ExceptionAggregator.RunAsync[T](Func`1 code)
   at Xunit.Sdk.TestInvoker`1.RunAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestInvoker.cs:line 189
   at Xunit.Sdk.XunitTestRunner.InvokeTestMethodAsync(ExceptionAggregator aggregator) in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestRunner.cs:line 84
   at Xunit.Sdk.XunitTestRunner.InvokeTestAsync(ExceptionAggregator aggregator) in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestRunner.cs:line 67
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.XunitTestRunner.InvokeTestAsync(ExceptionAggregator aggregator)
   at Xunit.Sdk.TestRunner`1.<>c__DisplayClass43_0.<RunAsync>b__0() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestRunner.cs:line 149
   at Xunit.Sdk.ExceptionAggregator.RunAsync[T](Func`1 code) in /_/src/xunit.core/Sdk/ExceptionAggregator.cs:line 107
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.ExceptionAggregator.RunAsync[T](Func`1 code)
   at Xunit.Sdk.TestRunner`1.RunAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestRunner.cs:line 149
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestRunner`1.RunAsync()
   at Xunit.Sdk.XunitTestCaseRunner.RunTestAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestCaseRunner.cs:line 139
   at Xunit.Sdk.TestCaseRunner`1.RunAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestCaseRunner.cs:line 82
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestCaseRunner`1.RunAsync()
   at Xunit.Sdk.XunitTestCase.RunAsync(IMessageSink diagnosticMessageSink, IMessageBus messageBus, Object[] constructorArguments, ExceptionAggregator aggregator, CancellationTokenSource cancellationTokenSource) in /_/src/xunit.execution/Sdk/Frameworks/XunitTestCase.cs:line 162
   at Xunit.Sdk.XunitTestMethodRunner.RunTestCaseAsync(IXunitTestCase testCase) in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestMethodRunner.cs:line 45
   at Xunit.Sdk.TestMethodRunner`1.RunTestCasesAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestMethodRunner.cs:line 136
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestMethodRunner`1.RunTestCasesAsync()
   at Xunit.Sdk.TestMethodRunner`1.RunAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestMethodRunner.cs:line 106
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestMethodRunner`1.RunAsync()
   at Xunit.Sdk.XunitTestClassRunner.RunTestMethodAsync(ITestMethod testMethod, IReflectionMethodInfo method, IEnumerable`1 testCases, Object[] constructorArguments) in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestClassRunner.cs:line 168
   at Xunit.Sdk.TestClassRunner`1.RunTestMethodsAsync()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestClassRunner`1.RunTestMethodsAsync()
   at Xunit.Sdk.TestClassRunner`1.RunAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestClassRunner.cs:line 171
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestClassRunner`1.RunAsync()
   at Xunit.Sdk.XunitTestCollectionRunner.RunTestClassAsync(ITestClass testClass, IReflectionTypeInfo class, IEnumerable`1 testCases) in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestCollectionRunner.cs:line 158
   at Xunit.Sdk.TestCollectionRunner`1.RunTestClassesAsync()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestCollectionRunner`1.RunTestClassesAsync()
   at Xunit.Sdk.TestCollectionRunner`1.RunAsync() in /_/src/xunit.execution/Sdk/Frameworks/Runners/TestCollectionRunner.cs:line 101
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine) in /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncMethodBuilderCore.cs:line 38
   at Xunit.Sdk.TestCollectionRunner`1.RunAsync()
   at Xunit.Sdk.XunitTestAssemblyRunner.RunTestCollectionAsync(IMessageBus messageBus, ITestCollection testCollection, IEnumerable`1 testCases, CancellationTokenSource cancellationTokenSource) in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestAssemblyRunner.cs:line 235
   at Xunit.Sdk.XunitTestAssemblyRunner.<>c__DisplayClass14_2.<RunTestCollectionsAsync>b__2() in /_/src/xunit.execution/Sdk/Frameworks/Runners/XunitTestAssemblyRunner.cs:line 184
   at System.Threading.Tasks.Task`1.InnerInvoke() in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Future.cs:line 501
   at System.Threading.Tasks.Task.<>c.<.cctor>b__281_0(Object obj) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:line 2387
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/ExecutionContext.cs:line 179
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:line 2345
   at System.Threading.Tasks.Task.ExecuteEntry() in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:line 2258
   at System.Threading.Tasks.SynchronizationContextTaskScheduler.<>c.<.cctor>b__8_0(Object s) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/TaskScheduler.cs:line 606
   at Xunit.Sdk.MaxConcurrencySyncContext.RunOnSyncContext(SendOrPostCallback callback, Object state) in /_/src/xunit.execution/Sdk/MaxConcurrencySyncContext.cs:line 106
   at Xunit.Sdk.MaxConcurrencySyncContext.<>c__DisplayClass11_0.<WorkerThreadProc>b__0(Object _) in /_/src/xunit.execution/Sdk/MaxConcurrencySyncContext.cs:line 96
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/ExecutionContext.cs:line 179
   at Xunit.Sdk.ExecutionContextHelper.Run(Object context, Action`1 action) in /_/src/xunit.execution/Sdk/Utility/ExecutionContextHelper.cs:line 110
   at Xunit.Sdk.MaxConcurrencySyncContext.WorkerThreadProc() in /_/src/xunit.execution/Sdk/MaxConcurrencySyncContext.cs:line 96
   at Xunit.Sdk.XunitWorkerThread.<>c.<QueueUserWorkItem>b__5_0(Object _) in /_/src/common/XunitWorkerThread.cs:line 37
   at System.Threading.Tasks.Task.InnerInvoke() in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:line 2405
   at System.Threading.Tasks.Task.<>c.<.cctor>b__281_0(Object obj) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:line 2387
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/ExecutionContext.cs:line 179
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:line 2345
   at System.Threading.Tasks.Task.ExecuteEntryUnsafe(Thread threadPoolThread) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task.cs:line 2283
   at System.Threading.Tasks.ThreadPoolTaskScheduler.<>c.<.cctor>b__10_0(Object s) in /_/src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/ThreadPoolTaskScheduler.cs:line 35
   at System.Threading.Thread.StartCallback() in /_/src/coreclr/System.Private.CoreLib/src/System/Threading/Thread.CoreCLR.cs:line 104

halter73

It looks like my comment from earlier was completely wrong. I must have gotten greater than and less than confused or something. I think @Turnerj is right about the else if.

src/libraries/System.IO.Pipelines/src/System/IO/Pipelines/PipeOptions.cs

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Updating unit tests and more concise logic in PipeOptions

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Additional Validation for PauseThresholdWriter and ResumeThresholdWriter#77359

Additional Validation for PauseThresholdWriter and ResumeThresholdWriter#77359
halter73 merged 6 commits intodotnet:mainfrom
cdbullard:thresholdwriter-validation

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