Joseph Doherty
7618cafb6c
- RemoveItem/Unregister evict value + write-completion caches (leak under churn) - ReadBulk snapshot path: add/advise all, one shared deadline, then tear down - alarm poll faults only after 3 consecutive failures; transient ones logged - AlarmCommandHandler disposes primary when standby build throws - StaRuntime pumps between queued work items - WRK-02: post-start STA loop death surfaces as StaHung WorkerFault - WRK-09: AppDomain unhandled-exception hook, exit code 7 - RETRIGGER documented as reserved, never synthesized - TST-05: live facts for Ping/GetSessionState/GetWorkerInfo/DrainEvents/ShutdownWorker
48 lines
1.5 KiB
C#
48 lines
1.5 KiB
C#
using System;
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using System.Threading;
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using ZB.MOM.WW.MxGateway.Worker.Sta;
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namespace ZB.MOM.WW.MxGateway.Worker.Tests.TestSupport;
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/// <summary>
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/// Test <see cref="IStaMessagePump"/> that counts pump calls and can be armed
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/// to throw from the next pump, so tests can observe the STA loop's pump
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/// interleaving and drive a post-start loop death without a real Win32
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/// message queue. The idle wait blocks on the command wake event exactly
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/// like the production pump's <c>MsgWaitForMultipleObjectsEx</c> does.
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/// </summary>
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internal sealed class ControllableMessagePump : IStaMessagePump
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{
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private int pumpCount;
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private Exception? throwOnNextPump;
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/// <summary>Gets the number of <see cref="PumpPendingMessages"/> calls so far.</summary>
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public int PumpCount => Volatile.Read(ref pumpCount);
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/// <summary>Arms the pump to throw <paramref name="exception"/> from its next pump call.</summary>
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/// <param name="exception">The exception to throw once.</param>
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public void ThrowOnNextPump(Exception exception)
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{
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Volatile.Write(ref throwOnNextPump, exception);
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}
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/// <inheritdoc />
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public void WaitForWorkOrMessages(WaitHandle commandWakeEvent, TimeSpan timeout)
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{
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commandWakeEvent.WaitOne(timeout);
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}
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/// <inheritdoc />
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public int PumpPendingMessages()
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{
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Interlocked.Increment(ref pumpCount);
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Exception? exception = Interlocked.Exchange(ref throwOnNextPump, null);
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if (exception is not null)
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{
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throw exception;
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}
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return 0;
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}
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}
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