FabInfra-Mirror/libs.capnproto-dotnetcore_Runtime
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Troubleshooting EmbargoServer TC

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This commit is contained in:
Christian Köllner 2019-08-20 19:39:51 +02:00
parent 5793f0a082
commit b23cc54491
1 changed files with 50 additions and 0 deletions
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50
Capnp.Net.Runtime/Rpc/Skeleton.cs
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@ -1,5 +1,6 @@
using Microsoft.Extensions.Logging; using Microsoft.Extensions.Logging;
using System; using System;
using System.Diagnostics;
using System.Runtime.CompilerServices; using System.Runtime.CompilerServices;
using System.Text; using System.Text;
using System.Threading; using System.Threading;
@ -28,6 +29,10 @@ namespace Capnp.Rpc
} }
} }
#if DEBUG
const int NoDisposeFlag = 0x4000000;
#endif
static readonly ConditionalWeakTable<object, Skeleton> _implMap = static readonly ConditionalWeakTable<object, Skeleton> _implMap =
new ConditionalWeakTable<object, Skeleton>(); new ConditionalWeakTable<object, Skeleton>();
@ -58,6 +63,29 @@ namespace Capnp.Rpc
return new SkeletonRelinquisher(GetOrCreateSkeleton(impl, true)); return new SkeletonRelinquisher(GetOrCreateSkeleton(impl, true));
} }
#if DEBUG
/// <summary>
/// This DEBUG-only diagnostic method states that the Skeleton corresponding to a given capability is not expected to
/// be disposed until the next call to EndAssertNotDisposed().
/// </summary>
/// <typeparam name="T">Capability interface</typeparam>
/// <param name="impl">Capability implementation</param>
public static void BeginAssertNotDisposed<T>(T impl) where T : class
{
GetOrCreateSkeleton(impl, false).BeginAssertNotDisposed();
}
/// <summary>
/// This DEBUG-only diagnostic method ends a non-disposal period started with BeginAssertNotDisposed.
/// </summary>
/// <typeparam name="T">Capability interface</typeparam>
/// <param name="impl">Capability implementation</param>
public static void EndAssertNotDisposed<T>(T impl) where T : class
{
GetOrCreateSkeleton(impl, false).EndAssertNotDisposed();
}
#endif
int _refCount = 0; int _refCount = 0;
/// <summary> /// <summary>
@ -75,11 +103,33 @@ namespace Capnp.Rpc
Interlocked.Increment(ref _refCount); Interlocked.Increment(ref _refCount);
} }
#if DEBUG
internal void BeginAssertNotDisposed()
{
if ((Interlocked.Add(ref _refCount, NoDisposeFlag) & NoDisposeFlag) == 0)
{
throw new InvalidOperationException("Flag already set. State is now broken.");
}
}
internal void EndAssertNotDisposed()
{
if ((Interlocked.Add(ref _refCount, -NoDisposeFlag) & NoDisposeFlag) != 0)
{
throw new InvalidOperationException("Flag already cleared. State is now broken.");
}
}
#endif
internal void Relinquish() internal void Relinquish()
{ {
int count = Interlocked.Decrement(ref _refCount); int count = Interlocked.Decrement(ref _refCount);
if (0 == count) if (0 == count)
{ {
#if DEBUG
Debug.Assert((_refCount & NoDisposeFlag) == 0, "Skeleton disposal not expected in this state");
#endif
Dispose(true); Dispose(true);
GC.SuppressFinalize(this); GC.SuppressFinalize(this);
} }