File size: 1,626 Bytes
8c763fb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | // Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
#if !UNIX
namespace System.Management.Automation.Tracing
{
using System;
internal class EtwActivityReverterMethodInvoker :
IMethodInvoker
{
#region Instance Data
private readonly IEtwEventCorrelator _eventCorrelator;
private readonly Func<Guid, Delegate, object[], object> _invoker;
#endregion
#region Creation/Cleanup
public EtwActivityReverterMethodInvoker(IEtwEventCorrelator eventCorrelator)
{
ArgumentNullException.ThrowIfNull(eventCorrelator);
_eventCorrelator = eventCorrelator;
_invoker = DoInvoke;
}
#endregion
#region Instance Access
public Delegate Invoker
{
get { return _invoker; }
}
public object[] CreateInvokerArgs(Delegate methodToInvoke, object[] methodToInvokeArgs)
{
// See DoInvoke method for what these args mean.
var retInvokerArgs = new object[]
{
_eventCorrelator.CurrentActivityId,
methodToInvoke,
methodToInvokeArgs,
};
return retInvokerArgs;
}
#endregion
#region Instance Utilities
private object DoInvoke(Guid relatedActivityId, Delegate method, object[] methodArgs)
{
using (_eventCorrelator.StartActivity(relatedActivityId))
{
return method.DynamicInvoke(methodArgs);
}
}
#endregion
}
}
#endif
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