Question

I am trying to resolve a TimeSpan using Unity. Executing the container Resolve call results in a FatalExecutionEngineError.

FatalExecutionEngineError was detected
Message: The runtime has encountered a fatal error. The address of the error was at 0x543c3dc8, on thread 0x1bb8. The error code is 0xc0000005. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code. Common sources of this bug include user marshaling errors for COM-interop or PInvoke, which may corrupt the stack.

Running the test in DEBUG causes the following file to be requested by the debugger.

X:\Unity\Src\ObjectBuilder\Strategies\BuildPlan\DynamicMethod\DynamicMethodBuildPlan.cs

And it shows the following ExecutionEngineException on line 38.

System.ExecutionEngineException was unhandled
Message=”Exception of type ‘System.ExecutionEngineException’ was thrown.”
InnerException:

Test

[TestClass]
public class Example
{
    private readonly IUnityContainer container = new UnityContainer();

    [TestInitialize]
    public void TestInitialize()
    {
        container.Register<TimeSpan>(new ExternallyControlledLifetimeManager());
    }

    [TestMethod]
    public void Test()
    {
        var expected = new TimeSpan();
        var actual = container.Resolve<TimeSpan>();
        Assert.AreEqual(expected, actual);
    }
}

Answer 1

I’m not sure why you get the error, but I tried to replace the type configuration (in the configuration file you edited out) with the following it works.

<instances>
   <add name="MyTimeSpan" type="System.TimeSpan" value="1.02:03:04"  />
</instances>

var duration = container.Resolve<TimeSpan>("MyTimeSpan");

The above should return a timespan with a duration of 1 day, 2 hours, 3 minutes and 4 seconds.

(I tried this with Unity 4.1)