oaz / femyou Goto Github PK

loading and running fmi-standard FMUs in dotnet core

License: MIT License

Shell 0.19% C# 99.81%

femyou's Issues

A callback was made on a garbage collected delegate

After running my simulation loop for a short while (setting inputs - AdvanceTime - reading outputs)the program crashes with this error:

Process terminated. A callback was made on a garbage collected delegate of type 'Femyou!Femyou.FMI2+fmi2StepFinished::Invoke'.
   at Femyou.Instance.AdvanceTime(Double)

Turns out that this happens when the garbage collector kicks in. If I call GC.Collect in my simulation loop I get the error immediately.

If I debug the program in Visual Studio it catches a ExecutionEngineException with no call stack.

Error | fmi2Instantiate : Handle is not intialised

fmi2Instantiate : Handle is not intialised

Not posible to load 32-bit FMU on 64 bit Windows

The library only tries to load 64-bit DLLs on 64 bit Windows, but it is possible to run both 32-bit and 64 bit code on Windows. The library should check if the current process is 32 bit or 64 bit

https://stackoverflow.com/a/1953411/1688642

if (IntPtr.Size == 4)
{
    // 32-bit
}
else if (IntPtr.Size == 8)
{
    // 64-bit
}

The issus is in the constructor of the Librarys class:

Femyou/src/internal/Library.cs

Line 9 in 56c94bb

    
           public Library(string baseFolder, string name) : this(Platform.GetLibraryPath(Environment.OSVersion.Platform,Environment.Is64BitOperatingSystem,baseFolder,name))