Thread names in Visual Studio and Mago

[Rainer Schuetze]

On 15/09/2019 20:11, Random D user wrote:
> I've been trying to set thread names for debugging, but it seems Mago
> just ignores all names.
> 
> Using WinAPI function SetThreadDescription() I can get thread name to
> show up in other programs (such as the very sleepy profiler), but not in
> Visual Studio and Mago debugger. I also tried the exception method as
> described here:
> https://docs.microsoft.com/en-us/visualstudio/debugger/how-to-set-a-thread-name-in-native-code?view=vs-2019

SetThreadDescription works for me (in VS2019).

If you are using the visualdproj project, do not use "Mago" as the
debugger, the "Visual Studio" debugger work better and have D support
through a mago based expression evaluator extension.

> 
> 
> core.thread.Thread also seems broken in terms of thread name. It seems
> to just set a local name for the thread, but not communicate that to the
> os. I suppose threads in Windows are nameless outside of debugging, so
> perhaps that was just a poor d-runtime design choice.
> Anyway, Mago doesn't seem to look up the d-runtime name either.
> 
> Is there a way to show thread names in Visual Studio Mago? or is it just
> unsupported.
> 
> Also it would be cool if the d runtime would name it's threads, so that
> it would be easier and faster to pick the correct one.
> 

Please report to https://issues.dlang.org/