dotnet/coreclr

This repo contains the .NET Core runtime, called CoreCLR. It is an execution engine for .NET apps, performing functions such as IL byte code loading, compilation to machine code and garbage collection. The repo contains the complete up-to-date CoreCLR codebase.

Hugh Gleaves

@Korporal

setting HttpWebRequest.Timeout seems to have no effect (hence its commented out in that code fragment above)

Michał Zegan

@webczat

so what's the problem with HttpClient instead?

Hugh Gleaves

@Korporal

Changing the above code to rely on HttpClient takes time that's all, and retesting and may itself uncover oddities.

that code returns an HttpWebRequest, that'll change so all callers must change etc etc.

Michał Zegan

@webczat

well HttpClient is really the way to go, it's an api designed differently etc, more composable for example

Hugh Gleaves

@Korporal

I'm sure its better Michal, no problem with that but our work these days is just non-stop jumping around, rewriting stuff over and over - as I said, whatever happened to the promise of "reuse" we we're lectured about by the OO and .Net gurus.

Michał Zegan

@webczat

well there is reuse. they didn't remove the old api :) if you really need it you can use it

but then if the api is too limited for use cases whatever then the only thing you can do is rewrite sometimes

Hugh Gleaves

@Korporal

In addition, since I have no real idea why the timeout occurs, it might not be in the HttpWebRequest area at all, until I rewrite the code and retest I won't know. If the timeout has some other cause (like for example ServicePoint details). If I rewrite yet continue to see the problem, all of the time spent studying HttpClient and rewriting the code is a total waste of resources.

All too often we hear "Well just use XXX" as if this were a five minute tweak, it often isn't and the costs, time, impact is huge - this is especially true of fixed deadline projects (which I hasten to add, "agile" is utterly useless for).

Sorry to gripe, but this is what development has become.

I have hard deadlines of Dec 1 for a bunch of stuff, hitting fixed deadlines requires planning something agile is weak at (because - incorrectly - the term "planning" is taken to mean "waterfall" which is not true).

Hugh Gleaves

@Korporal

Is PresentationCore.dll part of .Net Std ?

Jesper Hansen

@jespersh

@Korporal no, it is windows specific for wpf

Joseph Musser

@jnm2

@Korporal Did you try my suggestion of setting Connection: close instead of the default keep-alive header that HttpWebRequest adds? That solved the timeouts for me. Then I moved to HttpClient anyway.

Hugh Gleaves

@Korporal

Hi, no actually, I didn't see you post that - I will perhaps try that later, many thanks

Joseph Musser

@jnm2

@Korporal :point_up: October 16, 2020 6:55 PM

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Hugh Gleaves

@Korporal

I have a question, when I create a console app I can use Console class methods to interact with the user or within an existing command window a user can invoke my app as a command. Is there a similar thing for power shell? Can I write an app that interacts with the user in a power shell command window? for example could I position the cursor, prompt for keyboard input and so on...

I've barely ever used powershell, seems I can invoke a .exe in power shell, if I prefix with .\myapp.exe it runs and can manage cursor and KB input exactly as the ordinary cmd window does...

HaloFour

@HaloFour

cmd.exe and powershell.exe are just console apps, the OS provides the console window

Joseph Musser

@jnm2

Yes, conhost.exe

Hugh Gleaves

@Korporal

I see, yes a console app (once invoked) can interact with the user in the same way whether its invoked from a command window or a power shell window.

the same cursor control code behaves identically.

Joseph Musser

@jnm2

The new Windows Terminal is my console host of choice.

Before that, ConEmu

Egil Hansen

@egil

Hey folks, I cannot figure out what version number to pass to GitHub Actions actions/setup-dotnet@v1 to get 5.0.0-rc.2 installed. Anybody knows?

Joseph Musser

@jnm2

Perhaps 5.0.100-rc.2.20479.15 ("full version" from https://dotnet.microsoft.com/download/dotnet/5.0)?

lukaepti

@lukaepti

How do I find out the path to coreclr and dotnet sdk on Linux+GNU?

John Cullen

@john-cullen

Is there a good resource for reading about how Assembly loading works?

Brent Arias

@brentarias

@john-cullen I learned originally from Jeffrey Richter when he was writing back in the .Net 3.5 days-ish. For .net core the fusion log viewer I don't think works...but I know there is an environment variable you can set that will cause .net core to start spewing out TONS of log info to console-out that tells you in nauseating detail what assemblies it is loading and where it is searching for them.

Brent Arias

@brentarias

If I have a JSON blob like this:

{
 'foo' : {'hey' : 40},
 'boo' : {'there' :50}
}

...what is the fastest way to load this into a dictionary<string,string> with entries like "foo":"{'hey' :40}". So ya, I don't want the object value de-serialized...I want it kept as a string.

Joseph Musser

@jnm2

I think the new .NET Core JSON APIs let you obtain objects as strings and UTF-8 byte spans, but I don't remember how you would do it.

Alex Yakunin

@alexyakunin

Just want to thank anyone who worked on .NET 5 - the perf. boost I see so far is beyond any expectations: https://twitter.com/alexyakunin/status/1326438626901729280

ChinnasamyM

@ChinnasamyM

Yes. Great and awesome efforts. Thanks @alexyakunin for pointing out this. Good explanatory samples

Edinei Cavalcanti

@neiesc

@alexyakunin thanks

Chris Ochs

@gamemachine

What is the idiomatic way to log by application feature? Using Microsoft.Extensions.Logging but in a very custom server setup. So we have an AppLogger class with static methods that proxy to the system wide logger. We have no good reason for separate logger instances. So I threw together a LogScoped method that takes an AppLogScope enum. That grabs a LogLevel constant defined for the scope.

DI would be nice but it's not so simple, multiple context's we would have to create injectors for. So atm DI for logging just not a good bang for buck

Chris Delpire

@Delpire

If I have a .NET Core exe referencing a .NET Framework Dependency, and that .NET framework dependency has another .NET framework dependency, is it possible to redirect that 3rd dependency. We can't use GAC/policy files, but is there some kind of file I can use to do a .NET Framework assembly binding redirect even if I am running in .NET Core 3.1?

Hugh Gleaves

@Korporal

If I install this later, will it automatically also install .Net 5? provide me with C# 9 support?

https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes#16.8.1

Carlo Kok

@carlokok

Does anyone know if the runtime actively will block a byref<sometype> in a struct / class or if it's working (unsafely of course)?

Joe4evr

@Joe4evr

you mean as a field?

if so, then yes it'll be blocked, because there is no way to actually express that in IL today

the runtime team has been wanting to introduce something in that space for some time now, and the lang team has just put the corresponding feature in the 10.0 Working Set (which isn't a guarantee of anything, but it does mean they're going to look into it)

Joe4evr

@Joe4evr

also, should the feature make it in next release, then it wouldn't even require unsafe, but it will be limited to use in ref structs (since the compiler needs to guarantee the wrapper object doesn't outlive the ref it points to)

Carlo Kok

@carlokok

hm? Surely you can express it?

Joe4evr

@Joe4evr

nope https://github.com/dotnet/csharplang/issues/1147#issuecomment-347074271

Span uses an internal type for a hack workaround, but the runtime team wants to remove that implementation detail

Carlo Kok

@carlokok

hrmm that's nasty. I expected the typesig for byref to just work here.

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