Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.prolog > #13982

Re: Not being a Haskell programmer is trendy!

Show all headers | View raw

Its also proof of concept that no stack copying
is necessary. Well its not 100% true the Prolog
interpreter does a little bit unwind and rewind

during the '$YIELD'/1 instruction. But we do
nowhere copy some native stack, this is unlike
Martin Odersky's speculation, he might implement

someting with stack copying. Except that a virtual
threads might using a copying when they resize
their stack, I don't see any need for copying.

Also sometimes a callback can be piggy packed on
an existing coroutine if it doesn't yield itself,
I am already using this in Dogelog Player as an

optimization. The idea to use semaphores in my
implementation can be credited to this paper
from 1980 where semaphores are the main switchpoint:

Extension of Pascal and its Application to
Quasi-Parallel Programming and Simulation, Software -
Practice and Experience, 10 (1980), 773-789
J. Kriz and H. Sandmayr
https://www.academia.edu/47139332

But my experience with JDK 21 virtual threads
is still poor, I am only beginning to explore them
as a way to have a large number of coroutines.

Mild Shock schrieb:
> My revecent Async/Await surrogates for JDK 21
> provide coroutines with suspend/resume semantics.
> They are not continuations. They aim is to provide
> async/await and not only setTimeout().
> 
> As a result you don't need to write libraries
> with a continuation parameters. This is very unlike
> nonsense such as the JavaScript express web framework.
> 
> stackfulness
> In contrast to a stackless coroutine a stackful
> coroutine can be suspended from within a nested
> stackframe. Execution resumes at exactly the same
> point in the code where it was suspended before.
> 
> stackless
> With a stackless coroutine, only the top-level routine
> may be suspended. Any routine called by that top-level
> routine may not itself suspend. This prohibits
> providing suspend/resume operations in routines within
> a general-purpose library.
> https://www.boost.org/doc/libs/1_57_0/libs/coroutine/doc/html/coroutine/intro.html#coroutine.intro.stackfulness 
> 
> 
> Mild Shock schrieb:
>> Just watched 2 videos from Scala and the
>> year 2023 and nearly chocked on my yoghurt,
>>
>> especially when I saw the first presenter got a
>> headeache from early returns. LoL
>>
>> Async/Await for the Monadic Programmer
>> https://www.youtube.com/watch?v=OH5cxLNTTPo
>>
>> DIRECT STYLE SCALA Scalar Conference 2023
>> https://www.youtube.com/watch?v=0Fm0y4K4YO8
>>
>> Whats the bottom line: All because they discovered they
>> could do async/await as well?
> 

Back to comp.lang.prolog | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-02-02 20:46 +0100
  Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-02-02 21:00 +0100
    Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-02 12:50 -0800
      Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-07 03:25 -0800
    Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-11 14:34 -0800
      Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-11 14:39 -0800
        Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-14 06:45 -0800
          Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-14 06:53 -0800
  Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-14 13:29 -0800
    Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-14 13:33 -0800
  Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-02-21 01:27 +0100
    Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-02-21 01:28 +0100
      Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-02-21 01:30 +0100
        Re: Not being a Haskell programmer is trendy! Mild Shock <bursejan@gmail.com> - 2024-02-21 03:43 -0800
  Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-01 17:45 +0100
    Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-01 17:47 +0100
      Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-01 17:57 +0100
        Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-01 18:06 +0100
          Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-01 18:08 +0100
            Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-01 19:45 +0100
              Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-01 21:33 +0100
  Re: Not being a Haskell programmer is trendy! Mild Shock <janburse@fastmail.fm> - 2024-03-06 01:56 +0100

csiph-web