Hello I have seen the wiki page
https://wiki.dlang.org/Event_system and would like to know the
current status. Is there a working group for this subject ? This
is a topic I'm interested in and did some modest work on some
years ago.
At the bottom of the wiki page there is an innocent question
regarding TLS which is quite devastating. A worker thread pool
system would not support affinity between threads and callback
context. Unfortunately, D relies on Thread Local Storage for semi
global data. This would be error prone. I saw such error case
with people using TLS with Corba.
One way out of this apparent deadlock is if D would provide its
own TLS that can be switched between threads. This would allow to
preserve affinity between threads and callback execution context.
Unfortunately, it would introduce an overhead to access the data
in the local storage due to the required indirection. It would
also require that the compiler is adapted.
When fibers and multithreading support is built in the language,
as in Go, the compiler can do the magic.
I would like to underline that the server side of software
development is the easiset side to conquer because the client
side as to many different GUIs and execution contexts. But it
requieres that the performances are on par with other languages
like C, C++, Go or Java.
- Async or event library chmike via Digitalmars-d-learn
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