• Joshua Niehus (31/31) Jan 22 2013 Is it possible to create a shared signal class?
• Joshua Niehus (5/6) Jan 22 2013 oh god... dont tell me __gshared !
• Jonathan M Davis (8/16) Jan 23 2013 shared still needs to be sorted out. The basic idea is solid, but the de...

"Joshua Niehus" <jm.niehus gmail.com> writes:

Is it possible to create a shared signal class?
I  would like to create a shared signal class so some other 
process that knows certain things can come along emit its info to 
any observer:

import std.stdio, std.signals;

class Observer {
     void watch(string msg) {
         writeln(msg);
     }
}

class Foo {
     string value() {
         return _value;
     }

     string value(string v) {
         if (v != _value) {
             _value = v;
             emit(_value);
         }
         return v;
     }

     mixin Signal!(string);

private:
     string _value;
}

shared Foo a;
void main() {
     a = new shared Foo();
     Observer o1 = new Observer();
     a.connect(&o1.watch);
}

"Joshua Niehus" <jm.niehus gmail.com> writes:

On Wednesday, 23 January 2013 at 07:11:59 UTC, Joshua Niehus 
wrote:
 Is it possible to create a shared signal class?

oh god... dont tell me __gshared !
Think i answered my own question, it got me to the next step.  
going to have to read through those giant "shared" threads again

Jonathan M Davis <jmdavisProg gmx.com> writes:

On Wednesday, January 23, 2013 08:17:57 Joshua Niehus wrote:
 On Wednesday, 23 January 2013 at 07:11:59 UTC, Joshua Niehus
 
 wrote:
 Is it possible to create a shared signal class?

 
 oh god... dont tell me __gshared !
 Think i answered my own question, it got me to the next step.
 going to have to read through those giant "shared" threads again

shared still needs to be sorted out. The basic idea is solid, but the details 
need work. Right now, you basically have to cast it to thread-local all over 
the place to do much of anything with shared variable (obviously requiring 
that you protect that code with a mutex or synchronized block or whatnot so 
that it's thread-safe). It's not clear at this point what exactly we're going 
to do to improve shared.

- Jonathan M Davis