D2 Singleton / Thread Local Storage issue

[sybrandy]

Hello,

I've been learning D for some time now and I recently was trying to do 
some work with threads, but I'm having a problem getting it to work. 
I'm trying to create a singleton that can be accessed between threads, 
however I get an access violation when I try to run the following code. 
  If I make the variable "instance" shared, I get a compilation error. 
Is there something I'm missing?

Thanks in advance.

Casey

> import std.stdio;
> import core.thread;
> 
> class Simple
> {
>     string buff;
> 
>     public:
> 
>         static Simple instance;
> 
>         void setMsg(string msg)
>         {
>             buff ~= msg;
>         }
> 
>         string getMsg()
>         {
>             string temp = buff.idup;
>             buff.length = 0;
>             return temp;
>         }
> 
>     private:
>         this() {}
> 
>         static this() { instance = new Simple; }
> }
> 
> class ThrTest : Thread
> {
>     this()
>     {
>         super(&run);
>     }
> 
>     private:
> 
>         void run()
>         {
>             auto var = Simple.instance;
>             var.setMsg("foo");
>             writeln("message: " ~ var.getMsg());
>         }
> }
> 
>     void main()
>     {
>         Thread t = new ThrTest();
>         t.start();
>         t.join();
>         writeln("Finished testing Simple.d");
>     }