Threading bugs

[Tristam MacDonald]

And score 10 for forgetting to explain the problem :)

Anyway, this code sample should print "starting", star a thread that exits immediately, and finally print "ending" as the destructor is called at program termination.
Instead, it prints "starting" and then does nothing - or more precisely hogs the entirety of only one of my 2 cores - and never exits.

BTW, this is using gdc on a Mac (latest release of gdcmac), so could be a pthread specific problem perhaps?

Tristam MacDonald Wrote:

> So, I am sure that I must be missing something simple, that is causing my multi-threading code in D fail miserably. I have cut it down to the smallest code sample that exhibits the problem, and I would be grateful if someone could have a look and let me know why...
> 
> import std.thread;
> import std.stdio;
> 
> class Main
> {
> 	this() {
> 		writefln("starting");
> 
> 		Thread worker = new Thread(&workerMain);
> 		worker.start();
> 	}
> 	~this() {
> 		writefln("ending");
> 	}
> 	
> 	int workerMain()
> 	{
> // -- disabled in case of deadlock in std.format, but never reached anyway
> //		writefln("In Thread");
> 		return 0;
> 	}
> 	
> 	Thread worker;
> }
> 
> int main()
> {
> 	Main m = new Main();
> 		
> 	return 0;
> }
> 
> 
>