Question about threads

[Bradley Smith]

Ary Manzana wrote:
> Jari-Matti Mäkelä escribió:
>> Ary Manzana wrote:
>>
>>> class MyThread : Thread {
>>>
>>>     char fChar;
>>>     this(char c) {
>>>         fChar = c;
>>>     }
>>>         int run() {
>>>         while(true)
>>>             writef("%s", fChar);
>>>         return 0;
>>>     }
>>>     }
>>>
>>> void main(char[][] args) {
>>>     MyThread t1 = new MyThread('.');
>>>     MyThread t2 = new MyThread('!');
>>>         t1.start();
>>>     t2.start();
>>> }
>>> -----------------------------------------------
>>>
>>> Running the above program in Windows makes it crash (I get the "program
>>> X encountered a problem and must be closed" message). Why is this
>>> happenning?
>>
>> You probably have to end the execution of t1 and t2 before returning
>> from main().
> 
> Ok. So how can I implement this? It's strange for me that starting two 
> threads and exiting main ends the application, since there are other 
> threads alive.

Maybe something like this:

---------------------------
import std.thread;
import std.stdio;

class MyThread : Thread {

     bool running = true;
     char fChar;
     this(char c) {
         fChar = c;
     }

     int run() {
         while(running)
             writef("%s", fChar);
         return 0;
     }

     void stop() {
       running = false;
     }

}

void main(char[][] args) {
     MyThread t1 = new MyThread('.');
     MyThread t2 = new MyThread('!');

     t1.start();
     t2.start();
     t1.wait(5000);
     t1.stop();
     t2.stop();

}
---------------------------