unpark new thread

[Thierry Delisle]

The following code would be convenient to have a bunch of threads "start at once"

thread MyThread { /*...*/ };
void main( MyThread & ) { park(); /*...*/ }

void foo() {
    MyThread mythreads[4];
    for(i; 4) {
        unpark(mythreads[i]);
    }
    /*...*/
}

This could be a little tricky because normally, park and unparks should be perfectly interleaved, but in this case "start, unpark, park" is similar enough to "unpark, unpark, park" that it might cause problems.

[Thierry Delisle <tdelisle@…>]

In ff79d5e:

Fixed park unpark to support park as first step of main()
Fixes #170

[Thierry Delisle <tdelisle@…>]

In ff79d5e:

Fixed park unpark to support park as first step of main()
Fixes #170

[Thierry Delisle <tdelisle@…>]

In ff79d5e:

Fixed park unpark to support park as first step of main()
Fixes #170