/**
* Start the coroutine.
*
* @param StrandInterface $strand The strand that is executing the coroutine.
*/
public function call(StrandInterface $strand)
{
// If some of the strands have exited already, resume immediately ...
if ($this->exited) {
$strand->resumeWithValue($this->exited);
return;
}
// Otherwise, suspend the current strand until at least one strand exits ...
$this->strand = $strand;
$this->strand->suspend();
foreach ($this->substrands as $strand) {
$strand->on('exit', [$this, 'onStrandExit']);
}
}
