$ ./listen_async ${platfdir}/small_platform.xml "--log=root.fmt:[%10.6r]%e(%a@%h)%e%m%n"
> [  0.000000] (test@Tremblay) Task listen works on regular mailboxes
> [  0.000000] (test@Tremblay) Mailbox::listen_from() returns 1 (should return my pid, which is 1)
> [  0.000195] (test@Tremblay) Data successfully received from regular mailbox
> [  0.000195] (test@Tremblay) Task listen works on asynchronous mailboxes
> [  0.000195] (test@Tremblay) Data successfully received from asynchronous mailbox