Dmitry Khominich f1ab9c738e introduce waker and wait_queue abstractions. fixes #251, #259 ...

* remove context::wait_hook_ and context::twstatus in flavor to waker_epoch_ and waker class
* this avoids data races in case of wait_until() operations, when the context
  could be timeouted and rescheduled on the other OS thread. In this case could
  be data races with context::wait_hook_ and inconsistences context::twstatus
  states.
* using context::waker_epoch_ introduces mechanism when the old wakers become
  outdated and waker::wake() is just no op. This fixes data races explained in
  the previous point
* fibers waiting queue with timeouts and notification mechanisms are incapsulated into
  wait_queue class. This introduces simple abstraction level to be used in
  different synchronization primitives

2020-10-14 17:15:07 +03:00

..

Jamfile.v2

introduce waker and wait_queue abstractions. fixes #251, #259

2020-10-14 17:15:07 +03:00