Acquire the attention lock, but without interrupting any poll that's in progress (prefer to fail in that case).

Process queued events; returns true if any events were processed. limit - maximum number of events to process before returning; -1 for no limit.

Process monotonic timers based on the current clock time.

Process timers based on the current clock time. If any timers have expired, set do_wait to false; otherwise, if any timers are pending, set ts to the

* pselect_events constructor. * * Throws std::system_error or std::bad_alloc if the event loop cannot be initialised. */

If events are pending, process an unspecified number of them. If no events are pending, wait until one event is received and process this event (and p

If events are pending, process an unspecified number of them. If no events are pending, wait until one event is received and process this event (and p

If events are pending, process an unspecified number of them. If no events are pending, wait until one event is received and process this event (and p

If events are pending, process an unspecified number of them. If no events are pending, wait until one event is received and process this event (and p

Pull a signal from pending, and report it, until it is no longer pending or the watch should be disabled. Call with lock held. Returns: true if watch

Note, called with lock held:

Note, called with lock held:

Child process terminated. Called with both the main lock and the reaper lock held.

Release the poll-wait/attention lock.

Remove watcher from the queueing system