Implement notifications about idle threads #995
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Description
Extend the
task_scheduler_observer
interface with two new methods:on_scheduler_idle()
, invoked when a thread does not have any tasks to run and fails to steal any other tasks, before it goes to sleep;on_scheduler_active()
, invoked when an idle thread finds a new task to run, after it wakes from sleeping.Extend the
observer_list
to notify all observer proxies about the idle and active thread states.Extend the
task_dispatcher
to notify about idle and active threads before and after they go to sleep.Fixes #992
Type of change
Tests
Documentation
Breaks backward compatibility
Does not break API compatibility, may break ABI compatibility for classes that inherit from
task_scheduler_observer
.Notify the following users
@pavelkumbrasev
Other information