handle_interrupt to defend monitor state [Bug #15992]
If an exception is raised from another thread for example Timeout
and this thread is just after mon_exit's @mon_owner = nil,
the exception breaks the state of MonitorMixin. To prevent that situation,
it need to block interruption in mon_enter and mon_exit.
Related issues
Bug #15992: An exception breaks monitor state and cause deadlock
Added by naruse (Yui NARUSE) almost 5 years ago
handle_interrupt to defend monitor state [Bug #15992]
If an exception is raised from another thread for example Timeout
and this thread is just after
mon_exit's@mon_owner = nil,the exception breaks the state of MonitorMixin. To prevent that situation,
it need to block interruption in mon_enter and mon_exit.