(PECL ev >= 0.2.0)
EvWatcher is a base class for all watchers( EvCheck , EvChild etc.). Since EvWatcher 's constructor is abstract , one can't(and don't need to) create EvWatcher objects directly.
Readonly
. TRUE
if the watcher is active. FALSE
otherwise.
User custom data associated with the watcher
Readonly
.TRUE
if the watcher is pending, i.e. it has outstanding events, but
its callback has not yet been invoked. FALSE
otherwise. As long, as a
watcher is pending(but not active), one must
not
change its priority.
Integer
between
Ev::MINPRI
and
Ev::MAXPRI
. Pending watchers with higher priority will be invoked before watchers
with lower priority, but priority will not keep watchers from being
executed(except for
EvIdle
watchers).
EvIdle
watchers provide functionality to suppress invocation when higher
priority events are pending.