(PECL ev >= 0.2.0) Simply stops and restarts the periodic watcher again.
(PECL ev >= 0.2.0) Create a stopped EvPeriodic watcher
(PECL ev >= 0.2.0) Returns the absolute time that this watcher is supposed to trigger next
(PECL ev >= 0.2.0) Constructs EvPeriodic watcher object
(PECL ev >= 0.2.0) Configures the watcher