(PECL ev >= 0.2.0) Make a single, non-blocking sweep over the embedded loop.

(PECL ev >= 0.2.0) Establishes the current time by querying the kernel, updating the time returned by Ev::now

(PECL ev >= 0.2.0) Clear watcher pending status

(PECL ev >= 0.2.0) Configures the watcher

(PECL ev >= 0.2.0) Creates EvChild object associated with the current event loop

(PECL ev >= 0.2.0) Constructs the EvChild watcher object

(PECL ev >= 0.2.0) Configures the watcher

(PECL ev >= 0.2.0) Create a stopped EvStat watcher object

(PECL ev >= 0.2.0) Returns the current "event loop time"

(PECL ev >= 0.2.0) Constructs EvStat watcher object