Ev::depth

The number of times Ev::run() was entered minus the number of times Ev::run() was exited normally, in other words, the recursion depth. Outside Ev::run() , this number is 0 . In a callback, this number is 1 , unless Ev::run() was invoked recursively (or from another thread), in which case it is higher.

ev_depth() returns recursion depth of the default loop.

Ev::iteration() -