(PECL ev >= 0.2.0)
EvLoop::loopFork — Must be called after a fork
   Must be called after a
   fork
   in the child, before entering or continuing the event loop. An alternative
   is to use
   Ev::FLAG_FORKCHECK
   which calls this function automatically, at some performance loss (refer to
   the
   » libev
  documentation
   ).
  
This function has no parameters.
No value is returned.