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Comparing libev/ev.pod (file contents):
Revision 1.246 by root, Thu Jul 2 12:08:55 2009 UTC vs.
Revision 1.247 by root, Wed Jul 8 02:46:05 2009 UTC

… …
620happily wraps around with enough iterations. 620happily wraps around with enough iterations.
621 621
622This value can sometimes be useful as a generation counter of sorts (it 622This value can sometimes be useful as a generation counter of sorts (it
623"ticks" the number of loop iterations), as it roughly corresponds with 623"ticks" the number of loop iterations), as it roughly corresponds with
624C<ev_prepare> and C<ev_check> calls. 624C<ev_prepare> and C<ev_check> calls.
625
626=item unsigned int ev_loop_depth (loop)
627
628Returns the number of times C<ev_loop> was entered minus the number of
629times C<ev_loop> was exited, in other words, the recursion depth.
630
631Outside C<ev_loop>, this number is zero. In a callback, this number is
632C<1>, unless C<ev_loop> was invoked recursively (or from another thread),
633in which case it is higher.
634
635Leaving C<ev_loop> abnormally (setjmp/longjmp, cancelling the thread
636etc.), doesn't count as exit.
625 637
626=item unsigned int ev_backend (loop) 638=item unsigned int ev_backend (loop)
627 639
628Returns one of the C<EVBACKEND_*> flags indicating the event backend in 640Returns one of the C<EVBACKEND_*> flags indicating the event backend in
629use. 641use.

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