[perl][Coro][jump]
setjmp/longjmpってなんだよってことでみた。
These basically allow you to capture the current point execution and jump to another point, while allowing you to return at any time, as kind of non-local jump, not unlike C's setjmp/longjmp.
http://search.cpan.org/~mlehmann/Coro-5.161/Coro/Intro.pod
関数間でとべるのね。
参考