This module collection manages coroutines. Coroutines are similar to
threads but don't run in parallel.

In this module, coroutines are defined as "callchain + lexical variables
+ @_ + $_ + $@ + $^W + C stack), that is, a coroutine has its own
callchain, its own set of lexicals and its own set of perl's most
important global variables.

Author: Marc Lehmann <pcg@goof.com>
WWW: http://search.cpan.org/dist/Coro/