This package contains the modules io::sessiondata and io::sessionset which deal with non-blocking i/o.

io::sessiondata is a wrapper around io::socket handling e.g. partial writes. io::sessionset is similar to io::select. it handles multiple io::sessiondata objects offers the ability to buffer partial writes.

for a detailed documentation, cf. the original author's book:
lincoln d. stein: network programming with perl.
addison-wesley, 2001, pp. 371.