Actually the only guarantee for writing is 1 byte (supposing you don't get an error) so if you try to write more you might block, that's why if you don't want to be blocked you need to go all the way to non-blocking handles (which is never easy as you have to deal with partial writes).

If I need to go non-blocking I usually use a variation on Lincoln's Stein IO::SessionData and IO::SessionSet. Sadly they are packaged with SOAP::Lite, and having "godzilla" as a prerequesite is no fun ;) IO::Multiplex is also interesting.

hth --stephan

In reply to Re^7: Pipes and IO::Select's method can_write() (blocking) by sgt
in thread Pipes and IO::Select's method can_write() by almut

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