"can_write" is actually short for "can write without blocking". If trying to write will immediately fail, then it won't block, which is what select cares about (and so makes "can write" true). Just like if reading will immediately fail because of end-of-stream or because of an error, then "can read" becomes true because trying to read won't block ("hang").

- tye        

In reply to Re^6: Pipes and IO::Select's method can_write() (blocking) by tye
in thread Pipes and IO::Select's method can_write() by almut

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