The ugly part of Alertable IO is that you will always read (at least) one byte that you can't easily stuff back. I haven't found (by just reading the documentation, not by trying it out) a way that gives you just "you can read n bytes from this filehandle now" or "read as many bytes as are available without blocking" outside of PeekNamedPipe().

In reply to Re^4: [Win32] IO::Select's can_read method by Corion
in thread [Win32] IO::Select's can_read method by syphilis

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