Warner Losh once stated:
=In message <[EMAIL PROTECTED]> Mikhail Teterin writes:
=: Where does it guarantee that? Man-pages say, it is guaranteed to
=: sleep no MORE then the timeout, not less. Is there some other
=: specification, that's different from the man-pages, or are you
=: talking from the implementation point of view?
=
=The man pages say exactly:
= If timeout is a non-nil pointer, it specifies a maximum interval
= to wait for the selection to complete.
=
=Which doesn't say that it will sleep no more than this. It says that it
=will wait no longer than this for the selection to complete. It doesn't
=guarantee anything, imho. It doesn't guarnatee that you will be
=scheduled at any given time.
Yep. But that little, that I was told of implementation, says that
the rounding up is there to guarantee the sleep of no less then
specified. This is consistent with my experiments, which show steady
9-10 milliseconds extra sleeping time.
=Besides, POSIX's definition of select clearly states what I said.
This is what I asked for, when I asked for "other specification". Could
you provide the chapter/verse number of where POSIX spec contradicts the
man pages? It will help me make my case on the TCL forum, since the TCL
developers remain under the mistaken assumption, that select() may
return earlier, but never later than specified.
Thanks!
-mi
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