Date: Thu, 21 Nov 2002 12:31:26 -0700 From: "David G. Andersen" <danderse@cs.utah.edu> To: hackers@freebsd.org Subject: Changing socket buffer timeout to a u_long? Message-ID: <20021121123126.E75421@cs.utah.edu>
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Are there compelling reasons not to change the socket buffer
timeout to a u_long from a u_short? This variable stores
the number of ticks before the socket operation times out.
At present, the maximum SO_RCVTIMEO or SO_SNDTIMEO value one
can set is SHRT_MAX / hz. With a 100Hz kernel, this comes
to about 330 seconds, but with a 1000Hz kernel or faster,
it's reduced to under 1 minute, which tends to break some
apps when running on a high-hz kernel.
Particularly for weirdos who use HZ=10000 for dummynet purposes
and network measurement, increasing the storage to a u_long
would make life a bit happier for all sorts of code that wants
to set a 1 minute timeout.
-Dave (not on -hackers anymore, please CC)
--
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