new argument passing conventions. minor type size cleanup.

further select refinements (from torek via karels)

a zero-valued timeout (which should poll and return) gets turned into
a one-tick timeout, and (worse) the amount of time to sleep is not
recomputed after each sleep. I.e., if the timeout is 10 sec,

a zero-valued timeout (which should poll and return) gets turned into
a one-tick timeout, and (worse) the amount of time to sleep is not
recomputed after each sleep. I.e., if the timeout is 10 sec, and
select is incorrectly after 9 sec, it will go back to sleep for up
to 10 sec. In fact, in the worst case it will never return. (from karels)

show more ...

size size_t is unsigned must check for overflow incrementally (from karels)

add USL's copyright notice

changes for 4.4BSD-Lite requested by USL

changes for 4.4BSD-Lite requested by USL

Cleanups for 4.4BSD-Lite

4.4BSD snapshot (revision 8.1); add 1993 to copyright

guard against negative fd counts in select

explicitly avoid sleeping forever in select

make kernel includes standard

ANSIfy syscall args; readv does not need ARGSUSED; no longer need
ugly __STDC__ hack

only need to block clock; volatile poisoning

select(2) race condition with small timeout values; bug net2/sys/11

minor optimization from torek

define new select interface, selrecord/selwakeup

cleanups for GCC, minor optimization in selscan

make file flags consistent

define selwait

add proc pointers to uio setup operations; inline expand fset/fioctl

rm user.h, OFILE*; seltrue needs ansified declaration

more-or-less working with new proc & user structs

add dynamically allocated file descriptors

lint