ce52a5631b
Revert "eliminate prefetch"
...
this breaks graceful shutdown. details TBD.
This reverts commit a474e79bf8967a573f05d07cee0b1abdbee4608a.
2021-07-13 15:15:16 -07:00
e33d6a049b
eliminate prefetch
...
looks like a premature optimization
2021-07-13 15:15:16 -07:00
abafdc6292
add TODO
2021-07-13 15:15:16 -07:00
934709fd7a
refactor out common write code
2021-07-13 15:15:16 -07:00
ba6c48c9e9
whitespace
2021-07-13 15:15:16 -07:00
72e8ab8781
port udp improvements to file
2021-07-13 15:15:16 -07:00
f355e685ef
aesthetic tweaks
2021-07-13 15:15:16 -07:00
385851de40
waitCompletion retry on EINTR
2021-07-13 15:15:16 -07:00
61cde40000
use syncs, start reworking file
2021-07-13 15:15:16 -07:00
0132d52e9a
make tests psas
2021-07-13 15:15:16 -07:00
ed0f50f924
split into several files
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file for file stuff
tun for tun stuff
udp for udp stuff
io_uring for general uring stuff
also make build tags suffice
2021-07-13 15:15:16 -07:00
dd94b37ef3
remove completed TODO
2021-07-13 15:15:16 -07:00
c7cd8a7bae
docs
2021-07-13 15:15:16 -07:00
5023b6b0c3
make ipv4/ipv6 code parallel
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and thus more clearly correct
weirdly, since it is using unsafe
2021-07-13 15:15:16 -07:00
152038cabd
simplify, docs
2021-07-13 15:15:16 -07:00
8a7b42a557
move code around
2021-07-13 15:15:16 -07:00
8478d34cca
doc and improve shutdown refcounting
2021-07-13 15:15:16 -07:00
f329d69fb4
docs
2021-07-13 15:15:16 -07:00
a1a2fb9181
more whitespace
2021-07-13 15:15:16 -07:00
4847a89ecf
spit. not so much polish.
2021-07-13 15:15:16 -07:00
58c556ad15
net/uring: add go ntohs
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Instead of calling out to C for ntohs, just implement it in Go for effiency.
Signed-off-by: kadmin <julianknodt@gmail.com>
2021-07-13 15:15:16 -07:00
334c09ab19
comment more
2021-07-13 15:15:16 -07:00
3e6e5a2eee
incorporate recvOut into recvReqs
2021-07-13 15:15:16 -07:00
6ec3378f7b
remove more dead code
2021-07-13 15:15:16 -07:00
385f86e85f
document, cull dead code
2021-07-13 15:15:16 -07:00
52ccff8835
WIP: clean shutdown for UDP conn
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this appears to work, most of the time.
there's lots of documentation work remaining,
thinking through the structure remaining,
testing remaining,
porting to file remaining (if appropriate).
2021-07-13 15:15:16 -07:00
2118b821cd
remove dead code
2021-07-13 15:15:16 -07:00
1e3e5fd8e7
overhaul error handling of peek/waitcompletion
2021-07-13 15:15:16 -07:00
e0d8dcf3eb
refactor
2021-07-13 15:15:16 -07:00
c1bc58defc
set sin_family (oops)
2021-07-13 15:15:16 -07:00
7cb1369b19
remove some TODOs, make ip address extraction equally awful
2021-07-13 15:15:16 -07:00
f274a0cfab
simplify change point
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at the cost of some very, very naughty unsafe
2021-07-13 15:15:16 -07:00
f71ff18c11
convert manual tests into automated tests
2021-07-13 15:15:16 -07:00
961a23b9df
tewak
2021-07-13 15:15:16 -07:00
f27a61502d
start cleaning up code
2021-07-13 15:15:16 -07:00
a98ed81f2e
ipv6 support, UNTESTED, super hacky
2021-07-13 15:15:16 -07:00
275cb37031
comments
2021-07-13 15:15:16 -07:00
9559752cb5
fix io_uring tun device reads
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Well that's an interesting one!
Apparently if you issue multiple concurrent preadv calls on
a TUN device using io_uring, the TUN device falls over.
Possibly corrupting memory along the way.
Which might be why the kernel hung on shutdown...
2021-07-13 15:15:16 -07:00
78dbd02718
make it easy to toggle uring on/off
2021-07-13 15:15:16 -07:00
4d58223422
switch file.go to test reads instead of writes
2021-07-13 15:15:16 -07:00
b05f305eaf
simpler init
2021-07-13 15:15:16 -07:00
e337ed2033
stick closer to upstream tun reading code
2021-07-13 15:15:16 -07:00
0fb656794c
make cgo pointer rules happy
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well that was a mess
2021-07-13 15:15:16 -07:00
283614d5e9
use io_uring for sendmsg
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and clean up some dead code and unify some things
2021-07-13 15:15:16 -07:00
11036e23a1
disable polling for now
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we'll maybe bring it back with a token bucket or something.
and/or do multi-sqe submission.
2021-07-13 15:15:16 -07:00
522fa9306e
they work with extra junk
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thanks, dave
no thanks, kernel devs
write no work
use writev
2021-07-13 15:15:16 -07:00
7fd5e31070
tun writes...not working yet (but why not??)
2021-07-13 15:15:16 -07:00
a03ee93e21
use polling instead of syscall
2021-07-13 15:15:16 -07:00
56ba714e10
smush together two return values from C
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avoids a per-packet alloc
i will atone for my sins later
if only C let you return multiple values.
or Go let you pass in a pointer w/o it being on the heap.
2021-07-13 15:15:16 -07:00
bb78cf81b6
keep 8 requests in the queue at all times
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
kadmin