urbit/pkg/arvo/gen/stale-flows.hoon
2023-02-10 16:13:28 +01:00

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:: +stale-flows: prints number of ames flows that can be closed
::
:: |stale-flows, =veb %1 :: flows from nacking initial subscriptions
:: |stale-flows, =veb %2 :: stale flows that keep (re)trying to connect
:: |stale-flows, =veb %21 :: ... per app (only forward)
:: |stale-flows, =veb %3 :: stale resubscriptions
::
=> |%
+$ subs (jar path [ship bone @])
+$ pags (jar app=term [dst=term =ship =path]) :: per-agent
+$ naks (set [ship bone])
:: verbosity
::
+$ veb ?(%0 %1 %2 %21 %3 %31)
::
++ resubs
|= [=subs =veb]
^- @
::=/ sorted
:: %+ sort ~(tap by subs)
:: |=([a=(list *) b=(list *)] (lte (lent a) (lent b)))
%+ roll ~(tap by subs)::sorted
|= [[k=path v=(list [ship bone @])] num=@]
~? &(=(%3 veb) (gth (lent v) 1))
"#{<(dec (lent v))>} stale resubs on {<k>}"
?. (gth (lent v) 1) num
(add (dec (lent v)) num)
--
::
:- %say
|= $: [now=@da eny=@uvJ bec=beak]
[arg=~ dry=? =veb]
==
::
=/ peers-map
.^((map ship ?(%alien %known)) %ax /(scot %p p.bec)//(scot %da now)/peers)
::
=/ peers=(list ship)
%+ murn ~(tap by peers-map)
|= [=ship val=?(%alien %known)]
?: =(ship p.bec)
~ :: this is weird, but we saw it
?- val
%alien ~
%known (some ship)
==
::
=; [[=subs =pags backward=@ forward=@] =naks]
:- %tang %- flop
%+ weld
:~ leaf+"#{<~(wyt in naks)>} flows from %nacking %watches"
leaf+"#{<backward>} live backward flows with (keep retrying)"
leaf+"#{<forward>} live forward flows with (keep retrying)"
leaf+"#{<(resubs subs veb)>} stale resubscriptions"
==
?. =(%21 veb) ~
:- leaf+"----------------------------------"
%+ turn %+ sort ~(tap by pags)
|= [[* v=(list)] [* w=(list)]]
(gth (lent v) (lent w))
|= [app=term v=(list [dst=term =ship =path])]
:- %leaf
%+ weld "#{<(lent v)>} flows for {<app>} with >10 retries"
?. =(1 (lent v)) ~
?> ?=(^ v)
" on {<ship.i.v>} to {<dst.i.v>} at {<path.i.v>}"
::
%+ roll peers
|= [=ship [=subs p=pags b=@ f=@] n=naks]
=+ .^ =ship-state:ames
%ax /(scot %p p.bec)//(scot %da now)/peers/(scot %p ship)
==
=/ =peer-state:ames ?>(?=(%known -.ship-state) +.ship-state)
::
|^ [stale nacks]
::
++ stale
%+ roll ~(tap by snd.peer-state)
|= $: [=bone message-pump-state:ames]
subs=_subs pags=_p
backward=_b forward=_f
==
=, packet-pump-state
:- ?~ duct=(~(get by by-bone.ossuary.peer-state) bone) subs
?. ?=([* [%gall %use sub=@ @ %out @ @ nonce=@ pub=@ *] *] u.duct)
subs
=/ =wire i.t.u.duct
=/ nonce=(unit @) (rush i.t.t.t.t.t.t.t.i.t.u.duct dem)
%- ~(add ja subs)
:_ [ship bone ?~(nonce 0 u.nonce)] :: 0, 1?
?~ nonce wire
:: don't include the sub-nonce in the key
::
(weld (scag 7 wire) (slag 8 wire))
%+ roll ~(tap in live)
|= $: [[msg=@ frag=@] [packet-state:ames *]]
pags=_pags
out=[b=_backward f=_forward]
==
::
:: only forward flows
::
=? pags &(=(0 (end 0 bone)) (gth retries 10))
?~ duct=(~(get by by-bone.ossuary.peer-state) bone)
pags
?. ?=([* [%gall %use sub=@ @ %out @ @ nonce=@ pub=@ *] *] u.duct)
pags
=/ =wire i.t.u.duct
(~(add ja pags) (snag 2 wire) (snag 8 wire) ship (slag 9 wire))
::
~? &(=(%2 veb) (gth retries 10))
=+ arrow=?:(=(0 (end 0 bone)) "<-" "->")
=+ closing=(~(has in closing.peer-state) bone)
%+ weld "{arrow} ({(cite:title ship)}) bone=#{<bone>} "
"closing={<closing>} msg=#{<msg>} frag=#{<frag>} #{<retries>}"
:- pags
=? out (gth retries 10)
?: =(0 (end 0 bone))
[b.out +(f.out)]
[+(b.out) f.out]
out
::
++ nacks
%+ roll ~(tap by rcv.peer-state)
|= [[=bone *] nacks=_n]
?. &(=(0 (end 0 bone)) =(1 (end 0 (rsh 0 bone))))
:: not a naxplanation ack bone
::
nacks
:: by only corking forward flows that have received
:: a nack we avoid corking the current subscription
::
=+ target=(mix 0b10 bone)
:: make sure that the nack bone has a forward flow
::
?~ duct=(~(get by by-bone.ossuary.peer-state) target)
nacks
?. ?=([* [%gall %use sub=@ @ %out @ @ nonce=@ pub=@ *] *] u.duct)
nacks
=/ =wire i.t.u.duct
?> ?=([%gall %use sub=@ @ %out @ @ nonce=@ pub=@ *] wire)
=/ app=term i.t.t.wire
=/ nonce=@
=- ?~(- 0 u.-)
(rush i.t.t.t.t.t.t.t.wire dem)
=/ =path t.t.t.t.t.t.t.t.wire
~? =(%1 veb) "[bone={<target>} nonce={<nonce>} agent={<app>}] {<path>}"
(~(put in nacks) [ship target])
--