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shrub/pkg/base-dev/lib/sss.hoon
~wicrum-wicrun 92849f3e8f sss: $rule is now horizon and frequency
2023-07-03 15:53:42 +02:00

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/- *sss
/+ *mip
::
|%
++ mk-subs :: Create sub-map.
|* [=(lake) paths=mold]
-:+6:(da lake paths)
::
++ mk-pubs :: Create pub-map.
|* [=(lake) paths=mold]
-:+6:(du lake paths)
::
++ mk-mar :: Create mar.
|* =(lake)
|_ =(response:poke lake *)
++ grow
|%
++ noun response
--
++ grab
|%
++ noun (response:poke lake *)
--
++ grad %noun
--
++ fled :: Like +sped but head is a path.
|= vax=vase
^- vase
:_ q.vax
%- ~(play ut p.vax)
=- [%wtgr [%wtts - [%& 2]~] [%$ 1]]
=/ pax ~| %path-none ;;(path -.q.vax)
|- ^- spec
?~ pax [%base %null]
[%bccl ~[[%leaf %ta -.pax] $(pax +.pax)]]
::
++ zoom |= =noun ~| %need-path $/sss/;;(path noun)
::
++ da :: Manage subscriptions.
|* [=(lake) paths=mold]
=>
|%
+$ from (on-rock:poke lake paths)
+$ into (response:poke lake paths)
+$ result (request:poke paths)
+$ fail [paths ship dude]
+$ flow [=aeon stale=_| fail=_| =rock:lake]
+$ subs [%0 (map [ship dude paths] (unit flow))]
--
|= $: sub=subs
=bowl:gall
result-type=type
on-rock-type=type
fail-type=type
==
=> .(sub +.sub)
|%
++ surf :: Subscribe to [ship dude path].
|= which=[ship dude paths]
^- (quip card:agent:gall subs)
?+ flow=(~(get by sub) which) `0/sub
~ [~[(pine which)] 0/(~(put by sub) which ~)]
[~ ~] [~[(pine which)] 0/sub]
[~ ~ [* %& * *]] [~[(pine which)] 0/sub]
==
++ quit (corl (lead %0) ~(del by sub)) :: Unsub from [ship dude path].
++ read :: See current subscribed states.
^- (map [ship dude paths] [stale=? fail=? =rock:lake])
%- malt %+ murn ~(tap by sub)
|= [key=[ship dude paths] val=(unit flow)]
?~ val ~
`[key +.u.val]
:: :: Check poke-ack for errors.
:: :: If an %sss-on-rock poke nacks,
++ chit :: that state is flagged as failed.
|= [[aeon=term ship=term dude=term path=paths] =sign:agent:gall]
^- subs
:- %0
?> ?=(%poke-ack -.sign)
?~ p.sign sub
%+ ~(jab by sub) [(slav %p ship) dude path]
|= (unit flow)
=/ =flow (need +<)
?> =(aeon.flow (slav %ud aeon))
`flow(fail &)
:: :: Check poke-ack for errors.
:: :: If a scry request nacks,
++ tell :: that state is flagged as stale.
|= [[ship=term =dude aeon=term path=paths] =sign:agent:gall]
^- (quip card:agent:gall subs)
?> ?=(%poke-ack -.sign)
?~ p.sign `0/sub
=/ current [ship=(slav %p ship) dude=dude path=path]
?+ flow=(~(get by sub) current) `0/sub
[~ ~ *]
=. stale.u.u.flow &
:_ 0/(~(put by sub) current u.flow)
~[(on-rock-poke fake=& current u.u.flow ~)]
::
[~ ~]
:_ 0/(~(del by sub) current) :_ ~
:* %pass (zoom surf-fail/aeon/ship/dude/path)
%agent [our dap]:bowl
%poke %sss-surf-fail fail-type ^- fail
[path ship dude]:current
==
==
++ apply :: Handle response from publisher.
|= res=(response:poke lake paths)
^- (quip card:agent:gall subs)
=* current [src.bowl dude.res path.res]
=/ old=flow (fall (~(got by sub) current) *flow)
?: ?=(%tomb what.res)
=/ =flow old(stale &)
:_ 0/(~(put by sub) current `flow) :_ ~
(on-rock-poke fake=& current flow ~)
::
=/ [wave=(unit wave:lake) new=(unit flow)]
?- what.res
%rock ?: (lte aeon.res aeon.old) [~ ~]
[~ `[aeon.res | | rock.res]]
%wave ?: (lte aeon.res aeon.old) [~ ~]
?> =(aeon.res +(aeon.old))
[`wave.res `[aeon.res | | (wash:lake rock.old wave.res)]]
==
?~ new `0/sub
:_ 0/(~(put by sub) current new) :_ ~
(on-rock-poke fake=& current u.new wave)
::
++ handle-fake-on-rock
|= =(on-rock:poke lake paths)
^- (list card:agent:gall)
?~ flow=(~(get by sub) [src from path]:on-rock) ~
?~ u.flow ~
?. =([stale fail rock]:u.u.flow [stale fail rock]:on-rock) ~
~[(on-rock-poke fake=| [src from path]:on-rock u.u.flow wave.on-rock)]
::
:: Non-public facing arms below
::
++ pine
|= [who=ship which=dude where=paths]
^- card:agent:gall
:* %pass (zoom scry-request/(scot %p who)^which^where)
%agent [who which]
%poke sss-to-pub/[result-type `result`[where dap.bowl]]
==
++ on-rock-poke
|= [fake=? [=ship =dude path=paths] flow wave=(unit wave:lake)]
^- card:agent:gall
:* %pass %+ zoom ?:(fake %fake %on-rock)
(scot %ud aeon)^(scot %p ship)^dude^path
%agent [our dap]:bowl
%poke ?:(fake %sss-fake-on-rock %sss-on-rock)
on-rock-type `from`[path ship dude stale fail rock wave]
==
--
++ du :: Manage publications.
|* [=(lake) paths=mold]
=>
|%
+$ into (request:poke paths)
+$ result (response:poke lake paths)
+$ rule $~ [`5 5]
[horizon=(unit @ud) frequency=@ud] :: Retention policy
+$ tide
$: rok=((mop aeon rock:lake) gte)
wav=((mop aeon wave:lake) lte)
rul=rule
mem=(jug ship dude)
==
+$ buoy
$: tid=$~(*tide $@(aeon tide))
alo=(unit (set ship))
==
++ pubs
=< $>(%1 versioned)
|%
++ update
|= =versioned
^- pubs
?- -.versioned
%1 versioned
%0
:- %1
%- ~(run by +.versioned)
|= =buoy-0:^versioned
^- buoy
%= buoy-0
tid
?@ tid.buoy-0 tid.buoy-0
^- tide
%= tid.buoy-0
rocks.rul
?: =(waves.rul.tid.buoy-0 0) ~
`(mul [+(rocks) waves]:rul.tid.buoy-0)
::
mem
^- (jug ship dude)
%- ~(run by mem.tid.buoy-0)
|= =(map dude @da)
^- (set dude)
~(key by map)
==
==
==
++ versioned
=< $% [%0 (map paths buoy-0)]
[%1 (map paths buoy)]
==
|%
+$ buoy-0
$: tid=$~(*tide-0 $@(aeon tide-0))
alo=(unit (set ship))
==
+$ tide-0
$: rok=((mop aeon rock:lake) gte)
wav=((mop aeon wave:lake) lte)
rul=[rocks=@ud waves=@ud]
mem=(mip ship dude @da)
==
--
--
--
|= [pub=versioned:pubs =bowl:gall result-type=type]
=> .(pub +:(update:pubs pub))
=* rok ((on aeon rock:lake) gte)
=* wav ((on aeon wave:lake) lte)
|%
++ rule :: Set new retention policy.
|= [path=paths =^rule]
^- pubs
:- %1
%- fall :_ (~(put by pub) path %*(. *$<(aeon buoy) rul.tid rule))
%- mole |.
%+ ~(jab by pub) path
|= =buoy
?@ tid.buoy buoy
buoy(tid (form tid.buoy(rul rule)))
::
++ wipe :: Create new rock and wipe rest.
|= path=paths
^- pubs
:- %1
%+ ~(jab by pub) path
|= =buoy
?@ tid.buoy buoy
%* . buoy(tid (form tid.buoy(rul [`0 1])))
rul.tid rul.tid.buoy
wav.tid ~
==
++ give :: Give a wave on a path.
|= [path=paths =wave:lake]
^- (quip card:agent:gall pubs)
?~ ((soft ^path) path) ~| %need-path !!
=/ buoy (~(gut by pub) path *buoy)
=? buoy ?=(@ tid.buoy)
%*(. buoy(tid *tide) rok.tid (put:rok ~ +(tid.buoy) *rock:lake))
?> ?=(^ tid.buoy)
=* tide tid.buoy
=/ next=aeon +((latest tide))
:- %- zing
%+ turn ~(tap by mem.tide)
|= [=ship =(set dude)]
%+ turn ~(tap in set)
|= =dude
(send wave/[next wave] ship dude path)
:- %1
%+ ~(put by pub) path
=/ last=[=aeon =rock:lake] (fall (pry:rok rok.tide) *[key val]:rok)
=. wav.tide (put:wav wav.tide next wave)
=. mem.tide ~
?. =(next (add aeon.last frequency.rul.tide)) buoy
buoy(tid (form tide))
::
++ fork :: Fork a pub into an empty path.
|= [from=paths to=paths]
^- pubs
:- %1
?< (~(has by pub) to)
(~(put by pub) to (~(got by pub) from))
::
++ copy :: Fork a sub into an empty path.
|= [sub=_(mk-subs lake *) from=[ship dude *] to=paths]
^- pubs
:- %1
?< (~(has by pub) to)
%+ ~(put by pub) to
%* . *$<(aeon buoy)
rok.tid (put:rok ~ [aeon rock]:(need (~(got by +:sub) from)))
==
::
++ perm :: Change permissions with gate.
|= [where=(list paths) diff=$-((unit (set ship)) (unit (set ship)))]
^- (quip card:agent:gall pubs)
%+ edit where
|= =buoy
=/ new=_alo.buoy (diff alo.buoy)
?@ tid.buoy buoy(alo new)
%= buoy
alo new
mem.tid ?~ new mem.tid.buoy
%. mem.tid.buoy
~(int by (malt (turn ~(tap in u.new) (late *(set @)))))
==
++ public (curr perm _~) :: Make list of paths public.
++ secret (curr perm _`~) :: Make list of paths secret.
:: :: Block ships from paths.
++ block :: No-ops on public paths.
|= [who=(list ship) whence=(list paths)]
^- (quip card:agent:gall pubs)
%+ perm whence
|= old=(unit (set ship))
?~ old ~ `(~(dif in u.old) (sy who))
:: :: Allow ships to paths.
++ allow :: Any public paths will no-op.
|= [who=(list ship) where=(list paths)]
^- (quip card:agent:gall pubs)
%+ perm where
|= old=(unit (set ship))
?~ old ~ `(~(gas in u.old) who)
:: :: Kill a list of paths, i.e. tell
++ kill :: subs to not expect updates.
(curr edit |=(=buoy buoy(tid (latest tid.buoy))))
:: :: Reopen list of killed paths.
++ read :: See current published states.
^- (map paths [allowed=(unit (set ship)) =rock:lake])
%- malt %+ murn ~(tap by pub)
|= [path=paths =buoy]
^- (unit [paths (unit (set ship)) rock:lake])
?@ tide=tid.buoy ~
:^ ~ path alo.buoy =< rock
=/ snap=[=aeon =rock:lake] (fall (pry:rok rok.tide) *[key val]:rok)
%+ roll (tap:wav (lot:wav wav.tide `aeon.snap ~))
|= [[=aeon =wave:lake] =_snap]
?. =(aeon +(aeon.snap)) snap
[aeon (wash:lake rock.snap wave)]
::
++ apply :: Handle request from subscriber.
|= req=(request:poke paths)
^- (quip card:agent:gall pubs)
=/ =buoy (~(gut by pub) path.req *buoy)
?< &(?=(^ alo.buoy) !(~(has in u.alo.buoy) src.bowl))
?@ tid.buoy
:_ 1/pub :_ ~
(send tomb/~ src.bowl dude.req path.req)
:_ 1/pub :_ ~
=/ last (fall (pry:rok rok.tid.buoy) *[=key =val]:rok)
(send rock/last src.bowl dude.req path.req)
::
++ tell
|= [[ship=term =dude aeon=term path=paths] =sign:agent:gall]
^- (quip card:agent:gall pubs)
?> ?=(%poke-ack -.sign)
?^ p.sign `1/pub
=/ =buoy (~(gut by pub) path *buoy)
?< &(?=(^ alo.buoy) !(~(has in u.alo.buoy) src.bowl))
?@ tid.buoy
:_ 1/pub :_ ~
(send tomb/~ src.bowl dude path)
::
=> .(aeon +((slav %ud aeon)))
?^ dat=(get:wav wav.tid.buoy aeon)
:_ 1/pub :_ ~
(send wave/[aeon u.dat] src.bowl dude path)
=/ last (fall (pry:rok rok.tid.buoy) [=key =val]:rok)
?: (lte aeon key.last)
:_ 1/pub :_ ~
(send rock/last src.bowl dude path)
:- ~
:- %1
%+ ~(put by pub) path
%= buoy
mem.tid (~(put ju mem.tid.buoy) src.bowl dude)
==
::
:: Non-public facing arms below
::
++ send
|= [payload=_|2:*(response:poke lake paths) =ship =dude path=paths]
^- card:agent:gall
=* mark (cat 3 %sss- name:lake)
=/ callback=^path
?: ?=(%tomb what.payload) (zoom tomb-response/(scot %p ship)^dude^path)
(zoom scry-response/(scot %p ship)^dude^(scot %ud aeon.payload)^path)
:* %pass callback
%agent [ship dude]
%poke mark result-type ^- (response:poke lake paths)
[path dap.bowl payload]
==
++ latest
|= =$@(aeon tide)
^- aeon
?@ tide tide
%+ max (fall (bind (pry:rok rok.tide) head) 0)
(fall (bind (ram:wav wav.tide) head) 0)
::
++ edit
|= [ps=(list paths) edit=$-(buoy buoy)]
^- (quip card:agent:gall pubs)
%- ~(rep in (sy ps))
|= [path=paths caz=(list card:agent:gall) %1 =_pub]
?~ old=(~(get by pub) path) [caz 1/pub]
=/ new=buoy (edit u.old)
:_ 1/(~(put by pub) path new)
%- weld :_ caz
^- (list card:agent:gall)
?@ tid.u.old ~
?@ tid.new
%- zing
%+ turn ~(tap by mem.tid.u.old)
|= [=ship =(set dude)]
(turn ~(tap in set) |=(=dude (send tomb/~ ship dude path)))
?~ alo.new ~
=/ new-alo=(jug ship dude)
(malt (turn ~(tap in u.alo.new) (late *(set @))))
%- zing
%+ turn ~(tap by (~(dif by mem.tid.u.old) new-alo))
|= [=ship =(set dude)]
(turn ~(tap in set) |=(=dude (send tomb/~ ship dude path)))
::
++ form
|= =tide
^+ tide
=/ max-rock=[=aeon =rock:lake] (fall (pry:rok rok.tide) *[key val]:rok)
=/ max-wave (fall (bind (ram:wav wav.tide) head) 0)
=? rok.tide :: Create new rock.
?& !=(frequency.rul.tide 0)
(gte max-wave (add aeon.max-rock frequency.rul.tide))
==
%+ put:rok rok.tide
%+ roll (tab:wav wav.tide `aeon.max-rock max-wave)
|: [*[now=aeon =wave:lake] `[prev=aeon =rock:lake]`max-rock]
~| %aeon-awry
?> =(now +(prev))
[now (wash:lake rock wave)]
=. rok.tide
?~ horizon.rul.tide :: Only keep genesis and latest.
(gas:rok ~ (murn ~[(ram:rok rok.tide) (pry:rok rok.tide)] same))
%^ lot:rok rok.tide :: Delete beyond horizon.
~
(mole |.((sub max-wave (max [u.horizon frequency]:rul.tide))))
~| %rock-zero
tide(wav (lot:wav wav.tide (bind (ram:rok rok.tide) |=([r=@ *] (dec r))) ~))
--
--
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