mirror of
https://github.com/urbit/shrub.git
synced 2024-12-22 02:11:38 +03:00
386 lines
13 KiB
Plaintext
386 lines
13 KiB
Plaintext
/- *sss
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/+ *mip
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::
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|%
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++ mk-subs :: Create sub-map.
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|* [=(lake) paths=mold]
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-:+6:(da lake paths)
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::
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++ mk-pubs :: Create pub-map.
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|* [=(lake) paths=mold]
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-:+6:(du lake paths)
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::
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++ mk-mar :: Create mar.
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|* =(lake)
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|_ =(response:poke lake *)
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++ grow
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|%
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++ noun response
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--
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++ grab
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|%
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++ noun (response:poke lake *)
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--
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++ grad %noun
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--
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++ fled :: Like +sped but head is a path.
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|= vax=vase
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^- vase
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:_ q.vax
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%- ~(play ut p.vax)
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=- [%wtgr [%wtts - [%& 2]~] [%$ 1]]
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=/ pax ~| %path-none ;;(path -.q.vax)
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|- ^- spec
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?~ pax [%base %null]
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[%bccl ~[[%leaf %ta -.pax] $(pax +.pax)]]
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::
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++ zoom |= =noun ~| %need-path $/sss/;;(path noun)
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::
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++ da :: Manage subscriptions.
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|* [=(lake) paths=mold]
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=>
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|%
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+$ from (on-rock:poke lake paths)
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+$ into (response:poke lake paths)
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+$ result (request:poke paths)
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+$ fail [paths ship dude]
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+$ flow [=aeon stale=_| fail=_| =rock:lake]
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+$ subs [%0 (map [ship dude paths] (unit flow))]
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--
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|= $: sub=subs
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=bowl:gall
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result-type=type
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on-rock-type=type
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fail-type=type
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==
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=> .(sub +.sub)
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|%
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++ surf :: Subscribe to [ship dude path].
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|= which=[ship dude paths]
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^- (quip card:agent:gall subs)
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?+ flow=(~(get by sub) which) `0/sub
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~ [~[(pine which)] 0/(~(put by sub) which ~)]
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[~ ~] [~[(pine which)] 0/sub]
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[~ ~ [* %& * *]] [~[(scry `+(aeon.u.u.flow) which)] 0/sub]
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==
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++ quit (corl (lead %0) ~(del by sub)) :: Unsub from [ship dude path].
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++ read :: See current subscribed states.
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^- (map [ship dude paths] [stale=? fail=? =rock:lake])
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%- malt %+ murn ~(tap by sub)
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|= [key=[ship dude paths] val=(unit flow)]
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?~ val ~
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`[key +.u.val]
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:: :: Check poke-ack for errors.
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:: :: If an %sss-on-rock poke nacks,
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++ chit :: that state is flagged as failed.
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|= [[aeon=term ship=term dude=term path=paths] =sign:agent:gall]
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^- subs
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:- %0
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?> ?=(%poke-ack -.sign)
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?~ p.sign sub
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%+ ~(jab by sub) [(slav %p ship) dude path]
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|= (unit flow)
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=/ =flow (need +<)
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?> =(aeon.flow (slav %ud aeon))
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`flow(fail &)
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:: :: Check poke-ack for errors.
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:: :: If a scry request nacks,
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++ tell :: that state is flagged as stale.
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|= [[ship=term =dude aeon=term path=paths] =sign:agent:gall]
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^- (quip card:agent:gall subs)
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?> ?=(%poke-ack -.sign)
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?~ p.sign `0/sub
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=/ current [ship=(slav %p ship) dude=dude path=path]
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?+ flow=(~(get by sub) current) `0/sub
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[~ ~ *]
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=. stale.u.u.flow &
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:_ 0/(~(put by sub) current u.flow)
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~[(on-rock-poke current u.u.flow ~)]
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::
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[~ ~]
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:_ 0/(~(del by sub) current) :_ ~
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:* %pass (zoom surf-fail/aeon/ship/dude/path)
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%agent [our dap]:bowl
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%poke %sss-surf-fail fail-type ^- fail
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[path ship dude]:current
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==
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==
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:: :: Check if we're still interested
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:: :: in a wave. If no, no-op.
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:: :: If yes, scry.
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++ behn :: (See https://gist.github.com/belisarius222/7f8452bfea9b199c0ed717ab1778f35b)
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|= [ship=term =dude aeon=term path=paths]
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^- (list card:agent:gall)
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%- fall :_ ~ %- mole |.
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=/ ship (slav %p ship)
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=/ aeon (slav %ud aeon)
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?: (lte aeon aeon:(fall (~(got by sub) ship dude path) *flow)) ~
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~[(scry `aeon ship dude path)]
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::
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++ apply :: Handle response from publisher.
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|= res=(response:poke lake paths)
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^- (quip card:agent:gall subs)
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%- fall :_ `0/sub %- mole |.
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=* current [src.bowl dude.res path.res]
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=/ old=flow (fall (~(got by sub) current) *flow)
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?- type.res
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%tomb
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=/ =flow old(stale &)
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:_ 0/(~(put by sub) current `flow) :_ ~
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(on-rock-poke current flow ~)
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::
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%yore
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:_ 0/sub :_ ~
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(pine src.bowl dude.res path.res)
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::
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%nigh
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:_ 0/sub :_ ~
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(behn-s25 [dude aeon path]:res)
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::
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%scry
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=/ [wave=(unit wave:lake) =flow]
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?- what.res
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%rock ?> (gte aeon.res aeon.old)
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[~ [aeon.res | | rock.res]]
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%wave ?> =(aeon.res +(aeon.old))
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[`wave.res [aeon.res | | (wash:lake rock.old wave.res)]]
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==
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:_ 0/(~(put by sub) current `flow)
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:~ (on-rock-poke current flow wave)
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(scry `+(aeon.res) src.bowl dude.res path.res)
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==
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==
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::
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:: Non-public facing arms below
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::
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++ behn-s25
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|= [=dude =aeon path=noun]
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^- card:agent:gall
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:* %pass (zoom behn/(scot %p src.bowl)^dude^(scot %ud aeon)^path)
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%arvo %b %wait (add ~s25 now.bowl)
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==
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++ pine |= [ship dude paths] (scry ~ +<)
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++ scry
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|= [when=(unit aeon) who=ship which=dude where=paths]
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^- card:agent:gall
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=/ when ?~ when ~ (scot %ud u.when)
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:* %pass (zoom scry-request/(scot %p who)^which^when^where)
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%agent [who which]
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%poke %sss-to-pub :- result-type ^- result
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[where dap.bowl ^when]
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==
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++ on-rock-poke
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|= [[=ship =dude path=paths] flow wave=(unit wave:lake)]
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^- card:agent:gall
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:* %pass (zoom on-rock/(scot %ud aeon)^(scot %p ship)^dude^path)
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%agent [our dap]:bowl
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%poke %sss-on-rock on-rock-type ^- from
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[path ship dude stale fail rock wave]
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==
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--
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++ du :: Manage publications.
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|* [=(lake) paths=mold]
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=>
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|%
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+$ into (request:poke paths)
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+$ result (response:poke lake paths)
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+$ rule [rocks=_1 waves=_5] :: Retention policy
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+$ tide
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$: rok=((mop aeon rock:lake) gte)
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wav=((mop aeon wave:lake) lte)
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rul=rule
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mem=(mip ship dude @da)
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==
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+$ buoy
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$: tid=$~(*tide $@(aeon tide))
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alo=(unit (set ship))
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==
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+$ pubs [%0 (map paths buoy)]
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--
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|= [pub=pubs =bowl:gall result-type=type]
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=> .(pub +.pub)
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=* rok ((on aeon rock:lake) gte)
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=* wav ((on aeon wave:lake) lte)
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|%
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++ rule :: Set new retention policy.
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|= [path=paths =^rule]
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^- pubs
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:- %0
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%+ ~(jab by pub) path
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|= =buoy
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?@ tid.buoy buoy
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buoy(tid (form tid.buoy(rul rule)))
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::
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++ wipe :: Create new rock and wipe rest.
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|= path=paths
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^- pubs
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:- %0
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%+ ~(jab by pub) path
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|= =buoy
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?@ tid.buoy buoy
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%* . buoy(tid (form tid.buoy(rul [0 1])))
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rul.tid rul.tid.buoy
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wav.tid ~
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==
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++ give :: Give a wave on a path.
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|= [path=paths =wave:lake]
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^- (quip card:agent:gall pubs)
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?~ ((soft ^path) path) ~| %need-path !!
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=/ buoy (~(gut by pub) path *buoy)
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=? buoy ?=(@ tid.buoy)
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%*(. buoy(tid *tide) rok.tid (put:rok ~ +(tid.buoy) *rock:lake))
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?> ?=(^ tid.buoy)
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=* tide tid.buoy
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=/ next=aeon +((latest tide))
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:- %+ murn ~(tap bi mem.tide)
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|= [=ship =dude =@da]
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?: (lth da now.bowl) ~
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`(send scry/wave/wave ship dude next path)
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:- %0
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%+ ~(put by pub) path
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=/ last=[=aeon =rock:lake] (fall (pry:rok rok.tide) *[key val]:rok)
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=. wav.tide (put:wav wav.tide next wave)
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=. mem.tide ~
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?. =(next (add aeon.last waves.rul.tide)) buoy
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buoy(tid (form tide))
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::
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++ fork :: Fork a pub into an empty path.
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|= [from=paths to=paths]
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^- pubs
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:- %0
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?< (~(has by pub) to)
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(~(put by pub) to (~(got by pub) from))
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::
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++ copy :: Fork a sub into an empty path.
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|= [sub=_(mk-subs lake *) from=[ship dude *] to=paths]
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^- pubs
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:- %0
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?< (~(has by pub) to)
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%+ ~(put by pub) to
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%* . *$<(aeon buoy)
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rok.tid (put:rok ~ [aeon rock]:(need (~(got by +:sub) from)))
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==
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::
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++ perm :: Change permissions with gate.
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|= [where=(list paths) diff=$-((unit (set ship)) (unit (set ship)))]
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^- pubs
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%+ edit where
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|= =buoy
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=/ new=_alo.buoy (diff alo.buoy)
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?@ tid.buoy buoy(alo new)
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%= buoy
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alo new
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mem.tid ?~ new mem.tid.buoy
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%. mem.tid.buoy
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~(int by (malt (turn ~(tap in u.new) (late *(map @ @)))))
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==
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++ public (curr perm _~) :: Make list of paths public.
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++ secret (curr perm _`~) :: Make list of paths secret.
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:: :: Block ships from paths.
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++ block :: No-ops on public paths.
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|= [who=(list ship) whence=(list paths)]
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^- pubs
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%+ perm whence
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|= old=(unit (set ship))
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?~ old ~ `(~(dif in u.old) (sy who))
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:: :: Allow ships to paths.
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++ allow :: Any public paths will no-op.
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|= [who=(list ship) where=(list paths)]
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^- pubs
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%+ perm where
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|= old=(unit (set ship))
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?~ old ~ `(~(gas in u.old) who)
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:: :: Kill a list of paths, i.e. tell
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++ kill :: subs to not expect updates.
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(curr edit |=(=buoy buoy(tid (latest tid.buoy))))
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:: :: Reopen list of killed paths.
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++ read :: See current published states.
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^- (map paths [allowed=(unit (set ship)) =rock:lake])
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%- malt %+ murn ~(tap by pub)
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|= [path=paths =buoy]
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^- (unit [paths (unit (set ship)) rock:lake])
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?@ tide=tid.buoy ~
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:^ ~ path alo.buoy =< rock
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=/ snap=[=aeon =rock:lake] (fall (pry:rok rok.tide) *[key val]:rok)
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%+ roll (tap:wav (lot:wav wav.tide `aeon.snap ~))
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|= [[=aeon =wave:lake] =_snap]
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?. =(aeon +(aeon.snap)) snap
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[aeon (wash:lake rock.snap wave)]
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::
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++ apply :: Handle request from subscriber.
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|= req=(request:poke paths)
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^- (quip card:agent:gall pubs)
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=/ =buoy (~(gut by pub) path.req *buoy)
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?< &(?=(^ alo.buoy) !(~(has in u.alo.buoy) src.bowl))
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?@ tid.buoy
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:_ 0/pub :_ ~
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(send tomb/~ src.bowl dude.req tid.buoy path.req)
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?~ when.req
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=/ last (fall (pry:rok rok.tid.buoy) *[=key =val]:rok)
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:_ 0/pub :_ ~
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(send scry/rock/val.last src.bowl dude.req key.last path.req)
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?^ dat=(get:wav wav.tid.buoy u.when.req)
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:_ 0/pub :_ ~
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(send scry/wave/u.dat src.bowl [dude u.when path]:req)
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?: %+ lte u.when.req
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key::(fall (ram:wav wav.tid.buoy) (pry:rok rok.tid.buoy) [=key val]:wav)
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:_ 0/pub :_ ~
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(send yore/~ src.bowl [dude u.when path]:req)
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?> =(u.when.req +((latest tid.buoy)))
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:- ~[(send nigh/~ src.bowl [dude u.when path]:req)]
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:- %0
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%+ ~(put by pub) path.req
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%= buoy
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mem.tid (~(put bi mem.tid.buoy) src.bowl dude.req (add ~s25 now.bowl))
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==
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::
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:: Non-public facing arms below
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::
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++ send
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|= [payload=_|3:*(response:poke lake paths) =ship =dude =aeon path=paths]
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^- card:agent:gall
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=* mark (cat 3 %sss- name:lake)
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:* %pass (zoom scry-response/(scot %p ship)^dude^(scot %ud aeon)^path)
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%agent [ship dude]
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%poke mark result-type ^- (response:poke lake paths)
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[path dap.bowl aeon payload]
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==
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++ latest
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|= =$@(aeon tide)
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^- aeon
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?@ tide tide
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%+ max (fall (bind (pry:rok rok.tide) head) 0)
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(fall (bind (ram:wav wav.tide) head) 0)
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::
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++ edit
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|= [ps=(list paths) edit=$-(buoy buoy)]
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^- pubs
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:- %0
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%- ~(rep in (sy ps))
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|= [path=paths =_pub]
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%- fall :_ pub %- mole |.
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(~(jab by pub) path edit)
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::
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++ form
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|= =tide
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^+ tide
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=/ max-rock=[=aeon =rock:lake] (fall (pry:rok rok.tide) *[key val]:rok)
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=/ max-wave (fall (bind (ram:wav wav.tide) head) 0)
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=. rok.tide
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%+ gas:rok +<-:gas:rok
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%- tab:rok :_ [~ +(rocks.rul.tide)]
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?: ?| =(waves.rul.tide 0)
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(lth max-wave (add aeon.max-rock waves.rul.tide))
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==
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rok.tide
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%+ put:rok rok.tide
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%+ roll (tab:wav wav.tide `aeon.max-rock max-wave)
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|: [*[now=aeon =wave:lake] `[prev=aeon =rock:lake]`max-rock]
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~| %aeon-awry
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?> =(now +(prev))
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[now (wash:lake rock wave)]
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~| %rock-zero
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tide(wav (lot:wav wav.tide (bind (ram:rok rok.tide) |=([r=@ *] (dec r))) ~))
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--
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--
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