urbit/pkg/arvo/app/roller.hoon

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:: roller: Azimuth L2 roll aggregator
::
:: general flow is as described below, to ensure transactions actually go
:: through once we start sending it out, in the dumbest reasonable way.
::
:: periodic timer fires:
:: if there are no pending l2 txs, do nothing.
:: else kick off tx submission flow:
:: "freeze" pending txs, store alongside nonce, then increment nonce,
:: kick off thread for sending the corresponding l1 tx:
:: if nonce doesn't match on-chain expected nonce, bail.
:: if we can't afford the tx fee, bail.
:: construct, sign, submit the l1 tx.
:: if thread bailed, retry in five minutes.
:: if thread succeeded, retry in five minutes with higher gas price.
:: when retrying, only do so if l2 txs remain in the "frozen" txs group.
:: on %tx diff from naive, remove the matching tx from the frozen group.
::
::TODO questions:
:: - it's a bit weird how we just assume the raw and tx in raw-tx to match...
::
/- *dice
/+ azimuth,
naive,
dice,
lib=naive-transactions,
default-agent,
ethereum,
dbug,
verb
::
|%
+$ app-state
$: %3
:: pending: the next l2 txs to be sent
:: sending: l2 txs awaiting l2 confirmation, ordered by nonce
:: finding: sig+raw-tx hash reverse lookup for txs in sending map
:: history: status of l2 txs by ethereum address, timestamp sorted
:: ship-quota: number of txs submited per ship in the current slice
:: allowances: specific no of allowed transactions per given ship
:: next-nonce: next l1 nonce to use
:: next-batch: when then next l2 batch will be sent
:: next-slice: when the global quota will be reset
:: pre: predicted l2 state
:: own: ownership of azimuth points
:: spo: residents and escapees, per sponsor
::
pending=(list pend-tx)
sending=(tree [l1-tx-pointer send-tx])
finding=(map keccak ?(%confirmed %failed [=time l1-tx-pointer]))
history=(map address:ethereum (tree hist-tx))
ship-quota=(map ship @ud)
allowances=(map ship (unit @ud))
next-nonce=(unit @ud)
next-batch=time
next-slice=time
pre=^state:naive
own=owners
spo=sponsors
::
:: pk: private key to send the roll
:: quota: max numbers of transactions per unit of time (slice)
:: slice: unit of time where txs are allowed to be added to pending
:: derive: defer derivation of predicted/ownership state
:: frequency: time to wait between sending batches (TODO fancier)
:: endpoint: ethereum rpc endpoint to use
:: contract: ethereum contract address
:: chain-id: mainnet, ropsten, local (https://chainid.network/)
:: resend-time: time to resend a batch with higher gas prie
:: update-rate: frequency to update the roller's predicted state
::
pk=@
slice=@dr
quota=@ud
derive=?
frequency=@dr
endpoint=(unit @t)
contract=@ux
chain-id=@
resend-time=@dr
update-rate=@dr
==
:: orp: ordered points in naive state by parent ship
::
++ orp ((on ship point:naive) por:naive)
:: ors: ordered sending map by (increasing) L1 nonce
::
++ ors ((on l1-tx-pointer send-tx) nonce-order:dice)
:: orh: ordered tx history by (decreasing) timestamp
::
++ orh ((on time roll-tx) gth)
::
+$ action
$% :: we need to include the address in %submit so pending txs show up
:: in the tx history, but because users can send the wrong
:: address, in +apply-tx:predicted state, we just replace
:: the provided address, with the one used when the message was signed;
::
:: we need to do it there to know the correct nonce that the signed
:: message should have included.
::
[%submit force=? =address:naive sig=@ tx=part-tx]
[%cancel sig=@ keccak=@ =l2-tx =ship]
[%commit ~] ::TODO maybe pk=(unit @) later
[%config config]
[%assign =ship quota=(unit @ud)]
==
::
+$ card card:agent:gall
::
++ lverb &
--
::
=| app-state
=* state -
::
%- agent:dbug
%+ verb |
^- agent:gall
::
=<
|_ =bowl:gall
+* this .
do ~(. +> bowl)
def ~(. (default-agent this %|) bowl)
::
++ on-init
^- (quip card _this)
=: frequency ~h1
quota 7
slice ~d7
resend-time ~m5
update-rate ~m5
contract naive:local-contracts:azimuth
chain-id chain-id:local-contracts:azimuth
==
=^ card-1 next-batch set-roller:timer
=^ card-2 next-slice (set-quota:timer slice)
:_ this
:~ card-1
card-2
[%pass /azimuth-events %agent [our.bowl %azimuth] %watch /event]
==
::
++ on-save !>(state)
++ on-load
|= old=vase
^- (quip card _this)
=| cards=(list card)
|^
=+ !<(old-state=app-states old)
=? cards ?=(%0 -.old-state)
[card:(set-quota:timer slice)]~
=? old-state ?=(%0 -.old-state)
^- state-1
=| ship-quota=(map ship @ud)
=/ [slice=@dr quota=@ud resend-time=@dr update-rate=@dr]
[~d7 7 ~m5 ~m1]
=, old-state
:* %1
pending sending finding history
ship-quota next-nonce next-batch
pre own pk slice quota derive
frequency endpoint contract chain-id
resend-time update-rate
==
=? old-state ?=(%1 -.old-state)
^- state-2
=| spo=(map ship [residents=(set ship) requests=(set ship)])
=, old-state
:* %2
pending sending finding history
ship-quota next-nonce next-batch
pre own spo pk slice quota derive
frequency endpoint contract chain-id
resend-time update-rate
==
=? old-state ?=(%2 -.old-state)
^- app-state
=, old-state
=| allowances=(map ship (unit @ud))
=/ next-slice=time (mul +((div now.bowl slice)) slice)
:* %3
pending sending finding history
ship-quota allowances
next-nonce next-batch next-slice
pre own spo pk slice quota derive
frequency endpoint contract chain-id
resend-time update-rate
==
?> ?=(%3 -.old-state)
[cards this(state old-state)]
::
++ app-states $%(state-0 state-1 state-2 app-state)
++ state-0
$: %0
pending=(list pend-tx)
sending=(tree [l1-tx-pointer send-tx])
finding=(map keccak ?(%confirmed %failed [=time l1-tx-pointer]))
history=(map address:ethereum (tree hist-tx))
next-nonce=(unit @ud)
next-batch=time
pre=^state:naive
own=owners
derive=?
pk=@
frequency=@dr
endpoint=(unit @t)
contract=@ux
chain-id=@
==
::
++ state-1
$: %1
pending=(list pend-tx)
sending=(tree [l1-tx-pointer send-tx])
finding=(map keccak ?(%confirmed %failed [=time l1-tx-pointer]))
history=(map address:ethereum (tree hist-tx))
ship-quota=(map ship @ud)
next-nonce=(unit @ud)
next-batch=time
pre=^state:naive
own=owners
pk=@
slice=@dr
quota=@ud
derive=?
frequency=@dr
endpoint=(unit @t)
contract=@ux
chain-id=@
resend-time=@dr
update-rate=@dr
==
::
++ state-2
$: %2
pending=(list pend-tx)
sending=(tree [l1-tx-pointer send-tx])
finding=(map keccak ?(%confirmed %failed [=time l1-tx-pointer]))
history=(map address:ethereum (tree hist-tx))
ship-quota=(map ship @ud)
next-nonce=(unit @ud)
next-batch=time
pre=^state:naive
own=owners
spo=sponsors
pk=@
slice=@dr
quota=@ud
derive=?
frequency=@dr
endpoint=(unit @t)
contract=@ux
chain-id=@
resend-time=@dr
update-rate=@dr
==
--
::
++ on-poke
|= [=mark =vase]
^- (quip card _this)
=^ cards state
?+ mark (on-poke:def mark vase)
%roller-action
=+ !<(poke=action vase)
(on-action:do poke)
==
[cards this]
:: +on-peek: scry paths
::
:: /x/pending -> %noun (list pend-tx)
:: /x/pending/[~ship] -> %noun (list pend-tx)
:: /x/pending/[0xadd.ress] -> %noun (list pend-tx)
:: /x/tx/[0xke.ccak]/[@ud]status -> %noun tx-status
:: /x/history/[0xadd.ress] -> %noun (list hist-tx)
:: /x/nonce/[~ship]/[proxy] -> %noun (unit @)
:: /x/spawned/[~star] -> %noun (list ship)
:: /x/unspawned/[~star] -> %noun (list ship)
:: /x/sponsored/[~point] -> %noun [(list ship) (list ship)]
:: /x/next-batch -> %atom time
:: /x/next-slice -> %atom time
:: /x/point/[~ship] -> %noun point:naive
:: /x/ships/[0xadd.ress] -> %noun (list ship)
:: /x/config -> %noun config
:: /x/chain-id -> %atom @
:: /x/owned/[0xadd.ress] -> %noun (list ship)
:: /x/transfers/[0xadd.ress] -> %noun (list ship)
:: /x/manager/[0xadd.ress] -> %noun (list ship)
:: /x/voting/[0xadd.ress] -> %noun (list ship)
:: /x/spawning/[0xadd.ress] -> %noun (list ship)
:: /x/predicted -> %noun state:naive
:: /x/quota -> %atom @ud
:: /x/slice -> %atom @dr
:: /x/over-quota/[~ship] -> %atom ?
:: /x/ship-quota/[~ship] -> %atom @ud
:: /x/allowances -> %noun (map @p (unit @ud))
:: /x/allowances/[~ship] -> %noun (unit @ud)
:: /x/ready -> %atom ?
::
++ on-peek
|= =path
^- (unit (unit cage))
|^
?+ path ~
[%x %pending ~] ``noun+!>(pending)
[%x %pending @ ~] (pending-by i.t.t.path)
[%x %tx @ %status ~] (status i.t.t.path)
[%x %pending-tx @ ~] (transaction i.t.t.path)
[%x %history @ ~] (history i.t.t.path)
[%x %nonce @ @ ~] (nonce i.t.t.path i.t.t.t.path)
[%x %spawned @ ~] (spawned i.t.t.path)
[%x %unspawned @ ~] (unspawned i.t.t.path)
[%x %sponsored @ ~] (sponsored i.t.t.path)
[%x %next-batch ~] ``atom+!>(next-batch)
[%x %next-slice ~] ``atom+!>(next-slice)
[%x %point @ ~] (point i.t.t.path)
[%x %ships @ ~] (ships i.t.t.path)
[%x %config ~] config
[%x %chain-id ~] ``atom+!>(chain-id)
[%x %owned @ ~] (points-proxy %own i.t.t.path)
[%x %transfers @ ~] (points-proxy %transfer i.t.t.path)
[%x %manager @ ~] (points-proxy %manage i.t.t.path)
[%x %voting @ ~] (points-proxy %vote i.t.t.path)
[%x %spawning @ ~] (points-proxy %spawn i.t.t.path)
[%x %predicted ~] ``noun+!>(pre)
[%x %quota ~] ``atom+!>(quota)
[%x %slice ~] ``atom+!>(slice)
[%x %over-quota @ ~] (over-quota i.t.t.path)
[%x %ship-quota @ ~] (ship-quota i.t.t.path)
[%x %allowances ~] ``noun+!>(allowances)
[%x %allowance @ ~] (allowance i.t.t.path)
[%x %ready ~] ``atom+!>(?=(^ points.pre))
==
::
++ pending-by
|= wat=@t
?~ who=(slaw %p wat)
:: by-address
::
?~ wer=(slaw %ux wat)
[~ ~]
=; pending=(list pend-tx)
``noun+!>(pending)
%+ skim pending
|= pend-tx
:: TODO: use this instead? =(u.wer address)
::
?~ addr=(get-l1-address tx.raw-tx pre) |
=(u.wer u.addr)
:: by-ship
::
=; pending=(list pend-tx)
``noun+!>(pending)
%+ skim pending
|= pend-tx
=(u.who ship.from.tx.raw-tx)
::
++ status
|= wat=@t
?~ keccak=(slaw %ux wat)
[~ ~]
:+ ~ ~
:- %noun
!> ^- tx-status
?^ status=(~(get by finding) u.keccak)
?@ u.status [u.status ~]
[%sending `+.u.status]
:: TODO: potentially slow!
=; known=?
[?:(known %pending %unknown) ~]
%+ lien pending
|= pend-tx
=(u.keccak (hash-raw-tx:lib raw-tx))
::
++ transaction
|= wat=@t
?~ keccak=(slaw %ux wat)
[~ ~]
:+ ~ ~
:- %noun
!> ^- (unit pend-tx)
:: TODO: potentially slow!
|-
?~ pending ~
=* tx i.pending
?: =(u.keccak (hash-tx:lib raw.raw-tx.tx))
`tx
$(pending t.pending)
::
++ history
|= wat=@t
:+ ~ ~
:- %noun
!> ^- (list hist-tx)
?~ addr=(slaw %ux wat) ~
?~ hist=(~(get by ^history) u.addr) ~
(tap:orh u.hist)
::
++ nonce
|= [who=@t proxy=@t]
?~ who=(slaw %p who)
[~ ~]
?. ?=(proxy:naive proxy)
[~ ~]
:+ ~ ~
:- %noun
!> ^- (unit @)
?~ point=(get:orp points.pre u.who)
~
=< `nonce
(proxy-from-point:naive proxy u.point)
::
++ spawned
|= wat=@t
:+ ~ ~
:- %noun
!> ^- (list @p)
?~ star=(slaw %p wat) ~
=; range
(turn range head)
:: range exclusive [star first-moon-last-planet]
::
%- tap:orp
(lot:orp points.pre [`u.star `(cat 3 u.star 0x1.ffff)])
::
++ unspawned
|= wat=@t
:+ ~ ~
:- %noun
!> ^- (list @p)
?~ star=(slaw %p wat) ~
=/ spawned=(set @p)
=; points
(~(gas in *(set @p)) (turn points head))
%- tap:orp
(lot:orp points.pre [`u.star `(cat 3 u.star 0x1.ffff)])
=/ children=(list @p)
(turn (gulf 0x1 0xffff) |=(a=@ (cat 3 u.star a)))
%+ murn children
|= =ship
?: (~(has in spawned) ship) ~
`ship
::
++ sponsored
|= wat=@t
:+ ~ ~
:- %noun
!> ^- [(list ship) (list ship)]
?~ who=(slaw %p wat) [~ ~]
?~ sponsor=(~(get by spo) u.who)
[~ ~]
:- ~(tap in residents.u.sponsor)
~(tap in requests.u.sponsor)
::
++ point
|= wat=@t
?~ ship=(rush wat ;~(pfix sig fed:ag))
``noun+!>(*(unit point:naive))
``noun+!>((get:orp points.pre u.ship))
::
++ ships
|= wat=@t
:+ ~ ~
:- %noun
!> ^- (list ship)
?~ addr=(slaw %ux wat)
~
=/ proxies=(list proxy:naive)
~[%own %spawn %manage %vote %transfer]
%+ roll proxies
|= [=proxy:naive ships=(list ship)]
%+ weld ships
~(tap in (~(get ju own) [proxy u.addr]))
::
++ config
:+ ~ ~
:- %noun
!> ^- roller-config
:* next-batch
frequency
resend-time
update-rate
contract
chain-id
slice
quota
==
::
++ points-proxy
|= [=proxy:naive wat=@t]
:+ ~ ~
:- %noun
!> ^- (list ship)
?~ addr=(slaw %ux wat)
~
~(tap in (~(get ju own) [proxy u.addr]))
::
++ over-quota
|= wat=@t
?~ who=(slaw %p wat) [~ ~]
=/ [exceeded=? *] (quota-exceeded u.who)
``atom+!>(exceeded)
::
++ ship-quota
|= wat=@t
?~ who=(slaw %p wat) [~ ~]
=/ [exceeded=? next-quota=@ud] (quota-exceeded u.who)
:+ ~ ~
:- %atom
!> ^- @ud
?: exceeded 0
(sub quota.state (dec next-quota))
::
++ allowance
|= wat=@t
?~ who=(slaw %p wat) [~ ~]
:+ ~ ~
:- %noun
!> ^- (unit @ud)
?^ allow=(~(get by allowances) u.who)
u.allow
`quota.state
::
--
::
++ on-arvo
|= [=wire =sign-arvo]
^- (quip card _this)
?+ wire (on-arvo:def wire sign-arvo)
[%timer ~]
?+ +<.sign-arvo (on-arvo:def wire sign-arvo)
%wake =^(cards state on-timer:do [cards this])
==
[%quota-timer ~]
?+ +<.sign-arvo (on-arvo:def wire sign-arvo)
%wake =^(cards state on-quota-timer:do [cards this])
==
::
[%predict ~]
?+ +<.sign-arvo (on-arvo:def wire sign-arvo)
%wake
=. own.state canonical-owners:do
=^ effects state
(predicted-state canonical-state):do
[(emit effects) this(derive &)]
==
::
[%resend @ @ ~]
=/ [address=@ux nonce=@ud]
[(slav %ux i.t.wire) (rash i.t.t.wire dem)]
?+ +<.sign-arvo (on-arvo:def wire sign-arvo)
%wake [(send-roll:do address nonce) this]
==
==
::
++ on-fail
|= [=term =tang]
::TODO if crashed during timer, set new timer? how to detect?
(on-fail:def term tang)
::
++ on-watch
|= =path
^- (quip card _this)
:_ this
|^
?+ path (on-watch:def path)
[%txs @ ~] [%give %fact ~ (give-txs i.t.path)]~
[%points @ ~] [%give %fact ~ (give-points i.t.path)]~
==
::
++ give-points
|= wat=@t
^- cage
:- %points
!> ^- (list [ship point:naive])
?~ addr=(slaw %ux wat) ~
=/ proxies=(list proxy:naive)
~[%own %spawn %manage %vote %transfer]
%+ roll proxies
|= [=proxy:naive points=(list [ship point:naive])]
%+ weld points
::
%+ roll ~(tap in (~(get ju own) [proxy u.addr]))
|= [=ship points=_points]
%+ snoc points
[ship (need (get:orp points.pre ship))]
::
++ give-txs
|= wat=@t
^- cage
:- %txs
!> ^- (list hist-tx)
?~ addr=(slaw %ux wat) ~
?~ hist=(~(get by history) u.addr) ~
(tap:orh u.hist)
--
::
++ on-leave on-leave:def
::
++ on-agent
|= [=wire =sign:agent:gall]
^- (quip card _this)
|^
?+ wire (on-agent:def wire sign)
[%send @ @ *] (send-batch i.t.wire i.t.t.wire sign)
[%azimuth-events ~] (azimuth-event sign)
[%nonce ~] (nonce sign)
[%refresh-nonce @ ~] (refresh i.t.wire sign)
==
::
++ send-batch
|= [address=@t nonce=@t =sign:agent:gall]
^- (quip card _this)
=/ [address=@ux nonce=@ud]
[(slav %ux address) (rash nonce dem)]
?- -.sign
%poke-ack
?~ p.sign
%- (slog leaf+"Send batch thread started successfully" ~)
[~ this]
%- (slog leaf+"{(trip dap.bowl)} couldn't start thread" u.p.sign)
:_ this
[(leave:spider:do wire)]~
::
%watch-ack
?~ p.sign
[~ this]
=/ =tank leaf+"{(trip dap.bowl)} couldn't start listen to thread"
%- (slog tank u.p.sign)
[~ this]
::
%kick
[~ this]
::
%fact
?+ p.cage.sign (on-agent:def wire sign)
%thread-fail
=+ !<([=term =tang] q.cage.sign)
%- (slog leaf+"{(trip dap.bowl)} failed" leaf+<term> tang)
=^ cards state
(on-batch-result:do address nonce %.n^[%error 'thread failed'])
[cards this]
::
%thread-done
=+ !<(result=(each @ud [term @t]) q.cage.sign)
=^ cards state
(on-batch-result:do address nonce result)
[cards this]
==
==
::
++ azimuth-event
|= =sign:agent:gall
^- (quip card _this)
?+ -.sign [~ this]
%watch-ack
?~ p.sign [~ this]
=/ =tank leaf+"{(trip dap.bowl)} couldn't start listen to %azimuth"
%- (slog tank u.p.sign)
[~ this]
::
%fact
?+ p.cage.sign (on-agent:def wire sign)
%naive-diffs
=+ !<(=diff:naive q.cage.sign)
=^ cards state
(on-naive-diff:do diff)
[cards this]
::
%naive-state
~& > %received-azimuth-state
:: cache naive and ownership state
::
=+ !<([nas=^state:naive own=owners spo=sponsors] q.cage.sign)
=: own.state own
spo.state spo
==
=^ effects state
(predicted-state:do nas)
[(emit effects) this]
==
==
::
++ nonce
|= =sign:agent:gall
^- (quip card _this)
?- -.sign
%poke-ack
?~ p.sign
%- (slog leaf+"Nonce thread started successfully" ~)
[~ this]
%- (slog leaf+"{(trip dap.bowl)} couldn't start thread" u.p.sign)
:_ this
[(leave:spider:do wire)]~
::
%watch-ack
?~ p.sign
[~ this]
=/ =tank leaf+"{(trip dap.bowl)} couldn't start listen to thread"
%- (slog tank u.p.sign)
[~ this]
::
%kick
[~ this]
::
%fact
?+ p.cage.sign (on-agent:def wire sign)
%thread-fail
=+ !<([=term =tang] q.cage.sign)
%- (slog leaf+"{(trip dap.bowl)} failed" leaf+<term> tang)
[~ this]
::
%thread-done
=+ !<(nonce=@ud q.cage.sign)
[~ this(next-nonce `nonce)]
==
==
::
++ refresh
|= [nonce=@t =sign:agent:gall]
^- (quip card _this)
=/ failed-nonce=@ud (rash nonce dem)
?- -.sign
%poke-ack
?~ p.sign
%- (slog leaf+"Refresh Nonce thread started successfully" ~)
[~ this]
%- (slog leaf+"{(trip dap.bowl)} couldn't start thread" u.p.sign)
:_ this
[(leave:spider:do wire)]~
::
%watch-ack
?~ p.sign
[~ this]
=/ =tank leaf+"{(trip dap.bowl)} couldn't start listen to thread"
%- (slog tank u.p.sign)
[~ this]
::
%kick
[~ this]
::
%fact
?+ p.cage.sign (on-agent:def wire sign)
%thread-fail
=+ !<([=term =tang] q.cage.sign)
%- (slog leaf+"{(trip dap.bowl)} failed" leaf+<term> tang)
[~ this]
::
%thread-done
=+ !<(nonce=@ud q.cage.sign)
=^ cards state
(on-out-of-sync:do nonce failed-nonce)
[cards this]
==
==
--
--
::
|_ =bowl:gall
::TODO /lib/sys.hoon?
++ sys
|%
++ b
|%
++ wait
|= [=wire =time]
^- card
[%pass wire %arvo %b %wait time]
--
--
::TODO /lib/spider.hoon?
++ spider
|%
++ start-thread
|= [=wire thread=term arg=vase]
^- (list card)
=/ =beak byk.bowl(r da+now.bowl)
=/ tid=@ta (rap 3 thread '--' (scot %uv eny.bowl) ~)
=/ args [~ `tid beak thread arg]
:~ [%pass wire %agent [our.bowl %spider] %watch /thread-result/[tid]]
[%pass wire %agent [our.bowl %spider] %poke %spider-start !>(args)]
==
::
++ leave
|= =path
^- card
[%pass path %agent [our.bowl %spider] %leave ~]
--
::
::
++ emit
|= updates=(list update)
|- ^- (list card)
?~ updates ~
=* up i.updates
=/ [address=@t last-owner=(unit @t)]
?- -.up
%tx
:_ ~
(scot %ux address.up)
::
%point
:- (scot %ux address.new.up)
?~(old.up ~ `(scot %ux address.u.old.up))
==
%+ weld
$(updates t.updates)
^- (list card)
?- -.i.updates
%tx
[%give %fact ~[/txs/[address]] tx+!>(roll-tx.up)]~
::
%point
%+ weld
[%give %fact ~[/points/[address]] point+!>([ship point]:up)]~
?~ last-owner ~
[%give %fact ~[/points/[u.last-owner]] point+!>([ship point]:up)]~
==
::
++ part-tx-to-full
|= =part-tx
^- [octs tx:naive]
?- -.part-tx
%raw
?~ batch=(parse-raw-tx:naive 0 q.raw.part-tx)
~? lverb [dap.bowl %parse-failed]
:: TODO: maybe return a unit if parsing fails?
::
!!
[raw tx]:-.u.batch
::
%don [(gen-tx-octs:lib +.part-tx) +.part-tx]
%ful +.part-tx
==
:: +canonical-state: current l2 state from /app/azimuth
::
++ canonical-state
.^ ^state:naive
%gx
(scot %p our.bowl)
%azimuth
(scot %da now.bowl)
/nas/noun
==
:: +canonical-owners: current azimuth point ownership
::
++ canonical-owners
.^ owners
%gx
(scot %p our.bowl)
%azimuth
(scot %da now.bowl)
/own/noun
==
:: +canonical-sponsors: current azimuth sponsorship
::
++ canonical-sponsors
.^ sponsors
%gx
(scot %p our.bowl)
%azimuth
(scot %da now.bowl)
/spo/noun
==
:: +predicted-state
::
:: derives predicted state from applying pending & sending txs to
:: the provided naive state, discarding invalid txs in the process
::
++ predicted-state
|= nas=^state:naive
^- (quip update _state)
=: pre nas
own canonical-owners
spo canonical-sponsors
==
|^
=^ [nes=_sending updates-1=(list update)] state
apply-sending
=^ [nep=_pending updates-2=(list update)] state
apply-pending
:- (welp updates-1 updates-2)
state(sending nes, pending nep)
::
++ apply-pending
(apply-txs pending %pending next-nonce.state)
::
++ apply-sending
=| ups=(list update)
=/ valid=_sending ~
=+ sorted=(tap:ors sending)
|- ^+ [[valid ups] state]
?~ sorted [[valid ups] state]
::
=* key key.i.sorted
=* val val.i.sorted
=+ txs=(turn txs.val |=(=raw-tx:naive [| 0x0 *time raw-tx]))
=^ [new-valid=_txs nups=_ups] state
(apply-txs txs %sending `nonce.key)
:: we only hear updates for this nonce if it has been sent
::
=. valid ::=? valid sent.val
%^ put:ors valid
key
:: TODO: too much functional hackery?
val(txs (turn new-valid (cork tail (cork tail tail))))
$(sorted t.sorted, ups (welp ups nups))
::
++ apply-txs
|= [txs=(list pend-tx) type=?(%pending %sending) nonce=(unit @ud)]
=/ valid=_txs ~
=| ups=(list update)
|- ^+ [[valid ups] state]
?~ txs [[(flop valid) ups] state]
::
=* tx i.txs
=* raw-tx raw-tx.i.txs
=* ship ship.from.tx.raw-tx.i.txs
=/ =keccak (hash-raw-tx:lib raw-tx)
=/ sign-address=(unit @ux)
(extract-address:lib raw-tx pre chain-id)
=^ [gud=? nups=_ups] state
(try-apply pre force.tx raw-tx)
:: TODO: only replace address if !=(address.tx sign-address)?
::
=? tx &(gud ?=(^ sign-address))
tx(address u.sign-address)
=/ =roll-tx [ship type keccak (l2-tx +<.tx.raw-tx)]
=? nups !gud
%+ snoc nups
[%tx address.tx roll-tx(status %failed)]
=? valid gud [tx valid]
=? history !gud
=/ =time
?: ?=(%pending type) time.tx
=+ wer=(~(got by finding) keccak)
?>(?=(^ wer) time.wer)
=+ txs=(~(got by history) address.tx)
=. txs +:(del:orh txs time)
%+ ~(put by history) address.tx
%+ put:orh txs
[time roll-tx(status %failed)]
=? finding !gud (~(put by finding) keccak %failed)
$(txs t.txs, ups (weld ups nups))
--
:: +try-apply: maybe apply the given l2 tx to the naive state
::
++ try-apply
|= [nas=^state:naive force=? =raw-tx:naive]
^- [[? ups=(list update)] _state]
=/ [success=? ups=(list update) predicted=_nas owners=_own sponsors=_spo]
(apply-raw-tx:dice force chain-id raw-tx nas own spo)
:- [success ups]
state(pre predicted, own owners, spo sponsors)
::
++ get-l1-address
|= [=tx:naive nas=^state:naive]
^- (unit address:ethereum)
?~ point=(get:orp points.nas ship.from.tx) ~
=< `address
(proxy-from-point:naive proxy.from.tx u.point)
::
++ on-action
|= =action
^- (quip card _state)
=+ local=(team:title our.bowl src.bowl)
?- -.action
%commit ?>(local on-timer)
%config ?>(local (on-config +.action))
%assign ?>(local `state(allowances (~(put by allowances) +.action)))
%cancel (cancel-tx +.action)
::
%submit
:: TODO: return [~ state] instead of crashing
:: if naive state hasn't being retrieved yet?
::
?> ?=(^ points.pre)
%- take-tx
:* force.action
address.action
now.bowl
sig.action
(part-tx-to-full tx.action)
==
==
::
++ on-config
|= =config
^- (quip card _state)
?- -.config
%frequency [~ state(frequency frequency.config)]
%resend-time [~ state(resend-time time.config)]
%update-rate [~ state(update-rate rate.config)]
%slice [~ state(slice slice.config)]
%quota [~ state(quota quota.config)]
::
%endpoint
:- ~
=/ [contract=@ux chain-id=@]
=< [naive chain-id]
=, azimuth
?- net.config
%mainnet mainnet-contracts
%ropsten ropsten-contracts
%local local-contracts
%default contracts
==
%_ state
contract contract
chain-id chain-id
endpoint `endpoint.config
==
::
%setkey
?~ pk=(de:base16:mimes:html pk.config)
`state
[(get-nonce q.u.pk /nonce) state(pk q.u.pk)]
==
:: TODO: move address to state?
::
++ get-address
^- address:ethereum
(address-from-prv:key:ethereum pk)
:: +cancel-tx: cancel a pending transaction
::
++ cancel-tx
|= [sig=@ =keccak =l2-tx =ship]
^- (quip card _state)
?^ status=(~(get by finding) keccak)
~? lverb [dap.bowl %tx-not-pending status+u.status]
[~ state]
:: "cancel: 0x1234abcd"
::
=/ message=octs
%: cad:naive 3
8^'cancel: '
::
=; hash=@t
(met 3 hash)^hash
(crip "0x{((x-co:co 65) keccak)}")
::
~
==
?~ addr=(verify-sig:lib sig message)
~? lverb [dap.bowl %cancel-sig-fail]
[~ state]
=^ time pending
=| nep=(list pend-tx)
|- ^- [(unit time) _nep]
?~ pending [~ (flop nep)]
?: =(keccak (hash-raw-tx:lib raw-tx.i.pending))
[`time.i.pending (weld (flop nep) t.pending)]
$(pending t.pending, nep [i.pending nep])
?~ time
~? lverb [dap.bowl %weird-tx-not-pending]
[~ state]
:- ~
%_ state
history
=+ txs=(~(got by history) u.addr)
=. txs +:(del:orh txs u.time)
%+ ~(put by history) u.addr
%^ put:orh txs
u.time
[ship %cancelled keccak l2-tx]
==
:: +take-tx: accept submitted l2 tx into the :pending list
::
++ take-tx
|= =pend-tx
^- (quip card _state)
=* ship ship.from.tx.raw-tx.pend-tx
=/ [exceeded=? next-quota=@] (quota-exceeded ship)
?: exceeded [~ state]
=^ [gud=? cards-1=(list update)] state
(try-apply pre [force raw-tx]:pend-tx)
=^ cards-2 history
(update-history [pend-tx]~ ?:(gud %pending %failed))
?. gud
:_ state
:: %point and (%failed) %tx updates
::
(emit cards-1)
=: pending (snoc pending pend-tx)
ship-quota (~(put by ship-quota) ship next-quota)
==
:: toggle derivation
::
:_ state(derive ?:(derive | derive))
;: welp
(emit cards-1) :: %point updates
(emit cards-2) :: %tx updates
::
?. derive ~
:: defer updating predicted naive/ownership state from canonical
::
[(wait:b:sys /predict (add update-rate now.bowl))]~
==
::
++ timer
|%
:: +set-roller: %wait until next whole :frequency
::
++ set-roller
^- [=card =time]
=+ time=(mul +((div now.bowl frequency)) frequency)
[(wait:b:sys /timer time) time]
:: +set-roller: %wait until next whole :slice
::
++ set-quota
|= slice=@dr
^- [=card =time]
=+ time=(mul +((div now.bowl slice)) slice)
[(wait:b:sys /quota-timer time) time]
--
:: +on-timer: every :frequency, freeze :pending txs roll and start sending it
::
++ on-timer
^- (quip card _state)
=^ updates-1 state
(predicted-state canonical-state)
=^ cards state
?: =(~ pending) [~ state]
?~ next-nonce
~? lverb [dap.bowl %missing-roller-nonce] [~ state]
:: this guarantees that next-nonce is only incremented
:: when the thread that's sending the previous batch
:: has come back and confirms that it was sent to L1
::
?: out-of-sync
:: this would postpone sending the batch for a whole "frequency"
:: TODO: set up a timer to retry this in ~mX ?
::
~? lverb [dap.bowl %nonce-out-sync] [~ state]
=/ nonce=@ud u.next-nonce
=^ updates-2 history (update-history pending %sending)
=: pending ~
derive &
next-nonce `+(u.next-nonce)
::
sending
%^ put:ors sending
[get-address nonce]
[0 | (turn pending (cork tail (cork tail tail)))]
::
finding
%- ~(gas by finding)
%+ turn pending
|= pend-tx
(hash-raw-tx:lib raw-tx)^[time address nonce]
==
:_ state
;: welp
(emit updates-1)
(emit updates-2)
(send-roll get-address nonce)
==
=^ card next-batch set-roller:timer
[[card cards] state]
:: +on-quota-timer: resets tx quota for all ships
::
++ on-quota-timer
^- (quip card _state)
=^ card next-slice (set-quota:timer slice)
:- [card]~
state(ship-quota *(map ship @ud))
::
++ update-history
|= [txs=(list pend-tx) =status]
^- [(list update) _history]
%+ roll txs
|= [pend-tx ups=(list update) sih=_history]
=/ =roll-tx
:* ship.from.tx.raw-tx
status
(hash-raw-tx:lib raw-tx)
(l2-tx +<.tx.raw-tx)
==
=/ txs=(tree hist-tx)
?~ txs=(~(get by sih) address) ~
u.txs
=? txs ?=(^ txs) +:(del:orh txs time)
:- (snoc ups tx+[address roll-tx])
%+ ~(put by sih) address
(put:orh txs [time roll-tx])
:: +get-nonce: retrieves the latest nonce
::
++ get-nonce
|= [pk=@ =wire]
^- (list card)
?~ endpoint ~?(lverb [dap.bowl %no-endpoint] ~)
(start-thread:spider wire [%roller-nonce !>([u.endpoint pk])])
::
++ quota-exceeded
|= =ship
^- [exceeded=? next-quota=@ud]
=/ quota=(unit @ud) (~(get by ship-quota) ship)
=/ allow=(unit (unit @ud)) (~(get by allowances) ship)
?~ quota
:_ 1
?~ allow |
?~(u.allow | =(u.u.allow 0))
:_ +(u.quota)
?~ allow
(gte u.quota quota.state)
:: ship has been whitelisted ("?~ u.allow" means no quota restrictions)
::
?~(u.allow | (gte u.quota u.u.allow))
:: +out-of-sync: checks if the previous nonce has been sent
::
++ out-of-sync
^- ?
?~ newest-batch=(ram:ors sending) |
!=(sent.val.u.newest-batch &)
:: +on-out-of-sync
::
++ on-out-of-sync
|= [nonce=@ud failed-nonce=@ud]
:: we only care about nonces >= than the one that failed
::
=/ failed-sending=(list [l1-tx-pointer send-tx])
%- tap:ors
:: (range exclusive)
::
(lot:ors sending [`[get-address (dec failed-nonce)] ~])
=/ confirmed-sending=_sending
(lot:ors sending [~ `[get-address failed-nonce]])
=/ [nes=_sending nif=_finding sih=_history]
%- tail
%+ roll failed-sending
|= $: [p=l1-tx-pointer q=send-tx]
new-nonce=_nonce
sending=_confirmed-sending
finding=_finding
history=_history
==
|^
=* nonce nonce.p
=* txs txs.q
:: TODO: this shouldn't be needed
?: (lth nonce.p failed-nonce)
~& ["weird case" nonce+nonce.p]
[new-nonce sending finding history]
:+ +(new-nonce)
update-sending
process-l2-txs
::
++ update-sending
(put:ors sending [p(nonce new-nonce) q(sent %.n)])
::
++ process-l2-txs
%+ roll txs.q
|= [=raw-tx:naive nif=_finding sih=_history]
=/ =keccak (hash-raw-tx:lib raw-tx)
|^
?~ val=(~(get by nif) keccak)
[nif sih]
?. ?=(^ u.val) [nif sih]
:- (update-finding u.val)
(update-history time.u.val address.u.val)
::
++ update-finding
|= val=[time l1-tx-pointer]
^+ nif
(~(put by nif) keccak val(nonce.+ new-nonce))
::
++ update-history
|= [=time =address:ethereum]
^+ sih
=* ship ship.from.tx.raw-tx
=/ l2-tx (l2-tx +<.tx.raw-tx)
=/ =roll-tx [ship %sending keccak l2-tx]
=+ txs=(~(got by sih) address)
=. txs +:(del:orh txs time)
%+ ~(put by sih) address
(put:orh txs [time roll-tx])
--
--
=: sending nes
finding nif
history sih
next-nonce `+(nonce)
==
[(send-roll get-address nonce) state]
:: +send-roll: start thread to submit roll from :sending to l1
::
++ send-roll
|= [=address:ethereum =nonce:naive]
^- (list card)
:: if this nonce isn't in the sending queue anymore, it's done
::
?. (has:ors sending [address nonce])
~? lverb [dap.bowl %done-sending [address nonce]]
~
?~ endpoint
~? lverb [dap.bowl %no-endpoint]
~
:: start the thread, passing in the l2 txs to use
:: TODO should go ahead and set resend timer in case thread hangs, or nah?
::
%+ start-thread:spider
/send/(scot %ux address)/(scot %ud nonce)
:- %roller-send
!> ^- rpc-send-roll
:* u.endpoint
contract
chain-id
pk
nonce
::
=< [next-gas-price txs]
(got:ors sending [address nonce])
==
:: +on-batch-result: await resend after thread success or failure
::
++ on-batch-result
|= [=address:ethereum nonce=@ud result=(each @ud [term @t])]
^- (quip card _state)
:: print error if there was one
::
~? ?=(%| -.result) [dap.bowl %send-error +.p.result]
=/ =send-tx (got:ors sending [address nonce])
=? sending ?=(%& -.result)
%^ put:ors sending
[address nonce]
:: update gas price for this tx in state
:: and set it as sent to L1
::
send-tx(next-gas-price p.result, sent &)
:_ state
?: ?| ?=(%& -.result)
:: a general error shouldn't innitiate
:: the out-of-sync nonce thread
::
?=([%| %error *] result)
:: this accounts for a resend with higher gas
:: for a previous nonce, so we shouldn't start
:: the out-of-sync nonce thread
::
?& sent.send-tx
?=([%| %not-sent *] result)
== ==
:_ ~
:: resend the l1 tx in five minutes
::
%+ wait:b:sys
/resend/(scot %ux address)/(scot %ud nonce)
(add resend-time now.bowl)
:: TODO: this only accounts for the case where the nonce is out of sync,
:: reaching this because of lower funds needs to be addressed manually
::
?> ?=(%not-sent -.p.result)
(get-nonce pk.state /refresh-nonce/(scot %ud nonce))
:: +on-naive-diff: process l2 tx confirmations
::
++ on-naive-diff
|= =diff:naive
^- (quip card _state)
?. |(?=(%point -.diff) ?=(%tx -.diff))
[~ state]
=; [cards=(list card) =_state]
:_ state(derive ?:(derive | derive))
%+ weld cards
?. derive ~
:: defer updating predicted naive/ownership state from canonical
::
[(wait:b:sys /predict (add update-rate now.bowl))]~
::
?: ?=(%point -.diff) [~ state]
?> ?=(%tx -.diff)
=/ =keccak (hash-raw-tx:lib raw-tx.diff)
?~ wer=(~(get by finding) keccak)
:: tx not submitted by this roller
::
[~ state]
?@ u.wer
~? &(?=(%confirmed u.wer) ?=(~ err.diff))
[dap.bowl %weird-double-confirm from.tx.raw-tx.diff]
[~ state]
=* nonce nonce.u.wer
=* address address.u.wer
=* ship ship.from.tx.raw-tx.diff
=* time time.u.wer
=* tx tx.raw-tx.diff
=/ l2-tx (l2-tx +<.tx)
:: remove the tx from the sending map
::
=. sending
?~ sen=(get:ors sending [get-address nonce])
~? lverb [dap.bowl %weird-double-remove nonce+nonce]
sending
?~ nin=(find [raw-tx.diff]~ txs.u.sen)
~? lverb [dap.bowl %weird-unknown nonce+nonce]
sending
=. txs.u.sen (oust [u.nin 1] txs.u.sen)
?~ txs.u.sen
~? lverb [dap.bowl %done-with-nonce [get-address nonce]]
=^ * sending
(del:ors sending [get-address nonce])
sending
^+ sending
(put:ors sending [get-address nonce] u.sen)
:: update the finding map with the new status
::
=. finding
%+ ~(put by finding) keccak
?~ err.diff %confirmed
:: if we kept the forced flag around for longer, we could notify of
:: unexpected tx failures here. would that be useful? probably not?
:: ~? !forced [dap.bowl %aggregated-tx-failed-anyway err.diff]
%failed
::
=^ updates history
%+ update-history
[| address time raw-tx.diff]~
?~(err.diff %confirmed %failed)
[(emit updates) state]
::
--