shrub/sys/parv.hoon

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!: :: /sys/arvo
:: :: !%reference/2
:: %arvo: arvo microkernel.
::
=< :: this lifecycle wrapper makes the arvo door
:: (multi-armed core) look like a gate (function
:: or single-armed core), to fit urbit's formal
:: lifecycle function. a practical interpreter
:: can ignore it.
::
|= {now/@da ovo/ovum}
^+ .
~> %slog.[0 leaf+"arvo-event"]
.(+> +:(poke now ovo))
=>
:: :: ::
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:::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: (1) public molds
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:: :: ::
|%
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++ arms (map chip dope) :: stated identity
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++ bait :: analysis state
$: now/@da :: date
eny/@uvJ :: entropy
sky/roof :: namespace
== ::
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++ card {p/@tas q/*} :: tagged event
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++ case :: version
$% {$da p/@da} :: date
{$tas p/@tas} :: label
{$ud p/@ud} :: sequence
== ::
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++ chip :: standard identity
$? $giv :: given name
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$fam :: surname
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$had :: fictitious name
$mid :: middle name
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$gen :: generational suffix
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== ::
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++ desk @tas :: ship desk case spur
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++ dope (pair @tas @t) :: term/unicode pair
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++ duct (list wire) :: causal history
++ ovum (pair wire card) :: input or output
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++ plum (pair term noun) :: deep file
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++ ruby @pG :: 64-bit passcode
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++ roof :: namespace
$- $: lyc/(unit (set ship)) :: leakset
car/term :: perspective
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bem/beam :: path
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== ::
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%- unit :: ~: unknown
%- unit :: ~ ~: invalid
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cask :: marked vase
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:: ::
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++ ship @p :: network identity
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++ wire path :: cause
-- =>
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:: :: ::
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: (2) state molds
:: :: ::
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|%
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++ evil :: evolvable state
|* {span/_span twig/_twig vase/_vase} :: injected molds
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|% ::
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++ boot (pair (unit hoof) hoof) :: hoon/arvo boot src
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++ hoof @t :: hoon source file
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++ mall :: any arvo version
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$? {$293 mast} :: kelvin 293, current
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== ::
++ mast :: system state
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$: $= gut :: abdomen
$: run/(list move) :: worklist
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out/(list ovum) :: unix output
but/(unit boot) :: reboot
== ::
$= hax :: thorax
$: sac/worm :: compiler cache
kit/toys :: common nouns
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== ::
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$= bug :: insect brain
$: noc/@ta :: process nonce
ver/(qual @tas @ud @ud @ud) :: vendor/version
== ::
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$= mal :: mammal brain
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$: off/? :: not yet booted
lac/? :: not verbose
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eny/@uvJ :: 512-bit entropy
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yor/vase :: %york, vane models
zus/vase :: %zuse, user lib
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van/(map term vase) :: vanes
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== ::
$= rep :: reptile brain
$: orb/@p :: ship
nym/arms :: name information
roy/(map @ud ruby) :: start secrets
fat/(map path (pair term noun)) :: boot filesystem
== == ::
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++ mill (each vase milo) :: vase or metavase
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++ milo {p/* q/*} :: untyped metavase
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++ move (pair duct part) :: vane move
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++ part :: arvo vane move
$% {$give p/mill} :: vane "return"
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{$pass p/wire q/(pair term mill)} :: vane "call"
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== ::
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++ toys :: reflexive constants
$: typ/span :: -:!>(*span)
duc/span :: -:!>(*duct)
pah/span :: -:!>(*path)
mev/span :: -:!>([%meta *vase])
== ::
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++ worm :: compiler cache
$: nes/(set ^) :: ++nest
pay/(map (pair span twig) span) :: ++play
mit/(map (pair span twig) (pair span nock)) :: ++mint
== ::
-- ::
++ live (evil) :: modern molds
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++ vane :: kernel module
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$_ ^? :: totally decorative
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|% ::
++ load $-(* _+>) :: reload
++ stay ** :: preserve
++ work ::
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|_ bait
++ doze *@da
++ scry roof
++ spin
|_ $: :: hen: cause of this
:: moz:
::
hen/duct
moz/(list move)
==
++ call
|= fav/card
^+ +>
!!
++ take
|= {tea/wire fav/card}
^+ +>
!!
--
--
--
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++ vile (evil typo twit vise) :: old molds
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++ wasp :: arvo effect
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$% {$walk ~} :: finish mammal brain
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{$what p/(list (pair path (pair term noun)))} :: put reptile files
{$whom p/@p q/arms r/(map @ud ruby)} :: put reptile identity
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{$woke ~} :: finish booting
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== ::
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-- =>
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|%
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:: :: ::
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: (2) engines
:: :: ::
|%
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:: :: ++le
++ le :: deep engine
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=+ [now=*@da mast:live]
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=* ::
:: sys: system state
::
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sys ->
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|%
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:: :: ++abet:le
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++ abet :: complete cycle
^- {(pair (unit (pair @t @t)) (list move)) _sys}
:- [but.gut flop
[[but.gut (flop out.gut) sys(out.gut ~)]
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:: :: ++emit:le
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++ emit :: emit move
|= mov/move
+>(run.gut [mov run.gut])
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:: :: ++pike:le
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++ pike :: event to %pass
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|= $: :: way: event route
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:: now: date
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:: ovo: input ovum
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::
lay/@tas
now/@da
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ovo/ovum
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==
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^+ +>
:: print event if in verbose mode
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::
~? &(!lac.mal !=(%belt -.q.ovo)) [%unix -.q.ovo p.ovo]
::
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:: vax: card as vase
::
=^ vax +> (open q.ovo)
::
:: hen: fundamental cause (unix input channel)
:: tea: local cause (unix i/o)
:: mov: action (pass into event route)
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::
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=* hen `duct`[p.ovo ~]
=* tea `wire`[%$ %unix ~]
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=* mov `move`[%pass tea way %& vax]
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::
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:: push move on stack, and work.
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::
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work:(emit mov)
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:: :: ++open:le
++ open :: input card to move
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|= fav/card
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^- {vase _+>}
?< off.mal
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::
:: gat: mold for correct unix task
:: vax: molded card
::
=^ gat sac.gut (~(slap wa sac.gut) bud.mal [%limb %unix-task])
=/ vax (slam gat [%noun fav])
~| [%le-open -.fav]
?> =(fav q.vax)
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[vax +>.$]
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:: :: ++poke:le
++ poke :: event from unix
|= $: :: now: event date
:: ovo: event
::
now/@da
ovo/ovum
==
^+ sys
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~| [%poke -.ovo]
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::
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:: the event is either vane input or an arvo action (wasp).
:: we default to treating it as a wasp.
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::
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:: XX: this logic will be directed in the event structure itself.
::
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?+ -.ovo
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=/ wap ((hard wasp) ovo)
=* tea `wire`[%$ %init ~]
=* hen `duct`[tea [p.ovo ~]]
=* mov `move`[hen %give %& !>(wap)]
(emit mov)
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::
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$belt (pike %dill now ovo)
$blew (pike %dill now ovo)
$born (pike %eyre now ovo)
$hail (pike %dill now ovo)
$hear (pike %ames now ovo)
$hook (pike %dill now ovo)
$into (pike %clay now ovo)
$they (pike %eyre now ovo)
$this (pike %eyre now ovo)
$thus (pike %eyre now ovo)
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==
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:: :: ++re:le
++ re ::
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:: :: ++va:le
++ va :: vane engine
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|_ $: :: way: vane name, eg `%ames`
:: vax: vane, or vane builder if `off.mal`
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::
way/term
vax/vase
==
:: :: ++va-abet:va:le
++ va-abet :: resolve
^+ ..va
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..va(van.mal (~(put by van.mal) way vax))
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:: :: ++va-abut:va:le
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++ va-apex :: boot or reboot
|= $: way/term
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src/hoof
==
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^+ +>
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=. ^way way
=+ bun (~(get by van.mal) way)
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?~ bun
(va-create src)
(va-update(vax u.bun) src)
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:: :: ++va-active:va:le
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++ va-work :: activated vane
|= bait
::
:: wok: working vase
::
=/ wok ^- vase
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!!
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|%
:: :: ++doze:va-work:va:le
++ doze :: request wakeup at
^- (unit @da)
!!
:: :: ++scry:va-work:va:le
++ scry ::
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|= $: :: lyc: set of outputs
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::
lyc/(unit (set ship))
car/term
bem/beam
==
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^- (unit (unit cask))
!!
:: :: ++walk:va-work:va:le
++ walk ::
|= hen/duct
::
:: fox: running vase
::
=/ fox ^- vase
!!
|%
:: :: ++abet:walk:va-work:
++ abet ::
^- {(list move) _..va-work}
!!
:: :: ++call:walk:va-work:
++ call ::
|= hil/mill
^+
--
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--
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:: :: ++va-create:va:le
++ va-create :: compile new vase
|= src/hoof
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^+ +>
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:: no existing vase; compile new vase
::
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~& [%vase-compile way `@p`(mug src)]
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=. vax (slam zus.mal (ream src))
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?: off
+>
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va-settle
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:: :: ++va-settle:va:le
++ va-settle :: initialize ship
^+ +>
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.(vax (slam vax !>(orb.rep)))
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:: :: ++va-update
++ va-update :: replace existing
|= src/hoof
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^+ +>
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?: off
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:: replacing unbooted, weird but ok
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::
(va-create src)
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::
:: out: saved state from old vane
::
=+ out=(slap vax [%limb %stay])
::
:: replace `vax` with new empty vane
::
=. +>.$ (va-create src)
::
:: initialize new vane with old state
::
+>.$(vax (slam (slap vax [%limb %come]) out))
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--
:: :: ++vale:le
++ vale :: load existing vane
|= lay/term
~(. va lay (~(got by van.mal lay)))
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:: :: ++warp:le
++ warp :: arvo effect
|= {hen/duct wap/wasp}
^+ +>
?+ -.wap !!
$what (what hen p.wap)
$whom (whom hen p.wap q.wap r.wap)
==
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:: :: ++wile:le
++ wile :: mill as card
|= hil/mill
^+ card
::
:: XX actually check card nature
::
?- -.hil
$| ((hard card) q.p.hil)
$& ((hard card) q.p.hil)
==
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:: :: ++wilt:le
++ wilt :: deep file as source
|= pet/plum
^- hoof
?>(?=({$hoon @tas} pet) +.pet)
:: :: ++wise:le
++ wise :: load/reload vane
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|= {lay/term way/term src/hoof}
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^+ +>
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va-abet:(va-apex:va lay way src)
=* van va-abut:va(lay lay, way way)
va-abet:(va-apex:va-abut:va(lay lay, way way
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=+ bun=(~(get by van) lay)
?~ bun
::
:: no existing vase; compile new vase
::
~& [%vase-compile lay way `@p`(mug src)]
=+ vax=(slam zus.mal (ream src))
::
:: if we are already live, activate new vase
::
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:: :: ++what:le
++ what :: write deep storage
|= {hen/duct fal/(list (pair path plum))}
^+ +>
:: dev: collated `fal`
::
=+ =| dev
$: :: use: non-system files
:: new: system installs
:: rep: system replacements
::
use/(map path plum)
new/(map path plum)
rez/(map path plum)
==
|- ^+ dev
?~ fal dev
::
:: pax: path of this file
:: pet: value of this file
::
=+ [pax pet]=[p q]:i.fal
=. fal t.fal
::
:: old: current value in deep storage
::
=+ old=(~(get by fat.rep) pax)
::
:: ignore unchanged data
::
?: =(old `pet) $
::
:: classify as user, system install or replacement
::
?. ?=({$sys *} pax)
$(use (~(put by use.dev) pax pet)
?~ old
$(new (~(put by new.dev) pax pet))
$(rez (~(put by rez.dev) pax pet))
::
:: adopt user changes, which have no systems impact
::
=. fat.rep (~(uni by fat.rep) use.rez)
::
:: but: kernel reboot operation, if any
::
=/ but
^- (unit boot)
=/ hun=(~(get by rez.dev) /sys/hoon)
=/ arv=(~(get by rez.dev) /sys/arvo)
?~ hun
?~ arv ~
::
:: light reboot, arvo only
::
`[~ (wilt u.arv)]
::
:: heavy reboot, hoon and arvo
::
`[`(wilt hun) (wilt q:?^(arv u.arv (~(got by fat.rep) /sys/arvo)))]
?^ but
:: stop working and set up reboot
::
%= +>.$
:: set boot hook for termination
::
but.gut ?>(=(~ but.gut) but)
::
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:: execute write after reboot
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::
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run.rep :: syt: all systems changes
::
=* syt (~(tap by (~(uni by rez.dev) new.dev)))
:_ run.rep
`move`[hen %give %& !>([%what syt])]
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::
:: delete reboot source files from deep
:: storage, so install causes vane upgrade,
:: and *does not* cause repeat kernel upgrade.
::
fat.rep ?~ p.but fat.rep
(~(del by (~(del by fat.rep) /sys/hoon) /sys/arvo))
==
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:: keep working after vane upgrades
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::
=< work
::
:: job: plan for upgrading
::
=/ job
^- $: yor/(unit hoof)
zus/(unit hoof)
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vat/(list (pair term hoof))
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==
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=- [yor zus (~(tap by van))]
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:: yor: reload shared structures
:: zus: reload shared library
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:: vat: replacement map
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::
=/ yor (bind (~(get by rez.dev) /sys/york) wilt)
=/ zus (bind (~(get by rez.dev) /sys/zuse) wilt)
::
:: %york is the subject of %zuse
::
=. zus ?^(zus zus ?~(yor ~ `(wilt (~(get by fat.rep) /sys/zuse))))
::
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:: vat: all vane upgrades, as [initial name source]
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::
=/ van
:: zyr: all system file replacements
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:: van: accumulated upgrades
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::
=/ zyr (~(tap by rez.dev))
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=| van (map @tas hoof)
|- ^+ van
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?^ zyr
:: mor: process rest of `zyr`
::
=/ mor $(zyr t.zyr)
?. ?=({$sys $van @tas $~} p.i.zyr)
mor
::
:: replaced vane in `/sys/vane/*/[nam]`
::
=* nam `term`i.t.t.p.i.zyr
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:_(mor [nam (wilt q.i.zyr)])
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::
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:: reload current vanes if needed
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::
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?. |((~(has by new.dev) /sys/hoon) ?=(^ zus))
::
:: we didn't replace compiler, %york or %zuse
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van
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::
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:: also reboot any vanes not already rebooted
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::
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%- ~(gas by van)
%+ skip
%+ turn (~(tap by van.mal))
|= {way/term src/hoof}
[way (wilt (~(got by fat.rep) [%sys %van way ~]))
|= {way/term src/hoof}
(~(has in van) way)
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::
:: upgrade %york, vane shared structures
::
=> ?~ yor .
%= .
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yor.mal ~& [%york-boot `@p`(mug u.yor.job)]
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(slap !>(..arms) (ream u.yor.job))
==
::
:: upgrade %zuse, vane shared libraries
::
=> ?~ zus .
%= .
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zus.mal ~& [%zuse-boot `@p`(mug u.zus.job)]
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(slap yor.mal (ream u.zus.job))
==
::
:: upgrade all indicated vanes
::
|- ^+ +>.^$
?~ van.job +>.^$
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~& [%vane-boot p.i.van.job `@p`(mug q.i.van.job)]
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$(van.job t.van.job, +>.^$ (wise i.van.job))
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::
++ unix :: ++unix:le
|= {hen/duct fav/card} :: return to unix
^+ +>
?> ?=({* ~} hen)
+>(out.gut [[i.hen fav] out.gut])
:: :: ++send:le
++ pass ::
|= {hen/duct way/term hil/mill}
!!
::
++ give
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:: :: ++work:le
++ work :: main loop
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=* ken .
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^+ ken
::
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:: no-op if stack is empty
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::
?~ run.gut ken
::
:: mov: top move on stack
:: hen: cause of move
:: act: action in move
::
=* mov `move`i.run.gut
=* hen `duct`p.mov
=* egg `part`q.mov
::
:: pop top move off stack
::
=. run.gut t.run.gut
::
:: interpret top move
::
?- -.egg
::
:: %give: event return
::
$give
::
:: the duct can't be empty
::
?> ?=(^ p.mov)
::
:: tea: top wire on duct
:: hen: rest of duct
::
=/ tea i.p.mov
=* hen t.p.mov
::
:: route gift by wire
::
?: ?=({%$ *} tea)
::
:: gift returned on arvo wire
::
?: ?=({%unix $~} t.tea)
::
:: gift returned to unix i/o
::
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(unix hen (wile p.egg))
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?> ?=({%arvo $~} t.tea)
::
:: gift returned to arvo control
::
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(warp hen ((hard wasp) (wile p.egg)))
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::
:: gift returned to calling vane
::
?> ?=({@tas *} tea)
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(give hen i.tea t.tea p.egg)
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::
:: %pass: event call
::
$pass
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(pass [p.egg hen] p.q.egg q.egg)
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==
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--
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--
:: :: ::
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: (3) surface
:: :: ::
|_
:: :: ++come
++ come :: upgrade from old
|=
^- {(list ovum) _+>}
~& %hoon-come
=^ rey +>+ (^come +<)
[rey +>.$]
::
++ keep |=(* (^keep ((hard {@da path}) +<))) :: 4
++ load |= {@ (list ovum) pane} :: 86
^- {(list ovum) _+>}
~& %hoon-load
=^ rey +>+ (^load +<)
[rey +>.$]
++ peek |=(* (^peek ((hard {@da path}) +<))) :: 87
++ poke |= * :: 42
^- {(list ovum) *}
=> .(+< ((hard {now/@da ovo/ovum}) +<))
=^ ova +>+ (^poke now ovo)
|- ^- {(list ovum) *}
?~ ova
[~ +>.^$]
?: ?=($verb -.q.i.ova)
$(ova t.ova, lac !lac)
?: ?=($veer -.q.i.ova)
$(ova t.ova, +>+.^$ (veer now q.i.ova))
?: ?=($velo -.q.i.ova)
(fall (velo now t.ova ({@ @} +.q.i.ova)) [~ +>.^$])
?: ?=(?($init $veal) -.q.i.ova)
=+ avo=$(ova t.ova, +>+.^$ (boot (@ +.q.i.ova)))
[[i.ova -.avo] +.avo]
?: ?=($mass -.q.i.ova)
=+ avo=$(ova t.ova)
:_ +.avo
:_ -.avo
%= i.ova
q.q
:- %userspace
:- %|
:~ hoon+`pit
zuse+`mast
hoon-cache+`p.niz
q.q.i.ova
dot+`.
==
==
=+(avo=$(ova t.ova) [[i.ova -.avo] +.avo])
++ wish |=(* (^wish ((hard @ta) +<))) :: 20
--