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clay: remove fusion mount and queuing infrastructure

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This commit is contained in:
Philip Monk 2020-05-12 02:09:41 -07:00
parent 4e1bac8946
commit 6e10a7439a
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1 changed files with 12 additions and 221 deletions
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233
pkg/arvo/sys/vane/clay.hoon
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@ -143,8 +143,7 @@
:: location).
:: -- `hez` is the unix duct that %ergo's should be sent to.
:: -- `cez` is a collection of named permission groups.
:: -- `cue` is a queue of requests to perform in later events.
:: -- `tip` is the date of the last write; if now, enqueue incoming requests.
:: -- `pud` is an update that's waiting on a kernel upgrade
::
++ raft :: filesystem
$: rom=room :: domestic
@ -153,28 +152,9 @@
mon=(map term beam) :: mount points
hez=(unit duct) :: sync duct
cez=(map @ta crew) :: permission groups
cue=(qeu [=duct =task:able]) :: queued requests
act=active-write :: active write
pud=(unit [=desk =yoki]) :: pending update
== ::
::
:: Currently active write
::
++ active-write
%- unit
$: hen=duct
req=task:able
$= eval-data
$% [%mount mount=eval-form:eval:mount-clad]
==
==
::
:: The clad monad for mounts.
::
:: Just a new mount point and mime cache.
::
++ mount-clad (clad ,[new-mon=(pair term beam) mim=(map path mime)])
::
:: Object store.
::
:: Maps of commit hashes to commits and content hashes to content.
@ -651,79 +631,6 @@
|= [=wove ducts=(set duct)]
[ducts (print-wove wove)]
::
:: Mount a beam to unix
::
++ mount
|= $: our=ship
syd=desk
wen=@da
hez=duct
dom=dome
ran=rang
==
|^
|= [pot=term bem=beam mon=(map term beam)]
=/ m mount-clad
^- form:m
=/ old-mon (~(get by mon) pot)
?^ old-mon
(clad-fail %already-mounted >u.old-mon< ~)
=. mon (~(put by mon) pot bem)
;< changes=(map path (unit mime)) bind:m (cast-to-mime bem)
;< ~ bind:m (ergo changes mon)
=/ mim (apply-changes-to-mim:util mim.dom changes)
(pure:m [pot bem] mim)
::
++ sutil (state:util dom dom ran)
:: Initializes a new mount point.
::
++ cast-to-mime
|= bem=beam
=/ m (clad ,(map path (unit mime)))
^- form:m
=* pax s.bem
=/ =aeon (need (case-to-aeon-before:sutil wen r.bem))
=/ must
=/ all (turn ~(tap by q:(aeon-to-yaki:sutil aeon)) head)
(skim all |=(paf/path =(pax (scag (lent pax) paf))))
?~ must
(pure:m ~)
;< ~ bind:m
%+ just-do /ergoing
:* %f %build live=%.n %list
^- (list schematic:ford)
%+ turn `(list path)`must
|= a/path
:- [%$ %path !>(a)]
:^ %cast [our %home] %mime
=+ (need (need (read-x:sutil & aeon a)))
?: ?=(%& -<)
[%$ p.-]
(lobe-to-schematic:sutil [our %home] a p.-)
==
;< res=made-result:ford bind:m expect-ford
?: ?=([%incomplete *] res)
(clad-fail %ergo-fail-incomplete leaf+"clay ergo incomplete" tang.res)
?. ?=([%complete %success *] res)
(clad-fail %ergo-fail leaf+"clay ergo failed" message.build-result.res)
%- pure:m
%- malt ^- mode
%+ turn (made-result-to-cages:util res)
|= [pax=cage mim=cage]
?. ?=($path p.pax)
~|(%ergo-bad-path-mark !!)
:- ;;(path q.q.pax)
?. ?=($mime p.mim)
~
`;;(mime q.q.mim)
::
:: Send changes to unix
::
++ ergo
|= [changes=(map path (unit mime)) mon=(map term beam)]
(give-ergo:util hez our syd mon changes)
--
::
:: A simple foreign request.
::
++ foreign-request
@ -3400,53 +3307,6 @@
..start-request
(duce for u.new-sub)
::
:: Continue mounting
::
++ take-mount
|= =sign
^+ +>
=/ m mount-clad
?~ act
~|(%no-active-write !!)
:: ?. ?=(%mount -.eval-data.u.act)
:: ~|(%active-not-mount !!)
=^ r=[moves=(list move) =eval-result:eval:m] mount.eval-data.u.act
(take:eval:m mount.eval-data.u.act hen /mount/[syd] now ran sign)
=> .(+>.$ (emil moves.r)) :: TMI
?- -.eval-result.r
%next +>.$
%fail (fail-mount err.eval-result.r)
%done (done-mount value.eval-result.r)
==
::
:: Don't release effects or apply state changes; print error
::
++ fail-mount
|= err=(pair term tang)
^+ +>
%- (slog leaf+"mount failed" leaf+(trip p.err) q.err)
finish-write
::
:: Release effects and apply state changes
::
++ done-mount
|= [new-mon=(pair term beam) mim=(map path mime)]
^+ +>
=: mon (~(put by mon) new-mon)
mim.dom mim
==
finish-write
::
:: Start next item in write queue
::
++ finish-write
^+ .
=. act ~
?~ cue
.
=/ =duct duct:(need ~(top to cue))
(emit [duct %pass /queued-request %b %wait now])
::
:: Continue foreign request
::
++ take-foreign-request
@ -4580,48 +4440,6 @@
?< ?=(%crud -.req)
[%crud -.req tang.u.dud]
::
:: only one of these should be going at once, so queue
::
?: ?=(?(%info %merg %mont) -.req)
:: If there's an active write or a queue, enqueue
::
:: We only want one active write so each can be a clean
:: transaction. We don't intercept `%into` because it
:: immediately translates itself into one or two `%info` calls.
::
?: |(!=(~ act.ruf) !=(~ cue.ruf))
=. cue.ruf (~(put to cue.ruf) [hen req])
:: ~& :* %clall-enqueing
:: cue=(turn ~(tap to cue.ruf) |=([=duct =task:able] [duct -.task]))
:: ^= act
:: ?~ act.ruf
:: ~
:: [hen req -.eval-data]:u.act.ruf
:: ==
[~ ..^$]
:: If the last commit happened in this event, enqueue
::
:: Without this, two commits could have the same date, which
:: would make clay violate referential transparency.
::
=/ =desk +<.req
=/ =dojo (~(gut by dos.rom.ruf) desk *dojo)
?: =(0 let.dom.dojo)
(handle-task hen req)
=/ sutil (state:util dom.dojo dom.dojo ran.ruf)
=/ last-write=@da t:(aeon-to-yaki:sutil let.dom.dojo)
?: !=(last-write now)
(handle-task hen req)
=. cue.ruf (~(put to cue.ruf) [hen req])
=/ wait-behn [hen %pass /queued-request %b %wait now]
[[wait-behn ~] ..^$]
(handle-task hen req)
::
:: Handle a task, without worrying about write queueing
::
++ handle-task
|= [hen=duct req=task:able]
^- [(list move) _..^$]
?- -.req
%boat
:_ ..^$
@ -4670,15 +4488,8 @@
[[[hen %slip %d %flog req] ~] ..^$]
::
%drop
~? =(~ act.ruf)
[%clay-idle cue-length=~(wyt in cue.ruf)]
~? ?=(^ act.ruf)
[%clay-cancelling hen -.req -.eval-data]:u.act.ruf
=. act.ruf ~
?~ cue.ruf
[~ ..^$]
=/ =duct duct:(need ~(top to cue.ruf))
[[duct %pass /queued-request %b %wait now]~ ..^$]
~& %clay-idle
[~ ..^$]
::
%info
?: ?=(%| -.dit.req)
@ -4904,13 +4715,6 @@
abet:(merge:den ali-ship ali-desk germ p.q.hin)
[mos ..^$]
::
?: ?=([%mount @ *] tea)
=* syd i.t.tea
=^ mos ruf
=/ den ((de our now ski hen ruf) our syd)
abet:(take-mount:den q.hin)
[mos ..^$]
::
?: ?=([%foreign-warp *] tea)
?> ?=(%writ +<.q.hin)
:_ ..^$
@ -5044,28 +4848,15 @@
?^ error.q.hin
[[hen %slip %d %flog %crud %wake u.error.q.hin]~ ..^$]
::
?: ?=([%tyme @ @ ~] tea)
=/ her (slav %p i.t.tea)
=/ syd (slav %tas i.t.t.tea)
=^ mos ruf
=/ den ((de our now ski hen ruf) her syd)
abet:wake:den
[mos ..^$]
::
=^ queued cue.ruf ~(get to cue.ruf)
::
=/ queued-duct=duct -.queued
=/ queued-task=task:able +.queued
::
:: ~& :* %clay-waking
:: queued-duct
:: hen
:: ?~(cue.ruf /empty -:(need ~(top to cue.ruf)))
:: ==
~| [%mismatched-ducts %queued queued-duct %timer hen]
?> =(hen queued-duct)
::
(handle-task hen queued-task)
?. ?=([%tyme @ @ ~] tea)
~& [%clay-strange-timer tea]
[~ ..^$]
=/ her (slav %p i.t.tea)
=/ syd (slav %tas i.t.t.tea)
=^ mos ruf
=/ den ((de our now ski hen ruf) her syd)
abet:wake:den
[mos ..^$]
::
:: handled in the wire dispatcher
::