mirror of
https://github.com/urbit/shrub.git
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692 lines
18 KiB
Plaintext
692 lines
18 KiB
Plaintext
/- spider
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/+ libstrand=strand, default-agent, verb, server, dbug
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=, strand=strand:libstrand
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~% %spider-top ..part ~
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|%
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+$ card card:agent:gall
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+$ thread thread:spider
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+$ tid tid:spider
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+$ input input:spider
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+$ yarn (list tid)
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+$ thread-form _*eval-form:eval:(strand ,vase)
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+$ trying ?(%build %none)
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+$ state
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$: starting=(map yarn [=trying =vase])
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running=(axal thread-form)
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tid=(map tid yarn)
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serving=(map tid [(unit @ta) =mark =desk])
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scrying=(jug tid [=wire =ship =path])
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==
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::
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+$ clean-slate-any
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$^ clean-slate-ket
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$% clean-slate-sig
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clean-slate-1
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clean-slate-2
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clean-slate-3
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clean-slate-4
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clean-slate-5
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clean-slate
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==
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::
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+$ clean-slate
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$: %6
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starting=(map yarn [=trying =vase])
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running=(list yarn)
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tid=(map tid yarn)
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serving=(map tid [(unit @ta) =mark =desk])
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scrying=(jug tid [wire ship path])
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==
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::
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+$ clean-slate-5
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$: %5
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starting=(map yarn [=trying =vase])
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running=(list yarn)
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tid=(map tid yarn)
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serving=(map tid [(unit @ta) =mark =desk])
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scrying=(map tid [ship path])
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==
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::
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+$ clean-slate-4
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$: %4
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starting=(map yarn [=trying =vase])
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running=(list yarn)
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tid=(map tid yarn)
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serving=(map tid [(unit @ta) =mark =desk])
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==
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::
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+$ clean-slate-3
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$: %3
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starting=(map yarn [=trying =vase])
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running=(list yarn)
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tid=(map tid yarn)
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serving=(map tid [@ta =mark =desk])
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==
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::
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+$ clean-slate-2
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$: %2
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starting=(map yarn [=trying =vase])
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running=(list yarn)
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tid=(map tid yarn)
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serving=(map tid [@ta =mark])
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==
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::
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+$ clean-slate-1
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$: %1
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starting=(map yarn [=trying =vase])
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running=(list yarn)
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tid=(map tid yarn)
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==
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::
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+$ clean-slate-ket
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$: starting=(map yarn [trying=?(%build %find %none) =vase])
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running=(list yarn)
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tid=(map tid yarn)
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==
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::
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+$ clean-slate-sig
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$: starting=~
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running=(list yarn)
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tid=(map tid yarn)
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==
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--
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::
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%- agent:dbug
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^- agent:gall
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=| =state
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=<
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%+ verb |
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~% %spider-agent ..bind-eyre ~
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|_ =bowl:gall
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+* this .
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spider-core +>
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sc ~(. spider-core bowl)
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def ~(. (default-agent this %|) bowl)
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bec byk.bowl(r da+now.bowl)
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::
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++ on-init
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^- (quip card _this)
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:_ this
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~[bind-eyre:sc]
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++ on-save clean-state:sc
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++ on-load
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|^
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|= old-state=vase
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=+ !<(any=clean-slate-any old-state)
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=? any ?=(^ -.any) (old-to-1 any)
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=? any ?=(~ -.any) (old-to-1 any)
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=^ upgrade-cards any
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(old-to-2 any)
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=. any (old-to-3 any)
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=. any (old-to-4 any)
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=. any (old-to-5 any)
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=. any (old-to-6 any)
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?> ?=(%6 -.any)
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::
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=. tid.state tid.any
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=/ yarns=(list yarn)
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%+ welp running.any
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~(tap in ~(key by starting.any))
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|- ^- (quip card _this)
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?~ yarns
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[~[bind-eyre:sc] this]
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=^ cards-1 state
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%. [(yarn-to-tid i.yarns) nice=%.n]
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:: the |sc core needs to now about the previous
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:: scrying state in order to send $yawns to %ames
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::
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%*(handle-stop-thread sc scrying.state scrying.any)
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=^ cards-2 this
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$(yarns t.yarns)
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[:(weld upgrade-cards cards-1 cards-2) this]
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::
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++ old-to-1
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|= old=clean-slate-ket
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^- clean-slate-1
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1+old(starting (~(run by starting.old) |=([* v=vase] none+v)))
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::
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++ old-to-2
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|= old=clean-slate-any
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^- (quip card clean-slate-any)
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?> ?=(?(%1 %2 %3 %4 %5 %6) -.old)
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?: ?=(?(%2 %3 %4 %5 %6) -.old)
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`old
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:- ~[bind-eyre:sc]
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:* %2
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starting.old
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running.old
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tid.old
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~
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==
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::
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++ old-to-3
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|= old=clean-slate-any
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^- clean-slate-any
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?> ?=(?(%2 %3 %4 %5 %6) -.old)
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?: ?=(?(%3 %4 %5 %6) -.old)
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old
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:* %3
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starting.old
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running.old
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tid.old
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(~(run by serving.old) |=([id=@ta =mark] [id mark q.byk.bowl]))
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==
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::
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++ old-to-4
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|= old=clean-slate-any
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^- clean-slate-any
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?> ?=(?(%3 %4 %5 %6) -.old)
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?: ?=(?(%4 %5 %6) -.old)
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old
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:* %4
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starting.old
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running.old
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tid.old
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(~(run by serving.old) |=([id=@ta =mark =desk] [`id mark q.byk.bowl]))
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==
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::
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++ old-to-5
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|= old=clean-slate-any
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^- clean-slate-any
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?> ?=(?(%4 %5 %6) -.old)
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?: ?=(?(%5 %6) -.old) old
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[%5 +.old(serving [serving.old ~])]
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::
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++ old-to-6
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|= old=clean-slate-any
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^- clean-slate
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?> ?=(?(%5 %6) -.old)
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?: ?=(%6 -.old) old
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:- %6
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%= +.old
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scrying
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%- ~(run by scrying.old)
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|= [=ship =path]
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%- ~(gas in *(set [wire ^ship ^path]))
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:: XX +keen:strandio used /keen as the default wire
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:: this assumes that any old thread used that as well
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::
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[/keen ship path]~
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==
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--
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::
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++ on-poke
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~/ %on-poke
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|= [=mark =vase]
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^- (quip card _this)
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?: ?=(%spider-kill mark)
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(on-load on-save)
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=^ cards state
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?+ mark (on-poke:def mark vase)
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%spider-input (on-poke-input:sc !<(input vase))
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%spider-start (handle-start-thread:sc !<(start-args:spider vase))
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%spider-inline (handle-inline-thread:sc !<(inline-args:spider vase))
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%spider-stop (handle-stop-thread:sc !<([tid ?] vase))
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%handle-http-request
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(handle-http-request:sc !<([@ta =inbound-request:eyre] vase))
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==
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[cards this]
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::
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++ on-watch
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~/ %on-watch
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|= =path
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^- (quip card _this)
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=^ cards state
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?+ path (on-watch:def path)
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[%thread @ *] (on-watch:sc t.path)
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[%thread-result @ ~] (on-watch-result:sc i.t.path)
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[%http-response *] `state
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==
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[cards this]
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::
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++ on-leave on-leave:def
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++ on-peek
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~/ %on-peek
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|= =path
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^- (unit (unit cage))
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?+ path (on-peek:def path)
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[%x %tree ~]
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``noun+!>((turn ~(tap of running.state) head))
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::
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[%x %starting @ ~]
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``noun+!>((~(has of running.state) (~(got by tid.state) i.t.t.path)))
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::
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[%x %saxo @ ~]
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``noun+!>((~(got by tid.state) i.t.t.path))
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==
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::
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++ on-agent
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~/ %on-agent
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|= [=wire =sign:agent:gall]
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^- (quip card _this)
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=^ cards state
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?+ wire !!
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[%thread @ *] (on-agent:sc i.t.wire t.t.wire sign)
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==
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[cards this]
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::
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++ on-arvo
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~/ %on-arvo
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|= [=wire =sign-arvo]
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^- (quip card _this)
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=^ cards state
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?+ wire (on-arvo:def wire sign-arvo)
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[%thread @ *] (handle-sign:sc i.t.wire t.t.wire sign-arvo)
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[%build @ ~] (handle-build:sc i.t.wire sign-arvo)
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[%bind ~] `state
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==
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[cards this]
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:: On unexpected failure, kill all outstanding strands
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::
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++ on-fail
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|= [=term =tang]
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^- (quip card _this)
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%- (slog leaf+"spider crashed, killing all strands: {<term>}" tang)
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(on-load on-save)
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--
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::
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~% %spider-helper ..card ~
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|_ =bowl:gall
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++ bec `beak`byk.bowl(r da+now.bowl)
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++ bind-eyre
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^- card
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[%pass /bind %arvo %e %connect [~ /spider] %spider]
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::
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++ new-thread-id
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|= file=term
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:((cury cat 3) file '--' (scot %uv (sham eny.bowl)))
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::
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++ handle-http-request
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~/ %handle-http-request
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|= [eyre-id=@ta =inbound-request:eyre]
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^- (quip card _state)
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?> authenticated.inbound-request
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=/ url
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(parse-request-line:server url.request.inbound-request)
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?> ?=([%spider @t @t @t @t ~] site.url)
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=* desk i.t.site.url
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=* input-mark i.t.t.site.url
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=* thread i.t.t.t.site.url
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=* output-mark i.t.t.t.t.site.url
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=/ =tid (new-thread-id thread)
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=. serving.state
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(~(put by serving.state) tid [`eyre-id output-mark desk])
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:: TODO: speed this up somehow. we spend about 15ms in this arm alone
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::
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=/ tube (convert-tube %json input-mark desk bowl)
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?> ?=(^ body.request.inbound-request)
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=/ body=json (need (de-json:html q.u.body.request.inbound-request))
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=/ input=vase (slop !>(~) (tube !>(body)))
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=/ boc bec
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=/ =start-args:spider [~ `tid boc(q desk, r da+now.bowl) thread input]
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(handle-start-thread start-args)
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::
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++ on-poke-input
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|= input
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=/ yarn (~(got by tid.state) tid)
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(take-input yarn ~ %poke cage)
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::
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++ on-watch
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|= [=tid =path]
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(take-input (~(got by tid.state) tid) ~ %watch path)
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::
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++ on-watch-result
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|= =tid
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^- (quip card ^state)
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`state
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::
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++ handle-sign
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~/ %handle-sign
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|= [=tid =wire =sign-arvo]
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=/ yarn (~(get by tid.state) tid)
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?~ yarn
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%- (slog leaf+"spider got sign for non-existent {<tid>}" ~)
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`state
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(take-input u.yarn ~ %sign wire sign-arvo)
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::
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++ on-agent
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|= [=tid =wire =sign:agent:gall]
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=/ yarn (~(get by tid.state) tid)
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?~ yarn
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%- (slog leaf+"spider got agent for non-existent {<tid>}" ~)
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`state
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(take-input u.yarn ~ %agent wire sign)
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::
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++ handle-start-thread
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~/ %handle-start-thread
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|= [parent-tid=(unit tid) use=(unit tid) =beak file=term =vase]
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(prep-thread parent-tid use beak %| file vase)
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::
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++ handle-inline-thread
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~/ %handle-inline-thread
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|= [parent-tid=(unit tid) use=(unit tid) =beak =shed:khan]
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(prep-thread parent-tid use beak %& shed)
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::
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++ prep-thread
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|= $: parent-tid=(unit tid) use=(unit tid) =beak
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source=(each shed:khan [file=term =vase])
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==
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^- (quip card ^state)
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=/ parent-yarn=yarn
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?~ parent-tid
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/
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(~(got by tid.state) u.parent-tid)
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=/ new-tid
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?^ use
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u.use
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%- new-thread-id
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?- -.source
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%& (cat 3 'inline-' q.beak)
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%| file.p.source
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==
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::
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=/ =yarn (snoc parent-yarn new-tid)
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::
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?: (~(has of running.state) yarn)
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~| [%already-started yarn]
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!!
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?: (~(has by starting.state) yarn)
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~| [%already-starting yarn]
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!!
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::
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=? serving.state !(~(has by serving.state) new-tid)
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(~(put by serving.state) new-tid [~ %noun q.beak])
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::
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=. tid.state (~(put by tid.state) new-tid yarn)
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?- -.source
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%& (begin-shed yarn p.source)
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%|
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=. starting.state (~(put by starting.state) yarn [%build vase.p.source])
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=/ pax=path
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~| no-file-for-thread+file.p.source
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(need (get-fit:clay beak %ted file.p.source))
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:_ state
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:_ ~
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:+ %pass /build/[new-tid]
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[%arvo %c %warp p.beak q.beak ~ %sing %a r.beak pax]
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==
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::
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++ handle-build
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~/ %handle-build
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|= [=tid =sign-arvo]
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^- (quip card ^state)
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=/ =yarn (~(got by tid.state) tid)
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=. starting.state
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(~(jab by starting.state) yarn |=([=trying =vase] [%none vase]))
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~| sign+[- +<]:sign-arvo
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?> ?=([?(%behn %clay) %writ *] sign-arvo)
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=/ =riot:clay p.sign-arvo
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?~ riot
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(thread-fail-not-running tid %build-thread-error *tang)
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?. ?=(%vase p.r.u.riot)
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(thread-fail-not-running tid %build-thread-strange >[p q]:u.riot< ~)
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=/ maybe-thread (mule |.(!<(thread !<(vase q.r.u.riot))))
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?: ?=(%| -.maybe-thread)
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(thread-fail-not-running tid %thread-not-thread ~)
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(slam-thread yarn p.maybe-thread)
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::
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++ slam-thread
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~/ %slam-thread
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|= [=yarn =thread]
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^- (quip card ^state)
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=/ =vase vase:(~(got by starting.state) yarn)
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=/ res (mule |.((thread vase)))
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?: ?=(%| -.res)
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(thread-fail-not-running (yarn-to-tid yarn) %false-start p.res)
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=. starting.state (~(del by starting.state) yarn)
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(begin-shed yarn p.res)
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::
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++ begin-shed
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|= [=yarn =shed:khan]
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?< (~(has of running.state) yarn)
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=/ m (strand ,vase)
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=/ =eval-form:eval:m (from-form:eval:m shed)
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=. running.state (~(put of running.state) yarn eval-form)
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(take-input yarn ~)
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::
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++ handle-stop-thread
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|= [=tid nice=?]
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^- (quip card ^state)
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=/ yarn=(unit yarn) (~(get by tid.state) tid)
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?~ yarn
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~& %stopping-nonexistent-thread
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[~ state]
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?: (~(has of running.state) u.yarn)
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?. nice
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(thread-fail u.yarn %cancelled ~)
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=^ done-cards state (thread-done u.yarn *vase silent=%.n)
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[done-cards state]
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?: (~(has by starting.state) u.yarn)
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(thread-fail-not-running tid %stopped-before-started ~)
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~& [%thread-not-started u.yarn]
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?: nice
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(thread-done u.yarn *vase silent=%.y)
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(thread-fail u.yarn %cancelled ~)
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::
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++ take-input
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~/ %take-input
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|= [=yarn input=(unit input:strand)]
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^- (quip card ^state)
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=/ m (strand ,vase)
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?. (~(has of running.state) yarn)
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%- (slog leaf+"spider got input for non-existent {<yarn>}" ~)
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`state
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=/ =eval-form:eval:m
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(need fil:(~(dip of running.state) yarn))
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=| cards=(list card)
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|- ^- (quip card ^state)
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=^ r=[cards=(list card) =eval-result:eval:m] eval-form
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=/ out
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%- mule |.
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(take:eval:m eval-form (convert-bowl yarn bowl) input)
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?- -.out
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%& p.out
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%| [[~ [%fail %crash p.out]] eval-form]
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==
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=. running.state (~(put of running.state) yarn eval-form)
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=/ =tid (yarn-to-tid yarn)
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=^ new-cards state
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^- [(list card) _state]
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%+ roll cards.r
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|= [=card cards=(list card) s=_state]
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:_ =? scrying.s ?=([%pass ^ %arvo %a %keen @ *] card)
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(~(put ju scrying.s) tid [&2 &6 |6]:card)
|
|
s
|
|
:_ cards
|
|
^- ^card
|
|
?+ card card
|
|
[%pass * *] [%pass [%thread tid p.card] q.card]
|
|
[%give ?(%fact %kick) *]
|
|
=- card(paths.p -)
|
|
%+ turn paths.p.card
|
|
|= =path
|
|
^- ^path
|
|
[%thread tid path]
|
|
==
|
|
=. cards (weld cards (flop new-cards))
|
|
=^ final-cards=(list card) state
|
|
?- -.eval-result.r
|
|
%next `state
|
|
%fail (thread-fail yarn err.eval-result.r)
|
|
%done (thread-done yarn value.eval-result.r silent=%.y)
|
|
==
|
|
[(weld cards final-cards) state]
|
|
::
|
|
++ thread-fail-not-running
|
|
|= [=tid =term =tang]
|
|
^- (quip card ^state)
|
|
=/ =yarn (~(got by tid.state) tid)
|
|
:_ state(starting (~(del by starting.state) yarn))
|
|
=/ moz (thread-say-fail tid term tang)
|
|
?. ?=([~ %build *] (~(get by starting.state) yarn))
|
|
moz
|
|
:_(moz [%pass /build/[tid] %arvo %c %warp our.bowl %base ~])
|
|
::
|
|
++ thread-say-fail
|
|
|= [=tid =term =tang]
|
|
^- (list card)
|
|
:~ [%give %fact ~[/thread-result/[tid]] %thread-fail !>([term tang])]
|
|
[%give %kick ~[/thread-result/[tid]] ~]
|
|
==
|
|
::
|
|
++ cancel-scry
|
|
|= [=tid silent=?]
|
|
^- (quip card _state)
|
|
?~ scrying=(~(get ju scrying.state) tid)
|
|
`state
|
|
:_ state(scrying (~(del by scrying.state) tid))
|
|
?: silent ~
|
|
%- ~(rep in `(set [wire ship path])`scrying)
|
|
|= [[=wire =ship =path] cards=(list card)]
|
|
%- (slog leaf+"cancelling {<tid>}: [{<[wire ship path]>}]" ~)
|
|
:_ cards
|
|
[%pass (welp /thread/[tid] wire) %arvo %a %yawn ship path]
|
|
::
|
|
++ thread-http-fail
|
|
|= [=tid =term =tang]
|
|
^- (quip card ^state)
|
|
=- (fall - `state)
|
|
%+ bind
|
|
(~(get by serving.state) tid)
|
|
|= [eyre-id=(unit @ta) output=mark =desk]
|
|
:_ state(serving (~(del by serving.state) tid))
|
|
?~ eyre-id
|
|
~
|
|
%+ give-simple-payload:app:server u.eyre-id
|
|
^- simple-payload:http
|
|
?. ?=(http-error:spider term)
|
|
%- (slog tang)
|
|
=/ tube (convert-tube %tang %json desk bowl)
|
|
:- [500 [['content-type' 'application/json'] ~]]
|
|
=- `(as-octs:mimes:html (en:json:html -))
|
|
o/(malt `(list [key=@t json])`[term+s/term tang+!<(json (tube !>(tang))) ~])
|
|
:_ ~ :_ ~
|
|
?- term
|
|
%bad-request 400
|
|
%forbidden 403
|
|
%nonexistent 404
|
|
%offline 504
|
|
==
|
|
::
|
|
++ thread-fail
|
|
|= [=yarn =term =tang]
|
|
^- (quip card ^state)
|
|
::%- (slog leaf+"strand {<yarn>} failed" leaf+<term> tang)
|
|
=/ =tid (yarn-to-tid yarn)
|
|
=/ fail-cards (thread-say-fail tid term tang)
|
|
=^ http-cards state (thread-http-fail tid term tang)
|
|
=^ scry-card state (cancel-scry tid silent=%.n)
|
|
=^ cards state (thread-clean yarn)
|
|
:_ state
|
|
:(weld fail-cards cards http-cards scry-card)
|
|
::
|
|
++ thread-http-response
|
|
|= [=tid =vase]
|
|
^- (quip card ^state)
|
|
=- (fall - `state)
|
|
%+ bind
|
|
(~(get by serving.state) tid)
|
|
|= [eyre-id=(unit @ta) output=mark =desk]
|
|
?~ eyre-id
|
|
`state
|
|
=/ tube (convert-tube output %json desk bowl)
|
|
:_ state(serving (~(del by serving.state) tid))
|
|
%+ give-simple-payload:app:server u.eyre-id
|
|
(json-response:gen:server !<(json (tube vase)))
|
|
::
|
|
++ thread-done
|
|
|= [=yarn =vase silent=?]
|
|
^- (quip card ^state)
|
|
:: %- (slog leaf+"strand {<yarn>} finished" (sell vase) ~)
|
|
=/ =tid (yarn-to-tid yarn)
|
|
=/ done-cards=(list card)
|
|
:~ [%give %fact ~[/thread-result/[tid]] %thread-done vase]
|
|
[%give %kick ~[/thread-result/[tid]] ~]
|
|
==
|
|
=^ http-cards state
|
|
(thread-http-response tid vase)
|
|
=^ scry-card state (cancel-scry tid silent)
|
|
=^ cards state (thread-clean yarn)
|
|
[:(weld done-cards cards http-cards scry-card) state]
|
|
::
|
|
++ thread-clean
|
|
|= =yarn
|
|
^- (quip card ^state)
|
|
=/ children=(list ^yarn)
|
|
%+ turn
|
|
~(tap of (~(dip of running.state) yarn))
|
|
|= [child=^yarn *]
|
|
(welp yarn child)
|
|
|- ^- (quip card ^state)
|
|
?~ children
|
|
`state
|
|
=^ cards-children state $(children t.children)
|
|
=^ cards-our state
|
|
=/ =^yarn i.children
|
|
=/ =tid (yarn-to-tid yarn)
|
|
=: running.state (~(lop of running.state) yarn)
|
|
tid.state (~(del by tid.state) tid)
|
|
serving.state (~(del by serving.state) (yarn-to-tid yarn))
|
|
==
|
|
:_ state
|
|
%+ murn ~(tap by wex.bowl)
|
|
|= [[=wire =ship =term] [acked=? =path]]
|
|
^- (unit card)
|
|
?. ?& ?=([%thread @ *] wire)
|
|
=(tid i.t.wire)
|
|
==
|
|
~
|
|
`[%pass wire %agent [ship term] %leave ~]
|
|
[(welp cards-children cards-our) state]
|
|
::
|
|
++ convert-bowl
|
|
|= [=yarn =bowl:gall]
|
|
^- bowl:spider
|
|
:* our.bowl
|
|
src.bowl
|
|
(yarn-to-tid yarn)
|
|
(yarn-to-parent yarn)
|
|
wex.bowl
|
|
sup.bowl
|
|
eny.bowl
|
|
now.bowl
|
|
(yarn-to-byk yarn bowl)
|
|
==
|
|
::
|
|
++ yarn-to-tid
|
|
|= =yarn
|
|
^- tid
|
|
=/ nary (flop yarn)
|
|
?> ?=([@ *] nary)
|
|
i.nary
|
|
::
|
|
++ yarn-to-parent
|
|
|= =yarn
|
|
^- (unit tid)
|
|
=/ nary (flop yarn)
|
|
?> ?=([@ *] nary)
|
|
?~ t.nary
|
|
~
|
|
`i.t.nary
|
|
::
|
|
++ yarn-to-byk
|
|
|= [=yarn =bowl:gall]
|
|
=/ [* * =desk]
|
|
~| "no desk associated with {<tid>}"
|
|
%- ~(got by serving.state) (yarn-to-tid yarn)
|
|
=/ boc bec
|
|
boc(q desk)
|
|
::
|
|
++ clean-state
|
|
!> ^- clean-slate
|
|
6+state(running (turn ~(tap of running.state) head))
|
|
::
|
|
++ convert-tube
|
|
|= [from=mark to=mark =desk =bowl:gall]
|
|
.^
|
|
tube:clay
|
|
%cc
|
|
/(scot %p our.bowl)/[desk]/(scot %da now.bowl)/[from]/[to]
|
|
==
|
|
--
|