mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-15 10:02:47 +03:00
440 lines
11 KiB
Plaintext
440 lines
11 KiB
Plaintext
/- spider
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/+ libstrand=strand, default-agent, verb
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=, strand=strand:libstrand
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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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+$ trie
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$~ [*thread-form ~]
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[=thread-form kid=(map tid trie)]
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::
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+$ trying ?(%find %build %none)
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+$ state
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$: starting=(map yarn [=trying =vase])
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running=trie
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tid=(map tid yarn)
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==
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::
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+$ clean-slate
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$: starting=(map yarn [=trying =vase])
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running=(list yarn)
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tid=(map tid yarn)
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==
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::
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+$ start-args
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[parent=(unit tid) use=(unit tid) file=term =vase]
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--
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::
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:: Trie operations
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::
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|%
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++ get-yarn
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|= [=trie =yarn]
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^- (unit =thread-form)
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?~ yarn
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`thread-form.trie
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=/ son (~(get by kid.trie) i.yarn)
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?~ son
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~
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$(trie u.son, yarn t.yarn)
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::
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++ get-yarn-children
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|= [=trie =yarn]
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^- (list ^yarn)
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?~ yarn
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(turn (tap-yarn trie) head)
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=/ son (~(get by kid.trie) i.yarn)
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?~ son
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~
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$(trie u.son, yarn t.yarn)
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::
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::
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++ has-yarn
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|= [=trie =yarn]
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!=(~ (get-yarn trie yarn))
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::
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++ put-yarn
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|= [=trie =yarn =thread-form]
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^+ trie
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?~ yarn
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trie(thread-form thread-form)
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=/ son (~(gut by kid.trie) i.yarn [*^thread-form ~])
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%= trie
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kid
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%+ ~(put by kid.trie) i.yarn
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$(trie son, yarn t.yarn)
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==
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::
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++ del-yarn
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|= [=trie =yarn]
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^+ trie
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?~ yarn
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trie
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|-
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?~ t.yarn
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trie(kid (~(del by kid.trie) i.yarn))
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=/ son (~(get by kid.trie) i.yarn)
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?~ son
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trie
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%= trie
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kid
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%+ ~(put by kid.trie) i.yarn
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$(trie u.son, yarn t.yarn)
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==
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::
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++ tap-yarn
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=| =yarn
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|= =trie
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^- (list [=^yarn =thread-form])
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%+ welp
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?~ yarn
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~
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[(flop yarn) thread-form.trie]~
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=/ kids ~(tap by kid.trie)
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|- ^- (list [=^yarn =thread-form])
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?~ kids
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~
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=/ next-1 ^$(yarn [p.i.kids yarn], trie q.i.kids)
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=/ next-2 $(kids t.kids)
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(welp next-1 next-2)
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--
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::
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^- agent:gall
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=| =state
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=<
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%+ verb |
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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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::
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++ on-init on-init:def
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++ on-save clean-state:sc
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++ on-load
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|= old-state=vase
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=+ !<(=clean-slate old-state)
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=. tid.state tid.clean-slate
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=/ yarns=(list yarn)
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%+ welp running.clean-slate
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~(tap in ~(key by starting.clean-slate))
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|- ^- (quip card _this)
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?~ yarns
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`this
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=^ cards-1 state
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(handle-stop-thread:sc (yarn-to-tid i.yarns) |)
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=^ cards-2 this
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$(yarns t.yarns)
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[(weld cards-1 cards-2) this]
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::
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++ on-poke
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|= [=mark =vase]
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^- (quip card _this)
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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 vase))
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%spider-stop (handle-stop-thread:sc !<([tid ?] 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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|= =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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==
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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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|= =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-yarn running.state) head))
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::
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[%x %starting @ ~]
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``noun+!>((has-yarn 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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|= [=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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|= [=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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==
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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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|_ =bowl:gall
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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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|= [=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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|= [parent-tid=(unit tid) use=(unit tid) file=term =vase]
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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 (fall use (scot %uv (sham eny.bowl)))
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=/ =yarn (snoc parent-yarn new-tid)
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::
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?: (has-yarn 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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=: starting.state (~(put by starting.state) yarn [%build vase])
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tid.state (~(put by tid.state) new-tid yarn)
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==
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:: TODO: - to / transformation
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=/ =card
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:+ %pass /build/[new-tid]
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=/ =riff:clay [%home ~ %sing %a da+now.bowl /ted/[file]/hoon]
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[%arvo %c %warp our.bowl riff]
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[[card ~] state]
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::
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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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?> ?=([?(%b %c) %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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?. ?=(%noun p.r.u.riot)
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(thread-fail-not-running tid %build-thread-strange >u.riot< ~)
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=/ maybe-thread (mule |.(!<(thread 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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(start-thread yarn p.maybe-thread)
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::
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++ start-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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?< (has-yarn running.state yarn)
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=/ m (strand ,^vase)
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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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=/ =eval-form:eval:m
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(from-form:eval:m p.res)
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=: starting.state (~(del by starting.state) yarn)
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running.state (put-yarn running.state yarn eval-form)
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==
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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 (~(got by tid.state) tid)
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?: (has-yarn running.state yarn)
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?: nice
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(thread-done yarn *vase)
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(thread-fail yarn %cancelled ~)
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?: (~(has by starting.state) yarn)
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(thread-fail-not-running tid %stopped-before-started ~)
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~& [%thread-not-started yarn]
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?: nice
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(thread-done yarn *vase)
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(thread-fail yarn %cancelled ~)
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::
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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-yarn running.state yarn)
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%- (slog leaf+"spider got input for non-existent {<yarn>} 2" ~)
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`state
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=/ =eval-form:eval:m
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thread-form:(need (get-yarn 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-yarn running.state yarn eval-form)
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=/ =tid (yarn-to-tid yarn)
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=. cards.r
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%+ turn cards.r
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|= =card
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^- ^card
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?+ card card
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[%pass * *] [%pass [%thread tid p.card] q.card]
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[%give ?(%fact %kick) *]
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=- card(paths.p -)
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%+ turn paths.p.card
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|= =path
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^- ^path
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[%thread tid path]
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==
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=. cards (weld cards cards.r)
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=^ final-cards=(list card) state
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?- -.eval-result.r
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%next `state
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%fail (thread-fail yarn err.eval-result.r)
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%done (thread-done yarn value.eval-result.r)
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==
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[(weld cards final-cards) state]
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::
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++ thread-fail-not-running
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|= [=tid =term =tang]
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=/ =yarn (~(got by tid.state) tid)
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:- (thread-say-fail tid term tang)
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state(starting (~(del by starting.state) yarn))
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::
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++ thread-say-fail
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|= [=tid =term =tang]
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^- (list card)
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:~ [%give %fact ~[/thread-result/[tid]] %thread-fail !>([term tang])]
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[%give %kick ~[/thread-result/[tid]] ~]
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==
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::
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++ thread-fail
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|= [=yarn =term =tang]
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^- (quip card ^state)
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:: %- (slog leaf+"strand {<yarn>} failed" leaf+<term> tang)
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=/ =tid (yarn-to-tid yarn)
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=/ fail-cards (thread-say-fail tid term tang)
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=^ cards state (thread-clean yarn)
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[(weld fail-cards cards) state]
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::
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++ thread-done
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|= [=yarn =vase]
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^- (quip card ^state)
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:: %- (slog leaf+"strand {<yarn>} finished" (sell vase) ~)
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=/ =tid (yarn-to-tid yarn)
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=/ done-cards=(list card)
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:~ [%give %fact ~[/thread-result/[tid]] %thread-done vase]
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[%give %kick ~[/thread-result/[tid]] ~]
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==
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=^ cards state (thread-clean yarn)
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[(weld done-cards cards) state]
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::
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++ thread-clean
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|= =yarn
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^- (quip card ^state)
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=/ children=(list ^yarn)
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[yarn (get-yarn-children running.state yarn)]
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|- ^- (quip card ^state)
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?~ children
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`state
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=^ cards-children state $(children t.children)
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=^ cards-our state
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=/ =^yarn i.children
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=/ =tid (yarn-to-tid yarn)
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=: running.state (del-yarn running.state yarn)
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tid.state (~(del by tid.state) tid)
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==
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:_ state
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%+ murn ~(tap by wex.bowl)
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|= [[=wire =ship =term] [acked=? =path]]
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^- (unit card)
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?. ?& ?=([%thread @ *] wire)
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=(tid i.t.wire)
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==
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~
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`[%pass wire %agent [ship term] %leave ~]
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[(welp cards-children cards-our) state]
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::
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++ convert-bowl
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|= [=yarn =bowl:gall]
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^- bowl:spider
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:* our.bowl
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src.bowl
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(yarn-to-tid yarn)
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(yarn-to-parent yarn)
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wex.bowl
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sup.bowl
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eny.bowl
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now.bowl
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byk.bowl
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==
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::
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++ yarn-to-tid
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|= =yarn
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^- tid
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=/ nary (flop yarn)
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?> ?=([@ *] nary)
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i.nary
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::
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++ yarn-to-parent
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|= =yarn
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^- (unit tid)
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=/ nary (flop yarn)
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?> ?=([@ *] nary)
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?~ t.nary
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~
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`i.t.nary
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::
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++ clean-state
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!> ^- clean-slate
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state(running (turn (tap-yarn running.state) head))
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--
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