mirror of
https://github.com/urbit/shrub.git
synced 2024-12-21 01:41:37 +03:00
493 lines
11 KiB
Plaintext
493 lines
11 KiB
Plaintext
/+ libthread=thread
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=, thread=thread:libthread
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=, thread-fail=thread-fail:libthread
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|%
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++ send-raw-cards
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|= cards=(list =card:agent:mall)
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=/ m (thread ,~)
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^- form:m
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|= thread-input:thread
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[cards %done ~]
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::
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++ send-raw-card
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|= =card:agent:mall
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=/ m (thread ,~)
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^- form:m
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(send-raw-cards card ~)
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::
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++ ignore
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|= tin=thread-input:thread
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`[%fail %ignore ~]
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::
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++ get-bowl
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=/ m (thread ,bowl:thread)
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^- form:m
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|= tin=thread-input:thread
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`[%done bowl.tin]
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::
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++ get-time
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=/ m (thread ,@da)
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^- form:m
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|= tin=thread-input:thread
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`[%done now.bowl.tin]
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::
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++ get-our
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=/ m (thread ,ship)
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^- form:m
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|= tin=thread-input:thread
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`[%done our.bowl.tin]
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::
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++ get-entropy
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=/ m (thread ,@uvJ)
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^- form:m
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|= tin=thread-input:thread
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`[%done eny.bowl.tin]
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::
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:: Convert skips to %ignore failures.
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::
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:: This tells the main loop to try the next handler.
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::
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++ handle
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|* a=mold
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=/ m (thread ,a)
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|= =form:m
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^- form:m
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|= tin=thread-input:thread
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=/ res (form tin)
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=? next.res ?=(%skip -.next.res)
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[%fail %ignore ~]
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res
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::
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:: Wait for a poke with a particular mark
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::
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++ take-poke
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|= =mark
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=/ m (thread ,vase)
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %poke @ *]
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?. =(mark p.cage.u.in.tin)
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`[%skip ~]
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`[%done q.cage.u.in.tin]
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==
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::
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::
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::
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++ take-sign-arvo
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=/ m (thread ,[wire sign-arvo])
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %sign *]
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`[%done [wire sign-arvo]:u.in.tin]
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==
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::
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:: Wait for a subscription update on a wire
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::
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++ take-fact-prefix
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|= =wire
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=/ m (thread ,[path cage])
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %agent * %fact *]
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?. =(watch+wire (scag (lent wire) wire.u.in.tin))
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`[%skip ~]
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`[%done (slag (lent wire) wire.u.in.tin) cage.sign.u.in.tin]
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==
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::
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:: Wait for a subscription update on a wire
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::
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++ take-fact
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|= =wire
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=/ m (thread ,cage)
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %agent * %fact *]
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?. =(watch+wire wire.u.in.tin)
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`[%skip ~]
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`[%done cage.sign.u.in.tin]
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==
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::
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:: Wait for a subscription close
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::
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++ take-kick
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|= =wire
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=/ m (thread ,~)
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %agent * %kick *]
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?. =(watch+wire wire.u.in.tin)
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`[%skip ~]
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`[%done ~]
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==
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::
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++ echo
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=/ m (thread ,~)
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^- form:m
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%- (main-loop ,~)
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:~ |= ~
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^- form:m
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;< =vase bind:m ((handle ,vase) (take-poke %echo))
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=/ message=tape !<(tape vase)
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%- (slog leaf+"{message}..." ~)
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;< ~ bind:m (sleep ~s2)
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%- (slog leaf+"{message}.." ~)
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(pure:m ~)
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::
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|= ~
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^- form:m
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;< =vase bind:m ((handle ,vase) (take-poke %over))
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%- (slog leaf+"over..." ~)
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(pure:m ~)
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==
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::
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++ take-watch
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=/ m (thread ,path)
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %watch *]
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`[%done path.u.in.tin]
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==
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::
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++ take-wake
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|= until=(unit @da)
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=/ m (thread ,~)
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %sign [%wait @ ~] %b %wake *]
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?. |(?=(~ until) =(`u.until (slaw %da i.t.wire.u.in.tin)))
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`[%skip ~]
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?~ error.sign-arvo.u.in.tin
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`[%done ~]
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`[%fail %timer-error u.error.sign-arvo.u.in.tin]
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==
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::
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++ take-poke-ack
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|= =wire
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=/ m (thread ,~)
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %agent * %poke-ack *]
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?. =(wire wire.u.in.tin)
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`[%skip ~]
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?~ p.sign.u.in.tin
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`[%done ~]
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`[%fail %poke-fail u.p.sign.u.in.tin]
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==
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::
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++ take-watch-ack
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|= =wire
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=/ m (thread ,~)
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %agent * %watch-ack *]
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?. =(watch+wire wire.u.in.tin)
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`[%skip ~]
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?~ p.sign.u.in.tin
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`[%done ~]
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`[%fail %watch-ack-fail u.p.sign.u.in.tin]
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==
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::
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++ poke
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|= [=dock =cage]
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=/ m (thread ,~)
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^- form:m
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=/ =card:agent:mall [%pass /poke %agent dock %poke cage]
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;< ~ bind:m (send-raw-card card)
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(take-poke-ack /poke)
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::
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++ poke-our
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|= [=term =cage]
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=/ m (thread ,~)
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^- form:m
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;< our=@p bind:m get-our
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(poke [our term] cage)
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::
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++ watch
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|= [=wire =dock =path]
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=/ m (thread ,~)
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^- form:m
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=/ =card:agent:mall [%pass watch+wire %agent dock %watch path]
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;< ~ bind:m (send-raw-card card)
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(take-watch-ack wire)
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::
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++ watch-our
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|= [=wire =term =path]
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=/ m (thread ,~)
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^- form:m
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;< our=@p bind:m get-our
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(watch wire [our term] path)
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::
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++ leave
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|= [=wire =dock]
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=/ m (thread ,~)
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^- form:m
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=/ =card:agent:mall [%pass watch+wire %agent dock %leave ~]
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(send-raw-card card)
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::
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++ leave-our
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|= [=wire =term]
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=/ m (thread ,~)
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^- form:m
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;< our=@p bind:m get-our
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(leave wire [our term])
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::
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++ rewatch
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|= [=wire =dock =path]
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=/ m (thread ,~)
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;< ~ bind:m ((handle ,~) (take-kick wire))
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;< ~ bind:m (flog-text "rewatching {<dock>} {<path>}")
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;< ~ bind:m (watch wire dock path)
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(pure:m ~)
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::
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++ wait
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|= until=@da
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=/ m (thread ,~)
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^- form:m
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;< ~ bind:m (send-wait until)
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(take-wake `until)
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::
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++ sleep
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|= for=@dr
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=/ m (thread ,~)
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^- form:m
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;< now=@da bind:m get-time
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(wait (add now for))
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::
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++ send-wait
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|= until=@da
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=/ m (thread ,~)
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^- form:m
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=/ =card:agent:mall
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[%pass /wait/(scot %da until) %arvo %b %wait until]
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(send-raw-card card)
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::
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++ set-timeout
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|* computation-result=mold
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=/ m (thread ,computation-result)
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|= [time=@dr computation=form:m]
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^- form:m
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;< now=@da bind:m get-time
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=/ when (add now time)
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=/ =card:agent:mall
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[%pass /timeout/(scot %da when) %arvo %b %wait when]
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;< ~ bind:m (send-raw-card card)
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|= tin=thread-input:thread
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=* loop $
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?: ?& ?=([~ %sign [%timeout @ ~] %b %wake *] in.tin)
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=((scot %da when) i.t.wire.u.in.tin)
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==
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`[%fail %timeout ~]
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=/ c-res (computation tin)
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?: ?=(%cont -.next.c-res)
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c-res(self.next ..loop(computation self.next.c-res))
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?: ?=(%done -.next.c-res)
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=/ =card:agent:mall
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[%pass /timeout/(scot %da when) %arvo %b %rest when]
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c-res(cards [card cards.c-res])
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c-res
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::
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++ send-request
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|= =request:http
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=/ m (thread ,~)
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^- form:m
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(send-raw-card %pass /request %arvo %i %request request *outbound-config:iris)
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::
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++ send-cancel-request
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=/ m (thread ,~)
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^- form:m
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(send-raw-card %pass /request %arvo %i %cancel-request ~)
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::
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++ take-client-response
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=/ m (thread ,client-response:iris)
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %sign [%request ~] %i %http-response %finished *]
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`[%done client-response.sign-arvo.u.in.tin]
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==
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::
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:: Wait until we get an HTTP response or cancelation and unset contract
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::
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++ take-maybe-sigh
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=/ m (thread ,(unit httr:eyre))
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^- form:m
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;< rep=(unit client-response:iris) bind:m
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take-maybe-response
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?~ rep
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(pure:m ~)
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:: XX s/b impossible
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::
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?. ?=(%finished -.u.rep)
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(pure:m ~)
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(pure:m (some (to-httr:iris +.u.rep)))
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::
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++ take-maybe-response
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=/ m (thread ,(unit client-response:iris))
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^- form:m
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|= tin=thread-input:thread
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?+ in.tin `[%skip ~]
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~ `[%wait ~]
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[~ %sign [%request ~] %i %http-response %cancel *]
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`[%done ~]
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[~ %sign [%request ~] %i %http-response %finished *]
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`[%done `client-response.sign-arvo.u.in.tin]
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==
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::
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++ extract-body
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|= =client-response:iris
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=/ m (thread ,cord)
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^- form:m
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?> ?=(%finished -.client-response)
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?> ?=(^ full-file.client-response)
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(pure:m q.data.u.full-file.client-response)
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::
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++ fetch-json
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|= url=tape
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=/ m (thread ,json)
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^- form:m
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=/ =request:http [%'GET' (crip url) ~ ~]
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;< ~ bind:m (send-request request)
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;< =client-response:iris bind:m take-client-response
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;< =cord bind:m (extract-body client-response)
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=/ json=(unit json) (de-json:html cord)
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?~ json
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(thread-fail %json-parse-error ~)
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(pure:m u.json)
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::
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:: Queue on skip, try next on fail %ignore
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::
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++ main-loop
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|* a=mold
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=/ m (thread ,~)
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=/ m-a (thread ,a)
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=| queue=(qeu (unit input:thread))
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=| active=(unit [in=(unit input:thread) =form:m-a forms=(list $-(a form:m-a))])
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=| state=a
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|= forms=(lest $-(a form:m-a))
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^- form:m
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|= tin=thread-input:thread
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=* top `form:m`..$
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=. queue (~(put to queue) in.tin)
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|^ (continue bowl.tin)
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::
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++ continue
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|= =bowl:thread
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^- output:m
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?> =(~ active)
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?: =(~ queue)
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`[%cont top]
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=^ in=(unit input:thread) queue ~(get to queue)
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^- output:m
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=. active `[in (i.forms state) t.forms]
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^- output:m
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(run bowl in)
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::
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++ run
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^- form:m
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|= tin=thread-input:thread
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^- output:m
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?> ?=(^ active)
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=/ res (form.u.active tin)
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=/ =output:m
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?- -.next.res
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%wait `[%wait ~]
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%skip `[%cont ..$(queue (~(put to queue) in.tin))]
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%cont `[%cont ..$(active `[in.u.active self.next.res forms.u.active])]
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%done (continue(active ~, state value.next.res) bowl.tin)
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%fail
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?: &(?=(^ forms.u.active) ?=(%ignore p.err.next.res))
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%= $
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active `[in.u.active (i.forms.u.active state) t.forms.u.active]
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in.tin in.u.active
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==
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`[%fail err.next.res]
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==
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[(weld cards.res cards.output) next.output]
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--
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::
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++ retry
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|* result=mold
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|= [crash-after=(unit @ud) computation=_*form:(thread (unit result))]
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=/ m (thread ,result)
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=| try=@ud
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|^ |- ^- form:m
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=* loop $
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?: =(crash-after `try)
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(thread-fail %retry-too-many ~)
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;< ~ bind:m (backoff try ~m1)
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;< res=(unit result) bind:m computation
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?^ res
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(pure:m u.res)
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loop(try +(try))
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::
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++ backoff
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|= [try=@ud limit=@dr]
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=/ m (thread ,~)
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^- form:m
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;< eny=@uvJ bind:m get-entropy
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%- sleep
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%+ min limit
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?: =(0 try) ~s0
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%+ add
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(mul ~s1 (bex (dec try)))
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(mul ~s0..0001 (~(rad og eny) 1.000))
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--
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::
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:: ----
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::
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:: Output
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::
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++ flog
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|= =flog:dill
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=/ m (thread ,~)
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^- form:m
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(send-raw-card %pass / %arvo %d %flog flog)
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::
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++ flog-text
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|= =tape
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=/ m (thread ,~)
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^- form:m
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(flog %text tape)
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::
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++ flog-tang
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|= =tang
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=/ m (thread ,~)
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^- form:m
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=/ =wall
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(zing (turn (flop tang) (cury wash [0 80])))
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|- ^- form:m
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=* loop $
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?~ wall
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(pure:m ~)
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;< ~ bind:m (flog-text i.wall)
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loop(wall t.wall)
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::
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:: ----
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::
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:: Handle domains
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::
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++ install-domain
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|= =turf
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=/ m (thread ,~)
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^- form:m
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(send-raw-card %pass / %arvo %e %rule %turf %put turf)
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--
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