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ames: give %miss to all listeners on %keen cancel

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%spider will send a %yawn task to ames if a thread fails
or stops. if the thread is done, it will delete the scry
from its state without notifying %ames
This commit is contained in:
yosoyubik 2023-04-19 11:03:11 +02:00
parent 51effc6be9
commit 873de61269
3 changed files with 149 additions and 63 deletions
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11
pkg/arvo/app/spider.hoon
View File

@ -421,7 +421,7 @@
?: (~(has of running.state) u.yarn)
?. nice
(thread-fail u.yarn %cancelled ~)
=^ cancel-cards state (cancel-scry tid)
=^ cancel-cards state (cancel-scry tid &)
=^ done-cards state (thread-done u.yarn *vase)
[(weld cancel-cards done-cards) state]
?: (~(has by starting.state) u.yarn)
@ -498,12 +498,13 @@
==
::
++ cancel-scry
|= =tid
|= [=tid silent=?]
^- (quip card _state)
?~ scry=(~(get by scries.state) tid)
`state
:_ state(scries (~(del by scries.state) tid))
::%- (slog leaf+"cancelling {<tid>}: [{<[ship path]:u.scry>}]" ~)
?: silent ~
%- (slog leaf+"cancelling {<tid>}: [{<[ship path]:u.scry>}]" ~)
[%pass /thread/[tid]/keen %arvo %a %yawn [ship path]:u.scry]~
::
++ thread-http-fail
@ -536,7 +537,7 @@
=/ fail-cards (thread-say-fail tid term tang)
=^ cards state (thread-clean yarn)
=^ http-cards state (thread-http-fail tid term tang)
=^ scry-card state (cancel-scry tid)
=^ scry-card state (cancel-scry tid |)
:_ state
:(weld fail-cards cards http-cards scry-card)
::
@ -565,7 +566,7 @@
==
=^ http-cards state
(thread-http-response tid vase)
=^ scry-card state (cancel-scry tid)
=^ scry-card state (cancel-scry tid &)
=^ cards state (thread-clean yarn)
[:(weld done-cards cards http-cards scry-card) state]
::

44
pkg/arvo/sys/vane/ames.hoon
View File

@ -2612,7 +2612,7 @@
?. (~(has by keens) path)
~&(dead-response/peep peer-core)
=< fi-abet
?^ error (fi-error:fine u.error)
?^ error (fi-fail:fine u.error)
(fi-rcv:fine peep meow lane)
::
++ on-keen
@ -3729,7 +3729,7 @@
^- byts
:- (roll biz |=([[wid=@ *] acc=@] (add wid acc)))
(can 3 biz)
::
:: TODO: move +etch-peep/+etch-keen to %lull?
++ etch-peep
|= [=path num=@ud]
^- byts
@ -3831,17 +3831,8 @@
++ fi-send
|=(=hoot fine(event-core (send-blob for=| her `@ux`hoot)))
::
++ fi-clean-up
|= [=^duct =_fine]
:: at the moment only %spider keeps state about remote scries
::
?+ duct fine
[[%gall %use %spider @ ship=@ %thread tid=@ *] *]
=/ =cage spider-stop+!>([&7.-.duct |])
=/ poke=* [%0 %m [p q.q]:cage]
=/ =plea [%g /ge/spider poke]
(fi-emit:fine duct %pass /fine/unsub %g %plea our plea)
==
++ fi-miss
|=([=^duct =_fine] (fi-emit:fine duct %give %miss fi-full-path))
::
+| %entry-points
::
@ -3906,31 +3897,18 @@
|= [=^duct all=?]
?. |(all (~(has in listeners.keen) duct))
%. fine
(fi-trace fin.veb |.("{<duct>} not a listener for {<path>}"))
=? fine all
:: notify listeners by inspecting their
:: ducts and sending appropiate clean up moves
::
(~(rep in listeners.keen) fi-clean-up)
%- (fi-trace fin.veb |.("deleting {<path>}"))
(fi-trace fin.veb |.("unknown listener, skip"))
=? fine all (~(rep in listeners.keen) fi-miss)
%- (fi-trace fin.veb |.("deleting {<fi-full-path>}"))
fine(listeners.keen ?:(all ~ (~(del in listeners.keen) duct)))
::
++ fi-error
++ fi-fail
|= =goof
^+ fine
:: we want to propagate the crash to the listeners and then
:: cancel this request, so it doesn't continue forever resending
:: request packets
:: TODO: propagate the goof to the listeners?
::
%- (fi-trace fin.veb |.("error {<mote.goof>} {<fi-full-path>}"))
=. listeners.keen (~(del in listeners.keen) duct)
%- ~(rep in listeners.keen)
|= [=^duct =_fine]
=. fine (fi-clean-up duct fine)
:: TODO return a %tune with data=~ (unit (unit cask)), instead?
:: have a gift for error handling? check with ~master-morzod
::
(fi-emit:fine duct %give %miss fi-full-path)
(fi-unsub duct all=&)
::
+| %implementation
::
@ -3965,6 +3943,8 @@
=/ =gift
:: TODO define data in %tune as a (unit (unit cask))
:: and return ~ signaling a block, instead of %miss?
:: NOTE a %miss gift now represents that the request was dropped
::
?. (meri:keys fi-full-path sig data)
[%miss fi-full-path]
[%tune fi-full-path sig ?~(data ~ `data)]

155
tests/sys/fine.hoon
View File

@ -3,6 +3,15 @@
/+ *test, v=test-ames-gall
/* kelvin %hoon /sys/kelvin
=> |%
++ crypto-core
|% ++ nec (pit:nu:crub:crypto 512 (shaz 'nec'))
++ bud (pit:nu:crub:crypto 512 (shaz 'bud'))
++ sign
|= [=ship data=@ux]
%. data
?:(=(ship ~nec) sigh:as:nec sigh:as:bud)
--
::
++ n-frags
|= n=@
^- @ux
@ -31,6 +40,32 @@
::
%cx ``hoon+!>(kelvin)
==
::
++ gum
::~/ %gum
|= biz=(list byts)
^- byts
:- (roll biz |=([[wid=@ *] acc=@] (add wid acc)))
(can 3 biz)
::
++ etch-peep
|= [=path num=@ud]
^- byts
?> (lth num (bex 32))
=+ pat=(spat path)
=+ wid=(met 3 pat)
%- gum
:~ 4^num :: fragment number
2^wid :: path size
wid^`@`pat :: namespace path
==
::
++ etch-request-content
|= [our=@p =path num=@ud]
^- @
=/ bod (etch-peep path num)
=/ sig 64^(sign:crypto-core our dat.bod)
(can 3 sig bod ~)
--
::
|%
@ -45,38 +80,25 @@
:: (ames-call:v ames.bud ~[/none] [%spew ~[%msg %snd %rcv %odd]] *roof)
=/ scry-path=path /c/x/1/kids/sys/kelvin
=/ fine-behn-wire=wire (weld /fine/behn/wake/~bud scry-path)
=/ future-path=path /c/x/5/kids/sys/kelvin
=/ future-behn=wire (weld /fine/behn/wake/~bud future-path)
=/ =task:ames [%keen ~bud scry-path]
::
=/ [sig=@ux meows=(list @ux)]
%: ames-scry-hunk:v ames.bud
[~1111.1.2 0xbeef.dead custom-roof]
~bud
[1 16.384 /~bud/1/1/c/x/1/kids/sys/kelvin]
==
=/ =shot:ames
:* [sndr=~bud rcvr=~nec]
req=| sam=|
=/ request=shot:ames
:* [sndr=~nec rcvr=~bud]
req=& sam=|
sndr-tick=0b1
rcvr-tick=0b1
origin=~
:: we know that for /sys/kelvin its contents fit
:: in one packet -- TODO multipacket response
content=?>(?=([@ *] meows) i.meows)
content=(etch-request-content ~nec /~bud/1/1/c/x/1/kids/sys/kelvin 1)
==
::
~& > 'poke requester %ames with a %keen task'
=^ t1 ames.nec
%: ames-check-call:v ames.nec
[~1111.1.1 0xdead.beef *roof]
[~[/keen-duct-1] task]
:~ :- ~[//unix]
:* %give %send [%& ~bud]
0x6e69.766c.656b.2f73.7973.2f73.6469.6b2f.312f.782f.632f.312f.312f.
6475.627e.2f00.1f00.0000.0107.7900.3220.8214.2705.fb35.0288.4b05.
06f2.e713.a557.9049.745f.2f6d.8871.afd8.ceeb.cebf.1db5.8e23.619e.
1dd2.c92e.b7f8.a142.1746.b5f0.d7f1.5155.2d30.9093.7ee4.ce00.0200.
0111.e898.b008
==
[%give %send [%& ~bud] (etch-shot:ames request)]
[~[//unix] %pass fine-behn-wire %b %wait ~1111.1.1..00.00.01]
==
==
@ -97,20 +119,37 @@
?~ keen=(~(get by keens.peer) scry-path)
~
listeners:u.keen
~& > 'two listeners for the requested path'
~& > 'checks two listeners for the requested scry path'
=/ t3=tang
%+ expect-eq
!>((sy ~[~[/keen-duct-1] ~[/keen-duct-2]]))
!>(listeners)
::
:- t3 |. :- %&
~& > 'hears a remote scry response'
:- t3 |. :- %|
~& > 'gives a remote scry response to listeners'
=/ [sig=@ux meows=(list @ux)]
%: ames-scry-hunk:v ames.bud
[~1111.1.2 0xbeef.dead custom-roof]
~bud
[1 16.384 /~bud/1/1/c/x/1/kids/sys/kelvin]
==
=/ response=shot:ames
:* [sndr=~bud rcvr=~nec]
req=| sam=|
sndr-tick=0b1
rcvr-tick=0b1
origin=~
:: we know that for /sys/kelvin its contents fit
:: in one packet -- TODO multipacket response
content=?>(?=([@ *] meows) i.meows)
==
::
=^ t4 ames.nec
%: ames-check-call:v ames.nec
[~1111.1.2 0xbeef.dead *roof]
:- ~[//fine]
:* %hear [%& ~bud]
(etch-shot:ames shot)
(etch-shot:ames response)
==
:~ [~[//fine] [%pass /qos %d %flog %text "; ~bud is your neighbor"]]
:- ~[/keen-duct-2]
@ -127,5 +166,71 @@
==
==
::
t4
:- t4 |. :- %|
=/ request=shot:ames
:* [sndr=~nec rcvr=~bud]
req=& sam=|
sndr-tick=0b1
rcvr-tick=0b1
origin=~
content=(etch-request-content ~nec /~bud/1/1/c/x/5/kids/sys/kelvin 1)
==
~& > 'poke requester %ames with a %keen task for a future case'
=^ t5 ames.nec
%: ames-check-call:v ames.nec
[~1111.1.1 0xdead.beef *roof]
[~[/keen-duct-3] %keen ~bud future-path]
:~ [~[//unix] [%give %send [%& ~bud] (etch-shot:ames request)]]
[~[//unix] %pass future-behn %b %wait ~1111.1.1..00.00.01]
==
==
::
:- t5 |. :- %|
~& > 'cancel %keen task, from requester'
=^ t6 ames.nec
%: ames-check-call:v ames.nec
[~1111.1.1 0xdead.beef *roof]
[~[/keen-duct-3] %yawn ~bud future-path]
[~[//unix] %pass future-behn %b %rest ~1111.1.1..00.00.01]~
==
::
:- t6 |. :- %|
~& > 'poke requester %ames with a new %keen task for a future case'
=^ t7 ames.nec
%: ames-check-call:v ames.nec
[~1111.1.1 0xdead.beef *roof]
[~[/keen-duct-4] %keen ~bud future-path]
:~ [~[//unix] [%give %send [%& ~bud] (etch-shot:ames request)]]
[~[//unix] %pass future-behn %b %wait ~1111.1.1..00.00.01]
==
==
::
:- t7 |. :- %|
~& > 'poke requester %ames with a second %keen task for a future case'
=^ t8 ames.nec
%: ames-check-call:v ames.nec
[~1111.1.1 0xdead.beef *roof]
[~[/keen-duct-5] %keen ~bud future-path]
~
==
:- t8 |. :- %|
~& > 'cancel scry for all listeners (%wham)'
=^ t9 ames.nec
%: ames-check-call:v ames.nec
[~1111.1.1 0xdead.beef *roof]
[~[/wham-duct] %wham ~bud future-path]
:~ [~[/keen-duct-4] [%give %miss /~bud/1/1/c/x/5/kids/sys/kelvin]]
[~[/keen-duct-5] [%give %miss /~bud/1/1/c/x/5/kids/sys/kelvin]]
[~[//unix] %pass future-behn %b %rest ~1111.1.1..00.00.01]
==
==
:- t9 |. :- %&
=/ peer=peer-state:ames
(ames-scry-peer:v ames.nec [~1111.1.8 0xbeef.dead *roof] [~nec ~bud])
=/ listeners=(set duct)
?~ keen=(~(get by keens.peer) scry-path)
~
listeners:u.keen
~& > 'checks no more listeners'
(expect-eq !>(~) !>(listeners))
--