spider: add process tree

pkg/arvo/age/spider.hoon

@@ -1,35 +1,134 @@
 /-  spider
-/+  libthread=thread, default-agent
+/+  libthread=thread, default-agent, verb
 =,  thread=thread:libthread
 |%
-+$  card      card:agent:mall
-+$  imp       imp:spider
-+$  imp-name  term
-+$  imput     [=imp-name =cage]
++$  card        card:agent:mall
++$  imp-thread  imp:spider
++$  pid         @udpid
++$  iid         iid:spider
++$  imp         (list pid)
++$  imput       [=imp =cage]
++$  imp-form    _*eval-form:eval:(thread ,vase)
++$  trie
+  $~  [*imp-form ~]
+  [=imp-form kid=(map pid trie)]
+::
 +$  state
-  $:  started=(map imp-name vase)
-      running=(map imp-name _*eval-form:[~!(. eval)]:(thread ,vase))
+  $:  started=(map imp vase)
+      running=trie
+      iid=(map iid imp)
+      count=pid
   ==
+::
++$  clean-slate
+  $:  started=(map imp vase)
+      running=(list imp)
+      iid=(map iid imp)
+      count=pid
+  ==
+::
++$  start-args
+  [parent=(unit iid) file=term =vase]
 --
+::
+::  Trie operations
+::
+|%
+++  get-imp
+  |=  [=trie =imp]
+  ^-  (unit =imp-form)
+  ?~  imp
+    `imp-form.trie
+  =/  son  (~(get by kid.trie) i.imp)
+  ?~  son
+    ~
+  $(trie u.son, imp t.imp)
+::
+++  get-imp-children
+  |=  [=trie =imp]
+  ^-  (list ^imp)
+  ?~  imp
+    (turn (tap-imp trie) head)
+  =/  son  (~(get by kid.trie) i.imp)
+  ?~  son
+    ~
+  $(trie u.son, imp t.imp)
+::
+::
+++  has-imp
+  |=  [=trie =imp]
+  !=(~ (get-imp trie imp))
+::
+++  put-imp
+  |=  [=trie =imp =imp-form]
+  ^+  trie
+  ?~  imp
+    trie(imp-form imp-form)
+  =/  son  (~(gut by kid.trie) i.imp [*^imp-form ~])
+  %=    trie
+      kid
+    %+  ~(put by kid.trie)  i.imp
+    $(trie son, imp t.imp)
+  ==
+::
+++  del-imp
+  |=  [=trie =imp]
+  ^+  trie
+  ?~  imp
+    trie
+  |-
+  ?~  t.imp
+    trie(kid (~(del by kid.trie) i.imp))
+  =/  son  (~(get by kid.trie) i.imp)
+  ?~  son
+    trie
+  %=    trie
+      kid
+    %+  ~(put by kid.trie)  i.imp
+    $(trie u.son, imp t.imp)
+  ==
+::
+++  tap-imp
+  =|  =imp
+  |=  =trie
+  ^-  (list [=^imp =imp-form])
+  %+  welp
+    ?~  imp
+      ~
+    [imp imp-form.trie]~
+  =/  kids  ~(tap by kid.trie)
+  |-  ^-  (list [=^imp =imp-form])
+  ?~  kids
+    ~
+  =/  next-1  ^$(imp [p.i.kids imp], trie q.i.kids)
+  =/  next-2  $(kids t.kids)
+  (welp next-1 next-2)
+--
+::
 ^-  agent:mall
 =|  =state
 =<
+  %+  verb  &
   |_  =bowl:mall
-  +*  this  .
+  +*  this         .
       spider-core  +>
-      sc    ~(. spider-core bowl)
-      def   ~(. (default-agent this %|) bowl)
+      sc           ~(. spider-core bowl)
+      def          ~(. (default-agent this %|) bowl)
   ::
   ++  on-init   on-init:def
-  ++  on-save   on-save:def
+  ++  on-save   clean-state:sc
   ++  on-load
     |=  old-state=vase
-    =/  runs  ~(tap by running.state)
+    =+  !<(=clean-slate old-state)
+    =.  count.state  count.clean-slate
+    =.  iid.state  iid.clean-slate
     |-  ^-  (quip card _this)
-    ?~  runs
+    ?~  running.clean-slate
       `this
-    =^  cards-1  state  (handle-stop-imp:sc p.i.runs |)
-    =^  cards-2  this   $(runs t.runs)
+    =^  cards-1  state
+      (handle-stop-imp:sc (imp-to-iid i.running.clean-slate) |)
+    =^  cards-2  this
+      $(running.clean-slate t.running.clean-slate)
     [(weld cards-1 cards-2) this]
   ::
   ++  on-poke
@@ -38,8 +137,8 @@
     =^  cards  state
       ?+  mark  (on-poke:def mark vase)
         %spider-imput  (on-poke-imput:sc !<(imput vase))
-        %spider-start  (handle-start-imp:sc !<([imp-name term ^vase] vase))
-        %spider-stop   (handle-stop-imp:sc !<([imp-name ?] vase))
+        %spider-start  (handle-start-imp:sc !<(start-args vase))
+        %spider-stop   (handle-stop-imp:sc !<([iid ?] vase))
       ==
     [cards this]
   ::
@@ -57,8 +156,15 @@
   ++  on-peek
     |=  =path
     ^-  (unit (unit cage))
-    ?+  path  (on-peek:def path)
-      [%x %started @ ~]  ``noun+!>((~(has by running.state) i.t.t.path))
+    ?+    path  (on-peek:def path)
+        [%x %tree ~]
+      ``noun+!>((turn (tap-imp running.state) head))
+    ::
+        [%x %started @ ~]
+      ``noun+!>((has-imp running.state (~(got by iid.state) i.t.t.path)))
+    ::
+        [%x %saxo @ ~]
+      ``noun+!>((~(got by iid.state) i.t.t.path))
     ==
   ::
   ++  on-agent
@@ -87,187 +193,259 @@
 |_  =bowl:mall
 ++  on-poke-imput
   |=  imput
-  (take-input imp-name ~ %poke cage)
+  (take-input imp ~ %poke cage)
 ::
 ++  on-watch
-  |=  [=imp-name =path]
-  (take-input imp-name ~ %watch path)
+  |=  [=iid =path]
+  (take-input (~(got by iid.state) iid) ~ %watch path)
 ::
 ++  on-watch-result
-  |=  =imp-name
+  |=  =iid
   ^-  (quip card ^state)
-  ?>  (~(has by started.state) imp-name)
+  ?>  (~(has by started.state) (~(got by iid.state) iid))
   `state
 ::
 ++  handle-sign
-  |=  [=imp-name =wire =sign-arvo]
-  (take-input imp-name ~ %sign wire sign-arvo)
+  |=  [=iid =wire =sign-arvo]
+  =/  imp  (~(get by iid.state) iid)
+  ?~  imp
+    %-  (slog leaf+"spider got sign for non-existent {<imp>}" ~)
+    `state
+  (take-input u.imp ~ %sign wire sign-arvo)
 ::
 ++  on-agent
-  |=  [=imp-name =wire =sign:agent:mall]
-  (take-input imp-name ~ %agent wire sign)
+  |=  [=iid =wire =sign:agent:mall]
+  =/  imp  (~(get by iid.state) iid)
+  ?~  imp
+    %-  (slog leaf+"spider got agent for non-existent {<imp>}" ~)
+    `state
+  (take-input u.imp ~ %agent wire sign)
 ::
 ++  handle-start-imp
-  |=  [=imp-name =term =vase]
+  |=  [parent-iid=(unit iid) file=term =vase]
   ^-  (quip card ^state)
-  ?:  (~(has by running.state) imp-name)
-    ~|  [%already-started imp-name]
+  =/  parent-imp=imp
+    ?~  parent-iid
+      /
+    (~(got by iid.state) u.parent-iid)
+  =/  =imp    (snoc parent-imp count.state)
+  ::
+  ?:  (has-imp running.state imp)
+    ~|  [%already-started imp]
     !!
-  ?:  (~(has by started.state) imp-name)
-    ~|  [%already-starting imp-name]
+  ?:  (~(has by started.state) imp)
+    ~|  [%already-starting imp]
     !!
-  =.  started.state  (~(put by started.state) imp-name vase)
+  =/  new-iid  (scot %ud count.state)
+  =:  started.state  (~(put by started.state) imp vase)
+      iid.state      (~(put by iid.state) new-iid imp)
+      count.state    +(count.state)
+    ==
   =/  =card
-    =/  =schematic:ford  [%path [our.bowl %home] %imp term]
-    [%pass /find/[imp-name] %arvo %f %build live=%.n schematic]
+    =/  =schematic:ford  [%path [our.bowl %home] %imp file]
+    [%pass /find/[new-iid] %arvo %f %build live=%.n schematic]
   [[card ~] state]
 ::
 ++  handle-find
-  |=  [=imp-name =sign-arvo]
+  |=  [=iid =sign-arvo]
   ^-  (quip card ^state)
-  ?>  (~(has by started.state) imp-name)
+  =/  =imp  (~(got by iid.state) iid)
+  ?>  (~(has by started.state) imp)
   ?>  ?=([%f %made *] sign-arvo)
   ?:  ?=(%incomplete -.result.sign-arvo)
-    %-  (slog leaf+"{<imp-name>} find incomplete" tang.result.sign-arvo)
+    %-  (slog leaf+"{<imp>} find incomplete" tang.result.sign-arvo)
     `state
   =/  =build-result:ford  build-result.result.sign-arvo
   ?:  ?=(%error -.build-result)
-    %-  (slog leaf+"{<imp-name>} find error" message.build-result)
+    %-  (slog leaf+"{<imp>} find error" message.build-result)
     `state
   ?.  ?=([%path *] +.build-result)
-    %-  (slog leaf+"{<imp-name>} find strange" ~)
+    %-  (slog leaf+"{<imp>} find strange" ~)
     `state
   =/  =card
     =/  =schematic:ford  [%core rail.build-result]
-    [%pass /build/[imp-name] %arvo %f %build live=%.y schematic]
+    [%pass /build/[iid] %arvo %f %build live=%.y schematic]
   [[card ~] state]
 ::
 ++  handle-build
-  |=  [=imp-name =sign-arvo]
+  |=  [=iid =sign-arvo]
   ^-  (quip card ^state)
-  ?>  (~(has by started.state) imp-name)
+  =/  =imp  (~(got by iid.state) iid)
+  ?>  (~(has by started.state) imp)
   ?>  ?=([%f %made *] sign-arvo)
   ?:  ?=(%incomplete -.result.sign-arvo)
-    %-  (slog leaf+"{<imp-name>} build incomplete" tang.result.sign-arvo)
+    %-  (slog leaf+"{<imp>} build incomplete" tang.result.sign-arvo)
     `state
   =/  =build-result:ford  build-result.result.sign-arvo
   ?:  ?=(%error -.build-result)
-    %-  (slog leaf+"{<imp-name>} build error" message.build-result)
+    %-  (slog leaf+"{<imp>} build error" message.build-result)
     `state
   =/  =cage  (result-to-cage:ford build-result)
   ?.  ?=(%noun p.cage)
-    %-  (slog leaf+"{<imp-name>} build not noun, is {<p.cage>}" ~)
+    %-  (slog leaf+"{<imp>} build not noun, is {<p.cage>}" ~)
     `state
-  =/  maybe-imp  (mule |.(!<(imp q.cage)))
+  =/  maybe-imp  (mule |.(!<(imp-thread q.cage)))
   ?:  ?=(%| -.maybe-imp)
-    %-  (slog leaf+"{<imp-name>} not valid imp" p.maybe-imp)
+    %-  (slog leaf+"{<imp>} not valid imp" p.maybe-imp)
     `state
-  (start-imp imp-name p.maybe-imp)
+  (start-imp imp p.maybe-imp)
 ::
 ++  start-imp
-  |=  [=imp-name =imp]
+  |=  [=imp =imp-thread]
   ^-  (quip card ^state)
-  =/  =vase  (~(got by started.state) imp-name)
+  =/  =vase  (~(got by started.state) imp)
   =^  cards-1  state
-    ?.  (~(has by running.state) imp-name)
+    ?.  (has-imp running.state imp)
       `state
-    (imp-fail imp-name %updated ~)
+    (imp-fail imp %updated ~)
   =/  m  (thread ,^vase)
-  =/  =eval-form:eval:m  (from-form:eval:m (imp bowl vase))
-  =.  running.state  (~(put by running.state) imp-name eval-form)
+  =/  =bowl:spider  (convert-bowl imp bowl)
+  =/  =eval-form:eval:m
+    (from-form:eval:m (imp-thread bowl vase))
+  =.  running.state  (put-imp running.state imp eval-form)
   =^  cards-2  state
-    (take-input imp-name ~)
+    (take-input imp ~)
   [(weld cards-1 cards-2) state]
 ::
 ++  handle-stop-imp
-  |=  [=imp-name nice=?]
+  |=  [=iid nice=?]
   ^-  (quip card ^state)
-  ~?  !(~(has by running.state) imp-name)
-    [%not-started imp-name]
+  =/  =imp  (~(got by iid.state) iid)
+  ~?  !(has-imp running.state imp)
+    [%not-started imp]
   ?:  nice
-    (imp-done imp-name *vase)
-  (imp-fail imp-name %cancelled ~)
+    (imp-done imp *vase)
+  (imp-fail imp %cancelled ~)
 ::
 ++  take-input
-  |=  [=imp-name input=(unit input:thread)]
+  |=  [=imp input=(unit input:thread)]
   ^-  (quip card ^state)
   =/  m  (thread ,vase)
-  ?.  (~(has by running.state) imp-name)
-    %-  (slog leaf+"spider got input for non-existent {<imp-name>}" ~)
+  ?.  (has-imp running.state imp)
+    %-  (slog leaf+"spider got input for non-existent {<imp>} 2" ~)
     `state
   =/  =eval-form:eval:m
-    (~(got by running.state) imp-name)
+    imp-form:(need (get-imp running.state imp))
   =|  cards=(list card)
   |-  ^-  (quip card ^state)
   =^  r=[cards=(list card) =eval-result:eval:m]  eval-form
     =/  out
       %-  mule  |.
-      (take:eval:m eval-form bowl input)
+      (take:eval:m eval-form (convert-bowl imp bowl) input)
     ?-  -.out
       %&  p.out
       %|  [[~ [%fail %crash p.out]] eval-form]
     ==
-  =.  running.state  (~(put by running.state) imp-name eval-form)
+  =.  running.state  (put-imp running.state imp eval-form)
+  =/  =iid  (imp-to-iid imp)
   =.  cards.r
     %+  turn  cards.r
     |=  =card
     ^-  ^card
     ?+  card  card
-        [%pass * *]  [%pass [%imp imp-name p.card] q.card]
+        [%pass * *]  [%pass [%imp iid p.card] q.card]
         [%give %fact *]
       ?~  path.p.card
         card
-      card(path.p `[%imp imp-name u.path.p.card])
+      card(path.p `[%imp iid u.path.p.card])
     ::
         [%give %kick *]
       ?~  path.p.card
         card
-      card(path.p `[%imp imp-name u.path.p.card])
+      card(path.p `[%imp iid u.path.p.card])
     ==
   =.  cards  (weld cards cards.r)
   =^  final-cards=(list card)  state
     ?-  -.eval-result.r
       %next  `state
-      %fail  (imp-fail imp-name err.eval-result.r)
-      %done  (imp-done imp-name value.eval-result.r)
+      %fail  (imp-fail imp err.eval-result.r)
+      %done  (imp-done imp value.eval-result.r)
     ==
   [(weld cards final-cards) state]
 ::
 ++  imp-fail
-  |=  [=imp-name =term =tang]
+  |=  [=imp =term =tang]
   ^-  (quip card ^state)
-  %-  (slog leaf+"thread {<imp-name>} failed" leaf+<term> tang)
+  %-  (slog leaf+"thread {<imp>} failed" leaf+<term> tang)
+  =/  =iid  (imp-to-iid imp)
   =/  fail-cards=(list card)
-    :~  [%give %fact `/imp-result/[imp-name] %imp-fail !>([term tang])]
-        [%give %kick `/imp-result/[imp-name] ~]
+    :~  [%give %fact `/imp-result/[iid] %imp-fail !>([term tang])]
+        [%give %kick `/imp-result/[iid] ~]
     ==
-  =^  cards  state  (imp-clean imp-name)
+  =^  cards  state  (imp-clean imp)
   [(weld fail-cards cards) state]
 ::
 ++  imp-done
-  |=  [=imp-name =vase]
+  |=  [=imp =vase]
   ^-  (quip card ^state)
-  %-  (slog leaf+"thread {<imp-name>} finished" (sell vase) ~)
+  %-  (slog leaf+"thread {<imp>} finished" (sell vase) ~)
+  =/  =iid  (imp-to-iid imp)
   =/  done-cards=(list card)
-    :~  [%give %fact `/imp-result/[imp-name] %imp-done vase]
-        [%give %kick `/imp-result/[imp-name] ~]
+    :~  [%give %fact `/imp-result/[iid] %imp-done vase]
+        [%give %kick `/imp-result/[iid] ~]
     ==
-  =^  cards  state  (imp-clean imp-name)
+  =^  cards  state  (imp-clean imp)
   [(weld done-cards cards) state]
 ::
 ++  imp-clean
-  |=  =imp-name
+  |=  =imp
   ^-  (quip card ^state)
-  =.  started.state  (~(del by started.state) imp-name)
-  =.  running.state  (~(del by running.state) imp-name)
-  :_  state
-  :-  [%pass /build/[imp-name] %arvo %f %kill ~]
-  %+  murn  ~(tap by wex.bowl)
-  |=  [[=wire =ship =term] [acked=? =path]]
-  ^-  (unit card)
-  ?.  ?&  ?=([%imp @ *] wire)
-          =(imp-name i.t.wire)
+  =/  children=(list ^imp)
+    [imp (get-imp-children running.state imp)]
+  |-  ^-  (quip card ^state)
+  ?~  children
+    `state
+  =^  cards-children  state  $(children t.children)
+  =^  cards-our  state
+    =/  =^imp  i.children
+    =/  =iid  (imp-to-iid imp)
+    =:  started.state  (~(del by started.state) imp)
+        running.state  (del-imp running.state imp)
+        iid.state      (~(del by iid.state) iid)
       ==
+    :_  state
+    :-  [%pass /build/[iid] %arvo %f %kill ~]
+    %+  murn  ~(tap by wex.bowl)
+    |=  [[=wire =ship =term] [acked=? =path]]
+    ^-  (unit card)
+    ?.  ?&  ?=([%imp @ *] wire)
+            =(iid i.t.wire)
+        ==
+      ~
+    `[%pass wire %agent [ship term] %leave ~]
+  [(welp cards-children cards-our) state]
+::
+++  convert-bowl
+  |=  [=imp =bowl:mall]
+  ^-  bowl:spider
+  :*  our.bowl
+      src.bowl
+      (imp-to-iid imp)
+      (imp-to-parent imp)
+      wex.bowl
+      sup.bowl
+      eny.bowl
+      now.bowl
+      byk.bowl
+  ==
+::
+++  imp-to-iid
+  |=  =imp
+  ^-  iid
+  =/  fimp  (flop imp)
+  ?>  ?=([@ *] fimp)
+  (scot %ud i.fimp)
+::
+++  imp-to-parent
+  |=  =imp
+  ^-  (unit iid)
+  =/  fimp  (flop imp)
+  ?>  ?=([@ *] fimp)
+  ?~  t.fimp
     ~
-  `[%pass wire %agent [ship term] %leave ~]
+  `(scot %ud i.t.fimp)
+::
+++  clean-state
+  !>  ^-  clean-slate
+  state(running (turn (tap-imp running.state) head))
 --

pkg/arvo/gen/spider/start.hoon

@@ -1,3 +1,3 @@
 :-  %say
 |=  [* [name=term vase=$@(~ [vase ~])] ~]
-[%spider-start name name ?~(vase *^vase -.vase)]
+[%spider-start ~ name ?~(vase *^vase -.vase)]

pkg/arvo/imp/aqua/ames.hoon

@@ -5,7 +5,7 @@
 ::  For now, we broadcast every packet to every ship and rely on them
 ::  to drop them.
 ::
-/-  aquarium
+/-  aquarium, spider
 /+  aqua-vane-imp
 =,  aquarium
 =|  ships=(list ship)
@@ -36,7 +36,7 @@
 --
 ::
 %-  aqua-vane-imp
-|_  =bowl:mall
+|_  =bowl:spider
 +*  this  .
 ++  handle-unix-effect
   |=  [who=@p ue=unix-effect]

pkg/arvo/imp/aqua/behn.hoon

@@ -1,4 +1,4 @@
-/-  aquarium
+/-  aquarium, spider
 /+  aqua-vane-imp
 =,  aquarium
 |%
@@ -9,7 +9,7 @@
 ::
 |%
 ++  pe
-  |=  [bowl:mall who=ship]
+  |=  [bowl:spider who=ship]
   =+  (~(gut by piers) who *pier)
   =*  pier-data  -
   =|  cards=(list card:agent:mall)
@@ -86,7 +86,7 @@
 --
 ::
 %-  aqua-vane-imp
-|_  =bowl:mall
+|_  =bowl:spider
 +*  this  .
 ++  handle-unix-effect
   |=  [who=@p ue=unix-effect:aquarium]

pkg/arvo/imp/aqua/dill.hoon

@@ -7,7 +7,7 @@
 ::  ships or otherwise making use of the fact that we can
 ::  programmatically send events.
 ::
-/-  aquarium
+/-  aquarium, spider
 /+  aqua-vane-imp
 |%
 ++  handle-blit
@@ -31,7 +31,7 @@
 --
 ::
 %-  aqua-vane-imp
-|_  =bowl:mall
+|_  =bowl:spider
 +*  this  .
 ++  handle-unix-effect
   |=  [who=@p ue=unix-effect:aquarium]

pkg/arvo/imp/aqua/eyre-azimuth.hoon

@@ -20,7 +20,7 @@
 --
 =;  core
   ^-  imp:spider
-  |=  =bowl:mall
+  |=  =bowl:spider
   =/  m  (thread ,~)
   ^-  form:m
   ;<  ~  bind:m  (subscribe-our:threadio /effects %aqua /effect)
@@ -360,7 +360,7 @@
   |-  ^-  form:m
   =*  loop  $
   ;<  [him=ship =unix-effect]  bind:m  take-unix-effect:ph-io
-  ;<  =bowl:mall               bind:m  get-bowl:ph-io
+  ;<  =bowl:spider             bind:m  get-bowl:ph-io
   =/  aqua-pax
     :-  %i
     /(scot %p her)/j/(scot %p her)/rift/(scot %da now.bowl)/(scot %p who)/noun

pkg/arvo/imp/aqua/eyre.hoon

@@ -1,6 +1,6 @@
 ::  Pass-through Eyre driver
 ::
-/-  aquarium
+/-  aquarium, spider
 /+  aqua-vane-imp
 =,  aquarium
 |%
@@ -11,7 +11,7 @@
 ::
 |%
 ++  pe
-  |=  [bowl:mall who=ship]
+  |=  [bowl:spider who=ship]
   =+  (~(gut by piers) who *pier)
   =*  pier-data  -
   =|  cards=(list card:agent:mall)
@@ -101,7 +101,7 @@
 --
 ::
 %-  aqua-vane-imp
-|_  =bowl:mall
+|_  =bowl:spider
 +*  this  .
 ++  handle-unix-effect
   |=  [who=@p ue=unix-effect:aquarium]

pkg/arvo/imp/azimuth-tracker.hoon

@@ -292,7 +292,7 @@
 ::  Main
 ::
 ^-  imp:spider
-|=  =bowl:mall
+|=  =bowl:spider
 =/  m  (thread ,vase)
 ^-  form:m
 ;<  ~  bind:m

pkg/arvo/imp/azt.hoon

@@ -2,7 +2,7 @@
 /+  *threadio
 =,  thread=thread:libthread
 ^-  imp:spider
-|=  [=bowl:mall =vase]
+|=  [=bowl:spider =vase]
 =/  m  (thread ,vase)
 ^-  form:m
 ~&  >  'starting azt'

pkg/arvo/imp/dns.hoon

@@ -14,7 +14,7 @@
     --
 ::
 =<  ^-  imp:spider
-    |=  [=bowl:mall vase]
+    |=  [=bowl:spider vase]
     =/  m  (thread ,vase)
     ^-  form:m
     ~&  >  'Entering dns loop'

pkg/arvo/imp/example-fetch.hoon

@@ -11,7 +11,7 @@
 --
 =;  core
   ^-  imp:spider
-  |=  [=bowl:mall vase]
+  |=  [=bowl:spider vase]
   =/  m  (thread ,vase)
   ^-  form:m
   ~&  >  'entering main loop'

pkg/arvo/imp/first.hoon

@@ -2,7 +2,7 @@
 /+  threadio
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [bowl:mall vase]
+|=  [bowl:spider vase]
 =/  m  (thread ,vase)
 ^-  form:m
 ~&  >  %first-starting

pkg/arvo/imp/ph.hoon

@@ -2,7 +2,7 @@
 /+  *threadio
 =,  thread=thread:spider
 =<  ^-  imp:spider
-    |=  [=bowl:mall vase]
+    |=  [=bowl:spider vase]
     =/  m  (thread ,vase)
     ^-  form:m
     ~&  >  'Entering pH loop'

pkg/arvo/imp/ph/add.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall args=vase]
+|=  [=bowl:spider args=vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-simple
 ;<  ~  bind:m  (raw-ship ~bud ~)

pkg/arvo/imp/ph/boot-az.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-azimuth
 ;<  ~  bind:m  (spawn ~bud)

pkg/arvo/imp/ph/boot-planet.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-simple
 ;<  ~  bind:m  (raw-ship ~bud ~)

pkg/arvo/imp/ph/breach-hi-cousin.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-azimuth
 ;<  ~  bind:m  (spawn ~bud)

pkg/arvo/imp/ph/breach-hi.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-azimuth
 ;<  ~  bind:m  (spawn ~bud)

pkg/arvo/imp/ph/breach-multiple.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~        bind:m  start-azimuth
 ;<  ~        bind:m  (spawn ~bud)

pkg/arvo/imp/ph/breach-sudden.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~        bind:m  start-azimuth
 ;<  ~        bind:m  (spawn ~bud)

pkg/arvo/imp/ph/breach-sync.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~        bind:m  start-azimuth
 ;<  ~        bind:m  (spawn ~bud)

pkg/arvo/imp/ph/change-file.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~        bind:m  start-simple
 ;<  ~        bind:m  (raw-ship ~bud ~)

pkg/arvo/imp/ph/child-sync.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~        bind:m  start-simple
 ;<  ~        bind:m  (raw-ship ~bud ~)

pkg/arvo/imp/ph/hi-az.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-azimuth
 ;<  ~  bind:m  (spawn ~bud)

pkg/arvo/imp/ph/hi.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-simple
 ;<  ~  bind:m  (raw-ship ~bud ~)

pkg/arvo/imp/ph/moon-az.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-azimuth
 ;<  ~  bind:m  (spawn ~bud)

pkg/arvo/imp/ph/second-cousin-hi.hoon

@@ -2,7 +2,7 @@
 /+  *ph-io
 =,  thread=thread:spider
 ^-  imp:spider
-|=  [=bowl:mall vase]
+|=  [=bowl:spider vase]
 =/  m  (thread ,vase)
 ;<  ~  bind:m  start-simple
 ;<  ~  bind:m  (raw-ship ~bud ~)

pkg/arvo/lib/aqua-vane-imp.hoon

@@ -4,7 +4,7 @@
 |%
 ++  vane-handler
   $_  ^|
-  |_  bowl:mall
+  |_  bowl:spider
   ++  handle-unix-effect
     |~  [ship unix-effect]
     *(quip card:agent:mall _^|(..handle-unix-effect))
@@ -18,7 +18,7 @@
 =;  core
   |=  handler=vane-handler
   ^-  imp:spider
-  |=  [=bowl:mall vase]
+  |=  [=bowl:spider vase]
   =/  m  (thread ,vase)
   ^-  form:m
   ;<  ~  bind:m  (watch-our:threadio /effects %aqua /effect)
@@ -37,7 +37,7 @@
   ^-  form:m
   ;<  [her=ship =unix-effect]  bind:m
     ((handle:threadio ,[ship unix-effect]) take-unix-effect:ph-io)
-  ;<  =bowl:mall               bind:m  get-bowl:threadio
+  ;<  =bowl:spider             bind:m  get-bowl:threadio
   =^  cards  handler
     (~(handle-unix-effect handler bowl) her unix-effect)
   ?~  cards
@@ -55,7 +55,7 @@
   ^-  form:m
   ;<  [=wire =sign-arvo]  bind:m
     ((handle:threadio ,[wire sign-arvo]) take-sign-arvo:threadio)
-  ;<  =bowl:mall          bind:m  get-bowl:threadio
+  ;<  =bowl:spider        bind:m  get-bowl:threadio
   =^  cards  handler
     (~(handle-arvo-response handler bowl) wire sign-arvo)
   ;<  ~                   bind:m  (send-raw-cards:threadio cards)

pkg/arvo/lib/ph/io.hoon

@@ -1,4 +1,4 @@
-/-  *aquarium
+/-  *aquarium, spider
 /+  libthread=thread, *threadio, util=ph-util
 =,  thread=thread:libthread
 |%
@@ -58,17 +58,13 @@
   |=  imps=(list term)
   =/  m  (thread ,~)
   ^-  form:m
-  ;<  our=@p  bind:m  get-our
+  ;<  =bowl:spider  bind:m  get-bowl
   |-  ^-  form:m
   =*  loop  $
   ?~  imps
     (pure:m ~)
   ;<  now=@da  bind:m  get-time
-  =/  imp-started
-    .^(? %mx /(scot %p our)/spider/(scot %da now)/started/[i.imps]/noun)
-  ?:  imp-started
-    loop(imps t.imps)
-  =/  poke-vase  !>([i.imps i.imps *vase])
+  =/  poke-vase  !>([`iid.bowl i.imps *vase])
   ;<  ~  bind:m  (poke-our %spider %spider-start poke-vase)
   loop(imps t.imps)
 ::
@@ -76,19 +72,7 @@
   |=  imps=(list term)
   =/  m  (thread ,~)
   ^-  form:m
-  ;<  our=@p  bind:m  get-our
-  |-  ^-  form:m
-  =*  loop  $
-  ?~  imps
-    (pure:m ~)
-  ;<  now=@da  bind:m  get-time
-  =/  imp-started
-    .^(? %mx /(scot %p our)/spider/(scot %da now)/started/[i.imps]/noun)
-  ?.  imp-started
-    loop(imps t.imps)
-  =/  poke-vase  !>([i.imps &])
-  ;<  ~  bind:m  (poke-our %spider %spider-stop poke-vase)
-  loop(imps t.imps)
+  (pure:m ~)
 ::
 ++  spawn
   |=  =ship

pkg/arvo/lib/thread.hoon

@@ -6,7 +6,19 @@
       [%agent =wire =sign:agent:mall]
       [%watch =path]
   ==
-+$  thread-input  [=bowl:mall in=(unit input)]
++$  thread-input  [=bowl in=(unit input)]
++$  iid   @taiid
++$  bowl
+  $:  our=ship
+      src=ship
+      iid=iid
+      mom=(unit iid)
+      wex=boat:mall
+      sup=bitt:mall
+      eny=@uvJ
+      now=@da
+      byk=beak
+  ==
 ::
 ::  cards:  cards to send immediately.  These will go out even if a
 ::          later stage of the computation fails, so they shouldn't have

pkg/arvo/lib/threadio.hoon

@@ -20,7 +20,7 @@
   `[%fail %ignore ~]
 ::
 ++  get-bowl
-  =/  m  (thread ,bowl:mall)
+  =/  m  (thread ,bowl:thread)
   ^-  form:m
   |=  tin=thread-input:thread
   `[%done bowl.tin]
@@ -389,7 +389,7 @@
   |^  (continue bowl.tin)
   ::
   ++  continue
-    |=  =bowl:mall
+    |=  =bowl:thread
     ^-  output:m
     ?>  =(~ active)
     ?:  =(~ queue)

pkg/arvo/lib/trie.hoon

@@ -0,0 +1,29 @@
+|%
+++  trie
+  |$  [key-t val-t]
+  [val=(unit val-t) kid=(map key-t (trie key-t val-t))]
+--
+::
+=|  a=(trie * *)
+=*  val-t  ?>(?=(^ val.a) val.a)
+|@
+++  put
+  |*  [b=(list *) c=*]
+  =>  .(b (homo b))
+  |-  ^+  a
+  ?~  b
+    a(val `c)
+  =/  son  (~(gut by kid.a) i.b [~ ~])
+  a(kid (~(put by kid.a) i.b $(a son, b t.b)))
+::
+++  get
+  |*  b=(list *)
+  =>  .(b (homo b))
+  |-
+  ?~  b
+    [~ val.a]
+  =/  son  (~(get by kid.a) i.b)
+  ?~  son
+    [b val.a]
+  $(a u.son, b t.b)
+--

pkg/arvo/sur/spider.hoon

@@ -1,5 +1,7 @@
 /+  libthread=thread
 =,  thread=thread:libthread
 |%
-+$  imp  $-([bowl:mall vase] _*form:(thread ,vase))
++$  imp   $-([bowl vase] _*form:(thread ,vase))
++$  iid   iid:thread
++$  bowl  bowl:thread
 --