Use global turn queue
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@ -54,7 +54,7 @@ The Syndicate DSL can be entered using `runActor` which calls a Nim body with a
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### Publish
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``` nim
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runActor("main") do (dataspace: Ref; turn: var Turn):
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runActor("main") do (dataspace: Ref; turn: Turn):
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let presenceHandle = publish(turn, dataspace, Present(username: "Judy"))
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# publish <Present "Judy"> to the dataspace
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# the assertion can be later retracted by handle
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@ -67,7 +67,7 @@ runActor("main") do (dataspace: Ref; turn: var Turn):
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We can react to assertions and messages within dataspaces using [patterns](https://synit.org/book/glossary.html#dataspace-pattern). Patterns are constructed using a Nim type and the `?` operator. Again a Nim type is used rather than a raw Preserves for schema consistency.
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``` nim
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runActor("main") do (dataspace: Ref; turn: var Turn):
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runActor("main") do (dataspace: Ref; turn: Turn):
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during(turn, dataspace, ?Present) do (who: string):
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# This body is active when the ?Present pattern is matched.
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# The Present type contains two atomic values that can be matched
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@ -35,21 +35,21 @@ proc `??`*(pat: Pattern; bindings: openArray[(int, Pattern)]): Pattern {.inline.
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patterns.inject(pat, bindings)
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type
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PublishProc = proc (turn: var Turn; v: Value; h: Handle) {.closure.}
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RetractProc = proc (turn: var Turn; h: Handle) {.closure.}
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MessageProc = proc (turn: var Turn; v: Value) {.closure.}
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PublishProc = proc (turn: Turn; v: Value; h: Handle) {.closure.}
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RetractProc = proc (turn: Turn; h: Handle) {.closure.}
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MessageProc = proc (turn: Turn; v: Value) {.closure.}
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ClosureEntity = ref object of Entity
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publishImpl: PublishProc
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retractImpl: RetractProc
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messageImpl: MessageProc
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publishImpl*: PublishProc
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retractImpl*: RetractProc
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messageImpl*: MessageProc
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method publish(e: ClosureEntity; turn: var Turn; a: AssertionRef; h: Handle) =
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method publish(e: ClosureEntity; turn: Turn; a: AssertionRef; h: Handle) =
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if not e.publishImpl.isNil: e.publishImpl(turn, a.value, h)
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method retract(e: ClosureEntity; turn: var Turn; h: Handle) =
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method retract(e: ClosureEntity; turn: Turn; h: Handle) =
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if not e.retractImpl.isNil: e.retractImpl(turn, h)
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method message(e: ClosureEntity; turn: var Turn; a: AssertionRef) =
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method message(e: ClosureEntity; turn: Turn; a: AssertionRef) =
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if not e.messageImpl.isNil: e.messageImpl(turn, a.value)
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proc argumentCount(handler: NimNode): int =
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@ -94,7 +94,7 @@ proc wrapPublishHandler(turn, handler: NimNode): NimNode =
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handlerSym = genSym(nskProc, "publish")
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bindingsSym = ident"bindings"
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quote do:
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proc `handlerSym`(`turn`: var Turn; `bindingsSym`: Value; `handleSym`: Handle) =
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proc `handlerSym`(`turn`: Turn; `bindingsSym`: Value; `handleSym`: Handle) =
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`varSection`
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if fromPreserves(`valuesSym`, bindings):
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`publishBody`
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@ -106,7 +106,7 @@ proc wrapMessageHandler(turn, handler: NimNode): NimNode =
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handlerSym = genSym(nskProc, "message")
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bindingsSym = ident"bindings"
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quote do:
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proc `handlerSym`(`turn`: var Turn; `bindingsSym`: Value) =
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proc `handlerSym`(`turn`: Turn; `bindingsSym`: Value) =
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`varSection`
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if fromPreserves(`valuesSym`, bindings):
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`body`
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@ -120,17 +120,17 @@ proc wrapDuringHandler(turn, entryBody, exitBody: NimNode): NimNode =
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duringSym = genSym(nskProc, "during")
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if exitBody.isNil:
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quote do:
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proc `duringSym`(`turn`: var Turn; `bindingsSym`: Value; `handleSym`: Handle): TurnAction =
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proc `duringSym`(`turn`: Turn; `bindingsSym`: Value; `handleSym`: Handle): TurnAction =
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`varSection`
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if fromPreserves(`valuesSym`, `bindingsSym`):
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`publishBody`
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else:
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quote do:
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proc `duringSym`(`turn`: var Turn; `bindingsSym`: Value; `handleSym`: Handle): TurnAction =
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proc `duringSym`(`turn`: Turn; `bindingsSym`: Value; `handleSym`: Handle): TurnAction =
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`varSection`
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if fromPreserves(`valuesSym`, `bindingsSym`):
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`publishBody`
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proc action(`turn`: var Turn) =
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proc action(`turn`: Turn) =
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`exitBody`
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result = action
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@ -190,5 +190,5 @@ macro during*(turn: untyped; ds: Cap; pattern: Pattern; publishBody: untyped) =
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proc runActor*(name: string; bootProc: TurnAction) =
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## Boot an actor `Actor` and churn ioqueue once.
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let actor = bootActor(name, bootProc)
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ioqueue.run()
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discard bootActor(name, bootProc)
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actors.run()
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@ -1,7 +1,10 @@
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# SPDX-FileCopyrightText: ☭ Emery Hemingway
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# SPDX-License-Identifier: Unlicense
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import std/[hashes, monotimes, options, sets, tables, times]
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import std/[deques, hashes, monotimes, options, sets, tables, times]
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import pkg/cps
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import pkg/sys/ioqueue
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import preserves
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import ../syndicate/protocols/[protocol, sturdy]
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@ -14,17 +17,6 @@ when tracing:
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export Handle
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template generateIdType(typ: untyped) =
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type typ* = distinct Natural
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proc `==`*(x, y: typ): bool {.borrow.}
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proc `$`*(id: typ): string {.borrow.}
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generateIdType(ActorId)
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generateIdType(FacetId)
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generateIdType(EndpointId)
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generateIdType(FieldId)
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generateIdType(TurnId)
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type
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Oid = sturdy.Oid
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Caveat = sturdy.Caveat
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@ -37,11 +29,13 @@ type
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# C code has "redefinition of struct" problems when orc is enabled
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Entity* = ref object of RootObj
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facet*: Facet
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oid*: Oid # oid is how Entities are identified over the wire
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Cap* {.preservesEmbedded.} = ref object of EmbeddedObj
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relay*: Facet
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target*: Entity
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relay*: Facet
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# Entity has facet but a Cap is also scoped to a relay Facet
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attenuation*: Attenuation
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Ref* {.deprecated: "Ref was renamed to Cap".} = Cap
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@ -53,6 +47,7 @@ type
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OutboundTable = Table[Handle, OutboundAssertion]
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Actor* = ref object
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next: Actor
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name: string
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handleAllocator: ref Handle
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# a fresh actor gets a new ref Handle and
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@ -61,18 +56,15 @@ type
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exitReason: ref Exception
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exitHooks: seq[TurnAction]
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id: ActorId
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facetIdAllocator: uint
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exiting, exited: bool
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when tracing:
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turnIdAllocator: ref TurnId
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traceStream: FileStream
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TurnAction* = proc (t: var Turn) {.closure.}
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TurnAction* = proc (t: Turn) {.closure.}
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Queues = TableRef[Facet, seq[TurnAction]]
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Turn* = object # an object that should remain on the stack
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facet: Facet
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queues: Queues # a ref object that can outlive Turn
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Turn* = ref object
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facet: Facet # active facet that may change during a turn
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work: Deque[tuple[facet: Facet, act: TurnAction]]
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effects: seq[Turn]
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when tracing:
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desc: TurnDescription
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@ -87,20 +79,30 @@ type
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id: FacetId
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isAlive: bool
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when tracing:
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var turnQueue {.threadvar.}: Deque[Turn]
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proc nextTurnId(facet: Facet): TurnId =
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result = succ(facet.actor.turnIdAllocator[])
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facet.actor.turnIdAllocator[] = result
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when tracing:
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proc openTraceStream: FileStream =
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let path = getEnv("SYNDICATE_TRACE_FILE")
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case path
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of "": stderr.writeLine "$SYNDICATE_TRACE_FILE unset"
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of "-": result = newFileStream(stderr)
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else: result = openFileStream(path, fmWrite)
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let traceStream = openTraceStream()
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var turnIdAllocator: uint
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proc nextTurnId(): TurnId =
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inc(turnIdAllocator)
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turnIdAllocator.toPreserves
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proc trace(actor: Actor; act: ActorActivation) =
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if not actor.traceStream.isNil:
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if not traceStream.isNil:
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var entry = TraceEntry(
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timestamp: getTime().toUnixFloat(),
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actor: initRecord("named", actor.name.toPreserves),
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item: act)
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actor.traceStream.writeText entry.toPreserves
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actor.traceStream.writeLine()
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traceStream.write(entry.toPreserves)
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proc path(facet: Facet): seq[trace.FacetId] =
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var f = facet
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@ -108,15 +110,15 @@ when tracing:
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result.add f.id.toPreserves
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f = f.parent
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method publish*(e: Entity; turn: var Turn; v: AssertionRef; h: Handle) {.base.} = discard
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method retract*(e: Entity; turn: var Turn; h: Handle) {.base.} = discard
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method message*(e: Entity; turn: var Turn; v: AssertionRef) {.base.} = discard
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method sync*(e: Entity; turn: var Turn; peer: Cap) {.base.} = discard
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method publish*(e: Entity; turn: Turn; v: AssertionRef; h: Handle) {.base.} = discard
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method retract*(e: Entity; turn: Turn; h: Handle) {.base.} = discard
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method message*(e: Entity; turn: Turn; v: AssertionRef) {.base.} = discard
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method sync*(e: Entity; turn: Turn; peer: Cap) {.base.} = discard
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using
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actor: Actor
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facet: Facet
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turn: var Turn
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turn: Turn
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action: TurnAction
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proc labels(f: Facet): string =
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@ -139,11 +141,14 @@ proc `$`*(r: Cap): string =
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proc `$`*(actor: Actor): string =
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"<Actor:" & actor.name & ">" # TODO: ambigous
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proc `$`*(t: Turn): string =
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"<Turn:" & $t.desc.id & ">"
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proc attenuate(r: Cap; a: Attenuation): Cap =
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if a.len == 0: result = r
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else: result = Cap(
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relay: r.relay,
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target: r.target,
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relay: r.relay,
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attenuation: a & r.attenuation)
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proc hash*(facet): Hash =
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@ -155,13 +160,42 @@ proc nextHandle(facet: Facet): Handle =
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result = succ(facet.actor.handleAllocator[])
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facet.actor.handleAllocator[] = result
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proc facet*(turn: var Turn): Facet = turn.facet
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proc queueWork*(turn: Turn; facet: Facet; act: TurnAction) =
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assert not facet.isNil
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turn.work.addLast((facet, act,))
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proc enqueue(turn: var Turn; target: Facet; action: TurnAction) =
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if target in turn.queues:
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turn.queues[target].add action
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else:
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turn.queues[target] = @[action]
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proc queueTurn*(facet: Facet; act: TurnAction) =
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var turn = Turn(facet: facet)
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assert not facet.isNil
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turn.work.addLast((facet, act,))
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when tracing:
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turn.desc.id = nextTurnId()
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turnQueue.addLast(turn)
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proc queueTurn*(prev: Turn; facet: Facet; act: TurnAction) =
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var next = Turn(facet: facet)
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assert not facet.isNil
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next.work.addLast((facet, act,))
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when tracing:
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next.desc.id = nextTurnId()
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next.desc.cause = TurnCause(orKind: TurnCauseKind.turn)
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next.desc.cause.turn.id = prev.desc.id
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turnQueue.addLast(next)
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proc run*(facet: Facet; action: TurnAction) = queueTurn(facet, action)
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## Alias to queueTurn_.
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proc facet*(turn: Turn): Facet = turn.facet
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proc queueEffect*(turn: Turn; target: Facet; act: TurnAction) =
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var next = Turn(facet: target)
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assert not target.isNil
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next.work.addLast((target, act,))
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when tracing:
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next.desc.id = nextTurnId()
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next.desc.cause = TurnCause(orKind: TurnCauseKind.turn)
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next.desc.cause.turn.id = turn.desc.id
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turn.effects.add next
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type Bindings = Table[Value, Value]
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@ -275,78 +309,78 @@ proc runRewrites*(a: Attenuation; v: Value): Value =
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result = examineAlternatives(stage, result)
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if result.isFalse: break
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proc publish(turn: var Turn; r: Cap; v: Value; h: Handle) =
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var a = runRewrites(r.attenuation, v)
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proc publish(turn: Turn; cap: Cap; v: Value; h: Handle) =
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var a = runRewrites(cap.attenuation, v)
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if not a.isFalse:
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let e = OutboundAssertion(handle: h, peer: r)
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let e = OutboundAssertion(handle: h, peer: cap)
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turn.facet.outbound[h] = e
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enqueue(turn, r.relay) do (turn: var Turn):
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queueEffect(turn, cap.relay) do (turn: Turn):
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e.established = true
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publish(r.target, turn, AssertionRef(value: a), e.handle)
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publish(cap.target, turn, AssertionRef(value: a), e.handle)
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when tracing:
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var act = ActionDescription(orKind: ActionDescriptionKind.enqueue)
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act.enqueue.event.target.actor = turn.facet.actor.id.toPreserves
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act.enqueue.event.target.facet = turn.facet.id.toPreserves
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act.enqueue.event.target.oid = r.target.oid.toPreserves
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act.enqueue.event.target.oid = cap.target.oid.toPreserves
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act.enqueue.event.detail = trace.TurnEvent(orKind: TurnEventKind.assert)
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act.enqueue.event.detail.assert.assertion.value.value =
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mapEmbeds(v) do (cap: Value) -> Value: discard
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act.enqueue.event.detail.assert.handle = h
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turn.desc.actions.add act
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proc publish*(turn: var Turn; r: Cap; a: Value): Handle {.discardable.} =
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proc publish*(turn: Turn; r: Cap; a: Value): Handle {.discardable.} =
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result = turn.facet.nextHandle()
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publish(turn, r, a, result)
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proc publish*[T](turn: var Turn; r: Cap; a: T): Handle {.discardable.} =
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proc publish*[T](turn: Turn; r: Cap; a: T): Handle {.discardable.} =
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publish(turn, r, a.toPreserves)
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proc retract(turn: var Turn; e: OutboundAssertion) =
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enqueue(turn, e.peer.relay) do (turn: var Turn):
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proc retract(turn: Turn; e: OutboundAssertion) =
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queueEffect(turn, e.peer.relay) do (turn: Turn):
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if e.established:
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e.established = false
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e.peer.target.retract(turn, e.handle)
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proc retract*(turn: var Turn; h: Handle) =
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proc retract*(turn: Turn; h: Handle) =
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var e: OutboundAssertion
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if turn.facet.outbound.pop(h, e):
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turn.retract(e)
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proc message*(turn: var Turn; r: Cap; v: Value) =
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proc message*(turn: Turn; r: Cap; v: Value) =
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var a = runRewrites(r.attenuation, v)
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if not a.isFalse:
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enqueue(turn, r.relay) do (turn: var Turn):
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queueEffect(turn, r.relay) do (turn: Turn):
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r.target.message(turn, AssertionRef(value: a))
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proc message*[T](turn: var Turn; r: Cap; v: T) =
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message(turn, r, v.toPreserves)
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proc message*[T](turn: Turn; r: Cap; v: T) =
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queueEffect(turn, r.relay) do (turn: Turn):
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message(turn, r, v.toPreserves)
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proc sync(turn: var Turn; e: Entity; peer: Cap) =
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proc sync(turn: Turn; e: Entity; peer: Cap) =
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e.sync(turn, peer)
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proc sync*(turn: var Turn; r, peer: Cap) =
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enqueue(turn, r.relay) do (turn: var Turn):
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proc sync*(turn: Turn; r, peer: Cap) =
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queueEffect(turn, r.relay) do (turn: Turn):
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sync(turn, r.target, peer)
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proc replace*[T](turn: var Turn; cap: Cap; h: Handle; v: T): Handle =
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proc replace*[T](turn: Turn; cap: Cap; h: Handle; v: T): Handle =
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result = publish(turn, cap, v)
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if h != default(Handle):
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retract(turn, h)
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proc replace*[T](turn: var Turn; cap: Cap; h: var Handle; v: T): Handle {.discardable.} =
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proc replace*[T](turn: Turn; cap: Cap; h: var Handle; v: T): Handle {.discardable.} =
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var old = h
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h = publish(turn, cap, v)
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if old != default(Handle):
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retract(turn, old)
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h
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proc stop*(turn: var Turn)
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proc run*(facet; action: TurnAction; zombieTurn = false)
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proc stop*(turn: Turn)
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proc newFacet(actor; parent: Facet; initialAssertions: OutboundTable): Facet =
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inc actor.facetIdAllocator
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result = Facet(
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id: getMonoTime().ticks.FacetId,
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id: actor.facetIdAllocator.toPreserves,
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actor: actor,
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parent: parent,
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outbound: initialAssertions,
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@ -358,9 +392,12 @@ proc newFacet(actor; parent: Facet): Facet =
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newFacet(actor, parent, initialAssertions)
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proc isInert(facet): bool =
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result = facet.children.len == 0 and
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(facet.outbound.len == 0 or facet.parent.isNil) and
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facet.inertCheckPreventers == 0
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let
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noKids = facet.children.len == 0
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noOutboundHandles = facet.outbound.len == 0
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isRootFacet = facet.parent.isNil
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noInertCheckPreventers = facet.inertCheckPreventers == 0
|
||||
noKids and (noOutboundHandles or isRootFacet) and noInertCheckPreventers
|
||||
|
||||
proc preventInertCheck*(facet): (proc()) {.discardable.} =
|
||||
var armed = true
|
||||
|
|
@ -371,22 +408,15 @@ proc preventInertCheck*(facet): (proc()) {.discardable.} =
|
|||
dec facet.inertCheckPreventers
|
||||
result = disarm
|
||||
|
||||
proc inFacet(turn: var Turn; facet; act: TurnAction) =
|
||||
## Call an action with a facet using a temporary `Turn`
|
||||
## that shares the `Queues` of the calling `Turn`.
|
||||
var t = Turn(facet: facet, queues: turn.queues)
|
||||
act(t)
|
||||
|
||||
proc terminate(actor; turn; reason: ref Exception)
|
||||
|
||||
proc terminate(facet; turn: var Turn; orderly: bool) =
|
||||
proc terminate(facet; turn: Turn; orderly: bool) =
|
||||
if facet.isAlive:
|
||||
facet.isAlive = false
|
||||
let parent = facet.parent
|
||||
if not parent.isNil:
|
||||
parent.children.excl facet
|
||||
block:
|
||||
var turn = Turn(facet: facet, queues: turn.queues)
|
||||
queueWork(turn, facet) do (turn: Turn):
|
||||
while facet.children.len > 0:
|
||||
facet.children.pop.terminate(turn, orderly)
|
||||
if orderly:
|
||||
|
|
@ -398,6 +428,7 @@ proc terminate(facet; turn: var Turn; orderly: bool) =
|
|||
if parent.isInert:
|
||||
parent.terminate(turn, true)
|
||||
else:
|
||||
stderr.writeLine "terminate facet is terminating ", facet.actor.name
|
||||
terminate(facet.actor, turn, nil)
|
||||
when tracing:
|
||||
var act = ActionDescription(orKind: ActionDescriptionKind.facetStop)
|
||||
|
|
@ -405,78 +436,102 @@ proc terminate(facet; turn: var Turn; orderly: bool) =
|
|||
turn.desc.actions.add act
|
||||
|
||||
proc stopIfInertAfter(action: TurnAction): TurnAction =
|
||||
proc wrapper(turn: var Turn) =
|
||||
# TODO: verify this
|
||||
proc wrapper(turn: Turn) =
|
||||
action(turn)
|
||||
enqueue(turn, turn.facet) do (turn: var Turn):
|
||||
queueEffect(turn, turn.facet) do (turn: Turn):
|
||||
if (not turn.facet.parent.isNil and
|
||||
(not turn.facet.parent.isAlive)) or
|
||||
turn.facet.isInert:
|
||||
stderr.writeLine("stopIfInertAfter stops turn")
|
||||
stop(turn)
|
||||
wrapper
|
||||
|
||||
proc newFacet*(turn: var Turn): Facet = newFacet(turn.facet.actor, turn.facet)
|
||||
proc newFacet(turn: Turn): Facet = newFacet(turn.facet.actor, turn.facet)
|
||||
|
||||
proc inFacet*(turn: var Turn; bootProc: TurnAction): Facet =
|
||||
proc inFacet*(turn: Turn; bootProc: TurnAction): Facet =
|
||||
result = newFacet(turn)
|
||||
let facet = turn.facet
|
||||
turn.facet = result
|
||||
when tracing:
|
||||
var act = ActionDescription(orKind: ActionDescriptionKind.facetstart)
|
||||
act.facetstart.path.add result.path
|
||||
turn.desc.actions.add act
|
||||
inFacet(turn, result, stopIfInertAfter(bootProc))
|
||||
stopIfInertAfter(bootProc)(turn)
|
||||
turn.facet = facet
|
||||
|
||||
proc facet*(turn: var Turn; bootProc: TurnAction): Facet {.deprecated.} = inFacet(turn, bootProc)
|
||||
proc facet(turn: Turn; bootProc: TurnAction): Facet {.deprecated.} = inFacet(turn, bootProc)
|
||||
|
||||
proc newActor(name: string; handleAlloc: ref Handle): Actor =
|
||||
let
|
||||
now = getTime()
|
||||
seed = now.toUnix * 1_000_000_000 + now.nanosecond
|
||||
proc newActor(name: string; parent: Facet): Actor =
|
||||
result = Actor(
|
||||
name: name,
|
||||
id: ActorId(seed),
|
||||
handleAllocator: handleAlloc,
|
||||
id: name.toPreserves,
|
||||
)
|
||||
result.root = newFacet(result, nil)
|
||||
if parent.isNil:
|
||||
new result.handleAllocator
|
||||
else:
|
||||
result.handleAllocator = parent.actor.handleAllocator
|
||||
result.root = newFacet(result, parent)
|
||||
when tracing:
|
||||
var act = ActorActivation(orKind: ActorActivationKind.start)
|
||||
act.start.actorName = Name(orKind: NameKind.named)
|
||||
act.start.actorName.named.name = name.toPreserves
|
||||
trace(result, act)
|
||||
|
||||
proc run(actor; bootProc: TurnAction; initialAssertions: OutboundTable) =
|
||||
run(newFacet(actor, actor.root, initialAssertions), stopIfInertAfter(bootProc))
|
||||
proc run(actor: Actor; bootProc: TurnAction; initialAssertions: OutboundTable) =
|
||||
queueTurn(newFacet(actor, actor.root, initialAssertions), stopIfInertAfter(bootProc))
|
||||
|
||||
proc bootActor*(name: string; bootProc: TurnAction): Actor =
|
||||
var initialAssertions: OutboundTable
|
||||
result = newActor(name, new(ref Handle))
|
||||
proc bootActor*(name: string; bootProc: TurnAction): Actor {.discardable.} =
|
||||
## Boot a top-level actor.
|
||||
result = newActor(name, nil)
|
||||
new result.handleAllocator
|
||||
var turn = Turn(facet: result.root)
|
||||
assert not result.root.isNil
|
||||
turn.work.addLast((result.root, bootProc,))
|
||||
when tracing:
|
||||
new result.turnIdAllocator
|
||||
let path = getEnv("SYNDICATE_TRACE_FILE", "/tmp/" & name & ".trace.pr")
|
||||
case path
|
||||
of "": stderr.writeLine "$SYNDICATE_TRACE_FILE unset, not tracing actor ", name
|
||||
of "-": result.traceStream = newFileStream(stderr)
|
||||
else: result.traceStream = openFileStream(path, fmWrite)
|
||||
run(result, bootProc, initialAssertions)
|
||||
turn.desc.id = nextTurnId()
|
||||
turn.desc.cause = TurnCause(orKind: TurnCauseKind.external)
|
||||
turn.desc.cause.external.description = "bootActor".toPreserves
|
||||
turnQueue.addLast turn
|
||||
|
||||
proc spawnActor*(name: string; turn: var Turn; bootProc: TurnAction; initialAssertions = initHashSet[Handle]()): Actor {.discardable.} =
|
||||
let actor = newActor(name, turn.facet.actor.handleAllocator)
|
||||
enqueue(turn, turn.facet) do (turn: var Turn):
|
||||
proc spawnActor*(name: string; turn: Turn; bootProc: TurnAction; initialAssertions = initHashSet[Handle]()): Actor {.discardable.} =
|
||||
let actor = newActor(name, turn.facet)
|
||||
queueEffect(turn, actor.root) do (turn: Turn):
|
||||
var newOutBound: Table[Handle, OutboundAssertion]
|
||||
for key in initialAssertions:
|
||||
discard turn.facet.outbound.pop(key, newOutbound[key])
|
||||
when tracing:
|
||||
actor.turnIdAllocator = turn.facet.actor.turnIdAllocator
|
||||
actor.traceStream = turn.facet.actor.traceStream
|
||||
var act = ActionDescription(orKind: ActionDescriptionKind.spawn)
|
||||
act.spawn.id = actor.id.toPreserves
|
||||
turn.desc.actions.add act
|
||||
run(actor, bootProc, newOutBound)
|
||||
actor
|
||||
|
||||
proc spawn*(name: string; turn: var Turn; bootProc: TurnAction; initialAssertions = initHashSet[Handle]()): Actor {.discardable.} =
|
||||
proc spawn*(name: string; turn: Turn; bootProc: TurnAction; initialAssertions = initHashSet[Handle]()): Actor {.discardable.} =
|
||||
spawnActor(name, turn, bootProc, initialAssertions)
|
||||
|
||||
type StopOnRetract = ref object of Entity
|
||||
|
||||
method retract*(e: StopOnRetract; turn: Turn; h: Handle) =
|
||||
stderr.writeLIne "StopOnRetract stops turn ", turn, " of ", turn.facet.actor
|
||||
stop(turn)
|
||||
|
||||
proc halfLink(facet, other: Facet) =
|
||||
let h = facet.nextHandle()
|
||||
facet.outbound[h] = OutboundAssertion(
|
||||
handle: h,
|
||||
peer: Cap(relay: other, target: StopOnRetract(facet: facet)),
|
||||
established: true,
|
||||
)
|
||||
|
||||
proc spawnLink*(name: string; turn: Turn; bootProc: TurnAction; initialAssertions = initHashSet[Handle]()): Actor {.discardable.} =
|
||||
result = spawnActor(name, turn, bootProc, initialAssertions)
|
||||
halfLink(turn.facet, result.root)
|
||||
halfLink(result.root, turn.facet)
|
||||
|
||||
proc newInertCap*(): Cap =
|
||||
let a = bootActor("inert") do (turn: var Turn): turn.stop()
|
||||
new result
|
||||
let a = bootActor("inert") do (turn: Turn): turn.stop()
|
||||
Cap(relay: a.root)
|
||||
|
||||
proc atExit*(actor; action) = actor.exitHooks.add action
|
||||
|
|
@ -492,115 +547,67 @@ proc terminate(actor; turn; reason: ref Exception) =
|
|||
act.stop.status.error.message = reason.msg
|
||||
trace(actor, act)
|
||||
for hook in actor.exitHooks: hook(turn)
|
||||
proc finish(turn: var Turn) =
|
||||
proc finish(turn: Turn) =
|
||||
assert not actor.root.isNil, actor.name
|
||||
actor.root.terminate(turn, reason.isNil)
|
||||
actor.exited = true
|
||||
block:
|
||||
run(actor.root, finish, true)
|
||||
queueTurn(actor.root, finish)
|
||||
|
||||
proc terminate*(facet; e: ref Exception) =
|
||||
run(facet.actor.root) do (turn: var Turn):
|
||||
run(facet.actor.root) do (turn: Turn):
|
||||
facet.actor.terminate(turn, e)
|
||||
|
||||
#[
|
||||
proc asyncCheck*(facet: Facet; fut: FutureBase) =
|
||||
## Sets a callback on `fut` which propagates exceptions to `facet`.
|
||||
addCallback(fut) do ():
|
||||
if fut.failed: terminate(facet, fut.error)
|
||||
template recallFacet(turn: Turn; body: untyped): untyped =
|
||||
let facet = turn.facet
|
||||
block:
|
||||
body
|
||||
assert facet.actor == turn.facet.actor, "turn of " & $facet.actor & " ended at " & $turn.facet.actor
|
||||
turn.facet = facet
|
||||
|
||||
proc asyncCheck*(turn; fut: FutureBase) =
|
||||
## Sets a callback on `fut` which propagates exceptions to the facet of `turn`.
|
||||
asyncCheck(turn.facet, fut)
|
||||
]#
|
||||
|
||||
template tryFacet(facet; body: untyped) =
|
||||
try: body
|
||||
except CatchableError as err: terminate(facet, err)
|
||||
|
||||
proc run*(facet; action: TurnAction; zombieTurn = false) =
|
||||
if true and zombieTurn or (facet.actor.exitReason.isNil and facet.isAlive):
|
||||
tryFacet(facet):
|
||||
var queues = newTable[Facet, seq[TurnAction]]()
|
||||
block:
|
||||
var turn = Turn(facet: facet, queues: queues)
|
||||
action(turn)
|
||||
when tracing:
|
||||
turn.desc.id = facet.nextTurnId.toPreserves
|
||||
facet.actor.trace ActorActivation(
|
||||
orKind: ActorActivationKind.turn, turn: turn.desc)
|
||||
for facet, queue in queues:
|
||||
for action in queue: run(facet, action)
|
||||
|
||||
proc run*(cap: Cap; action: TurnAction) =
|
||||
## Convenience proc to run a `TurnAction` in the scope of a `Cap`.
|
||||
run(cap.relay, action)
|
||||
|
||||
#[
|
||||
proc addCallback*(fut: FutureBase; facet: Facet; act: TurnAction) =
|
||||
## Add a callback to a `Future` that will be called at a later `Turn`
|
||||
## within the context of `facet`.
|
||||
addCallback(fut) do ():
|
||||
if fut.failed: terminate(facet, fut.error)
|
||||
else:
|
||||
when tracing:
|
||||
run(facet) do (turn: var Turn):
|
||||
turn.desc.cause = TurnCause(orKind: TurnCauseKind.external)
|
||||
turn.desc.cause.external.description = "Future".toPreserves
|
||||
act(turn)
|
||||
proc stopNow(turn: Turn) =
|
||||
let caller = turn.facet
|
||||
recallFacet turn:
|
||||
while caller.children.len > 0:
|
||||
var child = caller.children.pop()
|
||||
if child.actor == caller.actor:
|
||||
turn.facet = child
|
||||
stopNow(turn)
|
||||
else:
|
||||
run(facet, act)
|
||||
queueEffect(turn, child, stopNow)
|
||||
caller.terminate(turn, true)
|
||||
|
||||
proc addCallback*(fut: FutureBase; turn: var Turn; act: TurnAction) =
|
||||
## Add a callback to a `Future` that will be called at a later `Turn`
|
||||
## with the same context as the current.
|
||||
if fut.failed:
|
||||
terminate(turn.facet, fut.error)
|
||||
elif fut.finished:
|
||||
enqueue(turn, turn.facet, act)
|
||||
else:
|
||||
addCallback(fut, turn.facet, act)
|
||||
proc stop*(turn: Turn, facet: Facet) =
|
||||
queueEffect(turn, facet, stopNow)
|
||||
|
||||
proc addCallback*[T](fut: Future[T]; turn: var Turn; act: proc (t: var Turn, x: T) {.closure.}) =
|
||||
addCallback(fut, turn) do (turn: var Turn):
|
||||
if fut.failed: terminate(turn.facet, fut.error)
|
||||
else:
|
||||
when tracing:
|
||||
turn.desc.cause = TurnCause(orKind: TurnCauseKind.external)
|
||||
turn.desc.cause.external.description = "Future".toPreserves
|
||||
act(turn, read fut)
|
||||
]#
|
||||
|
||||
proc stop*(turn: var Turn, facet: Facet) =
|
||||
if facet.parent.isNil:
|
||||
facet.terminate(turn, true)
|
||||
else:
|
||||
enqueue(turn, facet.parent) do (turn: var Turn):
|
||||
facet.terminate(turn, true)
|
||||
|
||||
proc stop*(turn: var Turn) =
|
||||
proc stop*(turn: Turn) =
|
||||
stop(turn, turn.facet)
|
||||
|
||||
proc onStop*(facet: Facet; act: TurnAction) =
|
||||
## Add a `proc (turn: var Turn)` action to `facet` to be called as it stops.
|
||||
## Add a `proc (turn: Turn)` action to `facet` to be called as it stops.
|
||||
assert not facet.isNil
|
||||
add(facet.shutdownActions, act)
|
||||
|
||||
proc stopActor*(facet: Facet) =
|
||||
run(facet) do (turn: var Turn):
|
||||
let actor = facet.actor
|
||||
enqueue(turn, actor.root) do (turn: var Turn):
|
||||
terminate(actor, turn, nil)
|
||||
|
||||
proc stopActor*(turn: var Turn) =
|
||||
stopActor(turn.facet)
|
||||
proc onStop*(turn: Turn; act: TurnAction) =
|
||||
onStop(turn.facet, act)
|
||||
|
||||
proc stop*(actor: Actor) =
|
||||
stopActor(actor.root)
|
||||
queueTurn(actor.root) do (turn: Turn):
|
||||
assert(not turn.facet.isNil)
|
||||
stop(turn)
|
||||
|
||||
proc freshen*(turn: var Turn, act: TurnAction) =
|
||||
assert(turn.queues.len == 0, "Attempt to freshen a non-stale Turn")
|
||||
proc stopActor*(facet: Facet) =
|
||||
stop(facet.actor)
|
||||
|
||||
proc stopActor*(turn: Turn) =
|
||||
assert(not turn.facet.isNil)
|
||||
assert(not turn.facet.actor.isNil)
|
||||
assert(not turn.facet.actor.root.isNil)
|
||||
stop(turn, turn.facet.actor.root)
|
||||
|
||||
proc freshen*(turn: Turn, act: TurnAction) {.deprecated.} =
|
||||
run(turn.facet, act)
|
||||
|
||||
proc newCap*(relay: Facet; e: Entity): Cap =
|
||||
proc newCap*(relay: Facet; e: Entity): Cap {.deprecated.} =
|
||||
Cap(relay: relay, target: e)
|
||||
|
||||
proc newCap*(turn; e: Entity): Cap =
|
||||
|
|
@ -612,13 +619,42 @@ proc newCap*(e: Entity; turn): Cap =
|
|||
type SyncContinuation {.final.} = ref object of Entity
|
||||
action: TurnAction
|
||||
|
||||
method message(entity: SyncContinuation; turn: var Turn; v: AssertionRef) =
|
||||
method message(entity: SyncContinuation; turn: Turn; v: AssertionRef) =
|
||||
entity.action(turn)
|
||||
|
||||
proc sync*(turn: var Turn; refer: Cap; act: TurnAction) =
|
||||
proc sync*(turn: Turn; refer: Cap; act: TurnAction) =
|
||||
sync(turn, refer, newCap(turn, SyncContinuation(action: act)))
|
||||
|
||||
proc running*(actor): bool =
|
||||
result = not actor.exited
|
||||
if not (result or actor.exitReason.isNil):
|
||||
raise actor.exitReason
|
||||
|
||||
proc run(turn: Turn) =
|
||||
while turn.work.len > 0:
|
||||
var (facet, act) = turn.work.popFirst()
|
||||
assert not act.isNil
|
||||
turn.facet = facet
|
||||
act(turn)
|
||||
when tracing:
|
||||
var act = ActorActivation(orKind: ActorActivationKind.turn)
|
||||
act.turn = move turn.desc
|
||||
trace(turn.facet.actor, act)
|
||||
turn.facet = nil # invalidate the turn
|
||||
# TODO: catch exceptions here
|
||||
while turn.effects.len > 0:
|
||||
turnQueue.addLast turn.effects.pop()
|
||||
|
||||
proc run* =
|
||||
## Run actors to completion
|
||||
var ready: seq[Continuation]
|
||||
while true:
|
||||
while turnQueue.len > 0:
|
||||
var turn = turnQueue.popFirst()
|
||||
# TODO: check if actor is still valid
|
||||
run turn
|
||||
ioqueue.poll(ready)
|
||||
if ready.len == 0: break
|
||||
while ready.len > 0:
|
||||
discard trampoline:
|
||||
ready.pop()
|
||||
|
|
|
|||
|
|
@ -59,7 +59,7 @@ when defined(linux):
|
|||
|
||||
proc spawnTimerDriver(facet: Facet; cap: Cap): TimerDriver =
|
||||
let driver = TimerDriver(facet: facet, target: cap)
|
||||
facet.onStop do (turn: var Turn):
|
||||
facet.onStop do (turn: Turn):
|
||||
for fd in driver.timers:
|
||||
unregister(FD fd)
|
||||
discard close(fd)
|
||||
|
|
@ -89,16 +89,16 @@ when defined(linux):
|
|||
wait(FD fd, Read)
|
||||
if deadline in driver.deadlines:
|
||||
# Check if the deadline is still observed.
|
||||
proc turnWork(turn: var Turn) =
|
||||
proc turnWork(turn: Turn) =
|
||||
discard publish(turn, driver.target, LaterThan(seconds: deadline))
|
||||
run(driver.facet, turnWork)
|
||||
discard close(fd)
|
||||
driver.timers.excl(fd)
|
||||
|
||||
proc spawnTimerActor*(ds: Cap; turn: var Turn): Actor {.discardable.} =
|
||||
proc spawnTimerActor*(turn: Turn; ds: Cap): Actor {.discardable.} =
|
||||
## Spawn a timer actor that responds to
|
||||
## dataspace observations of timeouts on `ds`.
|
||||
spawnActor("timers", turn) do (turn: var Turn):
|
||||
spawnLink("timers", turn) do (turn: Turn):
|
||||
let driver = spawnTimerDriver(turn.facet, ds)
|
||||
let pat = inject(grab Observe(pattern: dropType LaterThan), {0: grabLit()})
|
||||
during(turn, ds, pat) do (deadline: float):
|
||||
|
|
@ -108,7 +108,7 @@ when defined(linux):
|
|||
discard change(driver.deadlines, deadline, -1, clamp = true)
|
||||
# TODO: retract assertions that are unobserved.
|
||||
|
||||
proc after*(turn: var Turn; ds: Cap; dur: Duration; act: TurnAction) =
|
||||
proc after*(turn: Turn; ds: Cap; dur: Duration; act: TurnAction) =
|
||||
## Execute `act` after some duration of time.
|
||||
var later = clock_realtime().toFloat() + dur.inMilliseconds.float / 1_000.0
|
||||
onPublish(turn, ds, grab LaterThan(seconds: later)):
|
||||
|
|
|
|||
|
|
@ -16,14 +16,14 @@ type
|
|||
index: Index
|
||||
handleMap: Table[Handle, Assertion]
|
||||
|
||||
method publish(ds: Dataspace; turn: var Turn; a: AssertionRef; h: Handle) =
|
||||
method publish(ds: Dataspace; turn: Turn; a: AssertionRef; h: Handle) =
|
||||
if add(ds.index, turn, a.value):
|
||||
var obs = a.value.preservesTo(Observe)
|
||||
if obs.isSome and obs.get.observer of Cap:
|
||||
ds.index.add(turn, obs.get.pattern, Cap(obs.get.observer))
|
||||
ds.handleMap[h] = a.value
|
||||
|
||||
method retract(ds: Dataspace; turn: var Turn; h: Handle) =
|
||||
method retract(ds: Dataspace; turn: Turn; h: Handle) =
|
||||
let v = ds.handleMap[h]
|
||||
if remove(ds.index, turn, v):
|
||||
ds.handleMap.del h
|
||||
|
|
@ -31,20 +31,20 @@ method retract(ds: Dataspace; turn: var Turn; h: Handle) =
|
|||
if obs.isSome and obs.get.observer of Cap:
|
||||
ds.index.remove(turn, obs.get.pattern, Cap(obs.get.observer))
|
||||
|
||||
method message(ds: Dataspace; turn: var Turn; a: AssertionRef) =
|
||||
method message(ds: Dataspace; turn: Turn; a: AssertionRef) =
|
||||
ds.index.deliverMessage(turn, a.value)
|
||||
|
||||
proc newDataspace*(turn: var Turn): Cap =
|
||||
proc newDataspace*(turn: Turn): Cap =
|
||||
newCap(turn, Dataspace(index: initIndex()))
|
||||
|
||||
type BootProc = proc (turn: var Turn; ds: Cap) {.closure.}
|
||||
type DeprecatedBootProc = proc (ds: Cap; turn: var Turn) {.closure.}
|
||||
type BootProc = proc (turn: Turn; ds: Cap) {.closure.}
|
||||
type DeprecatedBootProc = proc (ds: Cap; turn: Turn) {.closure.}
|
||||
|
||||
proc bootDataspace*(name: string; bootProc: BootProc): Actor =
|
||||
bootActor(name) do (turn: var Turn):
|
||||
bootActor(name) do (turn: Turn):
|
||||
discard turn.facet.preventInertCheck()
|
||||
bootProc(turn, newDataspace(turn))
|
||||
|
||||
proc bootDataspace*(name: string; bootProc: DeprecatedBootProc): Actor {.deprecated.} =
|
||||
bootDataspace(name) do (turn: var Turn, ds: Cap):
|
||||
bootDataspace(name) do (turn: Turn, ds: Cap):
|
||||
bootProc(ds, turn)
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ import preserves
|
|||
import ./actors, ./patterns, ./protocols/dataspace
|
||||
|
||||
type
|
||||
DuringProc* = proc (turn: var Turn; a: Value; h: Handle): TurnAction
|
||||
DuringProc* = proc (turn: Turn; a: Value; h: Handle): TurnAction
|
||||
DuringActionKind = enum null, dead, act
|
||||
DuringAction = object
|
||||
case kind: DuringActionKind
|
||||
|
|
@ -17,7 +17,7 @@ type
|
|||
cb: DuringProc
|
||||
assertionMap: Table[Handle, DuringAction]
|
||||
|
||||
method publish(de: DuringEntity; turn: var Turn; a: AssertionRef; h: Handle) =
|
||||
method publish(de: DuringEntity; turn: Turn; a: AssertionRef; h: Handle) =
|
||||
let action = de.cb(turn, a.value, h)
|
||||
# assert(not action.isNil "should have put in a no-op action")
|
||||
let g = de.assertionMap.getOrDefault h
|
||||
|
|
@ -30,7 +30,7 @@ method publish(de: DuringEntity; turn: var Turn; a: AssertionRef; h: Handle) =
|
|||
of act:
|
||||
raiseAssert("during: duplicate handle in publish: " & $h)
|
||||
|
||||
method retract(de: DuringEntity; turn: var Turn; h: Handle) =
|
||||
method retract(de: DuringEntity; turn: Turn; h: Handle) =
|
||||
let g = de.assertionMap.getOrDefault h
|
||||
case g.kind
|
||||
of null:
|
||||
|
|
@ -44,5 +44,5 @@ method retract(de: DuringEntity; turn: var Turn; h: Handle) =
|
|||
|
||||
proc during*(cb: DuringProc): DuringEntity = DuringEntity(cb: cb)
|
||||
|
||||
proc observe*(turn: var Turn; ds: Cap; pat: Pattern; e: Entity): Handle =
|
||||
proc observe*(turn: Turn; ds: Cap; pat: Pattern; e: Entity): Handle =
|
||||
publish(turn, ds, Observe(pattern: pat, observer: newCap(turn, e)))
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
import std/[hashes, tables]
|
||||
|
||||
from ./actors import Cap, hash
|
||||
import ./actors
|
||||
from ./protocols/sturdy import Oid
|
||||
|
||||
proc hash(r: Cap): Hash = !$(r.relay.hash !& r.target.unsafeAddr.hash)
|
||||
|
|
|
|||
|
|
@ -27,8 +27,8 @@ type
|
|||
Turn = syndicate.Turn
|
||||
WireRef = sturdy.WireRef
|
||||
|
||||
PacketWriter = proc (turn: var Turn; buf: seq[byte]) {.closure.}
|
||||
RelaySetup = proc (turn: var Turn; relay: Relay) {.closure.}
|
||||
PacketWriter = proc (turn: Turn; buf: seq[byte]) {.closure.}
|
||||
RelaySetup = proc (turn: Turn; relay: Relay) {.closure.}
|
||||
|
||||
Relay* = ref object
|
||||
facet: Facet
|
||||
|
|
@ -56,20 +56,20 @@ type
|
|||
proc releaseCapOut(r: Relay; e: WireSymbol) =
|
||||
r.exported.drop e
|
||||
|
||||
method publish(spe: SyncPeerEntity; t: var Turn; a: AssertionRef; h: Handle) =
|
||||
method publish(spe: SyncPeerEntity; t: Turn; a: AssertionRef; h: Handle) =
|
||||
spe.handleMap[h] = publish(t, spe.peer, a.value)
|
||||
|
||||
method retract(se: SyncPeerEntity; t: var Turn; h: Handle) =
|
||||
method retract(se: SyncPeerEntity; t: Turn; h: Handle) =
|
||||
var other: Handle
|
||||
if se.handleMap.pop(h, other):
|
||||
retract(t, other)
|
||||
|
||||
method message(se: SyncPeerEntity; t: var Turn; a: AssertionRef) =
|
||||
method message(se: SyncPeerEntity; t: Turn; a: AssertionRef) =
|
||||
if not se.e.isNil:
|
||||
se.relay.releaseCapOut(se.e)
|
||||
message(t, se.peer, a.value)
|
||||
|
||||
method sync(se: SyncPeerEntity; t: var Turn; peer: Cap) =
|
||||
method sync(se: SyncPeerEntity; t: Turn; peer: Cap) =
|
||||
sync(t, se.peer, peer)
|
||||
|
||||
proc newSyncPeerEntity(r: Relay; p: Cap): SyncPeerEntity =
|
||||
|
|
@ -106,40 +106,40 @@ proc deregister(relay: Relay; h: Handle) =
|
|||
if relay.outboundAssertions.pop(h, outbound):
|
||||
for e in outbound: releaseCapOut(relay, e)
|
||||
|
||||
proc send(relay: Relay; turn: var Turn; rOid: protocol.Oid; m: Event) =
|
||||
proc send(relay: Relay; turn: Turn; rOid: protocol.Oid; m: Event) =
|
||||
# TODO: don't send right away.
|
||||
var pendingTurn: protocol.Turn
|
||||
pendingTurn.add TurnEvent(oid: rOid, event: m)
|
||||
relay.facet.run do (turn: var Turn):
|
||||
relay.facet.run do (turn: Turn):
|
||||
var pkt = Packet(
|
||||
orKind: PacketKind.Turn,
|
||||
turn: pendingTurn)
|
||||
trace "C: ", pkt
|
||||
relay.packetWriter(turn, encode pkt)
|
||||
|
||||
proc send(re: RelayEntity; turn: var Turn; ev: Event) =
|
||||
proc send(re: RelayEntity; turn: Turn; ev: Event) =
|
||||
send(re.relay, turn, protocol.Oid re.oid, ev)
|
||||
|
||||
method publish(re: RelayEntity; t: var Turn; a: AssertionRef; h: Handle) =
|
||||
method publish(re: RelayEntity; t: Turn; a: AssertionRef; h: Handle) =
|
||||
re.send(t, Event(
|
||||
orKind: EventKind.Assert,
|
||||
`assert`: protocol.Assert(
|
||||
assertion: re.relay.register(a.value, h).rewritten,
|
||||
handle: h)))
|
||||
|
||||
method retract(re: RelayEntity; t: var Turn; h: Handle) =
|
||||
method retract(re: RelayEntity; t: Turn; h: Handle) =
|
||||
re.relay.deregister h
|
||||
re.send(t, Event(
|
||||
orKind: EventKind.Retract,
|
||||
retract: Retract(handle: h)))
|
||||
|
||||
method message(re: RelayEntity; turn: var Turn; msg: AssertionRef) =
|
||||
method message(re: RelayEntity; turn: Turn; msg: AssertionRef) =
|
||||
var (value, exported) = rewriteOut(re.relay, msg.value)
|
||||
assert(len(exported) == 0, "cannot send a reference in a message")
|
||||
if len(exported) == 0:
|
||||
re.send(turn, Event(orKind: EventKind.Message, message: Message(body: value)))
|
||||
|
||||
method sync(re: RelayEntity; turn: var Turn; peer: Cap) =
|
||||
method sync(re: RelayEntity; turn: Turn; peer: Cap) =
|
||||
var
|
||||
peerEntity = newSyncPeerEntity(re.relay, peer)
|
||||
exported: seq[WireSymbol]
|
||||
|
|
@ -193,7 +193,7 @@ proc rewriteIn(relay; facet; v: Value):
|
|||
|
||||
proc close(r: Relay) = discard
|
||||
|
||||
proc dispatch(relay: Relay; turn: var Turn; cap: Cap; event: Event) =
|
||||
proc dispatch(relay: Relay; turn: Turn; cap: Cap; event: Event) =
|
||||
case event.orKind
|
||||
of EventKind.Assert:
|
||||
let (a, imported) = rewriteIn(relay, turn.facet, event.assert.assertion)
|
||||
|
|
@ -216,14 +216,14 @@ proc dispatch(relay: Relay; turn: var Turn; cap: Cap; event: Event) =
|
|||
#[
|
||||
var imported: seq[WireSymbol]
|
||||
let k = relay.rewriteCapIn(turn, evenr.sync.peer, imported)
|
||||
turn.sync(cap) do (turn: var Turn):
|
||||
turn.sync(cap) do (turn: Turn):
|
||||
turn.message(k, true)
|
||||
for e in imported: relay.imported.del e
|
||||
]#
|
||||
|
||||
proc dispatch(relay: Relay; v: Value) =
|
||||
trace "S: ", v
|
||||
run(relay.facet) do (t: var Turn):
|
||||
run(relay.facet) do (t: Turn):
|
||||
var pkt: Packet
|
||||
if pkt.fromPreserves(v):
|
||||
case pkt.orKind
|
||||
|
|
@ -261,8 +261,10 @@ type
|
|||
initialCap*: Cap
|
||||
nextLocalOid*: Option[Oid]
|
||||
|
||||
proc spawnRelay(name: string; turn: var Turn; opts: RelayActorOptions; setup: RelaySetup) =
|
||||
spawnActor(name, turn) do (turn: var Turn):
|
||||
proc spawnRelay(name: string; turn: Turn; opts: RelayActorOptions; setup: RelaySetup) =
|
||||
stderr.writeLine "calling spawnActor for relay ", name
|
||||
spawnLink(name, turn) do (turn: Turn):
|
||||
stderr.writeLine "executing body of spawned actor relay ", name
|
||||
let relay = Relay(
|
||||
facet: turn.facet,
|
||||
packetWriter: opts.packetWriter,
|
||||
|
|
@ -301,40 +303,42 @@ when defined(posix):
|
|||
import pkg/sys/[files, handles, sockets]
|
||||
export transportAddress.Unix
|
||||
|
||||
type StdioControlEntity = ref object of Entity
|
||||
buf: ref seq[byte]
|
||||
type StdioEntity = ref object of Entity
|
||||
relay: Relay
|
||||
stdin: AsyncFile
|
||||
alive: bool
|
||||
|
||||
method message(entity: StdioControlEntity; turn: var Turn; ass: AssertionRef) =
|
||||
method message(entity: StdioEntity; turn: Turn; ass: AssertionRef) =
|
||||
if ass.value.preservesTo(ForceDisconnect).isSome:
|
||||
close(entity.stdin)
|
||||
entity.alive = false
|
||||
|
||||
proc loop(entity: StdioControlEntity) {.asyncio.} =
|
||||
new entity.buf
|
||||
entity.buf[].setLen(0x1000)
|
||||
while true:
|
||||
let n = read(entity.stdin, entity.buf)
|
||||
proc loop(entity: StdioEntity) {.asyncio.} =
|
||||
let buf = new seq[byte]
|
||||
entity.alive = true
|
||||
while entity.alive:
|
||||
buf[].setLen(0x1000)
|
||||
let n = read(entity.stdin, buf)
|
||||
if n == 0:
|
||||
stderr.writeLine "empty read on stdin, stopping actor"
|
||||
stopActor(entity.relay.facet)
|
||||
stopActor(entity.facet)
|
||||
else:
|
||||
entity.relay.recv(entity.buf[], 0..<n)
|
||||
entity.relay.recv(buf[], 0..<n)
|
||||
close(entity.stdin)
|
||||
|
||||
proc connectTransport(turn: var Turn; ds: Cap; ta: transportAddress.Stdio) =
|
||||
proc connectTransport(turn: Turn; ds: Cap; ta: transportAddress.Stdio) =
|
||||
## Connect to an external dataspace over stdio.
|
||||
proc stdoutWriter(turn: var Turn; buf: seq[byte]) =
|
||||
proc stdoutWriter(turn: Turn; buf: seq[byte]) =
|
||||
## Blocking write to stdout.
|
||||
let n = writeBytes(stdout, buf, 0, buf.len)
|
||||
flushFile(stdout)
|
||||
if n != buf.len:
|
||||
stderr.writeLine "short write to stdout, stopping actor"
|
||||
stopActor(turn)
|
||||
var opts = RelayActorOptions(
|
||||
packetWriter: stdoutWriter,
|
||||
initialCap: ds,
|
||||
initialOid: 0.Oid.some,
|
||||
)
|
||||
spawnRelay("stdio", turn, opts) do (turn: var Turn; relay: Relay):
|
||||
spawnRelay("stdio", turn, opts) do (turn: Turn; relay: Relay):
|
||||
let
|
||||
facet = turn.facet
|
||||
fd = stdin.getOsFileHandle()
|
||||
|
|
@ -342,17 +346,20 @@ when defined(posix):
|
|||
if flags < 0: raiseOSError(osLastError())
|
||||
if fcntl(fd.cint, F_SETFL, flags or O_NONBLOCK) < 0:
|
||||
raiseOSError(osLastError())
|
||||
let entity = StdioControlEntity(
|
||||
relay: relay, stdin: newAsyncFile(FD fd))
|
||||
let entity = StdioEntity(
|
||||
facet: turn.facet, relay: relay, stdin: newAsyncFile(FD fd))
|
||||
onStop(entity.facet) do (turn: Turn):
|
||||
stderr.writeLine "entity for stdio stopped, set alive to false"
|
||||
entity.alive = false
|
||||
discard trampoline:
|
||||
whelp loop(entity)
|
||||
publish(turn, ds, TransportConnection(
|
||||
`addr`: ta.toPreserves,
|
||||
control: newCap(entity, turn),
|
||||
resolved: relay.peer.accepted,
|
||||
))
|
||||
discard trampoline:
|
||||
whelp loop(entity)
|
||||
|
||||
proc connectStdio*(turn: var Turn; ds: Cap) =
|
||||
proc connectStdio*(turn: Turn; ds: Cap) =
|
||||
## Connect to an external dataspace over stdin and stdout.
|
||||
connectTransport(turn, ds, transportAddress.Stdio())
|
||||
|
||||
|
|
@ -360,54 +367,45 @@ when defined(posix):
|
|||
TcpEntity = ref object of Entity
|
||||
relay: Relay
|
||||
sock: AsyncConn[sockets.Protocol.TCP]
|
||||
buf: ref seq[byte]
|
||||
alive: bool
|
||||
|
||||
UnixEntity = ref object of Entity
|
||||
relay: Relay
|
||||
sock: AsyncConn[sockets.Protocol.Unix]
|
||||
buf: ref seq[byte]
|
||||
alive: bool
|
||||
|
||||
SocketEntity = TcpEntity | UnixEntity
|
||||
|
||||
method message(entity: SocketEntity; turn: var Turn; ass: AssertionRef) =
|
||||
method message(entity: SocketEntity; turn: Turn; ass: AssertionRef) =
|
||||
if ass.value.preservesTo(ForceDisconnect).isSome:
|
||||
reset entity.alive
|
||||
close(entity.sock)
|
||||
|
||||
template socketLoop() {.dirty.}=
|
||||
new entity.buf
|
||||
entity.buf[].setLen(0x1000)
|
||||
entity.alive = not entity.alive
|
||||
while entity.alive:
|
||||
let n = read(entity.sock, entity.buf)
|
||||
if n < 0: raiseOSError(osLastError())
|
||||
elif n == 0:
|
||||
stderr.writeLine "empty read on socket, stopping actor"
|
||||
stopActor(entity.relay.facet)
|
||||
else:
|
||||
entity.relay.recv(entity.buf[], 0..<n)
|
||||
stderr.writeLine "breaking socketLoop"
|
||||
|
||||
proc loop(entity: TcpEntity) {.asyncio.} =
|
||||
socketLoop()
|
||||
proc loop(entity: UnixEntity) {.asyncio.} =
|
||||
socketLoop()
|
||||
entity.alive = false
|
||||
|
||||
type ShutdownEntity = ref object of Entity
|
||||
method retract(e: ShutdownEntity; turn: var Turn; h: Handle) =
|
||||
stopActor(turn)
|
||||
method retract(e: ShutdownEntity; turn: Turn; h: Handle) =
|
||||
stopActor(e.facet)
|
||||
|
||||
template bootSocketEntity() {.dirty.} =
|
||||
proc publish(turn: var Turn) =
|
||||
proc setup(turn: Turn) {.closure.} =
|
||||
proc kill(turn: Turn) =
|
||||
entity.alive = false
|
||||
onStop(turn, kill)
|
||||
publish(turn, ds, TransportConnection(
|
||||
`addr`: ta.toPreserves,
|
||||
control: newCap(entity, turn),
|
||||
resolved: entity.relay.peer.accepted,
|
||||
))
|
||||
run(entity.relay.facet, publish)
|
||||
loop(entity)
|
||||
run(entity.relay.facet, setup)
|
||||
let buf = new seq[byte]
|
||||
entity.alive = true
|
||||
while entity.alive:
|
||||
buf[].setLen(0x1000)
|
||||
let n = read(entity.sock, buf)
|
||||
if n < 0: raiseOSError(osLastError())
|
||||
elif n == 0:
|
||||
stopActor(entity.facet)
|
||||
else:
|
||||
entity.relay.recv(buf[], 0..<n)
|
||||
close(entity.sock)
|
||||
|
||||
proc boot(entity: TcpEntity; ta: transportAddress.Tcp; ds: Cap) {.asyncio.} =
|
||||
entity.sock = connectTcpAsync(ta.host, Port ta.port)
|
||||
|
|
@ -418,30 +416,30 @@ when defined(posix):
|
|||
bootSocketEntity()
|
||||
|
||||
template spawnSocketRelay() {.dirty.} =
|
||||
proc writeConn(turn: var Turn; buf: seq[byte]) =
|
||||
proc writeConn(turn: Turn; buf: seq[byte]) =
|
||||
stderr.writeLine "writing to socket…"
|
||||
discard trampoline:
|
||||
whelp write(entity.sock, buf)
|
||||
stderr.writeLine "maybe wrote to to socket"
|
||||
var ops = RelayActorOptions(
|
||||
packetWriter: writeConn,
|
||||
initialOid: 0.Oid.some,
|
||||
)
|
||||
spawnRelay("socket", turn, ops) do (turn: var Turn; relay: Relay):
|
||||
spawnRelay("socket", turn, ops) do (turn: Turn; relay: Relay):
|
||||
entity.facet = turn.facet
|
||||
entity.relay = relay
|
||||
atExit(turn.facet.actor) do (turn: var Turn):
|
||||
entity.alive = false
|
||||
close(entity.sock)
|
||||
discard trampoline:
|
||||
whelp boot(entity, ta, ds)
|
||||
|
||||
proc connectTransport(turn: var Turn; ds: Cap; ta: transportAddress.Tcp) =
|
||||
proc connectTransport(turn: Turn; ds: Cap; ta: transportAddress.Tcp) =
|
||||
let entity = TcpEntity()
|
||||
spawnSocketRelay()
|
||||
|
||||
proc connectTransport(turn: var Turn; ds: Cap; ta: transportAddress.Unix) =
|
||||
proc connectTransport(turn: Turn; ds: Cap; ta: transportAddress.Unix) =
|
||||
let entity = UnixEntity()
|
||||
spawnSocketRelay()
|
||||
|
||||
proc walk(turn: var Turn; ds, origin: Cap; route: Route; transOff, stepOff: int) =
|
||||
proc walk(turn: Turn; ds, origin: Cap; route: Route; transOff, stepOff: int) =
|
||||
if stepOff < route.pathSteps.len:
|
||||
let
|
||||
step = route.pathSteps[stepOff]
|
||||
|
|
@ -464,7 +462,7 @@ proc walk(turn: var Turn; ds, origin: Cap; route: Route; transOff, stepOff: int)
|
|||
resolved: origin.accepted,
|
||||
))
|
||||
|
||||
proc connectRoute(turn: var Turn; ds: Cap; route: Route; transOff: int) =
|
||||
proc connectRoute(turn: Turn; ds: Cap; route: Route; transOff: int) =
|
||||
let rejectPat = TransportConnection ?: {
|
||||
0: ?route.transports[transOff],
|
||||
2: ?:Rejected,
|
||||
|
|
@ -482,71 +480,68 @@ proc connectRoute(turn: var Turn; ds: Cap; route: Route; transOff: int) =
|
|||
onPublish(turn, ds, acceptPat) do (origin: Cap):
|
||||
walk(turn, ds, origin, route, transOff, 0)
|
||||
|
||||
type StepCallback = proc (turn: var Turn; step: Value; origin, next: Cap) {.closure.}
|
||||
type StepCallback = proc (turn: Turn; step: Value; origin, next: Cap) {.closure.}
|
||||
|
||||
proc spawnStepResolver(turn: var Turn; ds: Cap; stepType: Value; cb: StepCallback) =
|
||||
spawnActor($stepType & "-step", turn) do (turn: var Turn):
|
||||
let stepPat = grabRecord(stepType, grab())
|
||||
let pat = ?Observe(pattern: ResolvedPathStep?:{1: stepPat}) ?? {0: grabLit(), 1: grab()}
|
||||
during(turn, ds, pat) do (origin: Cap; stepDetail: Literal[Value]):
|
||||
let step = toRecord(stepType, stepDetail.value)
|
||||
proc duringCallback(turn: var Turn; ass: Value; h: Handle): TurnAction =
|
||||
var res = ass.preservesTo Resolved
|
||||
if res.isSome:
|
||||
if res.get.orKind == ResolvedKind.accepted and
|
||||
res.get.accepted.responderSession of Cap:
|
||||
cb(turn, step, origin, res.get.accepted.responderSession.Cap)
|
||||
else:
|
||||
publish(turn, ds, ResolvedPathStep(
|
||||
origin: origin, pathStep: step, resolved: res.get))
|
||||
proc action(turn: var Turn) =
|
||||
stop(turn)
|
||||
result = action
|
||||
publish(turn, origin, Resolve(
|
||||
step: step, observer: newCap(turn, during(duringCallback))))
|
||||
proc spawnStepResolver(turn: Turn; ds: Cap; stepType: Value; cb: StepCallback) =
|
||||
let stepPat = grabRecord(stepType, grab())
|
||||
let pat = ?Observe(pattern: ResolvedPathStep?:{1: stepPat}) ?? {0: grabLit(), 1: grab()}
|
||||
during(turn, ds, pat) do (origin: Cap; stepDetail: Literal[Value]):
|
||||
let step = toRecord(stepType, stepDetail.value)
|
||||
proc duringCallback(turn: Turn; ass: Value; h: Handle): TurnAction =
|
||||
var res = ass.preservesTo Resolved
|
||||
if res.isSome:
|
||||
if res.get.orKind == ResolvedKind.accepted and
|
||||
res.get.accepted.responderSession of Cap:
|
||||
cb(turn, step, origin, res.get.accepted.responderSession.Cap)
|
||||
else:
|
||||
publish(turn, ds, ResolvedPathStep(
|
||||
origin: origin, pathStep: step, resolved: res.get))
|
||||
proc action(turn: Turn) =
|
||||
stop(turn)
|
||||
result = action
|
||||
publish(turn, origin, Resolve(
|
||||
step: step, observer: newCap(turn, during(duringCallback))))
|
||||
|
||||
proc spawnRelays*(turn: var Turn; ds: Cap) =
|
||||
proc spawnRelays*(turn: Turn; ds: Cap) =
|
||||
## Spawn actors that manage routes and appeasing gatekeepers.
|
||||
spawnActor("transport-connector", turn) do (turn: var Turn):
|
||||
let pat = ?Observe(pattern: !TransportConnection) ?? { 0: grab() }
|
||||
# Use a generic pattern and type matching
|
||||
# in the during handler because it is easy.
|
||||
stderr.writeLine "spawnRelays body is running"
|
||||
let transPat = ?Observe(pattern: !TransportConnection) ?? { 0: grab() }
|
||||
# Use a generic pattern and type matching
|
||||
# in the during handler because it is easy.
|
||||
|
||||
let stdioPat = ?Observe(pattern: TransportConnection?:{0: ?:Stdio})
|
||||
during(turn, ds, stdioPat) do:
|
||||
connectTransport(turn, ds, Stdio())
|
||||
let stdioPat = ?Observe(pattern: TransportConnection?:{0: ?:Stdio})
|
||||
during(turn, ds, stdioPat) do:
|
||||
connectTransport(turn, ds, Stdio())
|
||||
|
||||
# TODO: tcp pattern
|
||||
during(turn, ds, transPat) do (ta: Literal[transportAddress.Tcp]):
|
||||
try: connectTransport(turn, ds, ta.value)
|
||||
except CatchableError as e:
|
||||
publish(turn, ds, TransportConnection(
|
||||
`addr`: ta.toPreserve,
|
||||
resolved: rejected(embed e),
|
||||
))
|
||||
|
||||
# TODO: tcp pattern
|
||||
during(turn, ds, pat) do (ta: Literal[transportAddress.Tcp]):
|
||||
try: connectTransport(turn, ds, ta.value)
|
||||
except CatchableError as e:
|
||||
publish(turn, ds, TransportConnection(
|
||||
`addr`: ta.toPreserve,
|
||||
resolved: rejected(embed e),
|
||||
))
|
||||
# TODO: unix pattern
|
||||
during(turn, ds, transPat) do (ta: Literal[transportAddress.Unix]):
|
||||
try: connectTransport(turn, ds, ta.value)
|
||||
except CatchableError as e:
|
||||
publish(turn, ds, TransportConnection(
|
||||
`addr`: ta.toPreserve,
|
||||
resolved: rejected(embed e),
|
||||
))
|
||||
|
||||
# TODO: unix pattern
|
||||
during(turn, ds, pat) do (ta: Literal[transportAddress.Unix]):
|
||||
try: connectTransport(turn, ds, ta.value)
|
||||
except CatchableError as e:
|
||||
publish(turn, ds, TransportConnection(
|
||||
`addr`: ta.toPreserve,
|
||||
resolved: rejected(embed e),
|
||||
))
|
||||
|
||||
spawnActor("path-resolver", turn) do (turn: var Turn):
|
||||
let pat = ?Observe(pattern: !ResolvePath) ?? {0: grab()}
|
||||
during(turn, ds, pat) do (route: Literal[Route]):
|
||||
for i, transAddr in route.value.transports:
|
||||
connectRoute(turn, ds, route.value, i)
|
||||
let resolvePat = ?Observe(pattern: !ResolvePath) ?? {0: grab()}
|
||||
during(turn, ds, resolvePat) do (route: Literal[Route]):
|
||||
for i, transAddr in route.value.transports:
|
||||
connectRoute(turn, ds, route.value, i)
|
||||
|
||||
spawnStepResolver(turn, ds, "ref".toSymbol) do (
|
||||
turn: var Turn, step: Value, origin: Cap, next: Cap):
|
||||
turn: Turn, step: Value, origin: Cap, next: Cap):
|
||||
publish(turn, ds, ResolvedPathStep(
|
||||
origin: origin, pathStep: step, resolved: next.accepted))
|
||||
|
||||
type BootProc* = proc (turn: var Turn; ds: Cap) {.closure.}
|
||||
type BootProc* = proc (turn: Turn; ds: Cap) {.closure.}
|
||||
|
||||
const defaultRoute* = "<route [<stdio>]>"
|
||||
|
||||
|
|
@ -565,12 +560,12 @@ proc envRoute*: Route =
|
|||
if not result.fromPreserves(pr):
|
||||
raise newException(ValueError, "failed to parse $SYNDICATE_ROUTE " & $pr)
|
||||
|
||||
proc resolve*(turn: var Turn; ds: Cap; route: Route; bootProc: BootProc) =
|
||||
proc resolve*(turn: Turn; ds: Cap; route: Route; bootProc: BootProc) =
|
||||
## Resolve `route` within `ds` and call `bootProc` with resolved capabilities.
|
||||
during(turn, ds, ResolvePath ?: {0: ?route, 3: ?:ResolvedAccepted}) do (dst: Cap):
|
||||
bootProc(turn, dst)
|
||||
|
||||
proc resolveEnvironment*(turn: var Turn; bootProc: BootProc) =
|
||||
proc resolveEnvironment*(turn: Turn; bootProc: BootProc) =
|
||||
## Resolve a capability from the calling environment
|
||||
## and call `bootProc`. See envRoute_.
|
||||
let
|
||||
|
|
|
|||
|
|
@ -67,7 +67,7 @@ func isEmpty(cont: Continuation): bool =
|
|||
type
|
||||
ContinuationProc = proc (c: Continuation; v: Value) {.closure.}
|
||||
LeafProc = proc (l: Leaf; v: Value) {.closure.}
|
||||
ObserverProc = proc (turn: var Turn; group: ObserverGroup; vs: seq[Value]) {.closure.}
|
||||
ObserverProc = proc (turn: Turn; group: ObserverGroup; vs: seq[Value]) {.closure.}
|
||||
|
||||
proc getLeaves(cont: Continuation; constPaths: Paths): LeafMap =
|
||||
result = cont.leafMap.getOrDefault(constPaths)
|
||||
|
|
@ -114,10 +114,10 @@ proc top(stack: TermStack): Value =
|
|||
assert stack.len > 0
|
||||
stack[stack.high]
|
||||
|
||||
proc modify(node: Node; turn: var Turn; outerValue: Value; event: EventKind;
|
||||
proc modify(node: Node; turn: Turn; outerValue: Value; event: EventKind;
|
||||
modCont: ContinuationProc; modLeaf: LeafProc; modObs: ObserverProc) =
|
||||
|
||||
proc walk(cont: Continuation; turn: var Turn) =
|
||||
proc walk(cont: Continuation; turn: Turn) =
|
||||
modCont(cont, outerValue)
|
||||
for constPaths, constValMap in cont.leafMap.pairs:
|
||||
let constVals = projectPaths(outerValue, constPaths)
|
||||
|
|
@ -142,7 +142,7 @@ proc modify(node: Node; turn: var Turn; outerValue: Value; event: EventKind;
|
|||
constValMap.del(get constVals)
|
||||
|
||||
|
||||
proc walk(node: Node; turn: var Turn; termStack: TermStack) =
|
||||
proc walk(node: Node; turn: Turn; termStack: TermStack) =
|
||||
walk(node.continuation, turn)
|
||||
for selector, table in node.edges:
|
||||
let
|
||||
|
|
@ -227,7 +227,7 @@ proc getEndpoints(leaf: Leaf; capturePaths: Paths): ObserverGroup =
|
|||
if captures.isSome:
|
||||
discard result.cachedCaptures.change(get captures, +1)
|
||||
|
||||
proc add*(index: var Index; turn: var Turn; pattern: Pattern; observer: Cap) =
|
||||
proc add*(index: var Index; turn: Turn; pattern: Pattern; observer: Cap) =
|
||||
let
|
||||
cont = index.root.extend(pattern)
|
||||
analysis = analyse pattern
|
||||
|
|
@ -240,7 +240,7 @@ proc add*(index: var Index; turn: var Turn; pattern: Pattern; observer: Cap) =
|
|||
captureMap[capture] = publish(turn, observer, capture)
|
||||
endpoints.observers[observer] = captureMap
|
||||
|
||||
proc remove*(index: var Index; turn: var Turn; pattern: Pattern; observer: Cap) =
|
||||
proc remove*(index: var Index; turn: Turn; pattern: Pattern; observer: Cap) =
|
||||
let
|
||||
cont = index.root.extend(pattern)
|
||||
analysis = analyse pattern
|
||||
|
|
@ -260,7 +260,7 @@ proc remove*(index: var Index; turn: var Turn; pattern: Pattern; observer: Cap)
|
|||
if constValMap.len == 0:
|
||||
cont.leafMap.del(analysis.constPaths)
|
||||
|
||||
proc adjustAssertion(index: var Index; turn: var Turn; outerValue: Value; delta: int): bool =
|
||||
proc adjustAssertion(index: var Index; turn: Turn; outerValue: Value; delta: int): bool =
|
||||
case index.allAssertions.change(outerValue, delta)
|
||||
of cdAbsentToPresent:
|
||||
result = true
|
||||
|
|
@ -268,7 +268,7 @@ proc adjustAssertion(index: var Index; turn: var Turn; outerValue: Value; delta:
|
|||
c.cache.incl(v)
|
||||
proc modLeaf(l: Leaf; v: Value) =
|
||||
l.cache.incl(v)
|
||||
proc modObserver(turn: var Turn; group: ObserverGroup; vs: seq[Value]) =
|
||||
proc modObserver(turn: Turn; group: ObserverGroup; vs: seq[Value]) =
|
||||
let change = group.cachedCaptures.change(vs, +1)
|
||||
if change == cdAbsentToPresent:
|
||||
for (observer, captureMap) in group.observers.pairs:
|
||||
|
|
@ -281,7 +281,7 @@ proc adjustAssertion(index: var Index; turn: var Turn; outerValue: Value; delta:
|
|||
c.cache.excl(v)
|
||||
proc modLeaf(l: Leaf; v: Value) =
|
||||
l.cache.excl(v)
|
||||
proc modObserver(turn: var Turn; group: ObserverGroup; vs: seq[Value]) =
|
||||
proc modObserver(turn: Turn; group: ObserverGroup; vs: seq[Value]) =
|
||||
if group.cachedCaptures.change(vs, -1) == cdPresentToAbsent:
|
||||
for (observer, captureMap) in group.observers.pairs:
|
||||
var h: Handle
|
||||
|
|
@ -293,12 +293,12 @@ proc adjustAssertion(index: var Index; turn: var Turn; outerValue: Value; delta:
|
|||
proc continuationNoop(c: Continuation; v: Value) = discard
|
||||
proc leafNoop(l: Leaf; v: Value) = discard
|
||||
|
||||
proc add*(index: var Index; turn: var Turn; v: Value): bool =
|
||||
proc add*(index: var Index; turn: Turn; v: Value): bool =
|
||||
adjustAssertion(index, turn, v, +1)
|
||||
proc remove*(index: var Index; turn: var Turn; v: Value): bool =
|
||||
proc remove*(index: var Index; turn: Turn; v: Value): bool =
|
||||
adjustAssertion(index, turn, v, -1)
|
||||
|
||||
proc deliverMessage*(index: var Index; turn: var Turn; v: Value) =
|
||||
proc observersCb(turn: var Turn; group: ObserverGroup; vs: seq[Value]) =
|
||||
proc deliverMessage*(index: var Index; turn: Turn; v: Value) =
|
||||
proc observersCb(turn: Turn; group: ObserverGroup; vs: seq[Value]) =
|
||||
for observer in group.observers.keys: message(turn, observer, vs)
|
||||
index.root.modify(turn, v, messageEvent, continuationNoop, leafNoop, observersCb)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
# Package
|
||||
|
||||
version = "20240304"
|
||||
version = "20240308"
|
||||
author = "Emery Hemingway"
|
||||
description = "Syndicated actors for conversational concurrency"
|
||||
license = "Unlicense"
|
||||
|
|
|
|||
|
|
@ -5,21 +5,21 @@ import std/times
|
|||
import pkg/sys/ioqueue
|
||||
import syndicate, syndicate/actors/timers
|
||||
|
||||
let actor = bootActor("timer-test") do (turn: var Turn):
|
||||
let actor = bootActor("timer-test") do (turn: Turn):
|
||||
let timers = newDataspace(turn)
|
||||
spawnTimerActor(timers, turn)
|
||||
|
||||
onPublish(turn, timers, ?LaterThan(seconds: 1356100000)):
|
||||
echo "now in 13th bʼakʼtun"
|
||||
|
||||
after(turn, timers, initDuration(seconds = 3)) do (turn: var Turn):
|
||||
after(turn, timers, initDuration(seconds = 3)) do (turn: Turn):
|
||||
echo "third timer expired"
|
||||
stopActor(turn)
|
||||
|
||||
after(turn, timers, initDuration(seconds = 1)) do (turn: var Turn):
|
||||
after(turn, timers, initDuration(seconds = 1)) do (turn: Turn):
|
||||
echo "first timer expired"
|
||||
|
||||
after(turn, timers, initDuration(seconds = 2)) do (turn: var Turn):
|
||||
after(turn, timers, initDuration(seconds = 2)) do (turn: Turn):
|
||||
echo "second timer expired"
|
||||
|
||||
echo "single run of ioqueue"
|
||||
|
|
|
|||
Loading…
Reference in New Issue