Break up sockets module, don't link libnix, wopAddToStore
This commit is contained in:
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9a0d2a22ec
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584c01ef08
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@ -34,8 +34,7 @@ A demo script for the [Syndicate server](https://git.syndicate-lang.org/syndicat
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} }>
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]
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? <path-info "/nix/store/jhgh02lyizd1kyl71brvc01ygsmgi40a-tzdata-2023c"
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?deriver ?narHash _ _ ?narSize _ ?sigs _> [
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? <path-info "/nix/store/jhgh02lyizd1kyl71brvc01ygsmgi40a-tzdata-2023c" ?deriver ?narHash _ _ ?narSize _ ?sigs _> [
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$log ! <log "-" { tzdata-2023c: {
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deriver: $deriver
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narHash: $narHash
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@ -1,4 +1,5 @@
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include ../eris-nim/depends.tup
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NIM_FLAGS += --path:$(TUP_CWD)/../eris-nim/src
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include ../syndicate-nim/depends.tup
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NIM_FLAGS += --path:$(TUP_CWD)/../syndicate-nim/src
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NIM_FLAGS += --backend:cpp
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@ -1,9 +1,8 @@
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version = "20230610"
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version = "20230611"
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author = "Emery Hemingway"
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description = "Syndicated Nix Actor"
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license = "Unlicense"
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srcDir = "src"
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bin = @["nix_actor"]
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backend = "cpp"
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requires "nim >= 1.6.10", "syndicate >= 20230530"
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65
protocol.prs
65
protocol.prs
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@ -1,19 +1,19 @@
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version 1 .
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StringSeq = [string ...] .
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StringSet = #{string} .
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AttrSet = {symbol: any ...:...} .
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Build = <nix-build @input string @output any> .
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Realise = <realise @drv string @outputs [string ...]> .
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Realise = <realise @drv string @outputs StringSeq> .
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Instantiate = <instantiate @expr string @options Dict @result any> .
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Instantiate = <instantiate @expr string @options AttrSet @result any> .
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Eval = <eval @expr string @options {symbol: any ...:...} @result any> .
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Narinfo = <narinfo @path string @info Dict> .
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Narinfo = <narinfo @path string @info AttrSet> .
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Dict = {symbol: any ...:...} .
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FieldInt = int .
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FieldString = string .
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Field = int / string .
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Fields = [Field ...] .
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@ -22,16 +22,43 @@ ActionStop = <stop @id int> .
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ActionResult = <result @id int @type int @fields Fields> .
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; TODO: why not make target a singleton?
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Missing = <missing @targets [string ...] @willBuild #{string} @willSubstitute #{string} @unknown #{string} @downloadSize int @narSize int> .
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Missing = <missing @targets StringSeq @willBuild StringSet @willSubstitute StringSet @unknown StringSet @downloadSize int @narSize int> .
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; TODO keep a few critical fields and move the rest into a dictionary
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PathInfo = <path-info
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@path string
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@deriver string
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@narHash string
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@references #{string}
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@registrationTime int
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@narSize int
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@ultimate bool
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@sigs #{string}
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@ca string> .
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; Path info for the worker protocol version 35.
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LegacyPathAttrs = {
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deriver: string
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narHash: string
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references: StringSeq ; prefer a set
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registrationTime: int
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narSize: int
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ultimate: bool
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sigs: StringSet
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ca: string
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} .
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AddToStoreClientAttrs = {
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name: string
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eris: bytes
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ca-method: symbol
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references: StringSeq ; prefer a set
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} .
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; Intersection of the attributes needed to add a path to a store
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; and the attributes returned by the daemon after adding the path.
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AddToStoreAttrs = {
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name: string
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eris: bytes
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ca-method: symbol
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references: StringSeq ; prefer a set
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deriver: string
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narHash: string
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registrationTime: int
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narSize: int
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ultimate: bool
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sigs: StringSet
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ca: string
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} .
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; Any collection of attributes describing a store path.
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PathInfo = <path @path string @attrs AttrSet> .
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@ -1,18 +1,20 @@
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# SPDX-FileCopyrightText: ☭ Emery Hemingway
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# SPDX-License-Identifier: Unlicense
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import std/[asyncdispatch, httpclient, json, osproc, parseutils, strutils, tables]
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import std/[json, osproc, parseutils, strutils, tables]
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import eris/memory_stores
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import preserves, preserves/jsonhooks
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import syndicate
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from syndicate/protocols/dataspace import Observe
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import ./nix_actor/protocol
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import ./nix_actor/[main, sockets]
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import ./nix_actor/[clients, daemons]
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type
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Value = Preserve[void]
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Observe = dataspace.Observe[Ref]
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proc parseArgs(args: var seq[string]; opts: Dict) =
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proc parseArgs(args: var seq[string]; opts: AttrSet) =
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for sym, val in opts:
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add(args, "--" & $sym)
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if not val.isString "":
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@ -20,7 +22,8 @@ proc parseArgs(args: var seq[string]; opts: Dict) =
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if fromPreserve(js, val): add(args, $js)
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else: stderr.writeLine "invalid option --", sym, " ", val
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proc parseNarinfo(info: var Dict; text: string) =
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#[
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proc parseNarinfo(info: var AttrSet; text: string) =
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var
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key, val: string
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off: int
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@ -50,6 +53,7 @@ proc narinfo(turn: var Turn; ds: Ref; path: string) =
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var narinfo = Narinfo(path: path)
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parseNarinfo(narinfo.info, read(futBody))
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discard publish(turn, ds, narinfo)
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]# # I never link to openssl if I can avoid it.
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proc build(spec: string): Build =
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var execOutput = execProcess("nix", args = ["build", "--json", "--no-link", spec], options = {poUsePath})
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@ -104,8 +108,10 @@ proc bootNixFacet(turn: var Turn; ds: Ref): Facet =
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ass.result = eval(ass)
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discard publish(turn, ds, ass)
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#[
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during(turn, ds, ?Observe(pattern: !Narinfo) ?? {0: grabLit()}) do (path: string):
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narinfo(turn, ds, path)
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]#
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type
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RefArgs {.preservesDictionary.} = object
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@ -115,17 +121,15 @@ type
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DaemonSideArgs {.preservesDictionary.} = object
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`daemon-socket`: string
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proc bootNixActor(root: Ref; turn: var Turn) =
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runActor("main") do (root: Ref; turn: var Turn):
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let store = newMemoryStore()
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connectStdio(root, turn)
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during(turn, root, ?RefArgs) do (ds: Ref):
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discard bootNixFacet(turn, ds)
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during(turn, root, ?ClientSideArgs) do (socketPath: string):
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bootClientSide(turn.facet, ds, socketPath)
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bootClientSide(turn, ds, store, socketPath)
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during(turn, root, ?DaemonSideArgs) do (socketPath: string):
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bootDaemonSide(turn, ds, socketPath)
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initNix() # Nix lib isn't actually being used but it's nice to know that it links.
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runActor("main", bootNixActor)
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bootDaemonSide(turn, ds, store, socketPath)
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@ -1 +0,0 @@
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define:ssl
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@ -0,0 +1,172 @@
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# SPDX-FileCopyrightText: ☭ Emery Hemingway
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# SPDX-License-Identifier: Unlicense
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import std/[asyncdispatch, asyncnet, os, sets, strutils, tables]
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from std/algorithm import sort
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import eris
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import preserves, syndicate
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import ./protocol, ./sockets
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proc sendNext(client: Session; msg: string) {.async.} =
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await send(client, STDERR_NEXT)
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await send(client, msg)
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proc sendWorkEnd(client: Session): Future[void] =
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send(client, STDERR_LAST)
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proc send(client: Session; miss: Missing) {.async.} =
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await sendWorkEnd(client)
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await send(client, miss.willBuild)
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await send(client, miss.willSubstitute)
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await send(client, miss.unknown)
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await send(client, Word miss.downloadSize)
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await send(client, Word miss.narSize)
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proc send(client: Session; info: LegacyPathAttrs) {.async.} =
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await send(client, info.deriver)
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await send(client, info.narHash)
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await send(client, info.references)
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await send(client, Word info.registrationTime)
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await send(client, Word info.narSize)
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await send(client, Word info.ultimate)
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await send(client, info.sigs)
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await send(client, info.ca)
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proc sendValidInfo(client: Session; info: LegacyPathAttrs) {.async.} =
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await sendWorkEnd(client)
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await send(client, 1) # valid
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await send(client, info)
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proc completeAddToStore(client: Session; path: string; info: LegacyPathAttrs) {.async.} =
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await sendWorkEnd(client)
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await send(client, path)
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await send(client, info)
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proc serveClient(facet: Facet; ds: Ref; store: ErisStore; client: Session) {.async.} =
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block:
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let clientMagic = await recvWord(client)
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if clientMagic != WORKER_MAGIC_1:
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raise newException(ProtocolError, "invalid protocol magic")
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await send(client, WORKER_MAGIC_2, PROTOCOL_VERSION)
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let clientVersion = Version(await recvWord(client))
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if clientVersion < 0x1_21:
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raise newException(ProtocolError, "obsolete protocol version")
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assert clientVersion.minor >= 14
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discard await(recvWord(client))
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# obsolete CPU affinity
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assert clientVersion.minor >= 11
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discard await(recvWord(client))
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# obsolete reserveSpace
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assert clientVersion.minor >= 33
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await send(client, "0.0.0")
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await sendWorkEnd(client)
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while not client.socket.isClosed:
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let wop = await recvWord(client.socket)
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case wop
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of wopAddToStore:
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let
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name = await recvString(client)
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caMethod = await recvString(client)
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var storeRefs = await recvStringSeq(client)
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sort(storeRefs) # sets not valid for patterns so use a sorted list
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discard await recvWord(client) # repair, not implemented
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let cap = await ingestChunks(client, store)
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await sendNext(client, $cap & " " & name)
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let attrsPat = inject(?AddToStoreAttrs, {
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"name".toSymbol(Ref): ?name,
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"ca-method".toSymbol(Ref): ?caMethod.toSymbol,
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"references".toSymbol(Ref): ?storeRefs,
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"eris".toSymbol(Ref): ?cap.bytes,
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})
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# bind AddToStoreAttrs and override with some literal values
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let pat = PathInfo ? { 0: grab(), 1: attrsPat }
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run(facet) do (turn: var Turn):
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onPublish(turn, ds, pat) do (path: string, ca: string, deriver: string, narHash: string, narSize: BiggestInt, regTime: BiggestInt, sigs: StringSet, ultimate: bool):
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asyncCheck(turn, completeAddToStore(client, path, LegacyPathAttrs(
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ca: ca,
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deriver: deriver,
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narHash: narHash,
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narSize: narSize,
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references: storeRefs,
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registrationTime: regTime,
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sigs: sigs,
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ultimate: ultimate,
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)))
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of wopQueryPathInfo:
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let
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path = await recvString(client)
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pat = PathInfo ? { 0: ?path, 1: grab() }
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run(facet) do (turn: var Turn):
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onPublish(turn, ds, pat) do (info: LegacyPathAttrs):
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asyncCheck(turn, sendValidInfo(client, info))
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of wopQueryMissing:
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var targets = toPreserve(await recvStringSeq(client))
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sort(targets.sequence)
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# would prefer to use a set but that doesn't translate into a pattern
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let pat = inject(?Missing, { 0: ?targets })
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run(facet) do (turn: var Turn):
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onPublish(turn, ds, pat) do (
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willBuild: StringSet,
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willSubstitute: StringSet,
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unknown: StringSet,
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downloadSize: BiggestInt,
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narSize: BiggestInt
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):
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let miss = Missing(
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willBuild: willBuild,
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willSubstitute: willSubstitute,
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unknown: unknown,
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downloadSize: downloadSize,
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narSize: narSize,
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)
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asyncCheck(turn, send(client, miss))
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of wopSetOptions:
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await discardWords(client, 12)
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# 01 keepFailed
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# 02 keepGoing
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# 03 tryFallback
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# 04 verbosity
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# 05 maxBuildJobs
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# 06 maxSilentTime
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# 07 useBuildHook
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# 08 verboseBuild
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# 09 logType
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# 10 printBuildTrace
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# 11 buildCores
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# 12 useSubstitutes
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let overridePairCount = await recvWord(client)
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for _ in 1..overridePairCount:
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discard await (recvString(client))
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discard await (recvString(client))
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await sendWorkEnd(client)
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# all options from the client are ingored
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else:
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let msg = "unhandled worker op " & $wop.int
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await sendNext(client, msg)
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await sendWorkEnd(client)
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close(client.socket)
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proc serveClientSide(facet: Facet; ds: Ref; store: ErisStore; listener: AsyncSocket) {.async.} =
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while not listener.isClosed:
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let
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client = await accept(listener)
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fut = serveClient(facet, ds, store, newSession(client))
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addCallback(fut) do ():
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if not client.isClosed:
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close(client)
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proc bootClientSide*(turn: var Turn; ds: Ref; store: ErisStore; socketPath: string) =
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let listener = newUnixSocket()
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onStop(turn.facet) do (turn: var Turn):
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close(listener)
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removeFile(socketPath)
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removeFile(socketPath)
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bindUnix(listener, socketPath)
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listen(listener)
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asyncCheck(turn, serveClientSide(turn.facet, ds, store, listener))
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@ -0,0 +1,205 @@
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# SPDX-FileCopyrightText: ☭ Emery Hemingway
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# SPDX-License-Identifier: Unlicense
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import std/[asyncdispatch, asyncnet, sets, streams, strutils]
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from std/algorithm import sort
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import eris
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import preserves, syndicate
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from syndicate/protocols/dataspace import Observe
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import ./protocol, ./sockets
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type Value = Preserve[void]
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proc merge(items: varargs[Value]): Value =
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# TODO: just a hack, not a proper imlementation
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# https://preserves.dev/preserves.html#appendix-merging-values
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result = initDictionary()
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for e in items:
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for (key, val) in e.pairs:
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result[key] = val
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cannonicalize(result)
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type Observe = dataspace.Observe[Ref]
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proc recvError(daemon: Session): Future[string] {.async.} =
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discard #[typ]# await recvString(daemon)
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discard #[lvl]# await recvWord(daemon)
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discard #[name]# await recvString(daemon)
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let msg = #[msg]# await recvString(daemon)
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discard #[havePos]# await recvWord(daemon)
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let nrTraces = await recvWord(daemon)
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for i in 1..nrTraces:
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discard #[havPos]# await recvWord(daemon)
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discard #[msg]# await recvString(daemon)
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return msg
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proc recvFields(daemon: Session) {.async.} =
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let count = await recvWord(daemon)
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for i in 0..<count:
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let typ = await recvWord(daemon)
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case typ
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of 0: discard await recvWord(daemon)
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of 1: discard await recvString(daemon)
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else: raiseAssert "unknown field type " & $typ
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proc recvWork(daemon: Session) {.async.} =
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while true:
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let word = await recvWord(daemon)
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case word
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of STDERR_WRITE:
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discard await recvString(daemon)
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of STDERR_READ:
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await send(daemon, "")
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of STDERR_ERROR:
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let err = await recvError(daemon)
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raise newException(ProtocolError, "Nix daemon: " & err)
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of STDERR_NEXT:
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let msg = await recvString(daemon)
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stderr.writeLine("Nix daemon: ", msg)
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of STDERR_START_ACTIVITY:
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discard await recvWord(daemon) # id
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discard await recvWord(daemon) # level
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discard await recvWord(daemon) # type
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discard await recvString(daemon) # text
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await recvFields(daemon) # fields
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discard await recvWord(daemon) # parent
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of STDERR_STOP_ACTIVITY:
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discard await recvWord(daemon) # id
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of STDERR_RESULT:
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discard await recvWord(daemon) # id
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discard await recvWord(daemon) # type
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await recvFields(daemon) # fields
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of STDERR_LAST:
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break
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else:
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raise newException(ProtocolError, "unknown work verb " & $word)
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proc connectDaemon(daemon: Session; socketPath: string) {.async.} =
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await connectUnix(daemon.socket, socketPath)
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await send(daemon, WORKER_MAGIC_1)
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let daemonMagic = await recvWord(daemon)
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if daemonMagic != WORKER_MAGIC_2:
|
||||
raise newException(ProtocolError, "bad magic from daemon")
|
||||
let daemonVersion = await recvWord(daemon)
|
||||
daemon.version = min(Version daemonVersion, PROTOCOL_VERSION)
|
||||
await send(daemon, Word daemon.version)
|
||||
await send(daemon, 0) # CPU affinity
|
||||
await send(daemon, 0) # reserve space
|
||||
if daemon.version.minor >= 33:
|
||||
discard await recvString(daemon) # version
|
||||
if daemon.version.minor >= 35:
|
||||
discard await recvWord(daemon) # remoteTrustsUs
|
||||
await recvWork(daemon)
|
||||
|
||||
proc queryMissing(daemon: Session; targets: StringSeq): Future[Missing] {.async.} =
|
||||
var miss = Missing(targets: targets)
|
||||
await send(daemon, wopQueryMissing)
|
||||
await send(daemon, miss.targets)
|
||||
await recvWork(daemon)
|
||||
miss.willBuild = await recvStringSet(daemon)
|
||||
miss.willSubstitute = await recvStringSet(daemon)
|
||||
miss.unknown = await recvStringSet(daemon)
|
||||
miss.downloadSize = BiggestInt await recvWord(daemon)
|
||||
miss.narSize = BiggestInt await recvWord(daemon)
|
||||
return miss
|
||||
|
||||
proc queryPathInfo(daemon: Session; path: string): Future[LegacyPathAttrs] {.async.} =
|
||||
var info: LegacyPathAttrs
|
||||
await send(daemon, wopQueryPathInfo)
|
||||
await send(daemon, path)
|
||||
await recvWork(daemon)
|
||||
let valid = await recvWord(daemon)
|
||||
if valid != 0:
|
||||
info.deriver = await recvString(daemon)
|
||||
info.narHash = await recvString(daemon)
|
||||
info.references = await recvStringSeq(daemon)
|
||||
sort(info.references)
|
||||
info.registrationTime = BiggestInt await recvWord(daemon)
|
||||
info.narSize = BiggestInt await recvWord(daemon)
|
||||
info.ultimate = (await recvWord(daemon)) != 0
|
||||
info.sigs = await recvStringSet(daemon)
|
||||
info.ca = await recvString(daemon)
|
||||
return info
|
||||
|
||||
proc recvLegacyPathAttrs(daemon: Session): Future[AddToStoreAttrs] {.async.} =
|
||||
var info: AddToStoreAttrs
|
||||
info.deriver = await recvString(daemon)
|
||||
info.narHash = await recvString(daemon)
|
||||
info.references = await recvStringSeq(daemon)
|
||||
sort(info.references)
|
||||
info.registrationTime = BiggestInt await recvWord(daemon)
|
||||
info.narSize = BiggestInt await recvWord(daemon)
|
||||
assert daemon.version.minor >= 16
|
||||
info.ultimate = (await recvWord(daemon)) != 0
|
||||
info.sigs = await recvStringSet(daemon)
|
||||
info.ca = await recvString(daemon)
|
||||
return info
|
||||
|
||||
proc addToStore(daemon: Session; store: ErisStore; request: AddToStoreClientAttrs): Future[(string, AddToStoreAttrs)] {.async.} =
|
||||
let
|
||||
erisCap = parseCap(request.eris)
|
||||
stream = newErisStream(store, erisCap)
|
||||
await send(daemon, wopAddToStore)
|
||||
await send(daemon, request.name)
|
||||
await send(daemon, string request.`ca-method`)
|
||||
await send(daemon, request.references)
|
||||
await send(daemon, 0) # repair
|
||||
await recoverChunks(daemon, store, erisCap)
|
||||
await recvWork(daemon)
|
||||
let path = await recvString(daemon)
|
||||
var info = await recvLegacyPathAttrs(daemon)
|
||||
info.eris = request.eris
|
||||
info.`ca-method` = request.`ca-method`
|
||||
info.name = request.name
|
||||
info.references = request.references
|
||||
return (path, info)
|
||||
|
||||
proc callDaemon(turn: var Turn; path: string; action: proc (daemon: Session; turn: var Turn) {.gcsafe.}): Session =
|
||||
let
|
||||
daemon = newSession()
|
||||
fut = connectDaemon(daemon, path)
|
||||
addCallback(fut, turn) do (turn: var Turn):
|
||||
read(fut)
|
||||
action(daemon, turn)
|
||||
return daemon
|
||||
|
||||
proc bootDaemonSide*(turn: var Turn; ds: Ref; store: ErisStore; socketPath: string) =
|
||||
|
||||
during(turn, ds, ?Observe(pattern: !Missing) ?? {0: grab()}) do (a: Preserve[Ref]):
|
||||
# cannot use `grabLit` here because an array is a compound
|
||||
# TODO: unpack to a `Pattern`
|
||||
let daemon = callDaemon(turn, socketPath) do (daemon: Session; turn: var Turn):
|
||||
var targets: StringSeq
|
||||
doAssert targets.fromPreserve(unpackLiterals(a))
|
||||
# unpack <arr [<lit " …">]>
|
||||
let missFut = queryMissing(daemon, targets)
|
||||
addCallback(missFut, turn) do (turn: var Turn):
|
||||
close(daemon)
|
||||
var miss = read(missFut)
|
||||
discard publish(turn, ds, miss)
|
||||
do:
|
||||
close(daemon)
|
||||
|
||||
during(turn, ds, ?Observe(pattern: !PathInfo) ?? {0: grabLit()}) do (path: string):
|
||||
let daemon = callDaemon(turn, socketPath) do (daemon: Session; turn: var Turn):
|
||||
let infoFut = queryPathInfo(daemon, path)
|
||||
addCallback(infoFut, turn) do (turn: var Turn):
|
||||
close(daemon)
|
||||
var info = read(infoFut)
|
||||
discard publish(turn, ds, initRecord("path", path.toPreserve, info.toPreserve))
|
||||
do:
|
||||
close(daemon)
|
||||
|
||||
during(turn, ds, ?Observe(pattern: !PathInfo) ?? {1: grabDict()}) do (pat: Value):
|
||||
var daemon: Session
|
||||
var request: AddToStoreClientAttrs
|
||||
if request.fromPreserve(unpackLiterals pat):
|
||||
daemon = callDaemon(turn, socketPath) do (daemon: Session; turn: var Turn):
|
||||
let fut = addToStore(daemon, store, request)
|
||||
addCallback(fut, turn) do (turn: var Turn):
|
||||
close(daemon)
|
||||
var (path, info) = read(fut)
|
||||
discard publish(turn, ds, initRecord("path", path.toPreserve, info.toPreserve))
|
||||
do:
|
||||
close(daemon)
|
||||
|
|
@ -1,7 +0,0 @@
|
|||
# SPDX-FileCopyrightText: ☭ Emery Hemingway
|
||||
# SPDX-License-Identifier: Unlicense
|
||||
|
||||
{.passC: staticExec("pkg-config --cflags nix-main").}
|
||||
{.passL: staticExec("pkg-config --libs nix-main").}
|
||||
|
||||
proc initNix*() {.importcpp: "nix::initNix", header: "shared.hh".}
|
||||
|
|
@ -8,21 +8,32 @@ type
|
|||
`options`*: Table[Symbol, Preserve[void]]
|
||||
`result`*: Preserve[void]
|
||||
|
||||
AttrSet* = Table[Symbol, Preserve[void]]
|
||||
Realise* {.preservesRecord: "realise".} = object
|
||||
`drv`*: string
|
||||
`outputs`*: seq[string]
|
||||
`outputs`*: StringSeq
|
||||
|
||||
LegacyPathAttrs* {.preservesDictionary.} = object
|
||||
`ca`*: string
|
||||
`deriver`*: string
|
||||
`narHash`*: string
|
||||
`narSize`*: BiggestInt
|
||||
`references`*: StringSeq
|
||||
`registrationTime`*: BiggestInt
|
||||
`sigs`*: StringSet
|
||||
`ultimate`*: bool
|
||||
|
||||
Missing* {.preservesRecord: "missing".} = object
|
||||
`targets`*: seq[string]
|
||||
`willBuild`*: HashSet[string]
|
||||
`willSubstitute`*: HashSet[string]
|
||||
`unknown`*: HashSet[string]
|
||||
`targets`*: StringSeq
|
||||
`willBuild`*: StringSet
|
||||
`willSubstitute`*: StringSet
|
||||
`unknown`*: StringSet
|
||||
`downloadSize`*: BiggestInt
|
||||
`narSize`*: BiggestInt
|
||||
|
||||
Narinfo* {.preservesRecord: "narinfo".} = object
|
||||
`path`*: string
|
||||
`info`*: Dict
|
||||
`info`*: AttrSet
|
||||
|
||||
FieldKind* {.pure.} = enum
|
||||
`int`, `string`
|
||||
|
|
@ -35,18 +46,30 @@ type
|
|||
`string`*: string
|
||||
|
||||
|
||||
PathInfo* {.preservesRecord: "path-info".} = object
|
||||
`path`*: string
|
||||
`deriver`*: string
|
||||
`narHash`*: string
|
||||
`references`*: HashSet[string]
|
||||
`registrationTime`*: BiggestInt
|
||||
`narSize`*: BiggestInt
|
||||
`ultimate`*: bool
|
||||
`sigs`*: HashSet[string]
|
||||
StringSet* = HashSet[string]
|
||||
AddToStoreAttrs* {.preservesDictionary.} = object
|
||||
`ca`*: string
|
||||
`ca-method`*: Symbol
|
||||
`deriver`*: string
|
||||
`eris`*: seq[byte]
|
||||
`name`*: string
|
||||
`narHash`*: string
|
||||
`narSize`*: BiggestInt
|
||||
`references`*: StringSeq
|
||||
`registrationTime`*: BiggestInt
|
||||
`sigs`*: StringSet
|
||||
`ultimate`*: bool
|
||||
|
||||
AddToStoreClientAttrs* {.preservesDictionary.} = object
|
||||
`ca-method`*: Symbol
|
||||
`eris`*: seq[byte]
|
||||
`name`*: string
|
||||
`references`*: StringSeq
|
||||
|
||||
PathInfo* {.preservesRecord: "path".} = object
|
||||
`path`*: string
|
||||
`attrs`*: AttrSet
|
||||
|
||||
Dict* = Table[Symbol, Preserve[void]]
|
||||
Build* {.preservesRecord: "nix-build".} = object
|
||||
`input`*: string
|
||||
`output`*: Preserve[void]
|
||||
|
|
@ -60,13 +83,12 @@ type
|
|||
`fields`*: Fields
|
||||
`parent`*: BiggestInt
|
||||
|
||||
FieldString* = string
|
||||
Instantiate* {.preservesRecord: "instantiate".} = object
|
||||
`expr`*: string
|
||||
`options`*: Dict
|
||||
`options`*: AttrSet
|
||||
`result`*: Preserve[void]
|
||||
|
||||
FieldInt* = BiggestInt
|
||||
StringSeq* = seq[string]
|
||||
ActionStop* {.preservesRecord: "stop".} = object
|
||||
`id`*: BiggestInt
|
||||
|
||||
|
|
@ -75,24 +97,32 @@ type
|
|||
`type`*: BiggestInt
|
||||
`fields`*: Fields
|
||||
|
||||
proc `$`*(x: Eval | Realise | Missing | Narinfo | Field | PathInfo | Dict |
|
||||
proc `$`*(x: Eval | AttrSet | Realise | LegacyPathAttrs | Missing | Narinfo |
|
||||
Field |
|
||||
StringSet |
|
||||
AddToStoreAttrs |
|
||||
AddToStoreClientAttrs |
|
||||
PathInfo |
|
||||
Build |
|
||||
Fields |
|
||||
ActionStart |
|
||||
FieldString |
|
||||
Instantiate |
|
||||
FieldInt |
|
||||
StringSeq |
|
||||
ActionStop |
|
||||
ActionResult): string =
|
||||
`$`(toPreserve(x))
|
||||
|
||||
proc encode*(x: Eval | Realise | Missing | Narinfo | Field | PathInfo | Dict |
|
||||
proc encode*(x: Eval | AttrSet | Realise | LegacyPathAttrs | Missing | Narinfo |
|
||||
Field |
|
||||
StringSet |
|
||||
AddToStoreAttrs |
|
||||
AddToStoreClientAttrs |
|
||||
PathInfo |
|
||||
Build |
|
||||
Fields |
|
||||
ActionStart |
|
||||
FieldString |
|
||||
Instantiate |
|
||||
FieldInt |
|
||||
StringSeq |
|
||||
ActionStop |
|
||||
ActionResult): seq[byte] =
|
||||
encode(toPreserve(x))
|
||||
|
|
|
|||
|
|
@ -1,93 +1,96 @@
|
|||
# SPDX-FileCopyrightText: ☭ Emery Hemingway
|
||||
# SPDX-License-Identifier: Unlicense
|
||||
|
||||
import std/[algorithm, asyncdispatch, asyncnet, os, sets, strtabs, strutils]
|
||||
from std/nativesockets import AF_INET, AF_UNIX, SOCK_STREAM, Protocol
|
||||
## Common module for communicating with Nix clients and daemons.
|
||||
|
||||
import std/[asyncdispatch, asyncnet, sets, strtabs, strutils, tables]
|
||||
from std/nativesockets import AF_UNIX, SOCK_STREAM, Protocol
|
||||
|
||||
import eris
|
||||
import preserves, syndicate
|
||||
from syndicate/protocols/dataspace import Observe
|
||||
|
||||
import ./protocol
|
||||
|
||||
{.pragma: workerProtocol, importc, header: "worker-protocol.hh".}
|
||||
|
||||
type Word = uint64
|
||||
proc `$`(w: Word): string = toHex(w)
|
||||
type Word* = uint64
|
||||
|
||||
proc `[]=`*[T](attrs: var AttrSet; key: string; val: T) =
|
||||
attrs[Symbol key] = val.toPreserve
|
||||
|
||||
const
|
||||
WORKER_MAGIC_1 = 0x6E697863
|
||||
WORKER_MAGIC_2 = 0x6478696F
|
||||
PROTOCOL_VERSION = 0x100 or 35
|
||||
WORKER_MAGIC_1* = 0x6E697863
|
||||
WORKER_MAGIC_2* = 0x6478696F
|
||||
PROTOCOL_VERSION* = 0x100 or 35
|
||||
|
||||
STDERR_NEXT = 0x6F6C6d67
|
||||
STDERR_READ = 0x64617461
|
||||
STDERR_WRITE = 0x64617416
|
||||
STDERR_LAST = 0x616C7473
|
||||
STDERR_ERROR = 0x63787470
|
||||
STDERR_START_ACTIVITY = 0x53545254
|
||||
STDERR_STOP_ACTIVITY = 0x53544F50
|
||||
STDERR_RESULT = 0x52534C54
|
||||
STDERR_NEXT* = 0x6F6C6d67
|
||||
STDERR_READ* = 0x64617461
|
||||
STDERR_WRITE* = 0x64617416
|
||||
STDERR_LAST* = 0x616C7473
|
||||
STDERR_ERROR* = 0x63787470
|
||||
STDERR_START_ACTIVITY* = 0x53545254
|
||||
STDERR_STOP_ACTIVITY* = 0x53544F50
|
||||
STDERR_RESULT* = 0x52534C54
|
||||
|
||||
wopIsValidPath = 1
|
||||
wopHasSubstitutes = 3
|
||||
wopQueryReferrers = 6
|
||||
wopAddToStore = 7
|
||||
wopBuildPaths = 9
|
||||
wopEnsurePath = 10
|
||||
wopAddTempRoot = 11
|
||||
wopAddIndirectRoot = 12
|
||||
wopSyncWithGC = 13
|
||||
wopFindRoots = 14
|
||||
wopSetOptions = 19
|
||||
wopCollectGarbage = 20
|
||||
wopQuerySubstitutablePathInfo = 21
|
||||
wopQueryAllValidPaths = 23
|
||||
wopQueryFailedPaths = 24
|
||||
wopClearFailedPaths = 25
|
||||
wopQueryPathInfo = 26
|
||||
wopQueryPathFromHashPart = 29
|
||||
wopQuerySubstitutablePathInfos = 30
|
||||
wopQueryValidPaths = 31
|
||||
wopQuerySubstitutablePaths = 32
|
||||
wopQueryValidDerivers = 33
|
||||
wopOptimiseStore = 34
|
||||
wopVerifyStore = 35
|
||||
wopBuildDerivation = 36
|
||||
wopAddSignatures = 37
|
||||
wopNarFromPath = 38
|
||||
wopAddToStoreNar = 39
|
||||
wopQueryMissing = 40
|
||||
wopQueryDerivationOutputMap = 41
|
||||
wopRegisterDrvOutput = 42
|
||||
wopQueryRealisation = 43
|
||||
wopAddMultipleToStore = 44
|
||||
wopAddBuildLog = 45
|
||||
wopBuildPathsWithResults = 46
|
||||
wopIsValidPath* = 1
|
||||
wopHasSubstitutes* = 3
|
||||
wopQueryReferrers* = 6
|
||||
wopAddToStore* = 7
|
||||
wopBuildPaths* = 9
|
||||
wopEnsurePath* = 10
|
||||
wopAddTempRoot* = 11
|
||||
wopAddIndirectRoot* = 12
|
||||
wopSyncWithGC* = 13
|
||||
wopFindRoots* = 14
|
||||
wopSetOptions* = 19
|
||||
wopCollectGarbage* = 20
|
||||
wopQuerySubstitutablePathInfo* = 21
|
||||
wopQueryAllValidPaths* = 23
|
||||
wopQueryFailedPaths* = 24
|
||||
wopClearFailedPaths* = 25
|
||||
wopQueryPathInfo* = 26
|
||||
wopQueryPathFromHashPart* = 29
|
||||
wopQuerySubstitutablePathInfos* = 30
|
||||
wopQueryValidPaths* = 31
|
||||
wopQuerySubstitutablePaths* = 32
|
||||
wopQueryValidDerivers* = 33
|
||||
wopOptimiseStore* = 34
|
||||
wopVerifyStore* = 35
|
||||
wopBuildDerivation* = 36
|
||||
wopAddSignatures* = 37
|
||||
wopNarFromPath* = 38
|
||||
wopAddToStoreNar* = 39
|
||||
wopQueryMissing* = 40
|
||||
wopQueryDerivationOutputMap* = 41
|
||||
wopRegisterDrvOutput* = 42
|
||||
wopQueryRealisation* = 43
|
||||
wopAddMultipleToStore* = 44
|
||||
wopAddBuildLog* = 45
|
||||
wopBuildPathsWithResults* = 46
|
||||
|
||||
type
|
||||
ProtocolError = object of IOError
|
||||
Version = uint16
|
||||
StringSeq = seq[string]
|
||||
StringSet = HashSet[string]
|
||||
Session = ref object
|
||||
socket: AsyncSocket
|
||||
buffer: seq[Word]
|
||||
version: Version
|
||||
Observe = dataspace.Observe[Ref]
|
||||
ProtocolError* = object of IOError
|
||||
Version* = uint16
|
||||
|
||||
func major(version: Version): uint16 = version and 0xff00
|
||||
func minor(version: Version): uint16 = version and 0x00ff
|
||||
Session* = ref object
|
||||
socket*: AsyncSocket
|
||||
buffer*: seq[Word]
|
||||
version*: Version
|
||||
|
||||
proc close(session: Session) =
|
||||
func major*(version: Version): uint16 = version and 0xff00
|
||||
func minor*(version: Version): uint16 = version and 0x00ff
|
||||
|
||||
proc close*(session: Session) =
|
||||
close(session.socket)
|
||||
reset(session.buffer)
|
||||
|
||||
proc send(session: Session; words: varargs[Word]): Future[void] =
|
||||
proc send*(session: Session; words: varargs[Word]): Future[void] =
|
||||
if session.buffer.len < words.len:
|
||||
session.buffer.setLen(words.len)
|
||||
for i, word in words: session.buffer[i] = word
|
||||
send(session.socket, addr session.buffer[0], words.len shl 3)
|
||||
|
||||
proc send(session: Session; s: string): Future[void] =
|
||||
proc send*(session: Session; s: string): Future[void] =
|
||||
let wordCount = 1 + ((s.len + 7) shr 3)
|
||||
if session.buffer.len < wordCount: setLen(session.buffer, wordCount)
|
||||
session.buffer[0] = Word s.len
|
||||
|
|
@ -96,7 +99,7 @@ proc send(session: Session; s: string): Future[void] =
|
|||
copyMem(addr session.buffer[1], unsafeAddr s[0], s.len)
|
||||
send(session.socket, addr session.buffer[0], wordCount shl 3)
|
||||
|
||||
proc send(session: Session; ss: StringSeq|StringSet): Future[void] =
|
||||
proc send*(session: Session; ss: StringSeq|StringSet): Future[void] =
|
||||
## Send a set of strings. The set is sent as a contiguous buffer.
|
||||
session.buffer[0] = Word ss.len
|
||||
var off = 1
|
||||
|
|
@ -113,23 +116,23 @@ proc send(session: Session; ss: StringSeq|StringSet): Future[void] =
|
|||
inc(off, stringWordLen)
|
||||
send(session.socket, addr session.buffer[0], off shl 3)
|
||||
|
||||
proc recvWord(sock: AsyncSocket): Future[Word] {.async.} =
|
||||
proc recvWord*(sock: AsyncSocket): Future[Word] {.async.} =
|
||||
var w: Word
|
||||
let n = await recvInto(sock, addr w, sizeof(Word))
|
||||
if n != sizeof(Word): raise newException(ProtocolError, "short read")
|
||||
return w
|
||||
|
||||
proc recvWord(session: Session): Future[Word] =
|
||||
proc recvWord*(session: Session): Future[Word] =
|
||||
recvWord(session.socket)
|
||||
|
||||
proc discardWords(session: Session; n: int): Future[void] {.async.} =
|
||||
proc discardWords*(session: Session; n: int): Future[void] {.async.} =
|
||||
if session.buffer.len < n: setLen(session.buffer, n)
|
||||
let byteCount = n shl 3
|
||||
let n = await recvInto(session.socket, addr session.buffer[0], byteCount)
|
||||
if n != byteCount:
|
||||
raise newException(ProtocolError, "short read")
|
||||
|
||||
proc recvString(socket: AsyncSocket): Future[string] {.async.} =
|
||||
proc recvString*(socket: AsyncSocket): Future[string] {.async.} =
|
||||
let stringLen = int (await recvWord(socket))
|
||||
if stringLen > 0:
|
||||
var s = newString((stringLen + 7) and (not 7))
|
||||
|
|
@ -140,310 +143,61 @@ proc recvString(socket: AsyncSocket): Future[string] {.async.} =
|
|||
return s
|
||||
return ""
|
||||
|
||||
proc recvString(session: Session): Future[string] =
|
||||
proc recvString*(session: Session): Future[string] =
|
||||
recvString(session.socket)
|
||||
|
||||
proc recvStringSeq(session: Session): Future[StringSeq] {.async.} =
|
||||
proc recvStringSeq*(session: Session): Future[StringSeq] {.async.} =
|
||||
let count = int(await recvWord(session.socket))
|
||||
var strings = newSeq[string](count)
|
||||
for i in 0..<count: strings[i] = await recvString(session)
|
||||
return strings
|
||||
|
||||
proc recvStringSet(session: Session): Future[StringSet] {.async.} =
|
||||
proc recvStringSet*(session: Session): Future[StringSet] {.async.} =
|
||||
let count = int(await recvWord(session.socket))
|
||||
var strings = initHashSet[string](count)
|
||||
for i in 0..<count: incl(strings, await recvString(session))
|
||||
return strings
|
||||
|
||||
proc recvError(session: Session) {.async.} =
|
||||
discard #[typ]# await recvString(session)
|
||||
discard #[lvl]# await recvWord(session)
|
||||
discard #[name]# await recvString(session)
|
||||
discard #[msg]# await recvString(session)
|
||||
discard #[havePos]# await recvWord(session)
|
||||
let nrTraces = await recvWord(session)
|
||||
for i in 1..nrTraces:
|
||||
discard #[havPos]# await recvWord(session)
|
||||
discard #[msg]# await recvString(session)
|
||||
|
||||
proc recvFields(session: Session) {.async.} =
|
||||
let count = await recvWord(session)
|
||||
for i in 0..<count:
|
||||
let typ = await recvWord(session)
|
||||
case typ
|
||||
of 0: discard await recvWord(session)
|
||||
of 1: discard await recvString(session)
|
||||
else: raiseAssert "unknown field type " & $typ
|
||||
|
||||
proc recvWork(session: Session) {.async.} =
|
||||
while true:
|
||||
let word = await recvWord(session)
|
||||
case word
|
||||
of STDERR_WRITE:
|
||||
discard await recvString(session)
|
||||
of STDERR_READ:
|
||||
await send(session, "")
|
||||
of STDERR_ERROR:
|
||||
await recvError(session)
|
||||
of STDERR_NEXT:
|
||||
discard await recvString(session)
|
||||
of STDERR_START_ACTIVITY:
|
||||
discard await recvWord(session) # id
|
||||
discard await recvWord(session) # level
|
||||
discard await recvWord(session) # type
|
||||
discard await recvString(session) # text
|
||||
await recvFields(session) # fields
|
||||
discard await recvWord(session) # parent
|
||||
of STDERR_STOP_ACTIVITY:
|
||||
discard await recvWord(session) # id
|
||||
of STDERR_RESULT:
|
||||
var act: ActionResult
|
||||
discard await recvWord(session) # id
|
||||
discard await recvWord(session) # type
|
||||
await recvFields(session) # fields
|
||||
of STDERR_LAST:
|
||||
break
|
||||
else:
|
||||
raise newException(ProtocolError, "unknown work verb " & $word)
|
||||
|
||||
proc daemonSocketPath: string =
|
||||
getEnv(
|
||||
"NIX_DAEMON_SOCKET_PATH",
|
||||
"/nix/var/nix/daemon-socket/socket")
|
||||
|
||||
proc newSession(socket: AsyncSocket): Session =
|
||||
Session(socket: socket, buffer: newSeq[Word](512))
|
||||
|
||||
proc newSession(): Session =
|
||||
newSession(newAsyncSocket(
|
||||
domain = AF_UNIX,
|
||||
sockType = SOCK_STREAM,
|
||||
protocol = cast[Protocol](0),
|
||||
buffered = false))
|
||||
|
||||
proc send(session: Session; miss: Missing) {.async.} =
|
||||
await send(session, STDERR_LAST)
|
||||
await send(session, miss.willBuild)
|
||||
await send(session, miss.willSubstitute)
|
||||
await send(session, miss.unknown)
|
||||
await send(session, Word miss.downloadSize)
|
||||
await send(session, Word miss.narSize)
|
||||
|
||||
proc send(session: Session; info: PathInfo) {.async.} =
|
||||
await send(session, STDERR_LAST)
|
||||
await send(session, 1)
|
||||
if info.path != "":
|
||||
await send(session, info.path)
|
||||
await send(session, info.deriver)
|
||||
await send(session, info.narHash)
|
||||
await send(session, info.references)
|
||||
await send(session, Word info.registrationTime)
|
||||
await send(session, Word info.narSize)
|
||||
await send(session, Word info.ultimate)
|
||||
await send(session, info.sigs)
|
||||
await send(session, info.ca)
|
||||
|
||||
proc serveClient(facet: Facet; ds: Ref; session: Session) {.async.} =
|
||||
block:
|
||||
let clientMagic = await recvWord(session)
|
||||
if clientMagic != WORKER_MAGIC_1:
|
||||
raise newException(ProtocolError, "invalid protocol magic")
|
||||
await send(session, WORKER_MAGIC_2, PROTOCOL_VERSION)
|
||||
let clientVersion = Version(await recvWord(session))
|
||||
if clientVersion < 0x1_21:
|
||||
raise newException(ProtocolError, "obsolete protocol version")
|
||||
assert clientVersion.minor >= 14
|
||||
discard await(recvWord(session))
|
||||
# obsolete CPU affinity
|
||||
assert clientVersion.minor >= 11
|
||||
discard await(recvWord(session))
|
||||
# obsolete reserveSpace
|
||||
assert clientVersion.minor >= 33
|
||||
await send(session, "0.0.0")
|
||||
await send(session, STDERR_LAST)
|
||||
while not session.socket.isClosed:
|
||||
let wop = await recvWord(session.socket)
|
||||
case wop
|
||||
|
||||
of wopQueryPathInfo:
|
||||
let
|
||||
path = await recvString(session)
|
||||
pat = inject(?PathInfo, { 0: ?path })
|
||||
await send(session, STDERR_NEXT)
|
||||
await send(session, $pat)
|
||||
run(facet) do (turn: var Turn):
|
||||
onPublish(turn, ds, pat) do (
|
||||
deriver: string,
|
||||
narHash: string,
|
||||
references: StringSet,
|
||||
registrationTime: BiggestInt,
|
||||
narSize: BiggestInt,
|
||||
ultimate: bool,
|
||||
sigs: StringSet,
|
||||
ca: string
|
||||
):
|
||||
var info = PathInfo(
|
||||
deriver: deriver,
|
||||
narHash: narHash,
|
||||
references: references,
|
||||
registrationTime: registrationTime,
|
||||
narSize: narSize,
|
||||
ultimate: ultimate,
|
||||
sigs: sigs,
|
||||
ca: ca,
|
||||
)
|
||||
asyncCheck(turn, send(session, info))
|
||||
|
||||
of wopQueryMissing:
|
||||
var targets = toPreserve(await recvStringSeq(session))
|
||||
sort(targets.sequence)
|
||||
# would prefer to use a set but that doesn't translate into a pattern
|
||||
let pat = inject(?Missing, { 0: ?targets })
|
||||
# TODO send the pattern to the client as a log line
|
||||
await send(session, STDERR_NEXT)
|
||||
await send(session, $pat)
|
||||
run(facet) do (turn: var Turn):
|
||||
onPublish(turn, ds, pat) do (
|
||||
willBuild: StringSet,
|
||||
willSubstitute: StringSet,
|
||||
unknown: StringSet,
|
||||
downloadSize: BiggestInt,
|
||||
narSize: BiggestInt
|
||||
):
|
||||
let miss = Missing(
|
||||
willBuild: willBuild,
|
||||
willSubstitute: willSubstitute,
|
||||
unknown: unknown,
|
||||
downloadSize: downloadSize,
|
||||
narSize: narSize,
|
||||
)
|
||||
asyncCheck(turn, send(session, miss))
|
||||
|
||||
of wopSetOptions:
|
||||
await discardWords(session, 12)
|
||||
# 01 keepFailed
|
||||
# 02 keepGoing
|
||||
# 03 tryFallback
|
||||
# 04 verbosity
|
||||
# 05 maxBuildJobs
|
||||
# 06 maxSilentTime
|
||||
# 07 useBuildHook
|
||||
# 08 verboseBuild
|
||||
# 09 logType
|
||||
# 10 printBuildTrace
|
||||
# 11 buildCores
|
||||
# 12 useSubstitutes
|
||||
let overridePairCount = await recvWord(session)
|
||||
for _ in 1..overridePairCount:
|
||||
discard await (recvString(session))
|
||||
discard await (recvString(session))
|
||||
await send(session, STDERR_LAST)
|
||||
# all options from the client are ingored
|
||||
|
||||
else:
|
||||
let msg = "unhandled worker op " & $wop.int
|
||||
await send(session, STDERR_NEXT)
|
||||
await send(session, msg)
|
||||
await send(session, STDERR_LAST)
|
||||
close(session.socket)
|
||||
|
||||
proc serveClientSide*(facet: Facet; ds: Ref; listener: AsyncSocket) {.async.} =
|
||||
while not listener.isClosed:
|
||||
let
|
||||
client = await accept(listener)
|
||||
fut = serveClient(facet, ds, newSession(client))
|
||||
addCallback(fut) do ():
|
||||
if not client.isClosed:
|
||||
close(client)
|
||||
|
||||
proc bootClientSide*(facet: Facet; ds: Ref; socketPath: string) =
|
||||
let listener = newAsyncSocket(
|
||||
proc newUnixSocket*(): AsyncSocket =
|
||||
newAsyncSocket(
|
||||
domain = AF_UNIX,
|
||||
sockType = SOCK_STREAM,
|
||||
protocol = cast[Protocol](0),
|
||||
buffered = false)
|
||||
onStop(facet) do (turn: var Turn):
|
||||
close(listener)
|
||||
removeFile(socketPath)
|
||||
removeFile(socketPath)
|
||||
bindUnix(listener, socketPath)
|
||||
listen(listener)
|
||||
asyncCheck(facet, serveClientSide(facet, ds, listener))
|
||||
buffered = false,
|
||||
)
|
||||
|
||||
proc connectDaemon(session: Session; socketPath: string) {.async.} =
|
||||
await connectUnix(session.socket, socketPath)
|
||||
await send(session, WORKER_MAGIC_1)
|
||||
let daemonMagic = await recvWord(session)
|
||||
if daemonMagic != WORKER_MAGIC_2:
|
||||
raise newException(ProtocolError, "bad magic from daemon")
|
||||
let daemonVersion = await recvWord(session)
|
||||
session.version = min(Version daemonVersion, PROTOCOL_VERSION)
|
||||
await send(session, Word session.version)
|
||||
await send(session, 0) # CPU affinity
|
||||
await send(session, 0) # reserve space
|
||||
if session.version.minor >= 33:
|
||||
discard await recvString(session) # version
|
||||
if session.version.minor >= 35:
|
||||
discard await recvWord(session) # remoteTrustsUs
|
||||
await recvWork(session)
|
||||
proc newSession*(socket: AsyncSocket): Session =
|
||||
Session(socket: socket, buffer: newSeq[Word](512))
|
||||
|
||||
proc queryMissing(session: Session; targets: StringSeq): Future[Missing] {.async.} =
|
||||
var miss = Missing(targets: targets)
|
||||
await send(session, wopQueryMissing)
|
||||
await send(session, miss.targets)
|
||||
await recvWork(session)
|
||||
miss.willBuild = await recvStringSet(session)
|
||||
miss.willSubstitute = await recvStringSet(session)
|
||||
miss.unknown = await recvStringSet(session)
|
||||
miss.downloadSize = BiggestInt await recvWord(session)
|
||||
miss.narSize = BiggestInt await recvWord(session)
|
||||
return miss
|
||||
proc newSession*(): Session =
|
||||
newUnixSocket().newSession()
|
||||
|
||||
proc queryPathInfo(session: Session; path: string): Future[PathInfo] {.async.} =
|
||||
var info = PathInfo(path: path)
|
||||
await send(session, wopQueryPathInfo)
|
||||
await send(session, info.path)
|
||||
await recvWork(session)
|
||||
let valid = await recvWord(session)
|
||||
if valid != 0:
|
||||
info.deriver = await recvString(session)
|
||||
info.narHash = await recvString(session)
|
||||
info.references = await recvStringSet(session)
|
||||
info.registrationTime = BiggestInt await recvWord(session)
|
||||
info.narSize = BiggestInt await recvWord(session)
|
||||
info.ultimate = (await recvWord(session)) != 0
|
||||
info.sigs = await recvStringSet(session)
|
||||
info.ca = await recvString(session)
|
||||
return info
|
||||
proc ingestChunks*(session: Session; store: ErisStore): Future[ErisCap] {.async.} =
|
||||
var ingest: ErisIngest
|
||||
while true:
|
||||
let chunkLen = int await recvWord(session)
|
||||
if ingest.isNil:
|
||||
ingest = newErisIngest(
|
||||
store, recommendedChunkSize(chunkLen), convergentMode)
|
||||
if chunkLen == 0:
|
||||
break
|
||||
else:
|
||||
let wordLen = (chunkLen + 7) shr 3
|
||||
if session.buffer.len < wordLen: setLen(session.buffer, wordLen)
|
||||
let recvLen = await recvInto(session.socket, addr session.buffer[0], chunkLen)
|
||||
# each chunk must be received contiguously
|
||||
if recvLen != chunkLen:
|
||||
raise newException(ProtocolError, "invalid chunk read")
|
||||
await append(ingest, addr session.buffer[0], chunkLen)
|
||||
var cap = await cap(ingest)
|
||||
return cap
|
||||
|
||||
proc bootDaemonSide*(turn: var Turn; ds: Ref; socketPath: string) =
|
||||
|
||||
during(turn, ds, ?Observe(pattern: !Missing) ?? {0: grab()}) do (a: Preserve[Ref]):
|
||||
# cannot use `grabLit` here because an array is a compound
|
||||
let
|
||||
session = newSession()
|
||||
fut = connectDaemon(session, socketPath)
|
||||
addCallback(fut, turn) do (turn: var Turn):
|
||||
read(fut)
|
||||
var targets: StringSeq
|
||||
doAssert targets.fromPreserve(unpackLiterals(a))
|
||||
# unpack <arr [<lit " …">]>
|
||||
let missFut = queryMissing(session, targets)
|
||||
addCallback(missFut, turn) do (turn: var Turn):
|
||||
var miss = read(missFut)
|
||||
discard publish(turn, ds, miss)
|
||||
do:
|
||||
close(session)
|
||||
|
||||
during(turn, ds, ?Observe(pattern: !PathInfo) ?? {0: grabLit()}) do (path: string):
|
||||
let
|
||||
session = newSession()
|
||||
fut = connectDaemon(session, socketPath)
|
||||
addCallback(fut, turn) do (turn: var Turn):
|
||||
read(fut)
|
||||
let infoFut = queryPathInfo(session, path)
|
||||
addCallback(infoFut, turn) do (turn: var Turn):
|
||||
var info = read(infoFut)
|
||||
discard publish(turn, ds, info)
|
||||
do:
|
||||
close(session)
|
||||
proc recoverChunks*(session: Session; store: ErisStore; cap: ErisCap) {.async.} =
|
||||
let stream = newErisStream(store, cap)
|
||||
session.buffer.setLen(succ(cap.chunkSize.int shr 3))
|
||||
while true:
|
||||
let n = await stream.readBuffer(addr session.buffer[1], cap.chunkSize.int)
|
||||
session.buffer[0] = Word n
|
||||
await send(session.socket, addr session.buffer[0], 8+n)
|
||||
if n == 0: break
|
||||
close(stream)
|
||||
|
|
|
|||
Loading…
Reference in New Issue