mirror of https://github.com/waku-org/nwaku.git
145 lines
3.7 KiB
Nim
145 lines
3.7 KiB
Nim
when (NimMajor, NimMinor) < (1, 4):
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{.push raises: [Defect].}
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else:
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{.push raises: [].}
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import
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std/[options, strutils, os],
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stew/shims/net as stewNet,
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chronicles,
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chronos,
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metrics,
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libbacktrace,
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system/ansi_c,
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libp2p/crypto/crypto
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import
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../../waku/common/logging,
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./external_config,
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./app
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logScope:
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topics = "wakunode main"
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{.pop.} # @TODO confutils.nim(775, 17) Error: can raise an unlisted exception: ref IOError
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when isMainModule:
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## Node setup happens in 6 phases:
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## 1. Set up storage
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## 2. Initialize node
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## 3. Mount and initialize configured protocols
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## 4. Start node and mounted protocols
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## 5. Start monitoring tools and external interfaces
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## 6. Setup graceful shutdown hooks
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const versionString = "version / git commit hash: " & app.git_version
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let rng = crypto.newRng()
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let confRes = WakuNodeConf.load(version=versionString)
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if confRes.isErr():
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error "failure while loading the configuration", error=confRes.error
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quit(QuitFailure)
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let conf = confRes.get()
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## Logging setup
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# Adhere to NO_COLOR initiative: https://no-color.org/
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let color = try: not parseBool(os.getEnv("NO_COLOR", "false"))
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except CatchableError: true
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logging.setupLogLevel(conf.logLevel)
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logging.setupLogFormat(conf.logFormat, color)
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var wakunode2 = App.init(rng, conf)
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##############
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# Node setup #
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##############
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debug "1/7 Setting up storage"
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## Peer persistence
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let res1 = wakunode2.setupPeerPersistence()
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if res1.isErr():
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error "1/7 Setting up storage failed", error=res1.error
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quit(QuitFailure)
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debug "2/7 Retrieve dynamic bootstrap nodes"
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let res3 = wakunode2.setupDyamicBootstrapNodes()
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if res3.isErr():
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error "2/7 Retrieving dynamic bootstrap nodes failed", error=res3.error
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quit(QuitFailure)
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debug "3/7 Initializing node"
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let res4 = wakunode2.setupWakuApp()
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if res4.isErr():
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error "3/7 Initializing node failed", error=res4.error
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quit(QuitFailure)
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debug "4/7 Mounting protocols"
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let res5 = waitFor wakunode2.setupAndMountProtocols()
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if res5.isErr():
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error "4/7 Mounting protocols failed", error=res5.error
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quit(QuitFailure)
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debug "5/7 Starting node and mounted protocols"
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let res6 = wakunode2.startApp()
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if res6.isErr():
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error "5/7 Starting node and protocols failed", error=res6.error
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quit(QuitFailure)
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debug "6/7 Starting monitoring and external interfaces"
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let res7 = wakunode2.setupMonitoringAndExternalInterfaces()
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if res7.isErr():
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error "6/7 Starting monitoring and external interfaces failed", error=res7.error
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quit(QuitFailure)
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debug "7/7 Setting up shutdown hooks"
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## Setup shutdown hooks for this process.
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## Stop node gracefully on shutdown.
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proc asyncStopper(node: App) {.async.} =
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await node.stop()
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quit(QuitSuccess)
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# Handle Ctrl-C SIGINT
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proc handleCtrlC() {.noconv.} =
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when defined(windows):
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# workaround for https://github.com/nim-lang/Nim/issues/4057
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setupForeignThreadGc()
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notice "Shutting down after receiving SIGINT"
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asyncSpawn asyncStopper(wakunode2)
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setControlCHook(handleCtrlC)
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# Handle SIGTERM
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when defined(posix):
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proc handleSigterm(signal: cint) {.noconv.} =
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notice "Shutting down after receiving SIGTERM"
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asyncSpawn asyncStopper(wakunode2)
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c_signal(ansi_c.SIGTERM, handleSigterm)
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# Handle SIGSEGV
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when defined(posix):
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proc handleSigsegv(signal: cint) {.noconv.} =
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# Require --debugger:native
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fatal "Shutting down after receiving SIGSEGV", stacktrace=getBacktrace()
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# Not available in -d:release mode
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writeStackTrace()
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waitFor wakunode2.stop()
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quit(QuitFailure)
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c_signal(ansi_c.SIGSEGV, handleSigsegv)
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info "Node setup complete"
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runForever()
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