Eg1

package com.glassthought.sandbox

import gt.sandbox.util.output.Out
import kotlinx.coroutines.*

val out = Out.standard()

fun main() = runBlocking {
  // Start two async operations in parallel
  val deferredOne = async { fetchDataOne() }
  val deferredTwo = async { fetchDataTwo() }

  // Wait for results
  val resultOne = deferredOne.await()
  val resultTwo = deferredTwo.await()

  out.println("Combined result: ${resultOne + resultTwo}")
}

// Simulated data fetch function
suspend fun fetchDataOne(): Int {
  delay(1000)  // Simulate a network or heavy computation delay
  out.println("Fetched data one")
  return 10
}

// Another simulated data fetch function
suspend fun fetchDataTwo(): Int {
  delay(1500)  // Simulate a network or heavy computation delay
  out.println("Fetched data two")
  return 20
}

Command to reproduce:

gt.sandbox.checkout.commit ffbd344f68e987e4c229 \
&& cd "${GT_SANDBOX_REPO}" \
&& cmd.run.announce "./gradlew run"

Recorded output of command:

> Task :app:checkKotlinGradlePluginConfigurationErrors SKIPPED
> Task :app:compileKotlin UP-TO-DATE
> Task :app:compileJava NO-SOURCE
> Task :app:processResources NO-SOURCE
> Task :app:classes UP-TO-DATE

> Task :app:run
[2024-11-13T04:21:47.368979Z][elapsed-since-start: 1061ms][tname:main/tid:1] Fetched data one
[2024-11-13T04:21:47.868301Z][elapsed-since-start: 1533ms][tname:main/tid:1] Fetched data two
[2024-11-13T04:21:47.871792Z][elapsed-since-start: 1536ms][tname:main/tid:1] Combined result: 30

BUILD SUCCESSFUL in 2s
2 actionable tasks: 1 executed, 1 up-to-date

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Backlinks

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