add Synchronously

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 * `Versions`:
     * `Ktor`: `1.4.2` -> `1.4.3`
+* `Coroutines`:
+    * `launchSynchronously` has been added in JVM
 * `Repo`
     * `Common`
         * In repos different usages of `BroadcastChannel`s has been replaced with `MutableSharedFlow`

coroutines/src/jvmMain/kotlin/dev/inmo/micro_utils/coroutines/LaunchSynchronously.kt

@@ -0,0 +1,28 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.*
+
+fun <T> launchSynchronously(scope: CoroutineScope = CoroutineScope(Dispatchers.Default), block: suspend CoroutineScope.() -> T): T {
+    var throwable: Throwable? = null
+    var result: T? = null
+    val objectToSynchronize = java.lang.Object()
+    val launchCallback = {
+        scope.launch {
+            safely(
+                {
+                    throwable = it
+                }
+            ) {
+                result = block()
+            }
+            synchronized(objectToSynchronize) {
+                objectToSynchronize.notifyAll()
+            }
+        }
+    }
+    synchronized(objectToSynchronize) {
+        launchCallback()
+        objectToSynchronize.wait()
+    }
+    throw throwable ?: return result!!
+}

coroutines/src/jvmTest/kotlin/dev/inmo/micro_utils/coroutines/LaunchSynchronouslyTest.kt

@@ -0,0 +1,13 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class LaunchSynchronouslyTest {
+    @Test
+    fun testRunInCoroutine() {
+        (0 .. 10000).forEach {
+            assertEquals(it, launchSynchronously { it })
+        }
+    }
+}