Retry

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 * `Versions`:
   * `SQLite`: `3.49.0.0` -> `3.49.1.0`
+* `Common`:
+  * Add `retryOnFailure` utility for simple retries code writing
 * `Repos`:
   * `Cache`:
     * Fix of `FullKeyValueCacheRepo` fields usage

common/src/commonMain/kotlin/dev/inmo/micro_utils/common/Retry.kt

@@ -0,0 +1,26 @@
+package dev.inmo.micro_utils.common
+
+/**
+ * Will try to execute [action] and, if any exception will happen, execution will be retried.
+ * This process will happen at most [count] times. There is no any limits on [count] value, but [action] will run at
+ * least once and [retryOnFailure] will return its result if it is successful
+ */
+inline fun <T> retryOnFailure(count: Int, action: () -> T): T {
+    var triesCount = 0
+    while (true) {
+        val result = runCatching {
+            action()
+        }.onFailure {
+            triesCount++
+
+            if (triesCount >= count) {
+                throw it
+            } else {
+                null
+            }
+        }
+
+        if (result.isSuccess) return result.getOrThrow()
+    }
+    error("Unreachable code: retry must throw latest exception if error happen or success value if not")
+}