From 86998438026342451685c9e310b216431f080496 Mon Sep 17 00:00:00 2001
From: Didymus <didymusne@gmail.com>
Date: Sun, 14 Apr 2024 18:13:02 +0800
Subject: [PATCH] [ark-event] fix: copy events each tick to process events
 available per tick

---
 ArkKit/ark-event-kit/ArkEventManager.swift | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/ArkKit/ark-event-kit/ArkEventManager.swift b/ArkKit/ark-event-kit/ArkEventManager.swift
index ea1bd2f..635331e 100644
--- a/ArkKit/ark-event-kit/ArkEventManager.swift
+++ b/ArkKit/ark-event-kit/ArkEventManager.swift
@@ -39,10 +39,14 @@ class ArkEventManager: ArkEventContext {
     }
 
     func processEvents() {
-        while !eventQueue.isEmpty {
-            guard let datedEvent = eventQueue.dequeue() else {
+        // copy eventQueue so that events emited during processing are processed at the next tick
+        var eventsFromQueue = eventQueue
+        while !eventsFromQueue.isEmpty {
+            guard let datedEvent = eventsFromQueue.dequeue() else {
                 fatalError("[ArkEventManager.processEvents()] dequeue failed: Expected event, found nil.")
             }
+            // dequeue from copy and actual eventQueue so that they are in sync
+            _ = eventQueue.dequeue()
             guard let listenersToExecute = listeners[ObjectIdentifier(type(of: datedEvent.event))] else {
                 continue
             }