From 13d0e739fbb36f9e99e3cdb8ca29256894f9e359 Mon Sep 17 00:00:00 2001
From: DreamPiggy <lizhuoli1126@126.com>
Date: Wed, 11 Mar 2020 11:54:10 +0800
Subject: [PATCH] Update the coderQueue QoS based on
 SDWebImageDownloaderLowPriority && SDWebImageDownloaderHighPriority

---
 SDWebImage/Core/SDWebImageDownloaderOperation.m | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/SDWebImage/Core/SDWebImageDownloaderOperation.m b/SDWebImage/Core/SDWebImageDownloaderOperation.m
index 1de8212a..00d803f2 100644
--- a/SDWebImage/Core/SDWebImageDownloaderOperation.m
+++ b/SDWebImage/Core/SDWebImageDownloaderOperation.m
@@ -208,8 +208,13 @@ typedef NSMutableDictionary<NSString *, id> SDCallbacksDictionary;
     if (self.dataTask) {
         if (self.options & SDWebImageDownloaderHighPriority) {
             self.dataTask.priority = NSURLSessionTaskPriorityHigh;
+            self.coderQueue.qualityOfService = NSQualityOfServiceUserInteractive;
         } else if (self.options & SDWebImageDownloaderLowPriority) {
             self.dataTask.priority = NSURLSessionTaskPriorityLow;
+            self.coderQueue.qualityOfService = NSQualityOfServiceBackground;
+        } else {
+            self.dataTask.priority = NSURLSessionTaskPriorityDefault;
+            self.coderQueue.qualityOfService = NSQualityOfServiceDefault;
         }
         [self.dataTask resume];
         for (SDWebImageDownloaderProgressBlock progressBlock in [self callbacksForKey:kProgressCallbackKey]) {