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Update the code comments about status

This commit is contained in:
DreamPiggy 2020-12-28 19:31:47 +08:00
parent 5ce33b12ba
commit 9ef128f5a1
1 changed files with 2 additions and 1 deletions
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3
SDWebImage/Core/SDWebImageDownloaderOperation.m
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@ -246,7 +246,8 @@ typedef NSMutableDictionary<NSString *, id> SDCallbacksDictionary;
}
// NSOperation disallow setFinished=YES **before** operation's start method been called
// We check for the initialized status and only setFinished=YES for running status.
// We check for the initialized status, which is isExecuting == NO && isFinished = NO
// Ony update for non-intialized status, which is !(isExecuting == NO && isFinished = NO), or if (self.isExecuting || self.isFinished) {...}
if (self.isExecuting || self.isFinished) {
if (self.isExecuting) self.executing = NO;
if (!self.isFinished) self.finished = YES;