NSAutoReleasePool 泄漏

发布于 2024-10-10 11:31:23 字数 336 浏览 7 评论 0原文

谁能告诉我为什么 NSAutoreleasePool 在这段代码中泄漏。我正在使用仪器来检查泄漏和泄漏。这段代码不知何故泄漏了。谁能引导我走向正确的方向。我在其他地方有完全相同的代码&它运行良好。

ASIHTTPRequest *request = [[ASIHTTPRequest alloc] initWithURL:self.url];
 [request setDelegate:self];

 NSOperationQueue *queue = self.downloadQueue;
 [queue addOperation:request];
 [request release];

原文

Can anyone tell me why is NSAutoreleasePool leaking in this code. I am using instruments to check leaks & this code is somehow leaking. Can anyone guide me to the right direction. I have the exact same code elsewhere & its running fine.

ASIHTTPRequest *request = [[ASIHTTPRequest alloc] initWithURL:self.url];
 [request setDelegate:self];

 NSOperationQueue *queue = self.downloadQueue;
 [queue addOperation:request];
 [request release];

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玩心态 2024-10-17 11:31:23

如果您围绕该代码创建 NSAutoreleasePool，它应该会消失。如果此代码未在主线程上运行，通常会发生这种情况。

NSAutoreleasePool* pool = [NSAutoreleasePool new];
// Your code goes here
[pool drain];

另外，请注意，如果您在 NSAutoreleasePool new/drain 块内循环，则会出现泄漏，直到到达排水管。这样做的结果是，如果您在循环内分配太多内存，您的应用程序仍然可能会耗尽内存。在这种情况下，您可能需要在每次循环中创建并耗尽第二个 NSAutoreleasePool （或者可能每第 n 次循环以避免一些开销）。

It should go away if you create an NSAutoreleasePool around that code. This usually happens if this code is not being run on the main thread.

NSAutoreleasePool* pool = [NSAutoreleasePool new];
// Your code goes here
[pool drain];

Also, be aware that if you are looping inside an NSAutoreleasePool new/drain block, you will appear to leak until you hit the drain. The upshot of this is if you are allocating too much memory inside the loop your app can still run out of memory. In that case you may need to create and drain a second NSAutoreleasePool every time through the loop (or possibly every nth time through the loop to avoid some of the overhead).

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