NSURLSession内存泄漏 [英] NSURLSession memory leak

问题描述

即使在NSURLSession无效，使用Instruments运行配置文件之后，一些名为TubeManager的类（可能是私有），HTTPConnectionCache和HTTPConnectionCacheDictionary仍然在内存中存在。

Even after invalidate a NSURLSession, running a profile using Instruments, some classes (probably privates) called TubeManager, HTTPConnectionCache and HTTPConnectionCacheDictionary still alive in memory.

代码片段到再现：

NSURLSessionConfiguration* config = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession* session = [NSURLSession sessionWithConfiguration:config];
NSURLRequest* request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.google.com"]];
NSURLSessionDataTask* sessionDataTask = [session dataTaskWithRequest:request
                                               completionHandler:^(NSData *data, NSURLResponse *response, NSError *error)
{
    [session finishTasksAndInvalidate];
}];
[sessionDataTask resume];

推荐答案

在错误的位置调用finishTasksAndInvalidate ...
completionHandler用于处理响应它与会话无关

finishTasksAndInvalidate called in wrong place... completionHandler is for handling response it has nothing to do with session

这是正确的代码：

NSURLSessionConfiguration* config = [NSURLSessionConfigurationdefaultSessionConfiguration];
NSURLSession* session = [NSURLSession sessionWithConfiguration:config];
NSURLRequest* request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.google.com"]];
NSURLSessionDataTask* sessionDataTask = [session dataTaskWithRequest:request
                                           completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
   // handle response...
}];
[sessionDataTask resume];
[session finishTasksAndInvalidate];

这篇关于NSURLSession内存泄漏的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！