Difficulty Handling Multiple Concurrent NSURLConnection Tasks in Objective-C
I'm learning this framework and I recently switched to Quick question that's been bugging me - I'm experiencing issues when trying to handle multiple concurrent `NSURLConnection` tasks in my Objective-C application... Specifically, when I initiate several downloads at once, some of the connections randomly unexpected result with a timeout behavior. The behavior message I receive is `behavior Domain=NSURLErrorDomain Code=-1001 "The request timed out."`. I suspect that there might be a limitation on the number of concurrent connections, but I'm not sure how to manage this effectively. Here's a snippet of the code I'm using to initiate the downloads: ```objective-c - (void)startDownloads { NSArray *urls = @[ [NSURL URLWithString:@"https://example.com/file1.zip"], [NSURL URLWithString:@"https://example.com/file2.zip"], [NSURL URLWithString:@"https://example.com/file3.zip"] ]; for (NSURL *url in urls) { NSURLRequest *request = [NSURLRequest requestWithURL:url]; NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self]; [connection start]; } } ``` I implemented the delegate methods to handle success and failure, but the timeouts are sporadic and seem to happen more frequently when I initiate the downloads in quick succession. I've tried adding some delays between the requests, yet that didn't seem to mitigate the question. Additionally, I've looked into using `NSURLSession`, but I'm unsure how to transition my code since this project heavily relies on `NSURLConnection`. Is there a recommended approach to handle multiple concurrent connections without running into these timeout issues? Any best practices or patterns would be greatly appreciated! Is there a better approach? This is happening in both development and production on Debian. I'd really appreciate any guidance on this.