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POupload files in background via ftp on iphone
 

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    <p>i'm trying to establish an FTP connection within an app. i want to upload several files to a FTP server, all files in one directory. So at first i want to create the remote directory.</p> <pre><code>- (void) createRemoteDir { NSURL *destinationDirURL = [NSURL URLWithString: uploadDir]; CFWriteStreamRef writeStreamRef = CFWriteStreamCreateWithFTPURL(NULL, (__bridge CFURLRef) destinationDirURL); assert(writeStreamRef != NULL); ftpStream = (__bridge_transfer NSOutputStream *) writeStreamRef; BOOL success = [ftpStream setProperty: ftpUser forKey: (id)kCFStreamPropertyFTPUserName]; if (success) { NSLog(@"\tsuccessfully set the user name"); } success = [ftpStream setProperty: ftpPass forKey: (id)kCFStreamPropertyFTPPassword]; if (success) { NSLog(@"\tsuccessfully set the password"); } ftpStream.delegate = self; [ftpStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; // open stream [ftpStream open]; } </code></pre> <p>This code doesn't work when executed in a background thread using the following call:</p> <pre><code>[self performSelectorInBackground: @selector(createRemoteDir) withObject: nil]; </code></pre> <p>my guess is that the (background-threads) runloop isn't running? If i send the message inside the main thread the uploading just works fine:</p> <pre><code>[self createRemoteDir]; </code></pre> <p>as the runloop of the main thread is up and running.</p> <p>but fairly large files are going to be uploaded; so i want to put that workload in a background thread. but how and where do i set up the NSRunLoop, so that the whole uploading happens in a background thread? Apples documentation on NSRunLoops (especially how to start them without using a timer/input source, as in this case) didn't help me out.</p>
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    1. COi found a similar question here; i really would like to see the code used for it's solution: [link](http://stackoverflow.com/questions/4930957/nsstream-and-sockets-nsstreamdelegate-methods-not-being-called)
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