Re: NSOperation Issues
Re: NSOperation Issues
- Subject: Re: NSOperation Issues
- From: Varun Chandramohan <email@hidden>
- Date: Mon, 21 Apr 2014 23:41:40 +0000
- Thread-topic: NSOperation Issues
Hi Ken,
You are right this is not NSOp issues as it seems to have finished.
[queue waitUntilAllOperationsAreFinished];
[op isCancelled] replied with NO
[op isFinished] with YES
So this has to be some QCCAESPadCryptor internal error. Ill investigate
this further. Thank you.
Regards,
Varun
On 22/04/2014 9:10 am, "Ken Thomases" <email@hidden> wrote:
>On Apr 21, 2014, at 5:47 PM, Varun Chandramohan wrote:
>
>> op = [[QCCAESPadCryptor alloc] initToDecryptInputData:[NSData
>> dataWithBytes:cyphertext_dat length:sizeof(cyphertext_dat)]
>> keyData:[NSData
>> dataWithBytes:key_dat length:sizeof(key_dat)]
>> ];
>> op.ivData = [NSData dataWithBytes:iv_dat length:sizeof(iv_dat)];
>> queue = [[NSOperationQueue alloc] init];
>> [queue addOperation:op];
>> [queue waitUntilAllOperationsAreFinished];
>
>> After [queue waitUntilAllOperationsAreFinished];
>
>> op.outputData is nil. This was not the case before. I don¹t know how to
>> debug this.
>
>It sounds like the operation's internal code failed or, possibly, that
>the operation was cancelled.
>
>Check the value of [op isCancelled] and [op isFinished]. If it's
>finished and not cancelled, then it ran to completion and the problem has
>nothing to do with the operation queue. I don't have any idea why it
>might have failed. That would be a matter of the implementation of
>QCCAESPadCryptor and/or the specific cypher text, key, and input data
>you're passing it.
>
>Regards,
>Ken
>
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