Any time you work with a publicly accessible file, you should treat that file as an untrusted and potentially dangerous resource.
Viewed times 0 I am working with an external device that I receive data from. At this point the delegate should dispose of the stream object by doing the mirror-opposite of what it did to prepare the object. Listing 3 illustrates how you might do all of these things.
Really useful snippets from the Core Data Performance article Reducing Memory Overhead It is sometimes the case that you want to use managed objects on a temporary basis, for example to calculate an average value for a particular attribute.
You should typically only do so, however, if you are sure that either you will not need the actual property data or you already have the information in the row cache, otherwise you will incur multiple trips to the persistent store.
Schedule the stream object on a run loop and open the stream. Example of an appropriate answer Here is an example of an appropriate answer that might satisfy this type of question.