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is posix aio a good choice to do async file I/O on macOS? to avoid polling i want to specify a callback that is called when operation completes, is that possible at all?
in Files and Storage
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hello,   the wiki article for C10k problem states this:   >>> The term [C10k problem] was coined in 1999 by Dan Kegel, citing the Simtel FTP host, cdrom.com, serving 10,000 clients at once over 1 gigabit per second Ethernet in that year. The term has since been used for the general issue of large number of clients, with similar numeronyms for… (Show more)
in Networking
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i can see the <experimental/coroutine> header, but how do i use it? all examples i found rely on co_await, etc, but these are not in the header.
in Apple LLVM Compiler
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My own iOS app is using AVFoundation to do barcode scanning. Under Mac Catalyst I'm getting an error. Turns out the Apple provided AVCam demo app has the exact same issue.   Both the Swift and Objective-C versions of the AVCam demo app fail but the Objective-C version gives a better error so I'll refer to that in the rest of the question.   In… (Show more)
in Mac Catalyst
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any idea why Apple wants NSPhotoLibraryUsageDescription key in the app's plist as part of submission process?   we DON'T use direct photo library access (and we don't use any third party library that can cause it, in fact we don't use any third party library at all). we DO use UIImagePickerController (so user can select a photo of his/her choice… (Show more)
in AVFoundation (Audio)
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I'm trying to get a pkg file notarized. The notarization process worked fine for me until some day ago. Now, when I run the altool command, I get this error : *** Error: To use this application, you must first sign in to iTunes Connect and sign the relevant contracts. (1048) I have checked https://developer.apple.com/account/ and… (Show more)
in Mac Apps
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Hello.   I am working on adding support for iOS 13. Previously the app has been able to record audio for transmition while in the background when the user presses an external button, such as one from a wired headset. This is important as many users such as first responders are currently able to talk by pressing a button, rather than pulling the… (Show more)
in AVFoundation (Audio)