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Reply to Help resolving crash after using malloc_get_all_zones()
The documentation for our low-level APIs is quite scattered, something I going into detail in in Availability of Low-Level APIs. In this specific case a good start is the header itself, which has this key titbits: Note that the validity of the addresses returned correspond to the validity reader You’re passing in NULL, which gives you the in-memory reader, which returns everything directly, and thus doesn’t need to be deallocated. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS
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Help resolving crash after using malloc_get_all_zones()
In an ObjC framework I'm developing (a dylib) that is loaded into JRE to be used via JNI (Zulu, Graal, or native image from Graal+ a JAR) I implemented a naive method that collects current memory footprint of the host process: It collects 5 numbers into a simple NSDictionary with NSString keys (physical footprint, default zone bytes used and allocated, and sums for used and allocated bytes for all zones. The code ran for some time, but at certain point my process started crashing horribly in this method -- at the last line, accessing the dictionary. Here's the code: -(NSDictionary *)memoryState { NSMutableDictionary *memoryState = [NSMutableDictionary dictionaryWithCapacity:8]; // obtain process current physical memory footprint, in bytes. task_vm_info_data_t info; mach_msg_type_number_t count = TASK_VM_INFO_COUNT; kern_return_t kr = task_info(mach_task_self(), TASK_VM_INFO, (task_info_t)&info, &count); [memoryState setObject:(kr == KERN_SUCCESS) ? @(info.phys_footprint) : [NSNull null] forKey:@physic
Topic: App & System Services SubTopic: Core OS
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Reply to MusicKit entitlement consistently missing from generated Ad Hoc Profile despite App Services configuration
I’m glad to hear that you got this sorted. [quote='876168022, kjw1978, /thread/815604?answerId=876168022#876168022, /profile/kjw1978'] Do NOT add the entitlement to app.json. [/quote] Correct. [quote='876168022, kjw1978, /thread/815604?answerId=876168022#876168022, /profile/kjw1978'] Apple now treats MusicKit as a Runtime Service [/quote] The word “now” is misleading, in that it suggests that this changed at some point. That’s not the case. MusicKit has never used entitlements. Indeed, trying to use an entitlement for this is one of the common mistakes I call out in Determining if an entitlement is real. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Code Signing SubTopic: Entitlements Tags:
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Reply to Issue with Xcode 26
If you search the ’net for “Unsupported Swift Architecture”, you’ll find a bunch of helpful advice on this front. My additions to that are: If you’re using third-party tooling or libraries, seek help from the support channel for the relevant vendor. TN3117 Resolving architecture build errors on Apple silicon describes best practices for your build architecture settings. Check your settings to make sure you’re following them. If you get stuck, try to isolate the problem into a small test project and then share that here. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Developer Tools & Services SubTopic: Xcode
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Issue with Xcode 26
How to resolve this error ? Unsupported Swift Architecture while trying to run my code. I am.using Apple laptop with M1 chip with 10 core, Mac os 26.1, xcode 26.1, simulator 26.1. THIS IS VERY URGENT FOR MY PROJECT DELIVERY. ANY PROMPT HELP IS MUCH APPRECIATED. possible to connect some expert via conference call ?
Topic: Developer Tools & Services SubTopic: Xcode
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Reply to Issue with Xcode 26
If you search the ’net for “Unsupported Swift Architecture”, you’ll find a bunch of helpful advice on this front. My additions to that are: If you’re using third-party tooling or libraries, seek help from the support channel for the relevant vendor. TN3117 Resolving architecture build errors on Apple silicon describes best practices for your build architecture settings. Check your settings to make sure you’re following them. If you get stuck, try to isolate the problem into a small test project and then share that here. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Developer Tools & Services SubTopic: Xcode
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Reply to Is Anybody interested in using Lottie animations in your SSC playground app in Xcode
I can’t comment about specific third-party libraries, so let me answer with some general guidance: As mentioned in the fine print, your playground is expected to work without a network connection. One consequence of that is that, if you rely on a third-party library, you have to vendor [1] that library, that is, copy the code into your own sourcebase. Whenever you use a third-party library, you have to make sure that your use is compatible with its licence. Finally, on a mechanical front, rather than delete the .git directory my advice is that you use git export to export a specific tag or version branch, and then try to avoid modifying the library code [2]. That’ll make it easier for Future You™ to understand how your playground is set up (-: Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com [1] The origina of this term are interesting, and if you search the ’net for “what is vendoring a library” you’ll find a bunch of backstory. [2]
Topic: Community SubTopic: Swift Student Challenge Tags:
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Reply to process.waitUntilExit never exits in tahoe 26.3
Well, that’s annoying. We have a bug to track this internally (r. 170381800). We’re hoping to fix it sooner rather than later but, as always, I can’t offer a concrete timeline. If you want to be notified when the fix starts seeding, file your own bug in Feedback Assistant and ask that it be marked as a duplicate of the above-mentioned bug. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS Tags:
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How to Create ASIF Disk Image Programmatically in Swift?
I see this in Tahoe Beta release notes macOS now supports the Apple Sparse Image Format (ASIF). These space-efficient images can be created with the diskutil image command-line tool or the Disk Utility application and are suitable for various uses, including as a backing store for virtual machines storage via the Virtualization framework. See VZDiskImageStorageDeviceAttachment. (152040832) I'm developing a macOS app using the Virtualization framework and need to create disk images in the ASIF (Apple Sparse Image Format) to make use of the new feature in Tahoe Is there an official way to create/resize ASIF images programmatically using Swift? I couldn’t find any public API that supports this directly. Any guidance or recommendations would be appreciated. Thanks!
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Getting a basic URL Filter to work
The correct value to put in the entitlement is url-filter-provider. Annoyingly, this hasn’t yet made it to the documentation (r. 164079609) but Xcode’s Signing & Capabilities editor does the right thing. Regarding KayleeSC’s bug about app submission (FB19582905) I continue to monitor that internally, but I’ve nothing concrete about its status other than that it remains un-fixed )-: Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Networking Tags:
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Accepted Use Case of the Network Extension Entitlement?
Hi! I recently had an idea to build an iOS app that allows users to create a system-level block of specified web domains by curating a blacklist on their device. If the user, for instance, inputs *example.com to their list, their iPhone would be blocked from relaying that network traffic to their ISP/DNS, and hence return an error message (iPhone can't open the page because the address is invalid) instead of successfully fetching the response from example.com's servers. The overarching goal of this app would be to allow users to time-block their use of specified websites/apps and grant them greater agency over their technology consumption, and I thought that an app that blocks traffic at the network level, combined with the ability to control when to/not to allow access, would be a powerful alternative to the existing implementations out there that work more on the browser-level (eg. via Safari extension, which is isolated to the scope of user's Safari browser) or via Screen Time (which can be easy to bypass
Topic: App & System Services SubTopic: Networking Tags:
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