NSImage is formally documented as largely not thread-safe: The following classes and functions are generally not thread-safe. In most cases, you can use these classes from any thread as long as you use them from only one thread at a time. Check the class documentation for additional details. Apple’s Threading Programming Guide > Appendix A:… Read more
Every now and again I’ll go to do something really innocuous with an Apple framework, like disassemble it in Hopper or check the link headers. And every. single. time. I forget that Apple did some really weird shit in Big Sur, and removed the binaries. $ ls -lh /System/Library/Frameworks/AppKit.framework/Versions/Current/AppKit ls: /System/Library/Frameworks/AppKit.framework/Versions/Current/AppKit: No such file or… Read more
This is just a little snippet that is quite useful for reporting when your GUI thread (the main thread / actor) hangs for a significant amount of time. There are numerous heavier-weight tools for analysing this sort of thing, but I’ve found that this simple monitor does what I need most of the time. You… Read more
I just read up a bit on io_uring, prompted by a Swift Forums thread relating to it, and it made me laugh. To a lot of people it’s an amazing new[ish] high-performance I/O system for Linux. Which it is (albeit with some serious security concerns, apparently). A lot of people are very excited by it.… Read more
Failed to get a sandbox extension Right from there, you know you’re going to have a bad day. đ Then you try to actually use the file dropped on your app, and you get: Upload preparation for claim 1C0F9013-4DEB-4E5D-8896-F522AA979BA6 completed with error: Error Domain=NSCocoaErrorDomain Code=513 “âExample.jpgâ couldnât be copied because you donât have permission to… Read more
ContentsBaseline: XcodeCommon limitation: no Light/Dark mode supportThe contestantsCode Block ProPerformanceProsConsCodeColorerPerformanceCode Syntax BlockPerformanceProsConsEnlighterPerformanceProsConsHighlighting Code BlockPerformanceProsConsPrismaticSyntax-highlighting Code Block (with Server-side Rendering)PerformanceProsConsSyntaxHighlighter EvolvedPerformanceProsConsUrvanov Syntax HighlighterPerformanceProsConsThe winnerWhat are other websites using? The built-in “code” block for WordPress (the CMS I use for this site) is virtually useless – it’s just a <pre> block, essentially. The appearance may vary depending… Read more
I’ve been exploring SwiftData lately, and I’ve been unpleasantly surprised by how many sharp edges it has. I’m going to try to describe some of them here, so that hopefully others can avoid them (or perhaps be dissuaded from using SwiftData to begin with). I’m using Xcode 15.0.1 (Swift 5.9) on macOS 14.1 (Sonoma). Background… Read more