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Yes, real apps use Mach messaging directly. i.e.: https://source.chromium.org/chromium/chromium/src/+/main:ipc/mach_port_mac.h https://source.chromium.org/chro

• ChocolateGod 2mo ago
  Chrome is an outlier to how most apps will do things.
  • nrr 2mo ago
    The illustration that Chrome uses Mach ports is a counterexample to an (implied) insinuation that nothing in running in macOS user space uses Mach ports. Outlier or not, the fact there is at least one (albeit also very useful and very popular) application that uses them ties back to the conversation about how they're a kernel feature worth having for Mac compatibility.
  • wpm 2mo ago
    Any launchd task that declares any MachServices does.