Managarm: Pragmatic microkernel-based OS with asynchronous I/O

Post by mananaysiempre » Sat, Jul 27, 2024, 9:11 PM UTC

asveikau wrote: post #11

jcelerier wrote: post #2

people always say that C++ is not a good fit for kernels, but so far this is the only language I know where small teams or individuals are regularly able to create non-trivial hobby OSes from scratch that go from zero to GUI: - Serenity ( https://github.com/SerenityOS/serenity ) - not really a small team, but it managed to get to GUI as pretty much a one-man-show - Skift ( https://github.com/skift-org/skift ) - hhu:…

I think C++ is especially good for a GUI. The two counter-examples I can think of with plain C: * GTK+, though honestly speaking I think quality has dipped over the decades where C++ equivalents have flourished. * Old school Win32 style. Counter to the bad reputation, I find it easy to be productive with in plain C once you adjust your mental model to its expectations. Though it's probably better from C++ than C, for…

Post by tomcam » Sat, Jul 27, 2024, 9:49 PM UTC

mananaysiempre wrote: post #12

asveikau wrote: post #11

Earlier quoted context omitted.

I think C++ is especially good for a GUI. The two counter-examples I can think of with plain C: * GTK+, though honestly speaking I think quality has dipped over the decades where C++ equivalents have flourished. * Old school Win32 style. Counter to the bad reputation, I find it easy to be productive with in plain C once you adjust your mental model to its expectations. Though it's probably better from C++ than C, for…

Old Win32 style received less attention than it deserves, I think. It's an object system in its own right—a Smalltalkish one, at that, with an (admittedly muddled) E-style separation of synchronous and asynchronous calls!—but one rarely sees it mentioned in the same sentence as Objective-C, C++, and GObject/Vala. Part of the blame for that undoubtedly rests on Microsoft’s incompetence at documenting concepts, but wha…

Post by dang » Sat, Jul 27, 2024, 9:56 PM UTC

Post by ecjhdnc2025 » Sat, Jul 27, 2024, 10:16 PM UTC

ArsenArsen wrote: post #10

ironhaven wrote: post #5

[flagged]

WDYM? 'pragmatic' here means 'not necessarily purely microkernel-y if very difficult'. for instance, the memory manager is in the kernel in managarm

Post by netbsdusers » Sat, Jul 27, 2024, 10:28 PM UTC

ecjhdnc2025 wrote: post #18

ArsenArsen wrote: post #10

Earlier quoted context omitted.

WDYM? 'pragmatic' here means 'not necessarily purely microkernel-y if very difficult'. for instance, the memory manager is in the kernel in managarm

But this "not necessarily purely microkernel-y if very difficult" interpretation essentially means that Windows NT is pragmatic. Because this is pretty much exactly how NT came to be the mess it now is. I wonder if the parent commenter's point is that really, almost any OS design can be called "pragmatic", and therefore stressing it is particularly prideful.