Switch IRQ handler's map from BTreeMap to array

[Lurk]

Grepped through the code, I found nice TODO:

kerla/kernel/interrupt.rs

Lines 8 to 11 in 2ff75ca

	use alloc::collections::BTreeMap;
	// TODO: Use a simple array for faster access.
	static IRQ_HANDLERS: SpinLock<BTreeMap<u8, Box<dyn FnMut() + Send + Sync>>> =

We want to have

[Option::<Box<dyn FnMut() + Send + Sync>>::None; 255] 

instead of

BTreeMap<u8, Box<dyn FnMut() + Send + Sync>>

as an IRQ handler's map.

If I get it right, I will make a pull request.

[nuta]

Yes you’re correct. Thanks in advance :)

…

On Fri, Oct 29, 2021 at 17:07 Serhiy Barhamon ***@***.***> wrote: Grepped through the code, I found nice TODO: https://github.com/nuta/kerla/blob/2ff75cae17f3c947f140f62bb3fa2032cc9a69d4/kernel/interrupt.rs#L8-L11 We want to have [Option::<Box<dyn FnMut() + Send + Sync>>>::None; 255] instead of BTreeMap<u8, Box<dyn FnMut() + Send + Sync>> as an IRQ handler's map. If I get it right, I will make a pull request. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#29>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABGR2EVSVMKIEOFAX55XAZDUJJP45ANCNFSM5G6WXHUQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.