LocalIrqDisabled

ostd::sync

Enum LocalIrqDisabled 

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pub enum LocalIrqDisabled {}
Expand description

A guardian that disables IRQs while holding a lock.

This guardian would incur a certain time overhead over PreemptDisabled. So prefer avoiding using this guardian when IRQ handlers are allowed to get executed while holding the lock. For example, if a lock is never used in the interrupt context, then it is ok not to use this guardian in the process context.

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impl SpinGuardian for LocalIrqDisabled

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type Guard = DisabledLocalIrqGuard

The guard type for holding a spin lock or a spin-based write lock.
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type ReadGuard = DisabledLocalIrqGuard

The guard type for holding a spin-based read lock.
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fn guard() -> Self::Guard

Creates a new guard.
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fn read_guard() -> Self::Guard

Creates a new read guard.

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