pub enum WriteIrqDisabled {}Expand description
A guardian that disables IRQs while holding a write lock.
This guardian should only be used for a RwLock. Using it with a SpinLock will behave in
the same way as using LocalIrqDisabled.
When using this guardian with a RwLock, holding the read lock will only disable preemption,
but holding a write lock will disable local IRQs. The user must ensure that the IRQ handlers
never take the write lock, so we can take the read lock without disabling IRQs, but we are
still free of deadlock even if the IRQ handlers are triggered in the middle.
Trait Implementations§
Source§impl SpinGuardian for WriteIrqDisabled
impl SpinGuardian for WriteIrqDisabled
Source§type Guard = DisabledLocalIrqGuard
type Guard = DisabledLocalIrqGuard
The guard type for holding a spin lock or a spin-based write lock.
Source§type ReadGuard = DisabledPreemptGuard
type ReadGuard = DisabledPreemptGuard
The guard type for holding a spin-based read lock.
Source§fn read_guard() -> Self::ReadGuard
fn read_guard() -> Self::ReadGuard
Creates a new read guard.
Auto Trait Implementations§
impl Freeze for WriteIrqDisabled
impl RefUnwindSafe for WriteIrqDisabled
impl Send for WriteIrqDisabled
impl Sync for WriteIrqDisabled
impl Unpin for WriteIrqDisabled
impl UnwindSafe for WriteIrqDisabled
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