Struct HardKernelTimerCallback 

pub struct HardKernelTimerCallback { /* private fields */ }

Explicit capability for a bounded callback that may execute in hard IRQ.

The callback allocation is created and destroyed in task context. The timer base invokes it without allocating, freeing, sleeping, performing a registry lookup, or holding the deadline-base lock. Completion is moved to ktimers/%u before the callback payload can be dropped.

Implementations

impl HardKernelTimerCallback

pub unsafe fn new(callback: HardRestartableKernelTimerCallback) -> Self

Creates one hard-expiry callback capability.

Safety

Every invocation must be bounded, non-panicking, allocation-free and valid in hard IRQ context. It must use only IRQ-safe synchronization and prebound capabilities; it may not sleep, perform registry lookup, invoke an untyped external callback, or clone/drop owning references.