embassy/embassy-extras
Liam Murphy 744e2cbb8a extras: Fix UB in Peripheral
`Peripheral` assumed that interrupts can't be preempted,
when they can be preempted by higher priority interrupts.
So I put the interrupt handler inside a critical section,
and also added checks for whether the state had been dropped
before the critical section was entered.

I also added a `'static` bound to `PeripheralState`,
since `Pin` only guarantees that the memory it directly references
will not be invalidated.
It doesn't guarantee that memory its pointee references also won't be invalidated.

There were already some implementations of `PeripheralState`
that weren't `'static`, though,
so I added an unsafe `PeripheralStateUnchecked` trait
and forwarded the `unsafe` to the constructors of the implementors.
2021-07-05 17:42:43 +10:00
..
src extras: Fix UB in Peripheral 2021-07-05 17:42:43 +10:00
Cargo.toml extras: Fix UB in Peripheral 2021-07-05 17:42:43 +10:00