Module atomic

Re-export portable atomic.

Although core contains a sync::atomic module, these are dependent on the target having atomic instructions, and the types are missing when the platform cannot support them. Zephyr, however, does provide atomics on platforms that don’t support atomic instructions, using spinlocks. In the Rust-embedded world, this is done through the portable-atomic crate, which will either just re-export the types from core, or provide an implementation using spinlocks when those aren’t available.

Modules

hint

Re-export of the core::hint module.

Macros

cfg_has_atomic_8

cfg_has_atomic_16

cfg_has_atomic_32

cfg_has_atomic_64

cfg_has_atomic_128

cfg_has_atomic_cas

cfg_has_atomic_ptr

cfg_no_atomic_8

cfg_no_atomic_16

cfg_no_atomic_32

cfg_no_atomic_64

cfg_no_atomic_128

cfg_no_atomic_cas

cfg_no_atomic_ptr

Structs

AtomicBool

A boolean type which can be safely shared between threads.

AtomicI8

An integer type which can be safely shared between threads.

AtomicI16

An integer type which can be safely shared between threads.

AtomicI32

An integer type which can be safely shared between threads.

AtomicI64

An integer type which can be safely shared between threads.

AtomicI128

An integer type which can be safely shared between threads.

AtomicIsize

An integer type which can be safely shared between threads.

AtomicPtr

A raw pointer type which can be safely shared between threads.

AtomicU8

An integer type which can be safely shared between threads.

AtomicU16

An integer type which can be safely shared between threads.

AtomicU32

An integer type which can be safely shared between threads.

AtomicU64

An integer type which can be safely shared between threads.

AtomicU128

An integer type which can be safely shared between threads.

AtomicUsize

An integer type which can be safely shared between threads.

Enums

Ordering

Atomic memory orderings

Functions

compiler_fence

A “compiler-only” atomic fence.

fence

An atomic fence.