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.