Function core::arch::wasm::memory_atomic_notify

pub unsafe fn memory_atomic_notify(ptr: *mut i32, waiters: u32) -> u32

🔬 This is a nightly-only experimental API. (stdsimd #48556)

This is supported on target_family="wasm" and target feature atomics only.

Corresponding intrinsic to wasm’s memory.atomic.notify instruction

This function will notify a number of threads blocked on the address indicated by ptr. Threads previously blocked with the i32_atomic_wait and i64_atomic_wait functions above will be woken up.

The waiters argument indicates how many waiters should be woken up (a maximum). If the value is zero no waiters are woken up.

Return value

Returns the number of waiters which were actually notified.