Struct Counter 

pub struct Counter(/* private fields */);

An incrementing counter for generating unique ids.

This can be used safely from multiple threads.

The counter will overflow if next() is called 2^64 - 2 times. If this is possible for your application, and reuse would be undesirable, use something else.

Implementations

impl Counter

pub const fn new() -> Counter

Create a new counter.

pub const unsafe fn new_unchecked(init: u64) -> Counter

Creates a new counter with a given starting value.

Safety

The value must not be zero.

pub fn next(&self) -> u64

Return the next value.

pub fn next_nonzero(&self) -> NonZeroU64

Return the next value, as a NonZeroU64.