Struct Counter 

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

Core runtime types and traits used to define and run a crawl. A thread-safe counter using atomic operations.

This is a wrapper around AtomicUsize that provides a more ergonomic API for counting operations in concurrent environments.

Example

use spider_core::state::Counter;

let counter = Counter::new();
counter.inc();
counter.add(5);
assert_eq!(counter.get(), 6);

Implementations

impl Counter

pub fn new() -> Counter

Creates a new counter initialized to 0.

pub fn with_value(value: usize) -> Counter

Creates a new counter with the specified initial value.

pub fn inc(&self)

Increments the counter by 1.

pub fn dec(&self)

Decrements the counter by 1.

pub fn add(&self, value: usize)

Adds a value to the counter.

pub fn sub(&self, value: usize)

Subtracts a value from the counter.

pub fn get(&self) -> usize

Gets the current value of the counter.

pub fn set(&self, value: usize)

Sets the counter to a specific value.

pub fn swap(&self, value: usize) -> usize

Atomically swaps the counter value and returns the old value.

pub fn compare_and_swap(&self, current: usize, new: usize) -> usize

Atomically compares and swaps the value.

Trait Implementations

impl Clone for Counter

fn clone(&self) -> Counter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Counter

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for Counter

fn default() -> Counter

Returns the “default value” for a type.