Struct core::sync::atomic::AtomicIsize [] [src]

pub struct AtomicIsize {
    v: UnsafeCell<isize>,
}

A signed integer type which can be safely shared between threads.

Fields

v

Methods

impl AtomicIsize

const fn new(v: isize) -> AtomicIsize

Creates a new AtomicIsize.

Examples

fn main() { use std::sync::atomic::AtomicIsize; let atomic_forty_two = AtomicIsize::new(42); }
use std::sync::atomic::AtomicIsize;

let atomic_forty_two  = AtomicIsize::new(42);

fn load(&self, order: Ordering) -> isize

Loads a value from the isize.

load takes an Ordering argument which describes the memory ordering of this operation.

Panics

Panics if order is Release or AcqRel.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let some_isize = AtomicIsize::new(5); assert_eq!(some_isize.load(Ordering::Relaxed), 5); }
use std::sync::atomic::{AtomicIsize, Ordering};

let some_isize = AtomicIsize::new(5);

assert_eq!(some_isize.load(Ordering::Relaxed), 5);

fn store(&self, val: isize, order: Ordering)

Stores a value into the isize.

store takes an Ordering argument which describes the memory ordering of this operation.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let some_isize = AtomicIsize::new(5); some_isize.store(10, Ordering::Relaxed); assert_eq!(some_isize.load(Ordering::Relaxed), 10); }
use std::sync::atomic::{AtomicIsize, Ordering};

let some_isize = AtomicIsize::new(5);

some_isize.store(10, Ordering::Relaxed);
assert_eq!(some_isize.load(Ordering::Relaxed), 10);

Panics

Panics if order is Acquire or AcqRel.

fn swap(&self, val: isize, order: Ordering) -> isize

Stores a value into the isize, returning the old value.

swap takes an Ordering argument which describes the memory ordering of this operation.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let some_isize = AtomicIsize::new(5); assert_eq!(some_isize.swap(10, Ordering::Relaxed), 5); }
use std::sync::atomic::{AtomicIsize, Ordering};

let some_isize = AtomicIsize::new(5);

assert_eq!(some_isize.swap(10, Ordering::Relaxed), 5);

fn compare_and_swap(&self, current: isize, new: isize, order: Ordering) -> isize

Stores a value into the isize if the current value is the same as the current value.

The return value is always the previous value. If it is equal to current, then the value was updated.

compare_and_swap also takes an Ordering argument which describes the memory ordering of this operation.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let some_isize = AtomicIsize::new(5); assert_eq!(some_isize.compare_and_swap(5, 10, Ordering::Relaxed), 5); assert_eq!(some_isize.load(Ordering::Relaxed), 10); assert_eq!(some_isize.compare_and_swap(6, 12, Ordering::Relaxed), 10); assert_eq!(some_isize.load(Ordering::Relaxed), 10); }
use std::sync::atomic::{AtomicIsize, Ordering};

let some_isize = AtomicIsize::new(5);

assert_eq!(some_isize.compare_and_swap(5, 10, Ordering::Relaxed), 5);
assert_eq!(some_isize.load(Ordering::Relaxed), 10);

assert_eq!(some_isize.compare_and_swap(6, 12, Ordering::Relaxed), 10);
assert_eq!(some_isize.load(Ordering::Relaxed), 10);

fn fetch_add(&self, val: isize, order: Ordering) -> isize

Add an isize to the current value, returning the previous value.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let foo = AtomicIsize::new(0); assert_eq!(foo.fetch_add(10, Ordering::SeqCst), 0); assert_eq!(foo.load(Ordering::SeqCst), 10); }
use std::sync::atomic::{AtomicIsize, Ordering};

let foo = AtomicIsize::new(0);
assert_eq!(foo.fetch_add(10, Ordering::SeqCst), 0);
assert_eq!(foo.load(Ordering::SeqCst), 10);

fn fetch_sub(&self, val: isize, order: Ordering) -> isize

Subtract an isize from the current value, returning the previous value.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let foo = AtomicIsize::new(0); assert_eq!(foo.fetch_sub(10, Ordering::SeqCst), 0); assert_eq!(foo.load(Ordering::SeqCst), -10); }
use std::sync::atomic::{AtomicIsize, Ordering};

let foo = AtomicIsize::new(0);
assert_eq!(foo.fetch_sub(10, Ordering::SeqCst), 0);
assert_eq!(foo.load(Ordering::SeqCst), -10);

fn fetch_and(&self, val: isize, order: Ordering) -> isize

Bitwise and with the current isize, returning the previous value.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let foo = AtomicIsize::new(0b101101); assert_eq!(foo.fetch_and(0b110011, Ordering::SeqCst), 0b101101); assert_eq!(foo.load(Ordering::SeqCst), 0b100001); }
use std::sync::atomic::{AtomicIsize, Ordering};

let foo = AtomicIsize::new(0b101101);
assert_eq!(foo.fetch_and(0b110011, Ordering::SeqCst), 0b101101);
assert_eq!(foo.load(Ordering::SeqCst), 0b100001);

fn fetch_or(&self, val: isize, order: Ordering) -> isize

Bitwise or with the current isize, returning the previous value.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let foo = AtomicIsize::new(0b101101); assert_eq!(foo.fetch_or(0b110011, Ordering::SeqCst), 0b101101); assert_eq!(foo.load(Ordering::SeqCst), 0b111111); }
use std::sync::atomic::{AtomicIsize, Ordering};

let foo = AtomicIsize::new(0b101101);
assert_eq!(foo.fetch_or(0b110011, Ordering::SeqCst), 0b101101);
assert_eq!(foo.load(Ordering::SeqCst), 0b111111);

fn fetch_xor(&self, val: isize, order: Ordering) -> isize

Bitwise xor with the current isize, returning the previous value.

Examples

fn main() { use std::sync::atomic::{AtomicIsize, Ordering}; let foo = AtomicIsize::new(0b101101); assert_eq!(foo.fetch_xor(0b110011, Ordering::SeqCst), 0b101101); assert_eq!(foo.load(Ordering::SeqCst), 0b011110); }
use std::sync::atomic::{AtomicIsize, Ordering};

let foo = AtomicIsize::new(0b101101);
assert_eq!(foo.fetch_xor(0b110011, Ordering::SeqCst), 0b101101);
assert_eq!(foo.load(Ordering::SeqCst), 0b011110);

Trait Implementations

impl Default for AtomicIsize

fn default() -> Self

impl Sync for AtomicIsize

impl Debug for AtomicIsize

fn fmt(&self, f: &mut Formatter) -> Result