Struct core::sync::atomic::AtomicIsize
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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);