Struct jemalloc_ctl::thread::Allocated

pub struct Allocated(_);

A type providing access to the total number of bytes allocated by the current thread.

Unlike stats::Allocated, the value returned by this type is not the number of bytes currently allocated, but rather the number of bytes that have ever been allocated by this thread.

The get method doesn't return the value directly, but actually a pointer to the value. This allows for very fast repeated lookup, since there is no function call overhead. The pointer type cannot be sent to other threads, but Allocated::get can be called on different threads and will return the appropriate pointer for each of them.

Example

use jemalloc_ctl::thread::Allocated;

let allocated = Allocated::new().unwrap();
let allocated = allocated.get().unwrap();

let a = allocated.get();
let buf = vec![0; 1024 * 1024];
let b = allocated.get();
drop(buf);
let c = allocated.get();

assert!(a < b);
assert_eq!(b, c);

Methods

impl Allocated

fn new() -> Result<Allocated>

Returns a new Allocated.

fn get(&self) -> Result<ThreadLocal<u64>>

Returns a thread-local pointer to the total number of bytes allocated by this thread.

Trait Implementations

impl Copy for Allocated

impl Clone for Allocated

fn clone(&self) -> Allocated

Returns a copy of the value.

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

Performs copy-assignment from source.