Struct tikv_jemalloc_ctl::background_thread

pub struct background_thread;

State of internal background worker threads.

When enabled, background threads are created on demand (the number of background threads will be no more than the number of CPUs or active arenas). Threads run periodically and handle purging asynchronously.

use tikv_jemalloc_ctl::background_thread;
let bg = background_thread::mib().unwrap();
let s = bg.read().unwrap();
println!("background_threads enabled: {}", s);
let p = background_thread::update(!s).unwrap();
println!("background_threads enabled: {} => {}", p, bg.read().unwrap());
assert_eq!(p, s);
background_thread::write(s).unwrap();
println!("background_threads enabled: {}", bg.read().unwrap());
assert_eq!(p, s);

Implementations

impl background_thread

pub fn mib() -> Result<background_thread_mib>

Returns Management Information Base (MIB)

This value can be used to access the key without doing string lookup.

pub fn name() -> &'static Name

Key crate::keys::Name.

impl background_thread

pub fn read() -> Result<bool>

Reads value using string API.

impl background_thread

pub fn write(value: bool) -> Result<()>

Writes value using string API.

impl background_thread

pub fn update(value: bool) -> Result<bool>

Updates key to value returning its old value using string API.