[−][src]Struct kernel::spinlock::Mutex

pub struct Mutex<T: ?Sized> {
    lock: u32,
    name: &'static str,
    hart: UnsafeCell<i64>,
    data: UnsafeCell<T>,
}

A RISC-V Mutex.

Fields

lock: u32

Indicate whether data is locked. Will be passed into C code.

name: &'static str

Lock name, for debug use

hart: UnsafeCell<i64>

HartID holding the lock

data: UnsafeCell<T>

Save actual data

Implementations

impl<T> Mutex<T>[src]

pub const fn new(user_data: T, name: &'static str) -> Mutex<T>[src]

pub fn into_inner(self) -> T[src]

Consumes this mutex, returning the underlying data.

impl<T: ?Sized> Mutex<T>[src]

fn obtain_lock(&self)[src]

Obtain lock by test_and_set

pub fn lock(&self) -> MutexGuard<T>[src]

Lock mutex and return a guard

unsafe fn holding(&self) -> bool[src]

Test if lock is held by current hart

pub unsafe fn get(&self) -> &mut T[src]

Directly get mutex data regardless whether it is locked or not