Struct io_uring::opcode::FutexWake

pub struct FutexWake { /* private fields */ }

Wake up waiters on a futex, like but not equivalant to futex(2)’s FUTEX_WAKE_BITSET.

Wake any waiters on the futex indicated by futex and at most val futexes. futex_flags indicates the futex2(2) modifier flags. If a given bitset for who to wake is desired, then that must be set in mask. Use FUTEX_BITSET_MATCH_ANY (truncated to futex bits) to match any waiter on the given futex. flags are currently unused and hence 0 must be passed.

Implementations

impl FutexWake

pub fn new(futex: *const u32, val: u64, mask: u64, futex_flags: u32) -> Self

pub const CODE: u8 = 52u8

The opcode of the operation. This can be passed to Probe::is_supported to check if this operation is supported with the current kernel.

pub const fn flags(self, flags: u32) -> Self

pub fn build(self) -> Entry

Trait Implementations

impl Debug for FutexWake

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

Formats the value using the given formatter.