Struct SemHandle 

pub struct SemHandle { /* private fields */ }

Implementations

impl SemHandle

pub fn create( name: &str, value: u32, unlink: bool, ) -> Result<(Self, Option<String>), SemError>

pub fn open_existing(name: &str) -> Result<Self, SemError>

pub fn as_handle_int(&self) -> isize

pub const unsafe fn from_raw(raw: *mut sem_t) -> Self

Rebuild a handle from the integer a SemLock stored.

Safety

raw must be a live sem_open handle. Drop closes it, so a caller that still owns that close must forget this value.

pub fn trywait(&self) -> TryAcquireStatus

pub fn post(&self) -> Result<(), SemError>

pub fn wait(&self, deadline: Option<&Deadline>) -> WaitStatus

pub fn value(&self) -> Result<i32, SemError>

Trait Implementations

impl Debug for SemHandle

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

Formats the value using the given formatter.

impl Drop for SemHandle

Available on Unix only.

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Send for SemHandle

Available on Unix only.

impl Sync for SemHandle

Available on Unix only.