Struct Semaphore 

pub struct Semaphore { /* private fields */ }

Counting semaphore.

Implementations

impl Semaphore

pub fn new(initial: u32, max: u32) -> Result<Self>

Create a counting semaphore via heap allocation (only in heap mode).

pub fn take(&self, timeout_ms: u32) -> Result<()>

Decrement (take) the semaphore, blocking up to timeout_ms if the count is zero.

Errors

Returns Error::Timeout if the semaphore cannot be taken within timeout_ms.

pub fn give(&self)

Post/give the semaphore.

Trait Implementations

impl Debug for Semaphore

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

Formats the value using the given formatter.

impl Drop for Semaphore

fn drop(&mut self)

Executes the destructor for this type.

impl Send for Semaphore

impl Sync for Semaphore