Struct classic_sync::semaphore::SemaphoreError

pub struct SemaphoreError { /* private fields */ }

Implementations

impl SemaphoreError

Wrapper of sem_t in c. Providing Semaphore access without mut access. It is super easy to share!

Example:

use std::sync::Arc;
use std::time::Duration;
use std::thread;
use classic_sync::semaphore::Semaphore;
let sem = Semaphore::new(3); // allows 3 concurrent access
let arc_sem = Arc::new(sem);
for i in 0..3 {
    let sem_copy = Arc::clone(&arc_sem);
    let tid = i;
    thread::spawn(move || {
        sem_copy.p();
        println!("Now I am granted access. I should have 2 other siblings has the access at the same time!");
        std::thread::sleep(Duration::from_secs(3));
        // Other people can't acquire the lock even when I am sleeping.
        sem_copy.v(); // You have to manually unlock it to release the lock
    });
}

pub fn code(&self) -> i32

pub fn is_timeout(&self) -> bool

pub fn msg(&self) -> String

Trait Implementations

impl Debug for SemaphoreError

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

Formats the value using the given formatter.

impl Display for SemaphoreError

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

Formats the value using the given formatter.

impl Error for SemaphoreError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

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

Provides type based access to context intended for error reports.