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// Copyright 2016 Amanieu d'Antras
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// copied, modified, or distributed except according to those terms.
use crate::raw_mutex::RawMutex;
use lock_api::RawMutexFair;
/// Raw fair mutex type backed by the parking lot.
pub struct RawFairMutex(RawMutex);
unsafe impl lock_api::RawMutex for RawFairMutex {
const INIT: Self = RawFairMutex(<RawMutex as lock_api::RawMutex>::INIT);
type GuardMarker = <RawMutex as lock_api::RawMutex>::GuardMarker;
#[inline]
fn lock(&self) {
self.0.lock()
}
#[inline]
fn try_lock(&self) -> bool {
self.0.try_lock()
}
#[inline]
unsafe fn unlock(&self) {
self.unlock_fair()
}
#[inline]
fn is_locked(&self) -> bool {
self.0.is_locked()
}
}
unsafe impl lock_api::RawMutexFair for RawFairMutex {
#[inline]
unsafe fn unlock_fair(&self) {
self.0.unlock_fair()
}
#[inline]
unsafe fn bump(&self) {
self.0.bump()
}
}
unsafe impl lock_api::RawMutexTimed for RawFairMutex {
type Duration = <RawMutex as lock_api::RawMutexTimed>::Duration;
type Instant = <RawMutex as lock_api::RawMutexTimed>::Instant;
#[inline]
fn try_lock_until(&self, timeout: Self::Instant) -> bool {
self.0.try_lock_until(timeout)
}
#[inline]
fn try_lock_for(&self, timeout: Self::Duration) -> bool {
self.0.try_lock_for(timeout)
}
}