dope-runtime 0.2.0

Thin io_uring adaptor with "Manifolds"
Documentation 
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use std::{future::Future, ptr::NonNull};

use dope_core::driver::{CompletionBackend, CurrentSlot};

use super::JoinHandle;
use super::TimerHeap;
use super::task_queue::TaskQueue;

#[derive(Clone, Copy)]
pub struct RuntimeHandles {
    pub(crate) exec: NonNull<TaskQueue>,
    pub(crate) timers: NonNull<TimerHeap>,
}

pub struct RuntimeCtx<B: CompletionBackend> {
    slot: CurrentSlot<B>,
}

impl<B: CompletionBackend> Clone for RuntimeCtx<B> {
    fn clone(&self) -> Self {
        *self
    }
}

impl<B: CompletionBackend> Copy for RuntimeCtx<B> {}

impl<B: CompletionBackend> RuntimeCtx<B> {
    #[inline(always)]
    pub(super) fn from_slot(slot: CurrentSlot<B>) -> Self {
        Self { slot }
    }

    #[inline(always)]
    pub fn driver(&self) -> &B::Driver {
        unsafe { self.slot.driver().as_ref() }
    }

    #[inline(always)]
    #[allow(clippy::mut_from_ref)]
    pub fn driver_mut(&self) -> &mut B::Driver {
        unsafe { &mut *self.slot.driver().as_ptr() }
    }

    #[inline(always)]
    fn extra(&self) -> &RuntimeHandles {
        unsafe { &*(self.slot.extra() as *const RuntimeHandles) }
    }

    pub fn spawn<F>(&self, fut: F) -> JoinHandle<F::Output>
    where
        F: Future + 'static,
        F::Output: 'static,
    {
        unsafe { self.extra().exec.as_ref() }.spawn(fut)
    }

    pub(crate) fn timers(&self) -> NonNull<TimerHeap> {
        self.extra().timers
    }
}