make the ceiling part of the task signature

remove the P.as_ceiling method
This commit is contained in:
Jorge Aparicio 2017-04-27 19:06:22 -05:00
parent ec2df608ca
commit e2bde8d21a
14 changed files with 325 additions and 80 deletions

View file

@ -436,7 +436,7 @@ extern crate typenum;
use core::cell::UnsafeCell;
use core::marker::PhantomData;
use core::{mem, ptr};
use core::ptr;
use cortex_m::ctxt::Context;
use cortex_m::interrupt::Nr;
@ -612,7 +612,7 @@ where
/// Disables a `task`
///
/// The task won't run even if the underlying interrupt is raised
pub fn disable<T, TP>(_task: fn(T, P<TP>))
pub fn disable<T, TP>(_task: fn(T, P<TP>, C<TP>))
where
T: Context + Nr,
{
@ -624,7 +624,7 @@ where
}
/// Enables a `task`
pub fn enable<T, TP>(_task: fn(T, P<TP>))
pub fn enable<T, TP>(_task: fn(T, P<TP>, C<TP>))
where
T: Context + Nr,
{
@ -655,7 +655,7 @@ pub fn logical2hw(logical: u8) -> u8 {
}
/// Requests the execution of a `task`
pub fn request<T, TP>(_task: fn(T, P<TP>))
pub fn request<T, TP>(_task: fn(T, P<TP>, C<TP>))
where
T: Context + Nr,
{
@ -719,15 +719,6 @@ pub struct P<T> {
_marker: PhantomData<T>,
}
impl<N> P<N> {
/// Turns this priority into a ceiling
pub fn as_ceiling(&self) -> &C<N> {
unsafe {
mem::transmute(self)
}
}
}
impl<T> P<T>
where
T: Unsigned,
@ -885,11 +876,12 @@ macro_rules! tasks {
enable_tasks();
});
fn validate_signature(_: fn($crate::P0) -> !) {}
fn validate_signature(_: fn($crate::P0, $crate::C0) -> !) {}
validate_signature(idle);
let p0 = unsafe { ::core::mem::transmute::<_, P0>(()) };
idle(p0);
let c0 = unsafe { ::core::mem::transmute::<_, C0>(()) };
idle(p0, c0);
fn set_priorities() {
// NOTE(safe) this function runs in an interrupt free context
@ -931,11 +923,19 @@ macro_rules! tasks {
extern "C" fn $task(
task: ::$device::interrupt::$Interrupt
) {
fn validate_signature<N>(
_: fn(::$device::interrupt::$Interrupt,
$crate::P<N>,
$crate::C<N>)) {}
validate_signature(::$task);
let p = unsafe {
::core::mem::transmute::<_, $crate::$P>(())
};
let c = unsafe {
::core::mem::transmute(())
};
$crate::_validate_priority(&p);
::$task(task, p)
::$task(task, p, c)
}
$task