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use prelude::v1::*;
use shim::*;
use base::FreeRtosTickType;
pub trait FreeRtosTimeUnits {
#[inline]
fn get_tick_period_ms() -> u32;
#[inline]
fn get_max_wait() -> u32;
}
#[derive(Copy, Clone, Default)]
pub struct FreeRtosTimeUnitsShimmed;
impl FreeRtosTimeUnits for FreeRtosTimeUnitsShimmed {
#[inline]
fn get_tick_period_ms() -> u32 {
unsafe { freertos_rs_get_portTICK_PERIOD_MS() }
}
#[inline]
fn get_max_wait() -> u32 {
unsafe { freertos_rs_max_wait() }
}
}
pub trait DurationTicks : Copy + Clone {
fn to_ticks(&self) -> FreeRtosTickType;
}
pub type Duration = DurationImpl<FreeRtosTimeUnitsShimmed>;
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub struct DurationImpl<T> {
ticks: u32,
_time_units: PhantomData<T>
}
impl<T> DurationImpl<T> where T: FreeRtosTimeUnits + Copy {
pub fn ms(milliseconds: u32) -> Self {
Self::ticks(milliseconds / T::get_tick_period_ms())
}
pub fn ticks(ticks: u32) -> Self {
DurationImpl { ticks: ticks, _time_units: PhantomData }
}
pub fn infinite() -> Self {
Self::ticks(T::get_max_wait())
}
pub fn zero() -> Self {
Self::ticks(0)
}
pub fn eps() -> Self {
Self::ticks(1)
}
pub fn to_ms(&self) -> u32 {
self.ticks * T::get_tick_period_ms()
}
}
impl<T> DurationTicks for DurationImpl<T> where T: FreeRtosTimeUnits + Copy {
fn to_ticks(&self) -> FreeRtosTickType {
self.ticks
}
}