rust/sat-rs
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Add Small Event Support #18

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muellerr merged 5 commits from mueller/continue-event-pus-manager into main 2022-10-23 18:41:14 +02:00
Conversation 0 Commits 5 Files Changed 4 +414 -151
4 changed files with 414 additions and 151 deletions
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Showing only changes of commit dd2929eb98 - Show all commits

11
fsrc-core/src/event_man.rs
View File

@ -52,7 +52,7 @@ impl<E> EventManager<E, Event> {
event: Event,
dest: impl EventListener<Event, Error = E> + 'static,
) {
self.update_listeners(ListenerType::Single(event.raw_as_u32()), dest);
self.update_listeners(ListenerType::Single(event.raw_as_largest_type()), dest);
}
pub fn subscribe_group(
@ -68,9 +68,9 @@ impl<E> EventManager<E, EventSmall> {
pub fn subscribe_single(
&mut self,
event: EventSmall,
dest: impl EventListener<Event, Error = E> + 'static,
dest: impl EventListener<EventSmall, Error = E> + 'static,
) {
self.update_listeners(ListenerType::Single(event.raw_as_u32()), dest);
self.update_listeners(ListenerType::Single(event.raw_as_largest_type()), dest);
}
pub fn subscribe_group(
@ -81,6 +81,7 @@ impl<E> EventManager<E, EventSmall> {
self.update_listeners(ListenerType::Group(group_id.into()), dest);
}
}
impl<E, Provider: EventProvider> EventManager<E, Provider> {
fn update_listeners(
&mut self,
@ -123,11 +124,11 @@ impl<E, Provider: EventProvider> EventManager<E, Provider> {
}
};
if let Some(event) = self.event_receiver.receive() {
let single_key = ListenerType::Single(event.raw_as_u32());
let single_key = ListenerType::Single(event.raw_as_largest_type());
if self.listeners.contains_key(&single_key) {
send_handler(event, self.listeners.get_mut(&single_key).unwrap());
}
let group_key = ListenerType::Group(event.group_id_as_u16());
let group_key = ListenerType::Group(event.group_id_as_largest_type());
if self.listeners.contains_key(&group_key) {
send_handler(event, self.listeners.get_mut(&group_key).unwrap());
}

502
fsrc-core/src/events.rs
View File

@ -1,16 +1,14 @@
//! Event support module
use spacepackets::ecss::EcssEnumeration;
use core::hash::Hash;
use spacepackets::ecss::{EcssEnumeration, ToBeBytes};
use spacepackets::{ByteConversionError, SizeMissmatch};
use std::marker::PhantomData;
pub type EventRaw = u32;
pub type SmallEventRaw = u16;
pub type GroupId = u16;
pub type UniqueId = u16;
pub type GroupIdSmall = u8;
pub type UniqueIdSmall = u8;
/// Using a type definition allows to change this to u64 in the future more easily
pub type LargestEventRaw = u32;
/// Using a type definition allows to change this to u32 in the future more easily
pub type LargestGroupIdRaw = u16;
#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)]
pub enum Severity {
@ -20,7 +18,7 @@ pub enum Severity {
HIGH = 3,
}
pub trait EventProvider: PartialEq + Eq + Copy + Clone {
pub trait EventProvider: PartialEq + Eq + Copy + Clone + Hash {
type Raw;
type GroupId;
type UniqueId;
@ -30,8 +28,8 @@ pub trait EventProvider: PartialEq + Eq + Copy + Clone {
fn group_id(&self) -> Self::GroupId;
fn unique_id(&self) -> Self::UniqueId;
fn raw_as_u32(&self) -> u32;
fn group_id_as_u16(&self) -> u16;
fn raw_as_largest_type(&self) -> LargestEventRaw;
fn group_id_as_largest_type(&self) -> LargestGroupIdRaw;
}
impl TryFrom<u8> for Severity {
@ -49,10 +47,111 @@ impl TryFrom<u8> for Severity {
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
pub struct Event {
pub struct EventBase<RAW, GID, UID> {
severity: Severity,
group_id: u16,
unique_id: u16,
group_id: GID,
unique_id: UID,
phantom: PhantomData<RAW>,
}
impl<RAW: ToBeBytes, GID, UID> EventBase<RAW, GID, UID> {
fn write_to_bytes(
&self,
raw: RAW,
buf: &mut [u8],
width: usize,
) -> Result<(), ByteConversionError> {
if buf.len() < width {
return Err(ByteConversionError::ToSliceTooSmall(SizeMissmatch {
found: buf.len(),
expected: width,
}));
}
buf.copy_from_slice(raw.to_be_bytes().as_ref());
Ok(())
}
}
impl EventBase<u32, u16, u16> {
#[inline]
fn raw(&self) -> u32 {
(((self.severity as u32) << 30) | ((self.group_id as u32) << 16) | self.unique_id as u32)
as u32
}
}
impl EventBase<u16, u8, u8> {
#[inline]
fn raw(&self) -> u16 {
(((self.severity as u16) << 14) as u16
| ((self.group_id as u16) << 8) as u16
| self.unique_id as u16) as u16
}
}
impl<RAW, GID, UID> EventBase<RAW, GID, UID> {
#[inline]
pub fn severity(&self) -> Severity {
self.severity
}
}
impl<RAW, GID> EventBase<RAW, GID, u16> {
#[inline]
pub fn unique_id(&self) -> u16 {
self.unique_id
}
}
impl<RAW, GID> EventBase<RAW, GID, u8> {
#[inline]
pub fn unique_id(&self) -> u8 {
self.unique_id
}
}
impl<RAW, UID> EventBase<RAW, u16, UID> {
#[inline]
pub fn group_id(&self) -> u16 {
self.group_id
}
}
impl<RAW, UID> EventBase<RAW, u8, UID> {
#[inline]
pub fn group_id(&self) -> u8 {
self.group_id
}
}
macro_rules! event_provider_impl {
() => {
#[inline]
fn raw(&self) -> Self::Raw {
self.base.raw()
}
/// Retrieve the severity of an event. Returns None if that severity bit field of the raw event
/// ID is invalid
#[inline]
fn severity(&self) -> Severity {
self.base.severity()
}
#[inline]
fn group_id(&self) -> Self::GroupId {
self.base.group_id()
}
#[inline]
fn unique_id(&self) -> Self::UniqueId {
self.base.unique_id()
}
};
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
pub struct Event {
base: EventBase<u32, u16, u16>,
}
impl EventProvider for Event {
@ -60,31 +159,13 @@ impl EventProvider for Event {
type GroupId = u16;
type UniqueId = u16;
fn raw(&self) -> Self::Raw {
(((self.severity as Self::Raw) << 30) as Self::Raw
| ((self.group_id as Self::Raw) << 16) as Self::Raw
| self.unique_id as u32) as Self::Raw
}
event_provider_impl!();
/// Retrieve the severity of an event. Returns None if that severity bit field of the raw event
/// ID is invalid
fn severity(&self) -> Severity {
self.severity
}
fn group_id(&self) -> Self::GroupId {
self.group_id
}
fn unique_id(&self) -> Self::UniqueId {
self.unique_id
}
fn raw_as_u32(&self) -> u32 {
fn raw_as_largest_type(&self) -> LargestEventRaw {
self.raw()
}
fn group_id_as_u16(&self) -> u16 {
fn group_id_as_largest_type(&self) -> LargestGroupIdRaw {
self.group_id()
}
}
@ -110,24 +191,44 @@ impl Event {
return None;
}
Some(Self {
severity,
group_id,
unique_id,
base: EventBase {
severity,
group_id,
unique_id,
phantom: PhantomData,
},
})
}
/// Const version of [new], but panics on invalid input which is invalid group ID
/// values
pub const fn const_new(
severity: Severity,
group_id: <Self as EventProvider>::GroupId,
unique_id: <Self as EventProvider>::UniqueId,
) -> Self {
if group_id > (2u16.pow(14) - 1) {
panic!("Group ID too large");
}
Self {
base: EventBase {
severity,
group_id,
unique_id,
phantom: PhantomData,
},
}
}
}
impl TryFrom<u32> for Event {
type Error = ();
fn try_from(raw: u32) -> Result<Self, Self::Error> {
let severity: Option<Severity> = (((raw >> 30) & 0b11) as u8).try_into().ok();
if severity.is_none() {
return Err(());
}
impl From<u32> for Event {
fn from(raw: u32) -> Self {
// Severity conversion from u8 should never fail
let severity = Severity::try_from(((raw >> 30) & 0b11) as u8).unwrap();
let group_id = ((raw >> 16) & 0x3FFF) as u16;
let unique_id = (raw & 0xFFFF) as u16;
Event::new(severity.unwrap(), group_id, unique_id).ok_or(())
// Sanitized input, should never fail
Self::const_new(severity, group_id, unique_id)
}
}
@ -137,56 +238,13 @@ impl EcssEnumeration for Event {
}
fn write_to_bytes(&self, buf: &mut [u8]) -> Result<(), ByteConversionError> {
if buf.len() < self.byte_width() {
return Err(ByteConversionError::ToSliceTooSmall(SizeMissmatch {
found: buf.len(),
expected: self.byte_width(),
}));
}
buf.copy_from_slice(self.raw().to_be_bytes().as_slice());
Ok(())
self.base.write_to_bytes(self.raw(), buf, self.byte_width())
}
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
pub struct EventSmall {
severity: Severity,
group_id: u8,
unique_id: u8,
}
impl EventProvider for EventSmall {
type Raw = u16;
type GroupId = u8;
type UniqueId = u8;
fn raw(&self) -> Self::Raw {
(((self.severity as Self::Raw) << 14) as Self::Raw
| ((self.group_id as Self::Raw) << 8) as Self::Raw
| self.unique_id as Self::Raw) as Self::Raw
}
/// Retrieve the severity of an event. Returns None if that severity bit field of the raw event
/// ID is invalid
fn severity(&self) -> Severity {
self.severity
}
fn group_id(&self) -> Self::GroupId {
self.group_id.into()
}
fn unique_id(&self) -> Self::UniqueId {
self.unique_id.into()
}
fn raw_as_u32(&self) -> u32 {
self.raw().into()
}
fn group_id_as_u16(&self) -> u16 {
self.group_id().into()
}
base: EventBase<u16, u8, u8>,
}
impl EventSmall {
@ -210,48 +268,244 @@ impl EventSmall {
return None;
}
Some(Self {
severity,
group_id,
unique_id,
base: EventBase {
severity,
group_id,
unique_id,
phantom: Default::default(),
},
})
}
pub const fn const_new(
severity: Severity,
group_id: <Self as EventProvider>::GroupId,
unique_id: <Self as EventProvider>::UniqueId,
) -> Self {
if group_id > (2u8.pow(6) - 1) {
panic!("Group ID too large");
}
Self {
base: EventBase {
severity,
group_id,
unique_id,
phantom: PhantomData,
},
}
}
}
impl EventProvider for EventSmall {
type Raw = u16;
type GroupId = u8;
type UniqueId = u8;
event_provider_impl!();
fn raw_as_largest_type(&self) -> LargestEventRaw {
self.raw().into()
}
fn group_id_as_largest_type(&self) -> LargestGroupIdRaw {
self.group_id().into()
}
}
impl EcssEnumeration for EventSmall {
fn pfc(&self) -> u8 {
16
}
fn write_to_bytes(&self, buf: &mut [u8]) -> Result<(), ByteConversionError> {
self.base.write_to_bytes(self.raw(), buf, self.byte_width())
}
}
impl From<u16> for EventSmall {
fn from(raw: <Self as EventProvider>::Raw) -> Self {
let severity = Severity::try_from(((raw >> 14) & 0b11) as u8).unwrap();
let group_id = ((raw >> 8) & 0x3F) as u8;
let unique_id = (raw & 0xFF) as u8;
// Sanitized input, new call should never fail
Self::const_new(severity, group_id, unique_id)
}
}
#[cfg(test)]
mod tests {
use super::Event;
use crate::events::{EventProvider, Severity};
use crate::events::{EventProvider, EventSmall, Severity};
use spacepackets::ecss::EcssEnumeration;
use spacepackets::ByteConversionError;
use std::mem::size_of;
fn assert_size<T>(_: T, val: usize) {
assert_eq!(size_of::<T>(), val);
}
const INFO_EVENT: Event = Event::const_new(Severity::INFO, 0, 0);
const INFO_EVENT_SMALL: EventSmall = EventSmall::const_new(Severity::INFO, 0, 0);
const HIGH_SEV_EVENT: Event = Event::const_new(Severity::HIGH, 0x3FFF, 0xFFFF);
const HIGH_SEV_EVENT_SMALL: EventSmall = EventSmall::const_new(Severity::HIGH, 0x3F, 0xff);
#[test]
fn test_events() {
let event = Event::new(Severity::INFO, 0, 0).unwrap();
assert_eq!(event.severity(), Severity::INFO);
assert_eq!(event.unique_id(), 0);
assert_eq!(event.group_id(), 0);
fn test_normal_from_raw_conversion() {
let conv_from_raw = Event::from(INFO_EVENT.raw());
assert_eq!(conv_from_raw, INFO_EVENT);
}
let raw_event = event.raw();
#[test]
fn test_small_from_raw_conversion() {
let conv_from_raw = EventSmall::from(INFO_EVENT_SMALL.raw());
assert_eq!(conv_from_raw, INFO_EVENT_SMALL);
}
#[test]
fn verify_normal_size() {
assert_size(INFO_EVENT.raw(), 4)
}
#[test]
fn verify_small_size() {
assert_size(INFO_EVENT_SMALL.raw(), 2)
}
#[test]
fn test_normal_event_getters() {
assert_eq!(INFO_EVENT.severity(), Severity::INFO);
assert_eq!(INFO_EVENT.unique_id(), 0);
assert_eq!(INFO_EVENT.group_id(), 0);
let raw_event = INFO_EVENT.raw();
assert_eq!(raw_event, 0x00000000);
let conv_from_raw = Event::try_from(raw_event);
assert!(conv_from_raw.is_ok());
let opt_event = conv_from_raw.ok();
assert!(opt_event.is_some());
let event = opt_event.unwrap();
assert_eq!(event.severity(), Severity::INFO);
assert_eq!(event.unique_id(), 0);
assert_eq!(event.group_id(), 0);
}
let event = Event::new(Severity::HIGH, 0x3FFF, 0xFFFF).unwrap();
assert_eq!(event.severity(), Severity::HIGH);
assert_eq!(event.group_id(), 0x3FFF);
assert_eq!(event.unique_id(), 0xFFFF);
let raw_event = event.raw();
#[test]
fn test_small_event_getters() {
assert_eq!(INFO_EVENT_SMALL.severity(), Severity::INFO);
assert_eq!(INFO_EVENT_SMALL.unique_id(), 0);
assert_eq!(INFO_EVENT_SMALL.group_id(), 0);
let raw_event = INFO_EVENT_SMALL.raw();
assert_eq!(raw_event, 0x00000000);
}
#[test]
fn all_ones_event_regular() {
assert_eq!(HIGH_SEV_EVENT.severity(), Severity::HIGH);
assert_eq!(HIGH_SEV_EVENT.group_id(), 0x3FFF);
assert_eq!(HIGH_SEV_EVENT.unique_id(), 0xFFFF);
let raw_event = HIGH_SEV_EVENT.raw();
assert_eq!(raw_event, 0xFFFFFFFF);
let conv_from_raw = Event::try_from(raw_event);
assert!(conv_from_raw.is_ok());
let opt_event = conv_from_raw.ok();
assert!(opt_event.is_some());
let event = opt_event.unwrap();
assert_eq!(event.severity(), Severity::HIGH);
assert_eq!(event.group_id(), 0x3FFF);
assert_eq!(event.unique_id(), 0xFFFF);
}
#[test]
fn all_ones_event_small() {
assert_eq!(HIGH_SEV_EVENT_SMALL.severity(), Severity::HIGH);
assert_eq!(HIGH_SEV_EVENT_SMALL.group_id(), 0x3F);
assert_eq!(HIGH_SEV_EVENT_SMALL.unique_id(), 0xFF);
let raw_event = HIGH_SEV_EVENT_SMALL.raw();
assert_eq!(raw_event, 0xFFFF);
}
#[test]
fn invalid_group_id_normal() {
assert!(Event::new(Severity::MEDIUM, 2_u16.pow(14), 0).is_none());
}
#[test]
fn invalid_group_id_small() {
assert!(EventSmall::new(Severity::MEDIUM, 2_u8.pow(6), 0).is_none());
}
#[test]
fn regular_new() {
assert_eq!(
Event::new(Severity::INFO, 0, 0).expect("Creating regular event failed"),
INFO_EVENT
);
}
#[test]
fn small_new() {
assert_eq!(
EventSmall::new(Severity::INFO, 0, 0).expect("Creating regular event failed"),
INFO_EVENT_SMALL
);
}
#[test]
fn as_largest_type() {
let event_raw = HIGH_SEV_EVENT.raw_as_largest_type();
assert_size(event_raw, 4);
assert_eq!(event_raw, 0xFFFFFFFF);
}
#[test]
fn as_largest_type_for_small_event() {
let event_raw = HIGH_SEV_EVENT_SMALL.raw_as_largest_type();
assert_size(event_raw, 4);
assert_eq!(event_raw, 0xFFFF);
}
#[test]
fn as_largest_group_id() {
let group_id = HIGH_SEV_EVENT.group_id_as_largest_type();
assert_size(group_id, 2);
assert_eq!(group_id, 0x3FFF);
}
#[test]
fn as_largest_group_id_small_event() {
let group_id = HIGH_SEV_EVENT_SMALL.group_id_as_largest_type();
assert_size(group_id, 2);
assert_eq!(group_id, 0x3F);
}
#[test]
fn write_to_buf() {
let mut buf: [u8; 4] = [0; 4];
assert!(HIGH_SEV_EVENT.write_to_bytes(&mut buf).is_ok());
let val_from_raw = u32::from_be_bytes(buf);
assert_eq!(val_from_raw, 0xFFFFFFFF);
}
#[test]
fn write_to_buf_small() {
let mut buf: [u8; 2] = [0; 2];
assert!(HIGH_SEV_EVENT_SMALL.write_to_bytes(&mut buf).is_ok());
let val_from_raw = u16::from_be_bytes(buf);
assert_eq!(val_from_raw, 0xFFFF);
}
#[test]
fn write_to_buf_insufficient_buf() {
let mut buf: [u8; 3] = [0; 3];
let err = HIGH_SEV_EVENT.write_to_bytes(&mut buf);
assert!(err.is_err());
let err = err.unwrap_err();
if let ByteConversionError::ToSliceTooSmall(missmatch) = err {
assert_eq!(missmatch.expected, 4);
assert_eq!(missmatch.found, 3);
}
}
#[test]
fn write_to_buf_small_insufficient_buf() {
let mut buf: [u8; 1] = [0; 1];
let err = HIGH_SEV_EVENT_SMALL.write_to_bytes(&mut buf);
assert!(err.is_err());
let err = err.unwrap_err();
if let ByteConversionError::ToSliceTooSmall(missmatch) = err {
assert_eq!(missmatch.expected, 2);
assert_eq!(missmatch.found, 1);
}
}
#[test]
fn severity_from_invalid_raw_val() {
let invalid = 0xFF;
assert!(Severity::try_from(invalid).is_err());
let invalid = Severity::HIGH as u8 + 1;
assert!(Severity::try_from(invalid).is_err());
}
}

50
fsrc-core/src/pus/event_man.rs
View File

@ -1,4 +1,4 @@
use crate::events::Event;
use crate::events::EventProvider;
use hashbrown::HashSet;
#[cfg(feature = "heapless")]
@ -14,12 +14,12 @@ pub use heapless_mod::*;
/// structure to track disabled events. A more primitive and embedded friendly
/// solution could track this information in a static or pre-allocated list which contains
/// the disabled events.
pub trait PusEventMgmtBackendProvider {
pub trait PusEventMgmtBackendProvider<Provider: EventProvider> {
type Error;
fn event_enabled(&self, event: &Event) -> bool;
fn enable_event_reporting(&mut self, event: &Event) -> Result<bool, Self::Error>;
fn disable_event_reporting(&mut self, event: &Event) -> Result<bool, Self::Error>;
fn event_enabled(&self, event: &Provider) -> bool;
fn enable_event_reporting(&mut self, event: &Provider) -> Result<bool, Self::Error>;
fn disable_event_reporting(&mut self, event: &Provider) -> Result<bool, Self::Error>;
}
/// Default backend provider which uses a hash set as the event reporting status container
@ -28,21 +28,23 @@ pub trait PusEventMgmtBackendProvider {
/// This provider is a good option for host systems or larger embedded systems where
/// the expected occasional memory allocation performed by the [HashSet] is not an issue.
#[derive(Default)]
pub struct DefaultPusMgmtBackendProvider {
disabled: HashSet<Event>,
pub struct DefaultPusMgmtBackendProvider<Provider: EventProvider> {
disabled: HashSet<Provider>,
}
impl PusEventMgmtBackendProvider for DefaultPusMgmtBackendProvider {
impl<Provider: EventProvider> PusEventMgmtBackendProvider<Provider>
for DefaultPusMgmtBackendProvider<Provider>
{
type Error = ();
fn event_enabled(&self, event: &Event) -> bool {
fn event_enabled(&self, event: &Provider) -> bool {
!self.disabled.contains(event)
}
fn enable_event_reporting(&mut self, event: &Event) -> Result<bool, Self::Error> {
fn enable_event_reporting(&mut self, event: &Provider) -> Result<bool, Self::Error> {
Ok(self.disabled.remove(event))
}
fn disable_event_reporting(&mut self, event: &Event) -> Result<bool, Self::Error> {
fn disable_event_reporting(&mut self, event: &Provider) -> Result<bool, Self::Error> {
Ok(self.disabled.insert(*event))
}
}
@ -50,28 +52,34 @@ impl PusEventMgmtBackendProvider for DefaultPusMgmtBackendProvider {
#[cfg(feature = "heapless")]
pub mod heapless_mod {
use super::*;
use crate::events::{EventProvider, EventRaw};
use crate::events::{EventProvider, LargestEventRaw};
use std::marker::PhantomData;
// TODO: After a new version of heapless is released which uses hash32 version 0.3, try using
// regular Event type again.
#[derive(Default)]
pub struct HeaplessPusMgmtBckendProvider<const N: usize> {
disabled: heapless::FnvIndexSet<EventRaw, N>,
pub struct HeaplessPusMgmtBckendProvider<const N: usize, Provider: EventProvider> {
disabled: heapless::FnvIndexSet<LargestEventRaw, N>,
phantom: PhantomData<Provider>,
}
impl<const N: usize> PusEventMgmtBackendProvider for HeaplessPusMgmtBckendProvider<N> {
impl<const N: usize, Provider: EventProvider> PusEventMgmtBackendProvider<Provider>
for HeaplessPusMgmtBckendProvider<N, Provider>
{
type Error = ();
fn event_enabled(&self, event: &Event) -> bool {
self.disabled.contains(&event.raw())
fn event_enabled(&self, event: &Provider) -> bool {
self.disabled.contains(&event.raw_as_largest_type())
}
fn enable_event_reporting(&mut self, event: &Event) -> Result<bool, Self::Error> {
self.disabled.insert(event.raw()).map_err(|_| ())
fn enable_event_reporting(&mut self, event: &Provider) -> Result<bool, Self::Error> {
self.disabled
.insert(event.raw_as_largest_type())
.map_err(|_| ())
}
fn disable_event_reporting(&mut self, event: &Event) -> Result<bool, Self::Error> {
Ok(self.disabled.remove(&event.raw()))
fn disable_event_reporting(&mut self, event: &Provider) -> Result<bool, Self::Error> {
Ok(self.disabled.remove(&event.raw_as_largest_type()))
}
}
}

2
spacepackets

@ -1 +1 @@
Subproject commit 603f688ac3e914de13037fd22ac544e125b6305b
Subproject commit a2673c98707ecbbabb9535bef607025c92b54724