sat-rs/satrs/src/queue.rs

131 lines
3.8 KiB
Rust

use core::fmt::{Display, Formatter};
#[cfg(feature = "std")]
use std::error::Error;
#[cfg(feature = "std")]
use std::sync::mpsc;
use crate::ComponentId;
/// Generic channel ID type.
pub type ChannelId = u32;
/// Generic error type for sending something via a message queue.
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum GenericSendError {
RxDisconnected,
QueueFull(Option<u32>),
TargetDoesNotExist(ComponentId),
}
impl Display for GenericSendError {
fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
match self {
GenericSendError::RxDisconnected => {
write!(f, "rx side has disconnected")
}
GenericSendError::QueueFull(max_cap) => {
write!(f, "queue with max capacity of {max_cap:?} is full")
}
GenericSendError::TargetDoesNotExist(target) => {
write!(f, "target queue with ID {target} does not exist")
}
}
}
}
#[cfg(feature = "std")]
impl Error for GenericSendError {}
/// Generic error type for sending something via a message queue.
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum GenericReceiveError {
Empty,
TxDisconnected(Option<ComponentId>),
}
impl Display for GenericReceiveError {
fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
match self {
Self::TxDisconnected(channel_id) => {
write!(f, "tx side with id {channel_id:?} has disconnected")
}
Self::Empty => {
write!(f, "nothing to receive")
}
}
}
}
#[cfg(feature = "std")]
impl Error for GenericReceiveError {}
#[derive(Debug, Clone)]
pub enum GenericTargetedMessagingError {
Send(GenericSendError),
Receive(GenericReceiveError),
}
impl From<GenericSendError> for GenericTargetedMessagingError {
fn from(value: GenericSendError) -> Self {
Self::Send(value)
}
}
impl From<GenericReceiveError> for GenericTargetedMessagingError {
fn from(value: GenericReceiveError) -> Self {
Self::Receive(value)
}
}
impl Display for GenericTargetedMessagingError {
fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
match self {
Self::Send(err) => write!(f, "generic targeted messaging error: {}", err),
Self::Receive(err) => write!(f, "generic targeted messaging error: {}", err),
}
}
}
#[cfg(feature = "std")]
impl Error for GenericTargetedMessagingError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
match self {
GenericTargetedMessagingError::Send(send) => Some(send),
GenericTargetedMessagingError::Receive(receive) => Some(receive),
}
}
}
#[cfg(feature = "std")]
impl<T> From<mpsc::SendError<T>> for GenericSendError {
fn from(_: mpsc::SendError<T>) -> Self {
GenericSendError::RxDisconnected
}
}
#[cfg(feature = "std")]
impl<T> From<mpsc::TrySendError<T>> for GenericSendError {
fn from(err: mpsc::TrySendError<T>) -> Self {
match err {
mpsc::TrySendError::Full(_) => GenericSendError::QueueFull(None),
mpsc::TrySendError::Disconnected(_) => GenericSendError::RxDisconnected,
}
}
}
#[cfg(feature = "crossbeam")]
impl<T> From<crossbeam_channel::SendError<T>> for GenericSendError {
fn from(_: crossbeam_channel::SendError<T>) -> Self {
GenericSendError::RxDisconnected
}
}
#[cfg(feature = "crossbeam")]
impl<T> From<crossbeam_channel::TrySendError<T>> for GenericSendError {
fn from(err: crossbeam_channel::TrySendError<T>) -> Self {
match err {
crossbeam_channel::TrySendError::Full(_) => GenericSendError::QueueFull(None),
crossbeam_channel::TrySendError::Disconnected(_) => GenericSendError::RxDisconnected,
}
}
}