94 lines
2.8 KiB
Rust
94 lines
2.8 KiB
Rust
//! All PUS support modules
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//!
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//! Currenty includes:
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//!
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//! 1. PUS Verification Service 1 module inside [verification]. Requires [alloc] support.
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use downcast_rs::{impl_downcast, Downcast};
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use spacepackets::ecss::PusError;
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use spacepackets::time::TimestampError;
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use spacepackets::tm::PusTm;
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use spacepackets::{ByteConversionError, SizeMissmatch};
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pub mod event;
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pub mod event_man;
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pub mod verification;
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/// Generic error type which is also able to wrap a user send error with the user supplied type E.
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#[derive(Debug, Clone)]
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pub enum EcssTmError<E> {
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/// Errors related to sending the verification telemetry to a TM recipient
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SendError(E),
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/// Errors related to the time stamp format of the telemetry
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TimestampError(TimestampError),
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/// Errors related to byte conversion, for example insufficient buffer size for given data
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ByteConversionError(ByteConversionError),
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/// Errors related to PUS packet format
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PusError(PusError),
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}
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impl<E> From<PusError> for EcssTmError<E> {
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fn from(e: PusError) -> Self {
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EcssTmError::PusError(e)
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}
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}
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impl<E> From<ByteConversionError> for EcssTmError<E> {
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fn from(e: ByteConversionError) -> Self {
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EcssTmError::ByteConversionError(e)
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}
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}
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/// Generic trait for a user supplied sender object.
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///
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/// This sender object is responsible for sending telemetry to a TM sink. The [Downcast] trait
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/// is implemented to allow passing the sender as a boxed trait object and still retrieve the
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/// concrete type at a later point.
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pub trait EcssTmSender: Downcast + Send {
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type Error;
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fn send_tm(&mut self, tm: PusTm) -> Result<(), EcssTmError<Self::Error>>;
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}
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impl_downcast!(EcssTmSender assoc Error);
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pub(crate) fn source_buffer_large_enough<E>(cap: usize, len: usize) -> Result<(), EcssTmError<E>> {
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if len > cap {
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return Err(EcssTmError::ByteConversionError(
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ByteConversionError::ToSliceTooSmall(SizeMissmatch {
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found: cap,
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expected: len,
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}),
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));
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}
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Ok(())
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}
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#[cfg(test)]
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pub(crate) mod tests {
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use spacepackets::tm::{PusTm, PusTmSecondaryHeaderT};
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use spacepackets::CcsdsPacket;
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#[derive(Debug, Eq, PartialEq)]
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pub(crate) struct CommonTmInfo {
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pub subservice: u8,
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pub apid: u16,
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pub msg_counter: u16,
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pub dest_id: u16,
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pub time_stamp: [u8; 7],
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}
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impl CommonTmInfo {
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pub fn new_from_tm(tm: &PusTm) -> Self {
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let mut time_stamp = [0; 7];
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time_stamp.clone_from_slice(&tm.time_stamp()[0..7]);
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Self {
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subservice: tm.subservice(),
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apid: tm.apid(),
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msg_counter: tm.msg_counter(),
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dest_id: tm.dest_id(),
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time_stamp,
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}
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}
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}
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}
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