sat-rs/fsrc-core/src/tmtc/pus_distrib.rs

55 lines
1.8 KiB
Rust

use crate::error::FsrcErrorHandler;
use crate::tmtc::{ReceivesCcsdsTc, ReceivesPusTc, ReceivesTc};
use spacepackets::ecss::{PusError, PusPacket};
use spacepackets::tc::PusTc;
use spacepackets::{CcsdsPacket, PacketError, SpHeader};
pub trait PusServiceProvider {
fn get_apid(&self, service: u8) -> u16;
fn get_service_handler(&self, service: u8, subservice: u8) -> Box<dyn ReceivesPusTc>;
}
pub struct PusDistributor {
_error_handler: Box<dyn FsrcErrorHandler>,
service_provider: Box<dyn PusServiceProvider>,
}
impl ReceivesTc for PusDistributor {
fn pass_tc(&mut self, tm_raw: &[u8]) {
// Convert to ccsds and call pass_ccsds
let sp_header = SpHeader::from_raw_slice(tm_raw).unwrap();
self.pass_ccsds(&sp_header, tm_raw).unwrap();
}
}
impl ReceivesCcsdsTc for PusDistributor {
fn pass_ccsds(&mut self, _header: &SpHeader, tm_raw: &[u8]) -> Result<(), PacketError> {
// TODO: Better error handling
let (tc, _) = match PusTc::new_from_raw_slice(tm_raw) {
Ok(tuple) => tuple,
Err(e) => {
match e {
PusError::VersionNotSupported(_) => {}
PusError::IncorrectCrc(_) => {}
PusError::RawDataTooShort(_) => {}
PusError::NoRawData => {}
PusError::CrcCalculationMissing => {}
PusError::PacketError(_) => {}
}
return Ok(());
}
};
let mut srv_provider = self
.service_provider
.get_service_handler(tc.service(), tc.subservice());
let apid = self.service_provider.get_apid(tc.service());
if apid != tc.apid() {
// TODO: Dedicated error
return Ok(());
}
srv_provider.pass_pus(&tc).unwrap();
Ok(())
}
}