rust/spacepackets
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added some auto-conversion
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This commit is contained in:
Robin Müller 2022-09-13 09:52:59 +02:00
parent d559646d80
commit 28ba4f887d
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GPG Key ID: 71B58F8A3CDFA9AC
3 changed files with 28 additions and 32 deletions
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8
src/ecss.rs
View File

@ -41,7 +41,13 @@ pub enum PusError {
NoRawData,
/// CRC16 needs to be calculated first
CrcCalculationMissing,
PacketError(ByteConversionError),
ByteConversionError(ByteConversionError),
}
impl From<ByteConversionError> for PusError {
fn from(e: ByteConversionError) -> Self {
PusError::ByteConversionError(e)
}
}
pub trait PusPacket: CcsdsPacket {

25
src/tc.rs
View File

@ -336,22 +336,21 @@ impl<'slice> PusTc<'slice> {
let tc_header_len = size_of::<zc::PusTcSecondaryHeader>();
let total_size = self.len_packed();
if total_size > slice.len() {
return Err(PusError::PacketError(ByteConversionError::ToSliceTooSmall(
SizeMissmatch {
found: slice.len(),
expected: total_size,
},
)));
return Err(ByteConversionError::ToSliceTooSmall(SizeMissmatch {
found: slice.len(),
expected: total_size,
})
.into());
}
sph_zc
.to_bytes(&mut slice[curr_idx..curr_idx + CCSDS_HEADER_LEN])
.ok_or(PusError::PacketError(ByteConversionError::ZeroCopyToError))?;
.ok_or(ByteConversionError::ZeroCopyToError)?;
curr_idx += CCSDS_HEADER_LEN;
let sec_header = zc::PusTcSecondaryHeader::try_from(self.sec_header).unwrap();
sec_header
.write_to_bytes(&mut slice[curr_idx..curr_idx + tc_header_len])
.ok_or(PusError::PacketError(ByteConversionError::ZeroCopyToError))?;
.ok_or(ByteConversionError::ZeroCopyToError)?;
curr_idx += tc_header_len;
if let Some(app_data) = self.app_data {
@ -410,9 +409,7 @@ impl<'slice> PusTc<'slice> {
let mut current_idx = 0;
let sph =
crate::zc::SpHeader::from_bytes(&slice[current_idx..current_idx + CCSDS_HEADER_LEN])
.ok_or(PusError::PacketError(
ByteConversionError::ZeroCopyFromError,
))?;
.ok_or(ByteConversionError::ZeroCopyFromError)?;
current_idx += CCSDS_HEADER_LEN;
let total_len = sph.total_len();
if raw_data_len < total_len || total_len < PUS_TC_MIN_LEN_WITHOUT_APP_DATA {
@ -421,9 +418,7 @@ impl<'slice> PusTc<'slice> {
let sec_header = zc::PusTcSecondaryHeader::from_bytes(
&slice[current_idx..current_idx + PUC_TC_SECONDARY_HEADER_LEN],
)
.ok_or(PusError::PacketError(
ByteConversionError::ZeroCopyFromError,
))?;
.ok_or(ByteConversionError::ZeroCopyFromError)?;
current_idx += PUC_TC_SECONDARY_HEADER_LEN;
let raw_data = &slice[0..total_len];
let pus_tc = PusTc {
@ -636,7 +631,7 @@ mod tests {
assert!(res.is_err());
let err = res.unwrap_err();
match err {
PusError::PacketError(err) => match err {
PusError::ByteConversionError(err) => match err {
ByteConversionError::ToSliceTooSmall(missmatch) => {
assert_eq!(missmatch.expected, pus_tc.len_packed());
assert_eq!(missmatch.found, 12);

27
src/tm.rs
View File

@ -314,23 +314,22 @@ impl<'slice> PusTm<'slice> {
let sph_zc = crate::zc::SpHeader::from(self.sp_header);
let total_size = self.len_packed();
if total_size > slice.len() {
return Err(PusError::PacketError(ByteConversionError::ToSliceTooSmall(
SizeMissmatch {
found: slice.len(),
expected: total_size,
},
)));
return Err(ByteConversionError::ToSliceTooSmall(SizeMissmatch {
found: slice.len(),
expected: total_size,
})
.into());
}
sph_zc
.to_bytes(&mut slice[curr_idx..curr_idx + CCSDS_HEADER_LEN])
.ok_or(PusError::PacketError(ByteConversionError::ZeroCopyToError))?;
.ok_or(ByteConversionError::ZeroCopyToError)?;
curr_idx += CCSDS_HEADER_LEN;
let sec_header_len = size_of::<zc::PusTmSecHeaderWithoutTimestamp>();
let sec_header = zc::PusTmSecHeaderWithoutTimestamp::try_from(self.sec_header).unwrap();
sec_header
.write_to_bytes(&mut slice[curr_idx..curr_idx + sec_header_len])
.ok_or(PusError::PacketError(ByteConversionError::ZeroCopyToError))?;
.ok_or(ByteConversionError::ZeroCopyToError)?;
curr_idx += sec_header_len;
let timestamp_len = self.sec_header.time_stamp.len();
slice[curr_idx..curr_idx + timestamp_len].copy_from_slice(self.sec_header.time_stamp);
@ -399,9 +398,7 @@ impl<'slice> PusTm<'slice> {
let mut current_idx = 0;
let sph =
crate::zc::SpHeader::from_bytes(&slice[current_idx..current_idx + CCSDS_HEADER_LEN])
.ok_or(PusError::PacketError(
ByteConversionError::ZeroCopyFromError,
))?;
.ok_or(ByteConversionError::ZeroCopyFromError)?;
current_idx += 6;
let total_len = sph.total_len();
if raw_data_len < total_len || total_len < PUS_TM_MIN_LEN_WITHOUT_SOURCE_DATA {
@ -410,9 +407,7 @@ impl<'slice> PusTm<'slice> {
let sec_header_zc = zc::PusTmSecHeaderWithoutTimestamp::from_bytes(
&slice[current_idx..current_idx + PUC_TM_MIN_SEC_HEADER_LEN],
)
.ok_or(PusError::PacketError(
ByteConversionError::ZeroCopyFromError,
))?;
.ok_or(ByteConversionError::ZeroCopyFromError)?;
current_idx += PUC_TM_MIN_SEC_HEADER_LEN;
let zc_sec_header_wrapper = zc::PusTmSecHeader {
zc_header: sec_header_zc,
@ -580,9 +575,9 @@ mod tests {
let res = pus_tm.write_to_bytes(&mut buf);
assert!(res.is_err());
let error = res.unwrap_err();
assert!(matches!(error, PusError::PacketError { .. }));
assert!(matches!(error, PusError::ByteConversionError { .. }));
match error {
PusError::PacketError(err) => match err {
PusError::ByteConversionError(err) => match err {
ByteConversionError::ToSliceTooSmall(size_missmatch) => {
assert_eq!(size_missmatch.expected, 22);
assert_eq!(size_missmatch.found, 16);