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remove std usages
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This commit is contained in:
Robin Müller 2023-12-01 14:34:16 +01:00
parent e2ae959d03
commit 1f1aa68485
Signed by: muellerr
GPG Key ID: A649FB78196E3849
1 changed files with 10 additions and 8 deletions
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18
src/cfdp/pdu/nak.rs
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@ -2,13 +2,15 @@ use crate::{
cfdp::{CrcFlag, Direction, LargeFileFlag},
ByteConversionError,
};
use core::marker::PhantomData;
use core::{marker::PhantomData, mem::size_of};
use super::{
add_pdu_crc, generic_length_checks_pdu_deserialization, CfdpPdu, FileDirectiveType, PduError,
PduHeader, WritablePduPacket,
};
/// Helper type to encapsulate both normal file size segment requests and large file size segment
/// requests.
#[derive(Debug, PartialEq, Eq, Clone)]
pub enum SegmentRequests<'a> {
U32Pairs(&'a [(u32, u32)]),
@ -246,7 +248,7 @@ impl WritablePduPacket for NakPduCreator<'_> {
pub struct SegmentRequestIter<'a, T> {
seq_req_raw: &'a [u8],
current_idx: usize,
phantom: std::marker::PhantomData<T>,
phantom: core::marker::PhantomData<T>,
}
pub trait SegReqFromBytes {
@ -273,7 +275,7 @@ where
fn next(&mut self) -> Option<Self::Item> {
let value = self.next_at_offset(self.current_idx);
self.current_idx += 2 * std::mem::size_of::<T>();
self.current_idx += 2 * size_of::<T>();
value
}
}
@ -314,7 +316,7 @@ where
if pairs.is_empty() && self.seq_req_raw.is_empty() {
return true;
}
let size = std::mem::size_of::<T>();
let size = size_of::<T>();
if pairs.len() * 2 * size != self.seq_req_raw.len() {
return false;
}
@ -332,16 +334,16 @@ where
impl<T: SegReqFromBytes> SegmentRequestIter<'_, T> {
fn next_at_offset(&self, mut offset: usize) -> Option<(T, T)> {
if offset + std::mem::size_of::<T>() * 2 > self.seq_req_raw.len() {
if offset + size_of::<T>() * 2 > self.seq_req_raw.len() {
return None;
}
let start_offset =
T::from_bytes(&self.seq_req_raw[offset..offset + std::mem::size_of::<T>()]);
offset += std::mem::size_of::<T>();
T::from_bytes(&self.seq_req_raw[offset..offset + size_of::<T>()]);
offset += size_of::<T>();
let end_offset =
T::from_bytes(&self.seq_req_raw[offset..offset + std::mem::size_of::<T>()]);
T::from_bytes(&self.seq_req_raw[offset..offset + size_of::<T>()]);
Some((start_offset, end_offset))
}
}