spacepackets/examples/test.rs

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Rust
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2022-06-18 22:48:51 +02:00
use postcard::{from_bytes, to_stdvec};
use serde::{Deserialize, Serialize};
use zerocopy::byteorder::{I32, U16};
use zerocopy::{AsBytes, FromBytes, NetworkEndian, Unaligned};
#[derive(AsBytes, FromBytes, Unaligned, Debug, Eq, PartialEq)]
#[repr(C, packed)]
struct ZeroCopyTest {
some_bool: u8,
some_u16: U16<NetworkEndian>,
some_i32: I32<NetworkEndian>,
some_float: [u8; 4],
}
#[derive(Serialize, Deserialize, Debug, PartialEq)]
struct PostcardTest {
some_bool: u8,
some_u16: u16,
some_i32: i32,
some_float: f32,
}
#[derive(Serialize, Deserialize, Debug, PartialEq)]
struct SliceSerTest<'slice> {
some_u8: u8,
some_u32: u32,
some_slice: &'slice [u8],
}
fn main() {
let pc_test = PostcardTest {
some_bool: true as u8,
some_u16: 0x42,
some_i32: -200,
some_float: 7.7_f32,
};
let out = to_stdvec(&pc_test).unwrap();
println!("{:#04x?}", out);
let sample_hk = ZeroCopyTest {
some_bool: true as u8,
some_u16: U16::from(0x42),
some_i32: I32::from(-200),
some_float: 7.7_f32.to_be_bytes(),
};
let mut slice = [0; 11];
sample_hk.write_to(slice.as_mut_slice());
println!("{:#04x?}", slice);
let ser_vec;
{
let test_buf = [0, 1, 2, 3];
let test_with_slice = SliceSerTest {
some_u8: 12,
some_u32: 1,
some_slice: test_buf.as_slice(),
};
ser_vec = to_stdvec(&test_with_slice).unwrap();
println!("{:#04x?}", out);
}
{
let test_deser: SliceSerTest = from_bytes(ser_vec.as_slice()).unwrap();
println!("{:?}", test_deser);
}
}