spacepackets/examples/test.rs

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);
    }
}