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triage_detect_config/
triage-detect-config_rust_config_lib_source.rs

1use fidl::unpersist;
2use fidl_cf_sc_internal_triagedetectconfig::Config as FidlConfig;
3use fuchsia_component_config::{Config as ComponentConfig, Error};
4use fuchsia_inspect::Node;
5use std::convert::TryInto;
6const EXPECTED_CHECKSUM: &[u8] = &[
7    0x95, 0xdf, 0xc8, 0xef, 0xf2, 0x38, 0x46, 0xa6, 0xd1, 0x34, 0x38, 0xc3, 0xdb, 0xde, 0xff, 0x88,
8    0x0d, 0x4c, 0xdf, 0xc9, 0x16, 0xb7, 0xc3, 0xb5, 0x06, 0x06, 0xa0, 0xd3, 0x46, 0x84, 0x86, 0x45,
9];
10const EXPECTED_CHECKSUM_LENGTH: [u8; 2] = (EXPECTED_CHECKSUM.len() as u16).to_le_bytes();
11#[derive(Debug)]
12pub struct Config {
13    pub check_every: String,
14    pub test_only: bool,
15}
16impl Config {
17    #[doc = r" Take the config startup handle and parse its contents."]
18    #[doc = r""]
19    #[doc = r" # Panics"]
20    #[doc = r""]
21    #[doc = r" If the config startup handle was already taken or if it is not valid."]
22    pub fn take_from_startup_handle() -> Self {
23        <Self as ComponentConfig>::take_from_startup_handle()
24    }
25    #[doc = r" Parse `Self` from `vmo`."]
26    pub fn from_vmo(vmo: &zx::Vmo) -> Result<Self, Error> {
27        <Self as ComponentConfig>::from_vmo(vmo)
28    }
29    #[doc = r" Parse `Self` from `bytes`."]
30    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
31        <Self as ComponentConfig>::from_bytes(bytes)
32    }
33    pub fn record_inspect(&self, inspector_node: &Node) {
34        <Self as ComponentConfig>::record_inspect(self, inspector_node)
35    }
36}
37impl ComponentConfig for Config {
38    #[doc = r" Parse `Self` from `bytes`."]
39    fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
40        let (checksum_len_bytes, bytes) = bytes.split_at_checked(2).ok_or(Error::TooFewBytes)?;
41        let checksum_len_bytes: [u8; 2] =
42            checksum_len_bytes.try_into().expect("previous call guaranteed 2 element slice");
43        let checksum_length = u16::from_le_bytes(checksum_len_bytes) as usize;
44        let (observed_checksum, bytes) =
45            bytes.split_at_checked(checksum_length).ok_or(Error::TooFewBytes)?;
46        if observed_checksum != EXPECTED_CHECKSUM {
47            return Err(Error::ChecksumMismatch {
48                expected_checksum: EXPECTED_CHECKSUM.to_vec(),
49                observed_checksum: observed_checksum.to_vec(),
50            });
51        }
52        let fidl_config: FidlConfig = unpersist(bytes).map_err(Error::Unpersist)?;
53        Ok(Self { check_every: fidl_config.check_every, test_only: fidl_config.test_only })
54    }
55    fn to_bytes(&self) -> Result<Vec<u8>, Error> {
56        let fidl_config =
57            FidlConfig { check_every: self.check_every.clone(), test_only: self.test_only.clone() };
58        let mut fidl_bytes = fidl::persist(&fidl_config).map_err(Error::Persist)?;
59        let mut bytes = Vec::with_capacity(
60            EXPECTED_CHECKSUM_LENGTH.len() + EXPECTED_CHECKSUM.len() + fidl_bytes.len(),
61        );
62        bytes.extend_from_slice(&EXPECTED_CHECKSUM_LENGTH);
63        bytes.extend_from_slice(EXPECTED_CHECKSUM);
64        bytes.append(&mut fidl_bytes);
65        Ok(bytes)
66    }
67    fn record_inspect(&self, inspector_node: &Node) {
68        inspector_node.record_string("check_every", &self.check_every);
69        inspector_node.record_bool("test_only", self.test_only);
70    }
71}