element_launcher_config/
element_launcher_config_rust_config_lib_source.rs1use fidl::unpersist;
2use fidl_cf_sc_internal_elementlauncherconfig::Config as FidlConfig;
3use fuchsia_component_config::{Config as ComponentConfig, Error};
4use fuchsia_inspect::Node;
5use std::convert::TryInto;
6const EXPECTED_CHECKSUM: &[u8] = &[
7 0xb4, 0x56, 0x03, 0x83, 0xa0, 0x57, 0x78, 0x7e, 0x98, 0x97, 0xc1, 0xa8, 0xde, 0x30, 0x08, 0x64,
8 0x01, 0x5d, 0x41, 0x72, 0xd4, 0x8c, 0x8d, 0x97, 0x2f, 0x40, 0x1e, 0x25, 0xd4, 0x65, 0x8c, 0x3a,
9];
10#[derive(Debug)]
11pub struct Config {
12 pub main_element_url: String,
13}
14impl Config {
15 #[doc = r" Take the config startup handle and parse its contents."]
16 #[doc = r""]
17 #[doc = r" # Panics"]
18 #[doc = r""]
19 #[doc = r" If the config startup handle was already taken or if it is not valid."]
20 pub fn take_from_startup_handle() -> Self {
21 <Self as ComponentConfig>::take_from_startup_handle()
22 }
23 #[doc = r" Parse `Self` from `vmo`."]
24 pub fn from_vmo(vmo: &zx::Vmo) -> Result<Self, Error> {
25 <Self as ComponentConfig>::from_vmo(vmo)
26 }
27 #[doc = r" Parse `Self` from `bytes`."]
28 pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
29 <Self as ComponentConfig>::from_bytes(bytes)
30 }
31 pub fn record_inspect(&self, inspector_node: &Node) {
32 <Self as ComponentConfig>::record_inspect(self, inspector_node)
33 }
34}
35impl ComponentConfig for Config {
36 #[doc = r" Parse `Self` from `bytes`."]
37 fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
38 let (checksum_len_bytes, bytes) = bytes.split_at_checked(2).ok_or(Error::TooFewBytes)?;
39 let checksum_len_bytes: [u8; 2] =
40 checksum_len_bytes.try_into().expect("previous call guaranteed 2 element slice");
41 let checksum_length = u16::from_le_bytes(checksum_len_bytes) as usize;
42 let (observed_checksum, bytes) =
43 bytes.split_at_checked(checksum_length).ok_or(Error::TooFewBytes)?;
44 if observed_checksum != EXPECTED_CHECKSUM {
45 return Err(Error::ChecksumMismatch {
46 expected_checksum: EXPECTED_CHECKSUM.to_vec(),
47 observed_checksum: observed_checksum.to_vec(),
48 });
49 }
50 let fidl_config: FidlConfig = unpersist(bytes).map_err(Error::Unpersist)?;
51 Ok(Self { main_element_url: fidl_config.main_element_url })
52 }
53 fn record_inspect(&self, inspector_node: &Node) {
54 inspector_node.record_string("main_element_url", &self.main_element_url);
55 }
56}