ns3_config/
config_lib_rust_config_lib_source.rs

1use fidl::unpersist;
2use fidl_cf_sc_internal_ns3config::Config as FidlConfig;
3use fuchsia_component_config::{Config as ComponentConfig, Error};
4use fuchsia_inspect::Node;
5use std::convert::TryInto;
6const EXPECTED_CHECKSUM: &[u8] = &[
7    0x1d, 0xa6, 0xb4, 0xe2, 0xe3, 0xab, 0x9c, 0x6e, 0xdb, 0x49, 0x2f, 0x8e, 0xe1, 0xff, 0xe2, 0x2b,
8    0x3d, 0xd6, 0x4c, 0xda, 0x7c, 0xd7, 0x77, 0x92, 0x12, 0xa2, 0x8d, 0xdc, 0x82, 0x57, 0x8e, 0xa1,
9];
10#[derive(Debug)]
11pub struct Config {
12    pub debug_logs: bool,
13    pub num_threads: u8,
14    pub opaque_iids: bool,
15    pub suspend_enabled: bool,
16}
17impl Config {
18    #[doc = r" Take the config startup handle and parse its contents."]
19    #[doc = r""]
20    #[doc = r" # Panics"]
21    #[doc = r""]
22    #[doc = r" If the config startup handle was already taken or if it is not valid."]
23    pub fn take_from_startup_handle() -> Self {
24        <Self as ComponentConfig>::take_from_startup_handle()
25    }
26    #[doc = r" Parse `Self` from `vmo`."]
27    pub fn from_vmo(vmo: &zx::Vmo) -> Result<Self, Error> {
28        <Self as ComponentConfig>::from_vmo(vmo)
29    }
30    #[doc = r" Parse `Self` from `bytes`."]
31    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
32        <Self as ComponentConfig>::from_bytes(bytes)
33    }
34    pub fn record_inspect(&self, inspector_node: &Node) {
35        <Self as ComponentConfig>::record_inspect(self, inspector_node)
36    }
37}
38impl ComponentConfig for Config {
39    #[doc = r" Parse `Self` from `bytes`."]
40    fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
41        let (checksum_len_bytes, bytes) = bytes.split_at_checked(2).ok_or(Error::TooFewBytes)?;
42        let checksum_len_bytes: [u8; 2] =
43            checksum_len_bytes.try_into().expect("previous call guaranteed 2 element slice");
44        let checksum_length = u16::from_le_bytes(checksum_len_bytes) as usize;
45        let (observed_checksum, bytes) =
46            bytes.split_at_checked(checksum_length).ok_or(Error::TooFewBytes)?;
47        if observed_checksum != EXPECTED_CHECKSUM {
48            return Err(Error::ChecksumMismatch {
49                expected_checksum: EXPECTED_CHECKSUM.to_vec(),
50                observed_checksum: observed_checksum.to_vec(),
51            });
52        }
53        let fidl_config: FidlConfig = unpersist(bytes).map_err(Error::Unpersist)?;
54        Ok(Self {
55            debug_logs: fidl_config.debug_logs,
56            num_threads: fidl_config.num_threads,
57            opaque_iids: fidl_config.opaque_iids,
58            suspend_enabled: fidl_config.suspend_enabled,
59        })
60    }
61    fn record_inspect(&self, inspector_node: &Node) {
62        inspector_node.record_bool("debug_logs", self.debug_logs);
63        inspector_node.record_uint("num_threads", self.num_threads as u64);
64        inspector_node.record_bool("opaque_iids", self.opaque_iids);
65        inspector_node.record_bool("suspend_enabled", self.suspend_enabled);
66    }
67}
ns3_config/config_lib_rust_config_lib_source.rs

ns3_config/
config_lib_rust_config_lib_source.rs
