pkg_cache_config/
config_lib_rust_config_lib_source.rs

1use fidl::unpersist;
2use fidl_cf_sc_internal_pkgcacheconfig::Config as FidlConfig;
3use fuchsia_component_config::{Config as ComponentConfig, Error};
4use fuchsia_inspect::Node;
5use std::convert::TryInto;
6const EXPECTED_CHECKSUM: &[u8] = &[
7    0x41, 0x26, 0x76, 0x01, 0x93, 0x7c, 0xdd, 0x34, 0x06, 0x37, 0x35, 0x30, 0x2d, 0x98, 0xb9, 0xea,
8    0xed, 0xa9, 0x3e, 0x7f, 0x3d, 0x4f, 0xb5, 0xb5, 0x11, 0x2c, 0x32, 0xf6, 0x45, 0x3b, 0xe3, 0x3d,
9];
10#[derive(Debug)]
11pub struct Config {
12    pub all_packages_executable: bool,
13    pub enable_upgradable_packages: bool,
14    pub use_system_image: 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 {
54            all_packages_executable: fidl_config.all_packages_executable,
55            enable_upgradable_packages: fidl_config.enable_upgradable_packages,
56            use_system_image: fidl_config.use_system_image,
57        })
58    }
59    fn record_inspect(&self, inspector_node: &Node) {
60        inspector_node.record_bool("all_packages_executable", self.all_packages_executable);
61        inspector_node.record_bool("enable_upgradable_packages", self.enable_upgradable_packages);
62        inspector_node.record_bool("use_system_image", self.use_system_image);
63    }
64}
pkg_cache_config/config_lib_rust_config_lib_source.rs

pkg_cache_config/
config_lib_rust_config_lib_source.rs
