sag_config/
sag_config_rust_config_lib_source.rs

1use fidl::unpersist;
2use fidl_cf_sc_internal_sagconfig::Config as FidlConfig;
3use fuchsia_component_config::{Config as ComponentConfig, Error};
4use fuchsia_inspect::Node;
5use std::convert::TryInto;
6const EXPECTED_CHECKSUM: &[u8] = &[
7    0x52, 0x91, 0xd4, 0xcd, 0x2e, 0x16, 0x73, 0xcf, 0x05, 0x4b, 0xe7, 0xe6, 0x94, 0xb5, 0xaa, 0xb5,
8    0x71, 0x6d, 0xc9, 0x5d, 0xef, 0xc1, 0x29, 0x44, 0xf5, 0x54, 0x60, 0x97, 0x22, 0x61, 0xc4, 0xe6,
9];
10const EXPECTED_CHECKSUM_LENGTH: [u8; 2] = (EXPECTED_CHECKSUM.len() as u16).to_le_bytes();
11#[derive(Debug)]
12pub struct Config {
13    pub max_active_wake_leases_to_log: u32,
14    pub suspend_resume_stuck_warning_timeout: u32,
15    pub use_suspender: bool,
16    pub wait_for_suspending_token: bool,
17}
18impl Config {
19    #[doc = r" Take the config startup handle and parse its contents."]
20    #[doc = r""]
21    #[doc = r" # Panics"]
22    #[doc = r""]
23    #[doc = r" If the config startup handle was already taken or if it is not valid."]
24    pub fn take_from_startup_handle() -> Self {
25        <Self as ComponentConfig>::take_from_startup_handle()
26    }
27    #[doc = r" Parse `Self` from `vmo`."]
28    pub fn from_vmo(vmo: &zx::Vmo) -> Result<Self, Error> {
29        <Self as ComponentConfig>::from_vmo(vmo)
30    }
31    #[doc = r" Parse `Self` from `bytes`."]
32    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
33        <Self as ComponentConfig>::from_bytes(bytes)
34    }
35    pub fn record_inspect(&self, inspector_node: &Node) {
36        <Self as ComponentConfig>::record_inspect(self, inspector_node)
37    }
38}
39impl ComponentConfig for Config {
40    #[doc = r" Parse `Self` from `bytes`."]
41    fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
42        let (checksum_len_bytes, bytes) = bytes.split_at_checked(2).ok_or(Error::TooFewBytes)?;
43        let checksum_len_bytes: [u8; 2] =
44            checksum_len_bytes.try_into().expect("previous call guaranteed 2 element slice");
45        let checksum_length = u16::from_le_bytes(checksum_len_bytes) as usize;
46        let (observed_checksum, bytes) =
47            bytes.split_at_checked(checksum_length).ok_or(Error::TooFewBytes)?;
48        if observed_checksum != EXPECTED_CHECKSUM {
49            return Err(Error::ChecksumMismatch {
50                expected_checksum: EXPECTED_CHECKSUM.to_vec(),
51                observed_checksum: observed_checksum.to_vec(),
52            });
53        }
54        let fidl_config: FidlConfig = unpersist(bytes).map_err(Error::Unpersist)?;
55        Ok(Self {
56            max_active_wake_leases_to_log: fidl_config.max_active_wake_leases_to_log,
57            suspend_resume_stuck_warning_timeout: fidl_config.suspend_resume_stuck_warning_timeout,
58            use_suspender: fidl_config.use_suspender,
59            wait_for_suspending_token: fidl_config.wait_for_suspending_token,
60        })
61    }
62    fn to_bytes(&self) -> Result<Vec<u8>, Error> {
63        let fidl_config = FidlConfig {
64            max_active_wake_leases_to_log: self.max_active_wake_leases_to_log.clone(),
65            suspend_resume_stuck_warning_timeout: self.suspend_resume_stuck_warning_timeout.clone(),
66            use_suspender: self.use_suspender.clone(),
67            wait_for_suspending_token: self.wait_for_suspending_token.clone(),
68        };
69        let mut fidl_bytes = fidl::persist(&fidl_config).map_err(Error::Persist)?;
70        let mut bytes = Vec::with_capacity(
71            EXPECTED_CHECKSUM_LENGTH.len() + EXPECTED_CHECKSUM.len() + fidl_bytes.len(),
72        );
73        bytes.extend_from_slice(&EXPECTED_CHECKSUM_LENGTH);
74        bytes.extend_from_slice(EXPECTED_CHECKSUM);
75        bytes.append(&mut fidl_bytes);
76        Ok(bytes)
77    }
78    fn record_inspect(&self, inspector_node: &Node) {
79        inspector_node.record_uint(
80            "max_active_wake_leases_to_log",
81            self.max_active_wake_leases_to_log as u64,
82        );
83        inspector_node.record_uint(
84            "suspend_resume_stuck_warning_timeout",
85            self.suspend_resume_stuck_warning_timeout as u64,
86        );
87        inspector_node.record_bool("use_suspender", self.use_suspender);
88        inspector_node.record_bool("wait_for_suspending_token", self.wait_for_suspending_token);
89    }
90}
sag_config/sag_config_rust_config_lib_source.rs

sag_config/
sag_config_rust_config_lib_source.rs
