proc_tree/
types.rs

1//! Data types for the process tree.
2
3/// Process info for a single PID.
4#[derive(Clone, Debug, PartialEq, Eq)]
5#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
6pub struct ProcessInfo {
7    /// Command name (from `/proc/{pid}/comm`).
8    cmd: String,
9    /// Username (from UID lookup via `/etc/passwd`).
10    user: String,
11    /// Parent PID.
12    ppid: u32,
13    /// Thread group ID.
14    tgid: u32,
15    /// Process start time in nanoseconds since boot.
16    /// Used for PID reuse detection.
17    start_time_ns: u64,
18}
19
20impl ProcessInfo {
21    /// Create a new `ProcessInfo`.
22    pub fn new(cmd: String, user: String, ppid: u32, tgid: u32, start_time_ns: u64) -> Self {
23        Self {
24            cmd,
25            user,
26            ppid,
27            tgid,
28            start_time_ns,
29        }
30    }
31
32    /// Command name (from `/proc/{pid}/comm`).
33    pub fn cmd(&self) -> &str {
34        &self.cmd
35    }
36
37    /// Username (from UID lookup via `/etc/passwd`).
38    pub fn user(&self) -> &str {
39        &self.user
40    }
41
42    /// Parent PID.
43    pub fn ppid(&self) -> u32 {
44        self.ppid
45    }
46
47    /// Thread group ID.
48    pub fn tgid(&self) -> u32 {
49        self.tgid
50    }
51
52    /// Process start time in nanoseconds since boot.
53    /// Used for PID reuse detection.
54    pub fn start_time_ns(&self) -> u64 {
55        self.start_time_ns
56    }
57}
proc_tree/types.rs

proc_tree/
types.rs
