Struct HolderInfo 

#[non_exhaustive]
pub struct HolderInfo {
    pub pid: u32,
    pub cmdline: String,
}

Identity of a process holding an advisory flock. Used by error messages in both LLC-coordination and cache-entry paths, plus the ktstr locks observational subcommand.

Cmdline is read from /proc/{pid}/cmdline, NUL-separated by the kernel, lossy-UTF-8 decoded, \0 → space, and truncated to roughly 100 chars (the holder::CMDLINE_MAX_CHARS cap) with a … marker so a log line remains single-line. A missing / racing / permission-denied /proc/{pid}/cmdline produces "<cmdline unavailable>" so the pid still surfaces with diagnostic value.

#[non_exhaustive] so future fields (start_time, fd_count, etc.) don’t break external match arms or struct literals. Derives Serialize (with snake_case field renaming for JSON schema stability) for the ktstr locks --json surface; no Deserialize because this type is produced-only.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

pid: u32

PID of the flock holder as reported by /proc/locks.

cmdline: String

Truncated /proc/{pid}/cmdline of the holder process.

Trait Implementations

impl Clone for HolderInfo

fn clone(&self) -> HolderInfo

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HolderInfo

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Serialize for HolderInfo

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.