Struct ProcQuery

pub struct ProcQuery { /* private fields */ }

Get information about a process

Implementations

impl ProcQuery

pub fn new() -> Self

Create a new process query

pub fn process_id(self, pid: Pid) -> Self

Set the process ID to match

One of this, ProcQuery::process_name or ProcQuery::process_id_from_child must be called before the query is usable.

pub fn process_name(self, name: impl AsRef<str>) -> Self

Set the process name to match

One of this, ProcQuery::process_id or ProcQuery::process_id_from_child must be called before the query is usable.

pub fn process_id_from_child(self, child: &Child) -> Self

Get the process ID of a child process

Either this function or process_id are required to be called before the query is usable.

pub fn expect_min_num_children(self, num_children: usize) -> Self

Require at least num_children children to have been started by the matched process for the query to succeed.

pub fn list_processes(&self) -> ProcCtlResult<Vec<ProcInfo>>

List all processes matching the current filters.

pub fn children(&self) -> ProcCtlResult<Vec<ProcInfo>>

Find the children of the selected process

Trait Implementations

impl Debug for ProcQuery

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

Formats the value using the given formatter.

impl Default for ProcQuery

fn default() -> Self

Returns the “default value” for a type.