Struct ProcessGroup

pub struct ProcessGroup { /* private fields */ }

Available on Unix and crate feature process-group and crate feature std only.

Wrapper which sets the process group of a Command.

This wrapper is only available on Unix.

It sets the process group of a Command, either to itself as the leader of a new group, or to an existing one by its PGID. See setpgid(2).

Process groups direct signals to all members of the group, and also serve to control job placement in foreground or background, among other actions.

This wrapper provides a child wrapper: ProcessGroupChild.

Implementations

impl ProcessGroup

pub fn leader() -> Self

Create a process group wrapper setting up a new process group with the command as the leader.

pub fn attach_to(leader: u32) -> Self

Create a process group wrapper attaching the command to an existing process group ID.

Trait Implementations

impl Clone for ProcessGroup

fn clone(&self) -> ProcessGroup

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl CommandWrapper for ProcessGroup

fn pre_spawn( &mut self, command: &mut Command, _core: &CommandWrap, ) -> Result<()>

Called before the command is spawned, to mutate it as needed.

fn wrap_child( &mut self, inner: Box<dyn ChildWrapper>, _core: &CommandWrap, ) -> Result<Box<dyn ChildWrapper>>

Called to wrap a child into this command wrapper’s child wrapper.

fn extend(&mut self, _other: Box<dyn CommandWrapper>)

Called on a first instance if a second of the same type is added.

fn post_spawn( &mut self, _command: &mut Command, _child: &mut Child, _core: &CommandWrap, ) -> Result<()>

Called after spawn, but before the child is wrapped.

impl Debug for ProcessGroup

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

Formats the value using the given formatter.

impl Copy for ProcessGroup