Enum SpawnFdPolicy 

pub enum SpawnFdPolicy {
    CloexecOnly,
    CloseFrom3,
    Allowlist(Vec<RawFd>),
}

Explicit file-descriptor inheritance policy for spawned children.

Variants

CloexecOnly

Inherit descriptors according to their existing FD_CLOEXEC flags.

CloseFrom3

For the fork backend, close every descriptor >= 3 before execve, except Core-required pipe descriptors.

Allowlist(Vec<RawFd>)

For the fork backend, close every descriptor >= 3 before execve, except Core-required pipe descriptors and the listed descriptors.

Core does not close allowlisted descriptors, but their existing FD_CLOEXEC state still applies. Callers that want an allowlisted descriptor to survive execve must clear FD_CLOEXEC before spawning.

Trait Implementations

impl Clone for SpawnFdPolicy

fn clone(&self) -> SpawnFdPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpawnFdPolicy

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

Formats the value using the given formatter.

impl Default for SpawnFdPolicy

fn default() -> SpawnFdPolicy

Returns the “default value” for a type.

impl Eq for SpawnFdPolicy

impl PartialEq for SpawnFdPolicy

fn eq(&self, other: &SpawnFdPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SpawnFdPolicy