Enum Status 

#[repr(C)]
pub enum Status {
    Ok = 0,
    Invalid = 1,
    Denied = 2,
    NoEntity = 3,
    Busy = 4,
    AlreadyMapped = 5,
    Critical = 6,
    Timeout = 7,
    Again = 8,
    Intr = 9,
    Deadlk = 10,
}

Sentry syscall return values

Note: the kernel also hold, at kernel level, another value denoted ‘NonSense’. This value must never be returned to userspace. This is why this value do not exist here.

Such a return should raise a security exception. All syscalls that can’t set they return code synchronously (e.g. IPC), MUST use this value as default one

Variants

Ok = 0

Successful result, the kernel has terminated its task with no error

Invalid = 1

At least one parameter is not valid (not allowed or not found)

Denied = 2

The requested action is not allowed for caller, or the resource is not owned

NoEntity = 3

The requested resource do not exist

Busy = 4

The requested resource is in a state that do now allow the current call

AlreadyMapped = 5

The requested resource is already mapped

Critical = 6

Critical (mostly security-related) unexpected event

Timeout = 7

The requested resource did not respond or the call has reached its maximum wait time

Again = 8

The requested resource is not here yet, come back later

Intr = 9

The call has been interrupted sooner than expected. Used for blocking calls

Deadlk = 10

The requested resource can’t be manipulated without generating a dead lock

Trait Implementations

impl Clone for Status

fn clone(&self) -> Status

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Status

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

Formats the value using the given formatter.

impl From<u32> for Status

u32 to Status converter, required to support register encoded value

fn from(status_int: u32) -> Status

Converts to this type from the input type.

impl PartialEq for Status

fn eq(&self, other: &Status) -> 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 Copy for Status

impl StructuralPartialEq for Status