Struct OpenFileId 

pub struct OpenFileId { /* private fields */ }

Identity of a Linux open file description (struct file).

Implementations

impl OpenFileId

pub const fn new(creator: DetTid, sequence: u64) -> Self

Create an identity from the task that observed the open and its local sequence.

pub const fn new_socket(creator: DetTid, sequence: u64) -> Self

Create a socket identity from a backend-independent socket-open sequence.

pub const fn is_socket(self) -> bool

Whether this identity came from the socket-specific allocation domain.

pub fn deterministic_socket_cookie(self) -> u64

Encode the per-task socket-open sequence as a deterministic socket cookie.

Linux promises that live socket cookies are unique and that descriptor aliases for one open file description share a cookie. Detcore’s virtual task IDs and a socket-specific sequence provide those same properties for realistic descriptor counts while avoiding the kernel’s host-global cookie allocator. The sequence is independent of regular-file opens because backend loaders do not expose the same dynamic-linker file operations to Detcore.

Trait Implementations

impl Clone for OpenFileId

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OpenFileId

impl Debug for OpenFileId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for OpenFileId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for OpenFileId

impl Hash for OpenFileId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for OpenFileId

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for OpenFileId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for OpenFileId

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for OpenFileId

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for OpenFileId