Enum TlsModel 

pub enum TlsModel {
    GlobalDynamic,
    LocalDynamic,
    InitialExec,
    LocalExec,
}

How a thread-local variable is reached.

The models are ordered from the most general to the fastest, and a model may always be replaced by a more general one. The frontend picks from the storage class and the visibility, -ftls-model= overrides it, and the linker may relax a general one into a faster one when it turns out the definition is in the executable.

Variants

GlobalDynamic

Works for any variable in any object, at the cost of a call to __tls_get_addr.

LocalDynamic

One call to __tls_get_addr for several variables that are known to share a module.

InitialExec

The offset is loaded from the GOT. Needs the variable to be in a module loaded at program start rather than by dlopen.

LocalExec

The offset is a link-time constant. Only for a variable in the executable itself.

Implementations

impl TlsModel

pub const fn name(self) -> &'static str

The spelling in the textual form.

pub fn from_name(name: &str) -> Option<Self>

The model that spelling names.

pub fn all() -> impl Iterator<Item = Self>

Every model, from the most general to the fastest.

Trait Implementations

impl Clone for TlsModel

fn clone(&self) -> TlsModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TlsModel

impl Debug for TlsModel

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

Formats the value using the given formatter.

impl Default for TlsModel

fn default() -> TlsModel

Returns the “default value” for a type.

impl Eq for TlsModel

impl Hash for TlsModel

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 TlsModel

fn cmp(&self, other: &TlsModel) -> 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 TlsModel

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for TlsModel

fn partial_cmp(&self, other: &TlsModel) -> 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 StructuralPartialEq for TlsModel