Struct UpcallTarget

#[repr(C)]
pub struct UpcallTarget {
    pub self_address: usize,
    pub super_address: usize,
    pub super_stack: usize,
    pub super_stack_size: usize,
    pub super_thread_ptr: usize,
    pub super_ctx: ObjID,
    pub options: [UpcallOptions; 3],
}

Information for handling an upcall, per-thread. By default, a thread starts with all these fields initialized to zero, and the mode set to UpcallMode::Abort.

Fields

self_address: usize

Address to jump to when handling via a call to the same context.

super_address: usize

Address to jump to when handling via a call to supervisor context.

super_stack: usize

Address of supervisor stack to use, when switching to supervisor context.

super_stack_size: usize

Size of the super stack.

super_thread_ptr: usize

Value to use for stack pointer, when switching to supervisor context.

super_ctx: ObjID

Supervisor context to use, when switching to supervisor context.

options: [UpcallOptions; 3]

Per-upcall options.

Implementations

impl UpcallTarget

pub fn new( self_address: Option<unsafe extern "C-unwind" fn(_: *mut UpcallFrame, _: *const UpcallData) -> !>, super_address: Option<unsafe extern "C-unwind" fn(_: *mut UpcallFrame, _: *const UpcallData) -> !>, super_stack: usize, super_stack_size: usize, super_thread_ptr: usize, super_ctx: ObjID, options: [UpcallOptions; 3], ) -> Self

Construct a new upcall target.

Trait Implementations

impl Clone for UpcallTarget

fn clone(&self) -> UpcallTarget

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for UpcallTarget

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

Formats the value using the given formatter.

impl Ord for UpcallTarget

fn cmp(&self, other: &UpcallTarget) -> 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.

impl PartialEq for UpcallTarget

fn eq(&self, other: &UpcallTarget) -> 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 PartialOrd for UpcallTarget

fn partial_cmp(&self, other: &UpcallTarget) -> 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 Copy for UpcallTarget

impl Eq for UpcallTarget

impl StructuralPartialEq for UpcallTarget