Enum twizzler_abi::syscall::ThreadControl

#[repr(u64)]
pub enum ThreadControl {
    Exit,
    Yield,
    SetTls,
    GetTls,
    SetUpcall,
    GetUpcall,
    ReadRegister,
    WriteRegister,
    SendMessage,
    ChangeState,
    SetTrapState,
    GetTrapState,
    SetPriority,
    GetPriority,
    SetAffinity,
    GetAffinity,
    ResumeFromUpcall,
    GetSelfId,
}

Possible Thread Control operations

Variants

Exit

Exit the thread. arg1 and arg2 should be code and location respectively, where code contains a 64-bit value to write into *location, followed by the kernel performing a thread-wake event on the memory word at location. If location is null, the write and thread-wake do not occur.

Yield

Yield the thread’s CPU time now. The actual effect of this is unspecified, but it acts as a hint to the kernel that this thread does not need to run right now. The kernel, of course, is free to ignore this hint.

SetTls

Set thread’s TLS pointer

GetTls

Get the thread’s TLS pointer.

SetUpcall

Set the thread’s upcall pointer (child threads in the same virtual address space will inherit).

GetUpcall

Get the upcall pointer.

ReadRegister

Read a register from the thread’s CPU state. The thread must be suspended.

WriteRegister

Write a value to a register in the thread’s CPU state. The thread must be suspended.

SendMessage

Send a user-defined async or sync event to the thread.

ChangeState

Change the thread’s state. Allowed transitions are: running -> suspended suspended -> running running -> exited

SetTrapState

Set the Trap State for the thread.

GetTrapState

Get the Trap State for the thread.

SetPriority

Set a thread’s priority. Threads require special permission to increase their priority.

GetPriority

Get a thread’s priority.

SetAffinity

Set a thread’s affinity.

GetAffinity

Get a thread’s affinity.

ResumeFromUpcall

Resume from an upcall.

GetSelfId

Get the repr ID of the calling thread.

Trait Implementations

impl Debug for ThreadControl

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

Formats the value using the given formatter.

impl From<ThreadControl> for u64

fn from(enum_value: ThreadControl) -> Self

Converts to this type from the input type.

impl From<u64> for ThreadControl

fn from(number: u64) -> Self

Converts to this type from the input type.

impl FromPrimitive for ThreadControl

type Primitive = u64

fn from_primitive(number: Self::Primitive) -> Self

impl Ord for ThreadControl

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<ThreadControl> for ThreadControl

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd<ThreadControl> for ThreadControl

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Eq for ThreadControl

impl StructuralEq for ThreadControl

impl StructuralPartialEq for ThreadControl