Struct SysResult 

pub struct SysResult(/* private fields */);

Represents the results of a SafaOS syscall, either an ErrorStatus or an Ok usize value smaller than or equal to isize::MAX.

Implementations

impl SysResult

pub const fn err(err: ErrorStatus) -> Self

Converts an err into a SysResult.

pub const fn into_result(self) -> Result<usize, ErrorStatus>

Turns a SysResult into result.

pub const fn try_from_result( result: Result<usize, ErrorStatus>, ) -> Result<Self, ()>

Attempts to convert a result into SysResult, returns an error if the value is Ok(x) and x is larger than isize::MAX

pub const fn ok(value: usize) -> Self

Converts an Ok value [value] into Self, it is expected to not be larger than isize::MAX or it panicks.

pub const fn try_ok(value: usize) -> Result<Self, ()>

Tries to convert an Ok value [value] into SysResult, return an error if the value is larger than isize::MAX.

pub const fn as_isize(&self) -> isize

Converts a SysResult into an isize, negative value is for an error, use Self::into_result instead.

pub const fn from_isize(isize: isize) -> Self

Converts an isize into SysResult

Safety

Perefectly safe as this type doesn’t guarantee the contained error value (negative value) is valid.

Trait Implementations

impl Clone for SysResult

fn clone(&self) -> SysResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SysResult

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

Formats the value using the given formatter.

impl From<ErrorStatus> for SysResult

fn from(value: ErrorStatus) -> Self

Converts to this type from the input type.

impl From<Result<usize, ErrorStatus>> for SysResult

fn from(value: Result<usize, ErrorStatus>) -> Self

Panicks if the results is an Ok value larger than isize::MAX

impl From<SysResult> for Result<usize, ErrorStatus>

fn from(value: SysResult) -> Self

Converts to this type from the input type.

impl From<isize> for SysResult

fn from(value: isize) -> Self

Converts to this type from the input type.

impl Into<isize> for SysResult

fn into(self) -> isize

Converts this type into the (usually inferred) input type.

impl PartialEq for SysResult

fn eq(&self, other: &SysResult) -> 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 SysResult

impl Eq for SysResult

impl StructuralPartialEq for SysResult