Struct SysTime 

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

A wrapper around CFE_TIME_SysTime_t representing a specific time.

Implementations

impl SysTime

pub fn seconds(&self) -> u32

Returns the seconds component of the time.

pub fn subseconds(&self) -> u32

Returns the subseconds component of the time. The unit is 1/2^32 seconds.

pub fn now() -> Self

Returns the current spacecraft time in the mission-defined default format (TAI or UTC). This is the most common time function to use.

pub fn now_tai() -> Self

Returns the current TAI (International Atomic Time).

Not portable to all missions. TAI maintenance in flight is not guaranteed — prefer now when possible.

pub fn now_utc() -> Self

Returns the current UTC (Coordinated Universal Time).

Not portable to all missions. UTC can jump backward on leap second events — prefer now when possible.

pub fn now_met() -> Self

Returns the current Mission Elapsed Time (MET).

pub fn now_stcf() -> SysTime

Returns the current value of the spacecraft time correction factor (STCF).

pub fn to_sc(&self) -> Self

Converts a specified MET into Spacecraft Time (UTC or TAI).

pub fn to_ccsds(self) -> [u8; 6]

Converts a CFE SysTime into the 6-byte CCSDS Day Segmented time format.

This is a crucial utility function for creating telemetry.

Format:

• Bytes 0-3: Seconds since epoch (Big Endian)
• Bytes 4-5: Subseconds, representing fractions of a second in 1/2^16 increments (Big Endian)

Trait Implementations

impl Add for SysTime

fn add(self, other: Self) -> Self::Output

Adds two time values.

type Output = SysTime

The resulting type after applying the + operator.

impl Clone for SysTime

fn clone(&self) -> SysTime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SysTime

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

Formats the value using the given formatter.

impl Display for SysTime

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

Formats the time as a yyyy-ddd-hh:mm:ss.xxxxx string.

impl From<Duration> for SysTime

fn from(duration: Duration) -> Self

Converts to this type from the input type.

impl From<SysTime> for Duration

fn from(time: SysTime) -> Self

Converts to this type from the input type.

impl Ord for SysTime

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.

impl PartialEq for SysTime

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

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 Sub for SysTime

fn sub(self, other: Self) -> Self::Output

Subtracts other from self.

type Output = SysTime

The resulting type after applying the - operator.

impl Copy for SysTime

impl Eq for SysTime