Enum ScanTime 

pub enum ScanTime {
    Short,
    Long,
}

How long the radio listens for before it answers.

The radio counts samples rather than time, and only these two durations have a count, so they are the only ones it takes.

Variants

Short

A short check, long enough for the channel to be plainly busy or plainly clear.

Long

A long check, for a band whose rules ask for one.

Implementations

impl ScanTime

pub const fn micros(&self) -> u16

How long this check listens, in microseconds.

Returns

The duration, which is also how long a caller waits before asking for the answer.

Examples

use pamoja_radios::sx1302::lbt::ScanTime;

assert_eq!(ScanTime::Short.micros(), 128);
assert_eq!(ScanTime::Long.micros(), 5000);

pub const fn samples(&self) -> u16

How many samples the radio takes to fill that duration.

Returns

The count the radio is programmed with. It is not the duration divided by anything a caller can work out, so it is carried rather than computed.

Examples

use pamoja_radios::sx1302::lbt::ScanTime;

assert_eq!(ScanTime::Short.samples(), 24);
assert_eq!(ScanTime::Long.samples(), 715);

pub const fn of_micros(micros: u16) -> Option<ScanTime>

Reads a duration a caller asked for.

Arguments

• micros - the duration in microseconds.

Returns

The check that takes that long, or None for a duration the radio has no count for. A near miss is refused rather than rounded, because a check shorter than the rules ask for is worse than no check at all.

Examples

use pamoja_radios::sx1302::lbt::ScanTime;

assert_eq!(ScanTime::of_micros(128), Some(ScanTime::Short));
assert_eq!(ScanTime::of_micros(5000), Some(ScanTime::Long));
assert_eq!(ScanTime::of_micros(4999), None, "a near miss is not rounded");

Trait Implementations

impl Clone for ScanTime

fn clone(&self) -> ScanTime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ScanTime

impl Debug for ScanTime

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

Formats the value using the given formatter.

impl Eq for ScanTime

impl PartialEq for ScanTime

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ScanTime