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#[derive(Debug, Clone)]
pub struct Creator {
base_time: Option<std::time::Instant>,
}
impl Creator {
pub fn new() -> Self {
Default::default()
}
pub fn frame(
&mut self,
cur_time: std::time::Instant,
data: &[u8],
) -> crate::frame::Frame {
let base_time = if let Some(base_time) = &self.base_time {
base_time
} else {
self.base_time = Some(cur_time);
self.base_time.as_ref().unwrap()
};
crate::frame::Frame {
time: cur_time - *base_time,
data: data.to_vec(),
}
}
}
impl Default for Creator {
fn default() -> Self {
Self { base_time: None }
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_basic() {
let mut creator = Creator::new();
let base_time = std::time::Instant::now();
let zero_frame: Vec<u8> =
std::convert::TryFrom::try_from(creator.frame(base_time, b""))
.unwrap();
assert_eq!(zero_frame, vec![0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
let data_frame: Vec<u8> =
std::convert::TryFrom::try_from(creator.frame(
base_time + std::time::Duration::new(38, 123_456_000),
b"\x1b[2Jfoobar",
))
.unwrap();
assert_eq!(
data_frame,
vec![
38, 0, 0, 0, 64, 226, 1, 0, 10, 0, 0, 0, 27, 91, 50, 74, 102,
111, 111, 98, 97, 114,
],
);
}
}
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