tekhsi_rs 0.1.1

High-performance client for Tektronix TekHSI enabled oscilloscopes
Documentation 
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pub(crate) struct Backoff {
    attempt: u32,
    max_attempts: u32,
    base_ms: u64,
    max_exponent: u32,
}

impl Backoff {
    pub(crate) fn new(max_attempts: u32, base_ms: u64, max_exponent: u32) -> Self {
        Self {
            attempt: 0,
            max_attempts,
            base_ms,
            max_exponent,
        }
    }

    pub(crate) fn next_delay_ms(&mut self) -> Option<u64> {
        self.attempt = self.attempt.saturating_add(1);
        if self.attempt > self.max_attempts {
            return None;
        }
        let exponent = self.attempt.min(self.max_exponent);
        Some(self.base_ms.saturating_mul(1u64 << exponent))
    }

    pub async fn sleep_next(&mut self) -> bool {
        let Some(delay_ms) = self.next_delay_ms() else {
            return false;
        };
        tokio::time::sleep(std::time::Duration::from_millis(delay_ms)).await;
        true
    }

    pub(crate) fn reset(&mut self) {
        self.attempt = 0;
    }
}