lasprs 0.6.7

Library for Acoustic Signal Processing (Rust edition, with optional Python bindings via pyo3)
Documentation 
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use anyhow::Result;
use crossbeam::channel::{unbounded, Receiver, TryRecvError};
use lasprs::daq::{StreamMgr, StreamStatus, StreamType};
use lasprs::siggen::{Siggen, SweepType};
use std::io;
use std::{thread, time};
// use

/// Spawns a thread and waits for a single line, pushes it to the receiver and  returns
fn stdin_channel_wait_for_return() -> Receiver<String> {
    let (tx, rx) = unbounded();
    thread::spawn(move || {
        let mut buffer = String::new();
        io::stdin().read_line(&mut buffer).unwrap();
        // Do not care whether we succeed here.
        let _ = tx.send(buffer);
    });
    rx
}
fn sleep(millis: u64) {
    let duration = time::Duration::from_millis(millis);
    thread::sleep(duration);
}
fn main() -> Result<()> {
    let mut smgr = StreamMgr::new();

    let stdin_channel = stdin_channel_wait_for_return();

    println!("Creating signal generator...");
    // let mut siggen = Siggen::newSine(44100., 2, 432.)?;
    let mut siggen = Siggen::newSweep(
        44100.,
        1,      // nchannels: usize,
        100.,   // fl: Flt,
        10000., //fu: Flt,
        1.0,    // sweep_time: Flt,
        // 1.0,    //quiet_time: Flt,
        0.,    //quiet_time: Flt,
        // SweepType::ForwardLin//sweep_type: SweepType,
        // SweepType::ForwardLog, //sweep_type: SweepType,
        SweepType::ContinuousLog, //sweep_type: SweepType,
    )?;

    // Some things that can be done
    // siggen.setDCOffset(&[0.1, 0.]);

    // Reduce all gains a bit...
    siggen.setAllGains(0.1);

    println!("Starting stream...");
    smgr.startDefaultOutputStream()?;

    // Apply signal generator
    smgr.setSiggen(siggen)?;

    println!("Press <enter> key to quit...");
    'infy: loop {
        match stdin_channel.try_recv() {
            Ok(_key) => break 'infy,
            Err(TryRecvError::Empty) => {}
            Err(TryRecvError::Disconnected) => panic!("Channel disconnected"),
        }
        sleep(100);
        match smgr.getStatus(StreamType::Output) {
            StreamStatus::NotRunning {} => {
                println!("Stream is not running?");
                break 'infy;
            }
            StreamStatus::Running {} => {}
            StreamStatus::Error { e } => {
                println!("Stream error: {}", e);
                break 'infy;
            }
        }
    }

    Ok(())
}