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Update tty to account for random dropouts

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Blizzard Finnegan 2023-05-16 08:47:13 -04:00
parent 824deb0a69
commit b28cf91c90
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GPG key ID: F40F3F6CAE325FBA
1 changed files with 12 additions and 2 deletions
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14
src/tty.rs
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@ -74,7 +74,8 @@ const RESPONSES:[(&str,Response);10] = [
];
pub struct TTY{
tty: Box<dyn SerialPort>
tty: Box<dyn SerialPort>,
failed_read_count: u8
}
impl std::fmt::Debug for TTY{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result{
@ -87,7 +88,8 @@ impl std::fmt::Debug for TTY{
impl TTY{
pub fn new(serial_location:&str) -> Self{
TTY {
tty: serialport::new(serial_location,BAUD_RATE).timeout(SERIAL_READ_TIMEOUT).open().unwrap()
tty: serialport::new(serial_location,BAUD_RATE).timeout(SERIAL_READ_TIMEOUT).open().expect("Unable to open serial connnection!"),
failed_read_count: u8
}
}
@ -108,6 +110,7 @@ impl TTY{
for (string,enum_value) in RESPONSES{
if read_line.contains(string){
log::debug!("Successful read of {:?} from tty {}, which matches pattern {:?}",read_line,self.tty.name().unwrap_or("unknown shell".to_string()),enum_value);
self.failed_read_count = 0;
return enum_value;
}
}
@ -115,6 +118,13 @@ impl TTY{
}
else {
log::debug!("Read an empty string. Possible read error.");
self.failed_read_count += 1;
if self.failed_read_count >= 15{
self.failed_read_count == 0;
let tty_location = self.tty.name().expect("Unable to read tty name!");
self.tty = serialport::new(tty_location,BAUD_RATE).timeout(SERIAL_READ_TIMEOUT).open().expect("Unable to open serial connection!");
return self.read_from_device(_break_char);
}
return Response::Empty;
};
}