diff options
Diffstat (limited to 'src/raw_guard.rs')
-rw-r--r-- | src/raw_guard.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/raw_guard.rs b/src/raw_guard.rs new file mode 100644 index 0000000..909ba9e --- /dev/null +++ b/src/raw_guard.rs @@ -0,0 +1,45 @@ +use std::os::unix::io::AsRawFd as _; + +pub struct RawGuard { + termios: nix::sys::termios::Termios, + cleaned_up: bool, +} + +impl RawGuard { + #[allow(clippy::new_without_default)] + pub fn new() -> Self { + let stdin = std::io::stdin().as_raw_fd(); + let termios = nix::sys::termios::tcgetattr(stdin).unwrap(); + let mut termios_raw = termios.clone(); + nix::sys::termios::cfmakeraw(&mut termios_raw); + nix::sys::termios::tcsetattr( + stdin, + nix::sys::termios::SetArg::TCSANOW, + &termios_raw, + ) + .unwrap(); + Self { + termios, + cleaned_up: false, + } + } + + pub fn cleanup(&mut self) { + if self.cleaned_up { + return; + } + self.cleaned_up = true; + let stdin = std::io::stdin().as_raw_fd(); + let _ = nix::sys::termios::tcsetattr( + stdin, + nix::sys::termios::SetArg::TCSANOW, + &self.termios, + ); + } +} + +impl Drop for RawGuard { + fn drop(&mut self) { + self.cleanup(); + } +} |