#[cfg(any(target_os = "linux", target_os = "macos", windows))]
mod registry;
#[cfg(not(any(target_os = "linux", target_os = "macos", windows)))]
#[path = "unsupported.rs"]
mod registry;
#[cfg(any(target_os = "linux", target_os = "macos", windows))]
use avril_subprocess as sys;

mod signals;

#[cfg(not(any(target_os = "linux", target_os = "macos", windows)))]
pub use registry::Tree;
pub use registry::init;
#[cfg(any(target_os = "linux", target_os = "macos", windows))]
pub use registry::supervision::Tree;

/// Which process-wide signal duties the subprocess supervisor takes on.
/// `Run` installs an interrupt handler; `Serve` and `Repl` leave interrupt
/// to their own handlers (serve's shutdown, the REPL's eval interrupt).
/// Terminate fate belongs to whoever claims it (serve's CLI listener); on
/// unclaimed deliveries the supervisor stops children, waits briefly, then
/// dies like the default disposition.
#[derive(Clone, Copy)]
pub enum SignalMode {
    Run,
    Serve,
    Repl,
}