Fix propagation of "is shutdown user-initiated?" status

[MarkusPettersson98]

This change is 

[hulthe]

@hulthe reviewed 3 files and all commit messages, and made 1 comment.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on hulthe).

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mullvad-daemon/src/shutdown.rs line 50 at r1 (raw file):

#[cfg(target_os = "macos")]
pub fn is_shutdown_user_initiated() -> bool {
    false

TODO:

[hulthe]

@hulthe made 1 comment.
Reviewable status: all files reviewed, 2 unresolved discussions (waiting on MarkusPettersson98).

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mullvad-daemon/src/main.rs line 207 at r3 (raw file):

    #[cfg(any(target_os = "linux", target_os = "macos"))]
    mullvad_daemon::shutdown::set_shutdown_signal_handler(move || {
        shutdown_handle.shutdown(!mullvad_daemon::shutdown::is_shutdown_user_initiated())

Did some testing and some thinking.

Since we're removing two ! operators on linux, the behavior will stay the same, except in the error case, i.e. where the user isn't running systemd.

On macOS, we currently remove a single !, inverting the behavior. This means the daemon will always block if it's stopped. On main, it never blocks when daemon is shut down, meaning that macOS network traffic can leak on reboot.