From d7561cab0b1601866ce993b6557b2c8c2cb545b8 Mon Sep 17 00:00:00 2001
From: Nikolay Edigaryev <edigaryev@gmail.com>
Date: Thu, 16 Mar 2023 18:37:46 +0400
Subject: [PATCH] Graceful Softnet termination (#434)

---
 Sources/tart/Commands/Run.swift | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Sources/tart/Commands/Run.swift b/Sources/tart/Commands/Run.swift
index 61f5960..2040fcf 100644
--- a/Sources/tart/Commands/Run.swift
+++ b/Sources/tart/Commands/Run.swift
@@ -363,7 +363,13 @@ struct Run: AsyncParsableCommand {
             VMView(vm: vm!).onAppear {
               NSWindow.allowsAutomaticWindowTabbing = false
             }.onDisappear {
-              NSApplication.shared.terminate(self)
+              let ret = kill(getpid(), SIGINT)
+              if ret != 0 {
+                // Fallback to the old termination method that doesn't
+                // propagate the cancellation to Task's in case graceful
+                // termination via kill(2) is not successful
+                NSApplication.shared.terminate(self)
+              }
             }
           }.frame(width: CGFloat(vm!.config.display.width), height: CGFloat(vm!.config.display.height))
         }.commands {