fixed shell process not being killed on tab close

terminus-core/src/components/splitTab.component.ts

@@ -436,6 +436,13 @@ export class SplitTabComponent extends BaseTabComponent implements OnInit, OnDes
         this.splitAdjusted.next(spanner)
     }
 
+    destroy () {
+        super.destroy()
+        for (const x of this.getAllTabs()) {
+            x.destroy()
+        }
+    }
+
     private attachTabView (tab: BaseTabComponent) {
         const ref = this.viewContainer.insert(tab.hostView) as EmbeddedViewRef<any> // eslint-disable-line @typescript-eslint/no-unnecessary-type-assertion
         this.viewRefs.set(tab, ref)

terminus-terminal/src/services/sessions.service.ts

@@ -255,15 +255,15 @@ export class Session extends BaseSession {
             await new Promise((resolve) => {
                 this.kill('SIGTERM')
                 setImmediate(() => {
-                    if (!this.open) {
-                        resolve()
-                    } else {
+                    try {
+                        process.kill(this.pty.pid, 0)
+                        // still alive
                         setTimeout(() => {
-                            if (this.open) {
                             this.kill('SIGKILL')
-                            }
                             resolve()
                         }, 1000)
+                    } catch {
+                        resolve()
                     }
                 })
             })