with shared memory

rktwebview_qt/rktwebview.cpp

@@ -7,6 +7,7 @@
 //#include <unistd.h>
 #include <fcntl.h>
 #include "rktwebview_qt.h"
+#include "shmqueue.h"
 
 uint64_t current_ms() {
     using namespace std::chrono;
@@ -17,7 +18,14 @@ uint64_t current_ms() {
 // Main C Interface
 /////////////////////////////////////////////////////////////////////
 
-Rktwebview_qt *handler = nullptr;
+typedef struct {
+    Shm *shm;
+    ShmQueue *command_queue;
+    ShmQueue *event_queue;
+    Rktwebview_qt *rkt;
+} Handle_t;
+
+Handle_t *handler = nullptr;
 
 void rkt_webview_cleanup()
 {
@@ -25,6 +33,27 @@ void rkt_webview_cleanup()
         // Does nothing.
         // See QTBUG-145033
         // QtWebEngine cannot be started as part of QApplication more than once in an application run.
+        // So we would need to cleanup at exit of racket/drracket.
+        // Cleaning up when exiting the current custodian is not enough.
+
+        /*
+        QApplication *app = handler->app();
+        if (app != nullptr) {
+            // testing with #:custodian (current-custodian)
+            QTimer t;
+            QObject::connect(&t, &QTimer::timeout, app, [app]() {
+                fprintf(stderr, "Quitting\n");
+                app->quit();
+            });
+            t.setSingleShot(true);
+            t.start(250);
+            fprintf(stderr, "Executing app\n");
+            app->exec();
+            fprintf(stderr, "App exited\n");
+            delete handler;
+            handler = nullptr;
+        }
+        */
     }
 }