extension: Add missing toplevel counter logic

We previously only bumped it when instantiating DeviceManager and
PortalService objects. We also need to do it for Compiler,
PackageManager, and FileMonitor. Otherwise signal emissions won't
work in some applications.

Author: oleavr

frida/_frida/extension.c

@@ -529,12 +529,14 @@ static gchar * frida_python_authentication_service_authenticate_finish (FridaAut
 static void frida_python_authentication_service_do_authenticate (GTask * task, FridaPythonAuthenticationService * self);
 
 static int PyCompiler_init (PyCompiler * self, PyObject * args, PyObject * kw);
+static void PyCompiler_dealloc (PyCompiler * self);
 static PyObject * PyCompiler_build (PyCompiler * self, PyObject * args, PyObject * kw);
 static PyObject * PyCompiler_watch (PyCompiler * self, PyObject * args, PyObject * kw);
 static gboolean PyCompiler_set_options (FridaCompilerOptions * options, const gchar * project_root_value, const gchar * output_format_value,
     const gchar * bundle_format_value, const gchar * type_check_value, const gchar * source_maps_value, const gchar * compression_value);
 
 static int PyPackageManager_init (PyPackageManager * self, PyObject * args, PyObject * kw);
+static void PyPackageManager_dealloc (PyPackageManager * self);
 static PyObject * PyPackageManager_repr (PyPackageManager * self);
 static PyObject * PyPackageManager_search (PyPackageManager * self, PyObject * args, PyObject * kw);
 static PyObject * PyPackageManager_install (PyPackageManager * self, PyObject * args, PyObject * kw);
@@ -559,6 +561,7 @@ static void PyPackageInstallResult_dealloc (PyPackageInstallResult * self);
 static PyObject * PyPackageInstallResult_repr (PyPackageInstallResult * self);
 
 static int PyFileMonitor_init (PyFileMonitor * self, PyObject * args, PyObject * kw);
+static void PyFileMonitor_dealloc (PyFileMonitor * self);
 static PyObject * PyFileMonitor_enable (PyFileMonitor * self);
 static PyObject * PyFileMonitor_disable (PyFileMonitor * self);
 
@@ -957,12 +960,14 @@ PYFRIDA_DEFINE_TYPE ("_frida.EndpointParameters", EndpointParameters, GObject, N
 PYFRIDA_DEFINE_TYPE ("_frida.Compiler", Compiler, GObject, NULL, frida_unref,
   { Py_tp_doc, "Frida Compiler" },
   { Py_tp_init, PyCompiler_init },
+  { Py_tp_dealloc, PyCompiler_dealloc },
   { Py_tp_methods, PyCompiler_methods },
 );
 
 PYFRIDA_DEFINE_TYPE ("_frida.PackageManager", PackageManager, GObject, NULL, frida_unref,
   { Py_tp_doc, "Frida Package Manager" },
   { Py_tp_init, PyPackageManager_init },
+  { Py_tp_dealloc, PyPackageManager_dealloc },
   { Py_tp_repr, PyPackageManager_repr },
   { Py_tp_methods, PyPackageManager_methods },
 );
@@ -994,6 +999,7 @@ PYFRIDA_DEFINE_TYPE ("_frida.PackageInstallResult", PackageInstallResult, GObjec
 PYFRIDA_DEFINE_TYPE ("_frida.FileMonitor", FileMonitor, GObject, NULL, frida_unref,
   { Py_tp_doc, "Frida File Monitor" },
   { Py_tp_init, PyFileMonitor_init },
+  { Py_tp_dealloc, PyFileMonitor_dealloc },
   { Py_tp_methods, PyFileMonitor_methods },
 );
 
@@ -4869,11 +4875,21 @@ PyCompiler_init (PyCompiler * self, PyObject * args, PyObject * kw)
   if (PyGObject_tp_init ((PyObject *) self, args, kw) < 0)
     return -1;
 
+  g_atomic_int_inc (&toplevel_objects_alive);
+
   PyGObject_take_handle (&self->parent, frida_compiler_new (NULL), PYFRIDA_TYPE (Compiler));
 
   return 0;
 }
 
+static void
+PyCompiler_dealloc (PyCompiler * self)
+{
+  g_atomic_int_dec_and_test (&toplevel_objects_alive);
+
+  PyGObject_tp_dealloc ((PyObject *) self);
+}
+
 static PyObject *
 PyCompiler_build (PyCompiler * self, PyObject * args, PyObject * kw)
 {
@@ -5030,11 +5046,21 @@ PyPackageManager_init (PyPackageManager * self, PyObject * args, PyObject * kw)
   if (PyGObject_tp_init ((PyObject *) self, args, kw) < 0)
     return -1;
 
+  g_atomic_int_inc (&toplevel_objects_alive);
+
   PyGObject_take_handle (&self->parent, frida_package_manager_new (), PYFRIDA_TYPE (PackageManager));
 
   return 0;
 }
 
+static void
+PyPackageManager_dealloc (PyPackageManager * self)
+{
+  g_atomic_int_dec_and_test (&toplevel_objects_alive);
+
+  PyGObject_tp_dealloc ((PyObject *) self);
+}
+
 static PyObject *
 PyPackageManager_repr (PyPackageManager * self)
 {
@@ -5373,11 +5399,21 @@ PyFileMonitor_init (PyFileMonitor * self, PyObject * args, PyObject * kw)
   if (!PyArg_ParseTuple (args, "s", &path))
     return -1;
 
+  g_atomic_int_inc (&toplevel_objects_alive);
+
   PyGObject_take_handle (&self->parent, frida_file_monitor_new (path), PYFRIDA_TYPE (FileMonitor));
 
   return 0;
 }
 
+static void
+PyFileMonitor_dealloc (PyFileMonitor * self)
+{
+  g_atomic_int_dec_and_test (&toplevel_objects_alive);
+
+  PyGObject_tp_dealloc ((PyObject *) self);
+}
+
 static PyObject *
 PyFileMonitor_enable (PyFileMonitor * self)
 {