core: fix a few asan reported issues and a coredump on exit (#6285)

* xwayland: add destructor to CXWM and free resource

the wl_event_resource was running upon destruction of the compositor
causing a null pointer segfault in onX11Event so ensure the event is
removed upon destruction, also free the memory allocated by
xcb_errors_context_new and finally call xcb_disconnect on the connection
to free the fd and its memory.

* hyprctl: dont leak the fd on destruction

add a destructor and properly free the fd on destruction

* eventloop: add destructor and free event source

properly free the wl_event_source upon destruction.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/managers/eventLoop/EventLoopManager.hpp b/src/managers/eventLoop/EventLoopManager.hpp
index f2ba61a4..7a4fa19e 100644
--- a/src/managers/eventLoop/EventLoopManager.hpp
+++ b/src/managers/eventLoop/EventLoopManager.hpp
@@ -10,6 +10,7 @@
 class CEventLoopManager {
   public:
     CEventLoopManager();
+    ~CEventLoopManager();
 
     void enterLoop(wl_display* display, wl_event_loop* wlEventLoop);
 
@@ -24,8 +25,9 @@ class CEventLoopManager {
 
   private:
     struct {
-        wl_event_loop* loop    = nullptr;
-        wl_display*    display = nullptr;
+        wl_event_loop*   loop        = nullptr;
+        wl_display*      display     = nullptr;
+        wl_event_source* eventSource = nullptr;
     } m_sWayland;
 
     struct {