Fix Xlib exiting on error.

diff --git a/spectrwm.c b/spectrwm.c
index 5667102..cd6ca79 100644 (file)
--- a/spectrwm.c
+++ b/spectrwm.c
@@ -256,6 +256,7 @@ volatile sig_atomic_t   running = 1;
 volatile sig_atomic_t   restart_wm = 0;
 int                    outputs = 0;
 /*int                  last_focus_event = FocusOut;*/
+int                    (*xerrorxlib)(Display *, XErrorEvent *);
 int                    other_wm;
 int                    ss_enabled = 0;
 int                    xrandr_support;
@@ -7621,6 +7622,17 @@ event_handle(xcb_generic_event_t *evt)
                screenchange((void *)evt);
 }
 
+xerror(Display *d, XErrorEvent *ee)
+{
+#ifdef SWM_DEBUG
+       char error_text[1024];
+       XGetErrorText(display, ee->error_code, error_text, sizeof(error_text));
+       DNPRINTF(SWM_D_MISC, "xerror: error_code: %u, error_text: %s\n",
+           ee->error_code, error_text);
+#endif
+       return -1;
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -7659,6 +7671,9 @@ main(int argc, char *argv[])
        if (!(display = XOpenDisplay(0)))
                errx(1, "can not open display");
 
+       /* prevent xlib from exiting on an error */
+       xerrorxlib = XSetErrorHandler(xerror);
+
        conn = XGetXCBConnection(display);
        if (xcb_connection_has_error(conn))
                errx(1, "can not get XCB connection");