Reduce x-selection-timeout to 5s, and add a message for clipboard manager saving.

* lisp/term/x-win.el (x-initialize-window-system): Reduce default for
x-selection-timeout to 5 seconds.

* src/xselect.c (Fx_selection_exists_p): Doc fix.
(x_clipboard_manager_save_all): Print an informative message
before saving to clipboard manager.

Fixes: debbugs:8869

1 files changed, 6 insertions, 5 deletions

diff --git a/lisp/term/x-win.el b/lisp/term/x-win.el
index 394e4d4fe48..21d49267b21 100644
--- a/lisp/term/x-win.el
+++ b/lisp/term/x-win.el
@@ -1408,11 +1408,12 @@ Request data types in the order specified by `x-select-request-type'."
                 (cons '(reverse . t) default-frame-alist)))))
 
   ;; Set x-selection-timeout, measured in milliseconds.
-  (let ((res-selection-timeout
-         (x-get-resource "selectionTimeout" "SelectionTimeout")))
-    (setq x-selection-timeout 20000)
-    (if res-selection-timeout
-        (setq x-selection-timeout (string-to-number res-selection-timeout))))
+  (let ((res-selection-timeout (x-get-resource "selectionTimeout"
+                                               "SelectionTimeout")))
+    (setq x-selection-timeout
+          (if res-selection-timeout
+              (string-to-number res-selection-timeout)
+            5000)))
 
   ;; Don't let Emacs suspend under X.
   (add-hook 'suspend-hook 'x-win-suspend-error)