Periodic desktop save

Question

How can I have emacs save my desktop periodically, so it will persist even if I do not exit with C-c C-x in desktop-save-mode or save manually?

Answer 1

Ordinarily, one would use a timer to repeat a task at given time intervals. However, the manual node on Saving Emacs Sessions states that:

When desktop-save-mode is active and the desktop file exists, Emacs auto-saves it every desktop-auto-save-timeout seconds, if that is non-nil and non-zero.

I found this information by looking in the elisp manual on Desktop Save Mode and following the link to the manual node on Saving Emacs Sessions.