+;;; Fetching setup functions.
+
+(defun gnus-agent-start-fetch ()
+ "Initialize data structures for efficient fetching."
+ (gnus-agent-open-history)
+ (setq gnus-agent-current-history (gnus-agent-history-buffer)))
+
+(defun gnus-agent-stop-fetch ()
+ "Save all data structures and clean up."
+ (gnus-agent-save-history)
+ (gnus-agent-close-history)
+ (setq gnus-agent-spam-hashtb nil)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (widen)))
+
+(defmacro gnus-agent-with-fetch (&rest forms)
+ "Do FORMS safely."
+ `(unwind-protect
+ (progn
+ (gnus-agent-start-fetch)
+ ,@forms)
+ (gnus-agent-stop-fetch)))
+
+(put 'gnus-agent-with-fetch 'lisp-indent-function 0)
+(put 'gnus-agent-with-fetch 'edebug-form-spec '(body))
+