mail: Do not creating multiple processes

* mail.el (durand-mail-update): If there is already a process that is
  fetching mails, we should not create more processes to do the same
  thing.

1 files changed, 2 insertions, 1 deletions

diff --git a/mail.el b/mail.el
index 6493ce3..47d7858 100644
--- a/mail.el
+++ b/mail.el
@@ -308,7 +308,8 @@ If FOREGROUND-P is `0', do not fetch mails, but just run
    ((and (numberp foreground-p)
          (= foreground-p 0))
     (run-hooks 'durand-mail-update-hook))
-   ((make-process
+   ((not (get-process "durand-mail-update"))
+    (make-process
      :name "durand-mail-update"
      :command durand-mail-update-command
      :filter (cond (foreground-p #'durand-mail-update-filter))