From: Pip Cet <pipcet@gmail.com>
Date: Sun, 27 Sep 2020 13:07:34 +0000 (+0200)
Subject: Avoid 1s sleep-for before sending the startfile to a comint process
X-Git-Tag: emacs-28.0.90~5850
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=8d241e8840fdb02dcfce52425626dd8f2125e51a;p=emacs.git

Avoid 1s sleep-for before sending the startfile to a comint process

* lisp/comint.el (comint-exec): Simplify startup file code.
(Bug#41640).
---

diff --git a/lisp/comint.el b/lisp/comint.el
index b4ea232767c..b966fae9364 100644
--- a/lisp/comint.el
+++ b/lisp/comint.el
@@ -820,18 +820,10 @@ series of processes in the same Comint buffer.  The hook
       (goto-char (point-max))
       (set-marker (process-mark proc) (point))
       ;; Feed it the startfile.
-      (cond (startfile
-	     ;;This is guaranteed to wait long enough
-	     ;;but has bad results if the comint does not prompt at all
-	     ;;	     (while (= size (buffer-size))
-	     ;;	       (sleep-for 1))
-	     ;;I hope 1 second is enough!
-	     (sleep-for 1)
-	     (goto-char (point-max))
-	     (insert-file-contents startfile)
-	     (setq startfile (buffer-substring (point) (point-max)))
-	     (delete-region (point) (point-max))
-	     (comint-send-string proc startfile)))
+      (when startfile
+        (comint-send-string proc (with-temp-buffer
+                                   (insert-file-contents startfile)
+                                   (buffer-string))))
       (run-hooks 'comint-exec-hook)
       buffer)))