Sync OpenBSD patchset 766:

Two new options:

- server option "exit-unattached" makes the server exit when no clients
  are attached, even if sessions are present;

- session option "destroy-unattached" destroys a session once no clients
  are attached to it.

These are useful for preventing tmux remaining in the background where
it is undesirable and when using tmux as a login shell to keep a limit
on new sessions.

1 files changed, 20 insertions, 1 deletions

diff --git a/server-fn.c b/server-fn.c
index 5865c332..ffdaa934 100644
--- a/server-fn.c
+++ b/server-fn.c
@@ -1,4 +1,4 @@
-/* $Id: server-fn.c,v 1.110 2010-08-11 22:16:43 tcunha Exp $ */
+/* $Id: server-fn.c,v 1.111 2010-10-09 14:29:32 tcunha Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -405,6 +405,25 @@ server_destroy_session(struct session *s)
 }
 
 void
+server_check_unattached (void)
+{
+	struct session	*s;
+	u_int		 i;
+
+	/*
+	 * If any sessions are no longer attached and have destroy-unattached
+	 * set, collect them.
+	 */
+	for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
+		s = ARRAY_ITEM(&sessions, i);
+		if (s == NULL || !(s->flags & SESSION_UNATTACHED))
+			continue;
+		if (options_get_number (&s->options, "destroy-unattached"))
+			session_destroy(s);
+	}
+}
+
+void
 server_set_identify(struct client *c)
 {
 	struct timeval	tv;