From 8a214b2f8e57be9b55c091ebc707a05a176f3eaa Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Mon, 29 May 2017 20:37:30 +0000
Subject: [PATCH] Function to count clients.

---
 server-client.c | 15 +++++++++++++++
 tmux.h          |  1 +
 2 files changed, 16 insertions(+)

diff --git a/server-client.c b/server-client.c
index cfaf565b..18e9d935 100644
--- a/server-client.c
+++ b/server-client.c
@@ -49,6 +49,21 @@ static void	server_client_dispatch_command(struct client *, struct imsg *);
 static void	server_client_dispatch_identify(struct client *, struct imsg *);
 static void	server_client_dispatch_shell(struct client *);
 
+/* Number of attached clients. */
+u_int
+server_client_how_many(void)
+{
+	struct client  	*c;
+	u_int		 n;
+
+	n = 0;
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (c->session != NULL && (~c->flags & CLIENT_DETACHING))
+			n++;
+	}
+	return (n);
+}
+
 /* Identify mode callback. */
 static void
 server_client_callback_identify(__unused int fd, __unused short events,
diff --git a/tmux.h b/tmux.h
index 6fcfd9d3..9c25bcc9 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1836,6 +1836,7 @@ void	 server_update_socket(void);
 void	 server_add_accept(int);
 
 /* server-client.c */
+u_int	 server_client_how_many(void);
 void	 server_client_set_identify(struct client *);
 void	 server_client_clear_identify(struct client *, struct window_pane *);
 void	 server_client_set_key_table(struct client *, const char *);