Make session_attached a count and add session_many_attached flag.

1 files changed, 2 insertions, 0 deletions

diff --git a/tmux.h b/tmux.h
index 0a6ca4e4..fb2fb940 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1083,6 +1083,8 @@ struct session {
 #define SESSION_UNATTACHED 0x1	/* not attached to any clients */
 	int		 flags;
 
+	u_int            attached;
+
 	struct termios	*tio;
 
 	struct environ	 environ;