copy mode uses the real screen as backing and if it is updated while copying,

strange things can happen. So, freeze reading from the pty while in copy mode.

1 files changed, 1 insertions, 0 deletions

diff --git a/tmux.h b/tmux.h
index 02712651..ac398f04 100644
--- a/tmux.h
+++ b/tmux.h
@@ -787,6 +787,7 @@ struct window_pane {
 
 	int		 flags;
 #define PANE_REDRAW 0x1
+#define PANE_FREEZE 0x2
 
 	char		*cmd;
 	char		*shell;