rio: fix window resize and attach race

if a window gets hidden/unhidden/resized too fast, the client might have no
chance attaching to that image using winname. so we move the window
offscreen instead and delay the freeimage() by doing it in the deletethread().

1 files changed, 7 insertions, 0 deletions

diff --git a/sys/src/cmd/rio/dat.h b/sys/src/cmd/rio/dat.h
index 1f12eef48..3c7313113 100644
--- a/sys/src/cmd/rio/dat.h
+++ b/sys/src/cmd/rio/dat.h
@@ -38,6 +38,7 @@ typedef	struct	Mousestate	Mousestate;
 typedef	struct	Ref Ref;
 typedef	struct	Timer Timer;
 typedef	struct	Wctlmesg Wctlmesg;
+typedef struct	Wdelmesg Wdelmesg;
 typedef	struct	Window Window;
 typedef	struct	Xfid Xfid;
 
@@ -80,6 +81,12 @@ struct Wctlmesg
 	void		*p;
 };
 
+struct Wdelmesg
+{
+	char	*s;
+	Image	*i;
+};
+
 struct Conswritemesg
 {
 	Channel	*cw;		/* chan(Stringpair) */