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File 0584-observer-Handling-unexpected-wx-event-regarding-sock.patch of Package erlang (Revision e821d375830f7564cfd918f62d383b35)

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From 05a2ef6ed43956800ee77b9988d39cf87ae9b53a Mon Sep 17 00:00:00 2001
From: Micael Karlberg <bmk@erlang.org>
Date: Fri, 25 Nov 2022 12:15:06 +0100
Subject: [PATCH 1/3] [observer] Handling unexpected wx event regarding sockets

OTP-18339
---
 lib/observer/src/observer_sock_wx.erl | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/lib/observer/src/observer_sock_wx.erl b/lib/observer/src/observer_sock_wx.erl
index 3ab8f0d27a..00af44fe47 100644
--- a/lib/observer/src/observer_sock_wx.erl
+++ b/lib/observer/src/observer_sock_wx.erl
@@ -236,14 +236,28 @@ handle_event(#wx{event=#wxSize{size={W,_}}},  State=#state{grid=Grid}) ->
     observer_lib:set_listctrl_col_size(Grid, W),
     {noreply, State};
 
+%% handle_event(#wx{event = #wxList{type      = command_list_item_activated,
+%% 				 itemIndex = Index}},
+%% 	     State = #state{grid      = Grid,
+%% 			    sockets   = Sockets,
+%% 			    open_wins = Opened})
+%%   when is_list(Sockets) andalso (length(Sockets) >= (Index+1)) ->
+%%     Socket    = lists:nth(Index+1, Sockets),
+%%     NewOpened = display_socket_info(Grid, Socket, Opened),
+%%     {noreply, State#state{open_wins = NewOpened}};
 handle_event(#wx{event = #wxList{type      = command_list_item_activated,
 				 itemIndex = Index}},
 	     State = #state{grid      = Grid,
 			    sockets   = Sockets,
-			    open_wins = Opened}) ->
-    Socket    = lists:nth(Index+1, Sockets),
-    NewOpened = display_socket_info(Grid, Socket, Opened),
-    {noreply, State#state{open_wins = NewOpened}};
+			    open_wins = Opened}) when is_list(Sockets) ->
+    if
+        length(Sockets) >= (Index+1) ->
+            Socket    = lists:nth(Index+1, Sockets),
+            NewOpened = display_socket_info(Grid, Socket, Opened),
+            {noreply, State#state{open_wins = NewOpened}};
+        true -> % Race - should we do somthing here?
+            {noreply, State}
+    end;
 
 handle_event(#wx{event = #wxList{type      = command_list_item_right_click,
 				 itemIndex = Index}},
-- 
2.35.3

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File 0584-observer-Handling-unexpected-wx-event-regarding-sock.patch of Package erlang (Revision e821d375830f7564cfd918f62d383b35)

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