iilyak commented on a change in pull request #3766:
URL: https://github.com/apache/couchdb/pull/3766#discussion_r727011634
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File path: src/smoosh/src/smoosh_priority_queue.erl
##########
@@ -73,14 +109,56 @@ info(#priority_queue{tree=Tree}=Q) ->
[{min, Min}, {max, Max}]
end].
+from_list(Capacity, List, Q) ->
+ lists:foldr(fun({TreeKey, {Key, Value}}, Queue) ->
+ insert(Key, Value, TreeKey, Capacity, Queue)
+ end, Q, List).
+
+to_list(#priority_queue{tree=Tree}) ->
+ gb_trees:to_list(Tree).
+
+file_name(#priority_queue{name=Name}) ->
+ filename:join(".", Name ++ ".queue").
+
truncate(infinity, Q) ->
Q;
truncate(Capacity, Q) when Capacity > 0 ->
truncate(Capacity, ?MODULE:size(Q), Q).
truncate(Capacity, Size, Q) when Size =< Capacity ->
Q;
-truncate(Capacity, Size, #priority_queue{dict=Dict, tree=Tree}) when Size > 0
->
+truncate(Capacity, Size, #priority_queue{name=Name, map=Map, tree=Tree}) when
Size > 0 ->
{_, {Key, _}, Tree1} = gb_trees:take_smallest(Tree),
- Q1 = #priority_queue{dict=dict:erase(Key, Dict), tree=Tree1},
+ Q1 = #priority_queue{name=Name, map=maps:remove(Key, Map), tree=Tree1},
truncate(Capacity, ?MODULE:size(Q1), Q1).
+
+insert(Key, Value, TreeKey, Capacity, #priority_queue{name=Name, map=Map,
tree=Tree} = Q) ->
+ Tree1 = case maps:find(Key, Map) of
+ [OldTreeKey] ->
+ gb_trees:delete_any(OldTreeKey, Tree);
+ _ ->
+ Tree
+ end,
+ Tree2 = gb_trees:enter(TreeKey, {Key, Value}, Tree1),
+ Map2 = maps:put(Key, {TreeKey, Value}, Map),
+ truncate(Capacity, Q#priority_queue{name=Name, map=Map2, tree=Tree2}).
+
+do_open(FilePath) ->
+ case file:read_file(FilePath) of
+ {ok, Content} ->
Review comment:
I think you forgot about VSN byte in front of a binary.
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