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A Gleam registry library

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chip src chip_erlang_ffi.erl
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src/chip_erlang_ffi.erl 

-module(chip_erlang_ffi).

-export([

    decode_down_message/1,

    demonitor/1,

    search/3, 

    search/1 

]).



search(Table, Pattern, Limit) -> 

    Result = ets:match(Table, Pattern, Limit),

    handle_search(Result).

    

search(Continuation) -> 

    Result = ets:match(Continuation),

    handle_search(Result).

    

handle_search(Result) -> 

    case Result of

        {Objects, '$end_of_table'} -> 

            {end_of_table, Objects};

            

        {Objects, Continuation} -> 

            {partial, Objects, Continuation};

            

        '$end_of_table' ->

            {end_of_table, []}

        end.



decode_down_message(Message) ->

    % Exit reasons: https://elixirforum.com/t/why-does-registry-use-set-and-duplicate-bag/44058

    case Message of

        {'DOWN', Monitor, process, Pid, _ExitReason} when is_reference(Monitor) and is_pid(Pid) -> 

            {ok, {process_down, Monitor, Pid}};

        

        _other -> 

            {error, nil}

        end.

                

demonitor(Reference) ->

    erlang:demonitor(Reference, [flush]),

    nil.