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fix(lwm2m): decode/encode data as signed integer

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Shawn 2021-04-08 09:42:16 +08:00 committed by turtleDeng
parent 765d84ef48
commit f8fbd3e3db
1 changed files with 2 additions and 2 deletions
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4
apps/emqx_lwm2m/src/emqx_lwm2m_message.erl
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@ -126,7 +126,7 @@ value(Value, ResourceId, ObjDefinition) ->
Value; % keep binary type since it is same as a string for jsx Value; % keep binary type since it is same as a string for jsx
"Integer" -> "Integer" ->
Size = byte_size(Value)*8, Size = byte_size(Value)*8,
<<IntResult:Size>> = Value, <<IntResult:Size/signed>> = Value,
IntResult; IntResult;
"Float" -> "Float" ->
Size = byte_size(Value)*8, Size = byte_size(Value)*8,
@ -365,7 +365,7 @@ encode_int(Int) when Int >= 0 ->
binary:encode_unsigned(Int); binary:encode_unsigned(Int);
encode_int(Int) when Int < 0 -> encode_int(Int) when Int < 0 ->
Size = byte_size_of_signed(-Int) * 8, Size = byte_size_of_signed(-Int) * 8,
<<Int:Size>>. <<Int:Size/signed>>.
byte_size_of_signed(UInt) -> byte_size_of_signed(UInt) ->
byte_size_of_signed(UInt, 0). byte_size_of_signed(UInt, 0).