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Throw mqtt_frame_too_large exception if the sent frame is too large

This commit is contained in:
Feng Lee 2018-06-12 12:10:53 +08:00
parent 5d45d40db5
commit b733a3bcfb
1 changed files with 1 additions and 1 deletions
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2
src/emqx_frame.erl
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@ -378,7 +378,7 @@ serialize(#mqtt_packet_header{type = Type,
retain = Retain}, VariableBin, PayloadBin) retain = Retain}, VariableBin, PayloadBin)
when ?CONNECT =< Type andalso Type =< ?AUTH -> when ?CONNECT =< Type andalso Type =< ?AUTH ->
Len = iolist_size(VariableBin) + iolist_size(PayloadBin), Len = iolist_size(VariableBin) + iolist_size(PayloadBin),
true = (Len =< ?MAX_PACKET_SIZE), (Len =< ?MAX_PACKET_SIZE) orelse error(mqtt_frame_too_large),
[<<Type:4, (flag(Dup)):1, (flag(QoS)):2, (flag(Retain)):1>>, [<<Type:4, (flag(Dup)):1, (flag(QoS)):2, (flag(Retain)):1>>,
serialize_remaining_len(Len), VariableBin, PayloadBin]. serialize_remaining_len(Len), VariableBin, PayloadBin].