Writing unsigned types to a Netty ChannelBuffer

Question

Netty's ChannelBuffer class provides convenient methods for reading unsigned types from a ChannelBuffer, however there don't appear to be any equivalent methods for writing unsigned types to a ChannelBuffer.

I feel like I must be missing something. What's the recommended approach for say, writing an unsigned integer to a ChannelBuffer?

Thanks!

i think this may help you http://stackoverflow.com/questions/4266756/can-we-make-unsigned-byte-in-java — duanji, Jan 07 '17 at 05:07

score 3 · Accepted Answer · answered Dec 23 '11 at 19:14

3

If you want to write a 32-bit value its all the same.

channelBuffer.writeInt(my32bitValue);

answered Dec 23 '11 at 19:14

Peter Lawrey

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Consider: `long reallyBigUnsignedInt = inChannelBuffer.readUnsignedInt();` Assume that reallyBigUnsignedInt exceeds the maximum for a signed int. What's the best way to write this value to another ChannelBuffer as an unsigned int? Thanks! – HolySamosa Dec 23 '11 at 20:02
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Ah, I see. Downcasting a large unsigned int stored as a long to an int "just works". – HolySamosa Dec 23 '11 at 21:31
A 32-bit value is a value which uses 4 byte, what you make of it unsigned, signed, float etc is up to you when you read it. – Peter Lawrey Dec 23 '11 at 22:21

score 0 · Answer 2 · edited May 23 '17 at 12:02

0

i think this may help you Can we make unsigned byte in Java

you can just send msg like this.

byteBuf.writeByte(0x80);

edited May 23 '17 at 12:02

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answered Jan 07 '17 at 05:11

duanji

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Writing unsigned types to a Netty ChannelBuffer

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