How many times is the messageReceived() Method invoked when I send large data?

[sinogermany]

Hi both,

the problem was perfectly solved. Thank you so much for the quick replies.

here's the codes I added:
server side:

private int size = -1;
						
@Override
protected Object decode(ChannelHandlerContext ctx, Channel channel,
ChannelBuffer buffer){
    if(size < 0 && buffer.readableBytes() > 0){
        size = buffer.readInt();
    }
							
    int bytesRead = buffer.readableBytes();
    if(bytesRead < size){
        return null;
    }else{
        return buffer.readBytes(size);
    }
}





client side:
ChannelBuffer bufferToWrite =
ChannelBuffers.directBuffer(buf.readableBytes()+4);
bufToWrite.writeInt(buf.readableBytes());
bufToWrite.writeBytes(buf);
channel.getChannel().write(bufToWrite);




Now I can transfer really large binary data.

I still got two small questions:
1. on the client side, is there a way to "insert" the size to the first 4
bytes in the "buf" object (like an "ArrayList") ? Calling a new
channelbuffer object costs twice so much memory.


2. When several clients write large streams simultaniously, there should be
several instances of my Decoder, right? I mean a part of request A should
not be stimulated into the buffer of request B.


Anyway, big problem solved, so thank you very much again!
감사합니다
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