Re: how to send buffer size message and buffer

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Article #4949

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#4949

From: duncan
Date: Fri, 19 Nov 2004 11:03

36 lines
2255 bytes

Hi Remy, thanks for all your usefull code,

I have looked through it, and I get most of it  but I am unsure
 about the following bit of code

what does the method for ReadRawFromSocket look like and 
what is SomeBuffer is this a global variable that sotres all FBuffer info from multiple ClientRead events?


    void __fastcall TServerForm.ServerSocketClientRead(TObject *Sender,
TCustomWinSocket *Socket)
    {
        int BufLen = Socket->ReceiveLength();
        if( BufLen <= 0 ) return;

        void *Ptr = FBuffer->Expand(BufLen);
        ReadRawFromSocket(Socket, Ptr, BufLen);

        while( FBuffer->RemainingBytes() >= sizeof(int) )
        {
            BufLen = ReadIntegerFromStream(FBuffer);
            if( FBuffer->RemainingBytes() < BufLen )
            {
                FBuffer->Position = 0;
                break;
            }

            if( BufLen > 0 )
            {
                ReadRawFromStream(FBuffer, SomeBuffer, BufLen);
                // process SomeBuffer as needed...
                FBuffer->Remove(FBuffer->Position);
            }
        }
    }

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