Sending big data> 1 MB via Windows Sockets using the send function

Question

I want to send a large message> 1 MB via windows send api sockets. Is there an efficient way to do this, I don't want to quote, and then send the data to pieces. I read somewhere that you can increase the size of the socket buffer, and this may help. Can anyone think of this. Any help is appreciated

Answer 1

You should, and really should, be obsessed with sending data to pieces.

As explained in the Bay Network Guide:

"send() - , ! ., , , . , ".

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, send(), recv(). , , , , .

Beej send() recv() , . http://beej.us/guide/bgnet/output/print/bgnet_USLetter.pdf

Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

, ++:

#define DEFAULT_BUFLEN 1452    
int SendStr(const SOCKET &ConnectSocket, const std::string &str, int strlen){
        char sndbuf[DEFAULT_BUFLEN];
        int sndbuflen = DEFAULT_BUFLEN;
        int iResult;
        int count = 0;
        int len;
        while(count < strlen){
            len = min(strlen-count, sndbuflen);
            //void * memcpy ( void * destination, const void * source, size_t num );
            memcpy(sndbuf,str.data()+count,len);
            // Send a buffer
            iResult = send(ConnectSocket, sndbuf, len, 0);
            // iResult: Bytes sent
            if (iResult == SOCKET_ERROR){
                throw WSAGetLastError();
            }
            else{
                if(iResult > 0){
                    count+=iResult;
                }
                else{
                    break;
                }
            }
        }
        return count;
    }