How to recive more than 65000 bytes in C++ socket using recv()

Posted by Mr.Cool on Stack Overflow See other posts from Stack Overflow or by Mr.Cool
Published on 2012-03-29T06:31:13Z Indexed on 2012/04/03 11:30 UTC
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I am developing a client server application (TCP) in Linux using C++. I want to send more than 65,000 bytes at the same time. In TCP, the maximum packet size is 65,635 bytes only.

How can I send the entire bytes without loss?

Following is my code at server side.

//Receive the message from client socket
if((iByteCount = recv(GetSocketId(), buffer, MAXRECV, MSG_WAITALL)) > 0) 
{
     printf("\n Received bytes %d\n", iByteCount);

     SetReceivedMessage(buffer);
     return LS_RESULT_OK;
}

If I use MSG_WAITALL it takes a long time to receive the bytes so how can I set the flag to receive more than 10 lakhs bytes at time.

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