I am trying to read specific number of bytes from the socket. My server is sending:
1) byte[0] - length of the message 2) byte[1:N] - the actual message
How do I read the first byte and then read the remaining bytes using boost::asio::ip::tcp::socket::read ? Here is the code snippet:
// receive data through the socket
void TCPTestClient::ReceiveData( )
{
try
{
boost::system::error_code error;
boost::asio::streambuf receivedStreamBuffer;
// reserve 512 bytes in output sequence
boost::asio::streambuf::mutable_buffers_type bufs =receivedStreamBuffer.prepare( 512 );
boost::asio::read( m_socket,
bufs,
error );
// transfer the buffer contents to string
std::istream is( &receivedStreamBuffer );
is >> m_receivedMessageStr;
// throw exception if error occurred
if ( error )
{
throw NetworkTestFailedException( error.message() );
}
}
catch(...)
{
}
}