Function WSASend 

pub unsafe fn WSASend(
    s: SOCKET,
    lpbuffers: &[WSABUF],
    lpnumberofbytessent: Option<*mut u32>,
    dwflags: u32,
    lpoverlapped: Option<*mut OVERLAPPED>,
    lpcompletionroutine: LPWSAOVERLAPPED_COMPLETION_ROUTINE,
) -> i32