code: def sys_readv(self, fd, iov, count):
          
          cpu = self.current
          ptrsize = cpu.address_bit_size
          sizeof_iovec = 2 * (ptrsize // 8)
          total = 0
          for i in range(0, count):
              buf = cpu.read_int(iov + i * sizeof_iovec, ptrsize)
              size = cpu.read_int(iov + i * sizeof_iovec + (sizeof_iovec // 2),
                                  ptrsize)
  
              data = self.files[fd].read(size)
              total += len(data)
              cpu.write_bytes(buf, data)
              self.syscall_trace.append(("_read", fd, data))
          return total
docs: Works just like C{sys_read} except that data is read into multiple buffers.
          :rtype: int
  
          :param fd: the file descriptor of the file to read.
          :param iov: the buffer where the the bytes to read are stored.
          :param count: amount of C{iov} buffers to read from the file.
          :return: the amount of bytes read in total.