There is a casting logic mistake in Gtid_state::wait_for_gtid_set()
and Relay_log_info::wait_for_pos() which is converting a double
value that represents seconds with fractional part to integer before
the double is converted to nanoseconds (a non fractional value):
  (ulonglong) timeout * 1000000000ULL
when timeout is 0.1 results in the final value of 0 nanoseconds.

To fix the above incorrect behaviour, the cast was changed to:
  static_cast<ulonglong>(timeout * 1000000000ULL)
when timeout is 0.1 results in the final value of 100000000 nanoseconds.

ReviewBoard: 21584