public <T> T await(Command<K, V, T> cmd, long timeout, TimeUnit unit) {
if (!cmd.await(timeout, unit)) {
cmd.cancel(true);
throw new RedisException("Command timed out");
}
CommandOutput<K, V, T> output = cmd.getOutput();
if (output.hasError()) throw new RedisException(output.getError());
return output.get();
}
/**
* Get the command output and if the command hasn't completed yet, wait until it does.
*
* @return The command output.
*/
@Override
public T get() {
try {
latch.await();
return output.get();
} catch (InterruptedException e) {
throw new RedisCommandInterruptedException(e);
}
}
/**
* Get the command output and if the command hasn't completed yet, wait up to the specified time
* until it does.
*
* @param timeout Maximum time to wait for a result.
* @param unit Unit of time for the timeout.
* @return The command output.
* @throws TimeoutException if the wait timed out.
*/
@Override
public T get(long timeout, TimeUnit unit) throws TimeoutException {
try {
// 等待线程
if (!latch.await(timeout, unit)) {
throw new TimeoutException("Command timed out");
}
} catch (InterruptedException e) {
throw new RedisCommandInterruptedException(e);
}
return output.get();
}