Method initNanoTime

output/java_guava/1.4.19/Monitor.java:984–991

Returns System.nanoTime() unless the timeout has already elapsed. Returns 0L if and only if the timeout has already elapsed.

(long timeoutNanos)

   */

  private static long initNanoTime(long timeoutNanos) {
    if (timeoutNanos <= 0L) {
      return 0L;
    } else {
      long startTime = System.nanoTime();
      return (startTime == 0L) ? 1L : startTime;
    }
  }

  /**
   * Returns the remaining nanos until the given timeout, or 0L if the timeout has already elapsed.