StructTimeval.java

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.system;

import libcore.util.Objects;

/**
 * Corresponds to C's {@code struct timeval} from
 * <a href="http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_time.h.html"><sys/time.h></a>
 *
 * @hide
 */
public final class StructTimeval {
  /** Seconds. */
  public final long tv_sec;

  /** Microseconds. */
  public final long tv_usec;

  private StructTimeval(long tv_sec, long tv_usec) {
    this.tv_sec = tv_sec;
    this.tv_usec = tv_usec;
  }

  public static StructTimeval fromMillis(long millis) {
    long tv_sec = millis / 1000;
    long tv_usec = (millis - (tv_sec * 1000)) * 1000;
    return new StructTimeval(tv_sec, tv_usec);
  }

  public long toMillis() {
    return (tv_sec * 1000) + (tv_usec / 1000);
  }

  @Override public String toString() {
    return Objects.toString(this);
  }
}