1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.system; 18 19 import libcore.util.Objects;; 20 21 /** 22 * Corresponds to C's {@code struct timespec} from {@code <time.h>}. 23 */ 24 public final class StructTimespec implements Comparable<StructTimespec> { 25 /** Seconds part of time of last data modification. */ 26 public final long tv_sec; /*time_t*/ 27 28 /** Nanoseconds (values are [0, 999999999]). */ 29 public final long tv_nsec; 30 31 public StructTimespec(long tv_sec, long tv_nsec) { 32 this.tv_sec = tv_sec; 33 this.tv_nsec = tv_nsec; 34 if (tv_nsec < 0 || tv_nsec > 999_999_999) { 35 throw new IllegalArgumentException( 36 "tv_nsec value " + tv_nsec + " is not in [0, 999999999]"); 37 } 38 } 39 40 @Override 41 public int compareTo(StructTimespec other) { 42 if (tv_sec > other.tv_sec) { 43 return 1; 44 } 45 if (tv_sec < other.tv_sec) { 46 return -1; 47 } 48 if (tv_nsec > other.tv_nsec) { 49 return 1; 50 } 51 if (tv_nsec < other.tv_nsec) { 52 return -1; 53 } 54 return 0; 55 } 56 57 @Override 58 public boolean equals(Object o) { 59 if (this == o) return true; 60 if (o == null || getClass() != o.getClass()) return false; 61 62 StructTimespec that = (StructTimespec) o; 63 64 if (tv_sec != that.tv_sec) return false; 65 return tv_nsec == that.tv_nsec; 66 } 67 68 @Override 69 public int hashCode() { 70 int result = (int) (tv_sec ^ (tv_sec >>> 32)); 71 result = 31 * result + (int) (tv_nsec ^ (tv_nsec >>> 32)); 72 return result; 73 } 74 75 @Override 76 public String toString() { 77 return Objects.toString(this); 78 } 79 } 80
