StructStat.java revision fe77f817b540f2a66c17486a618bb9083a22070e 
1/*
2 * Copyright (C) 2011 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
17package android.system;
18
19import libcore.util.Objects;
20
21/**
22 * File information returned by fstat(2), lstat(2), and stat(2). Corresponds to C's
23 * {@code struct stat} from
24 * <a href="http://www.opengroup.org/onlinepubs/000095399/basedefs/sys/stat.h.html">&lt;stat.h&gt;</a>
25 *
26 * @hide
27 */
28public final class StructStat {
29  /** Device ID of device containing file. */
30  public final long st_dev; /*dev_t*/
31
32  /** File serial number (inode). */
33  public final long st_ino; /*ino_t*/
34
35  /** Mode (permissions) of file. */
36  public final int st_mode; /*mode_t*/
37
38  /** Number of hard links to the file. */
39  public final long st_nlink; /*nlink_t*/
40
41  /** User ID of file. */
42  public final int st_uid; /*uid_t*/
43
44  /** Group ID of file. */
45  public final int st_gid; /*gid_t*/
46
47  /** Device ID (if file is character or block special). */
48  public final long st_rdev; /*dev_t*/
49
50  /**
51   * For regular files, the file size in bytes.
52   * For symbolic links, the length in bytes of the pathname contained in the symbolic link.
53   * For a shared memory object, the length in bytes.
54   * For a typed memory object, the length in bytes.
55   * For other file types, the use of this field is unspecified.
56   */
57  public final long st_size; /*off_t*/
58
59  /** Time of last access. */
60  public final long st_atime; /*time_t*/
61
62  /** Time of last data modification. */
63  public final long st_mtime; /*time_t*/
64
65  /** Time of last status change. */
66  public final long st_ctime; /*time_t*/
67
68  /**
69   * A file system-specific preferred I/O block size for this object.
70   * For some file system types, this may vary from file to file.
71   */
72  public final long st_blksize; /*blksize_t*/
73
74  /** Number of blocks allocated for this object. */
75  public final long st_blocks; /*blkcnt_t*/
76
77  public StructStat(long st_dev, long st_ino, int st_mode, long st_nlink, int st_uid, int st_gid,
78                    long st_rdev, long st_size, long st_atime, long st_mtime, long st_ctime,
79                    long st_blksize, long st_blocks) {
80    this.st_dev = st_dev;
81    this.st_ino = st_ino;
82    this.st_mode = st_mode;
83    this.st_nlink = st_nlink;
84    this.st_uid = st_uid;
85    this.st_gid = st_gid;
86    this.st_rdev = st_rdev;
87    this.st_size = st_size;
88    this.st_atime = st_atime;
89    this.st_mtime = st_mtime;
90    this.st_ctime = st_ctime;
91    this.st_blksize = st_blksize;
92    this.st_blocks = st_blocks;
93  }
94
95  @Override public String toString() {
96    return Objects.toString(this);
97  }
98}
99