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 17 package android.system; 18 19 import libcore.util.Objects; 20 21 /** 22 * File information returned by {@link Os#fstat}, {@link Os#lstat}, and {@link Os#stat}. 23 * Corresponds to C's {@code struct stat} from {@code <stat.h>}. 24 */ 25 public final class StructStat { 26 /** Device ID of device containing file. */ 27 public final long st_dev; /*dev_t*/ 28 29 /** File serial number (inode). */ 30 public final long st_ino; /*ino_t*/ 31 32 /** Mode (permissions) of file. */ 33 public final int st_mode; /*mode_t*/ 34 35 /** Number of hard links to the file. */ 36 public final long st_nlink; /*nlink_t*/ 37 38 /** User ID of file. */ 39 public final int st_uid; /*uid_t*/ 40 41 /** Group ID of file. */ 42 public final int st_gid; /*gid_t*/ 43 44 /** Device ID (if file is character or block special). */ 45 public final long st_rdev; /*dev_t*/ 46 47 /** 48 * For regular files, the file size in bytes. 49 * For symbolic links, the length in bytes of the pathname contained in the symbolic link. 50 * For a shared memory object, the length in bytes. 51 * For a typed memory object, the length in bytes. 52 * For other file types, the use of this field is unspecified. 53 */ 54 public final long st_size; /*off_t*/ 55 56 /** Seconds part of time of last access. */ 57 public final long st_atime; /*time_t*/ 58 59 /** StructTimespec with time of last access. */ 60 public final StructTimespec st_atim; 61 62 /** Seconds part of time of last data modification. */ 63 public final long st_mtime; /*time_t*/ 64 65 /** StructTimespec with time of last modification. */ 66 public final StructTimespec st_mtim; 67 68 /** Seconds part of time of last status change */ 69 public final long st_ctime; /*time_t*/ 70 71 /** StructTimespec with time of last status change. */ 72 public final StructTimespec st_ctim; 73 74 /** 75 * A file system-specific preferred I/O block size for this object. 76 * For some file system types, this may vary from file to file. 77 */ 78 public final long st_blksize; /*blksize_t*/ 79 80 /** Number of blocks allocated for this object. */ 81 public final long st_blocks; /*blkcnt_t*/ 82 83 /** 84 * Constructs an instance with the given field values. 85 */ 86 public StructStat(long st_dev, long st_ino, int st_mode, long st_nlink, int st_uid, int st_gid, 87 long st_rdev, long st_size, long st_atime, long st_mtime, long st_ctime, 88 long st_blksize, long st_blocks) { 89 this(st_dev, st_ino, st_mode, st_nlink, st_uid, st_gid, 90 st_rdev, st_size, new StructTimespec(st_atime, 0L), new StructTimespec(st_mtime, 0L), 91 new StructTimespec(st_ctime, 0L), st_blksize, st_blocks); 92 } 93 94 /** 95 * Constructs an instance with the given field values. 96 */ 97 public StructStat(long st_dev, long st_ino, int st_mode, long st_nlink, int st_uid, int st_gid, 98 long st_rdev, long st_size, StructTimespec st_atim, StructTimespec st_mtim, 99 StructTimespec st_ctim, long st_blksize, long st_blocks) { 100 this.st_dev = st_dev; 101 this.st_ino = st_ino; 102 this.st_mode = st_mode; 103 this.st_nlink = st_nlink; 104 this.st_uid = st_uid; 105 this.st_gid = st_gid; 106 this.st_rdev = st_rdev; 107 this.st_size = st_size; 108 this.st_atime = st_atim.tv_sec; 109 this.st_mtime = st_mtim.tv_sec; 110 this.st_ctime = st_ctim.tv_sec; 111 this.st_atim = st_atim; 112 this.st_mtim = st_mtim; 113 this.st_ctim = st_ctim; 114 this.st_blksize = st_blksize; 115 this.st_blocks = st_blocks; 116 } 117 118 @Override public String toString() { 119 return Objects.toString(this); 120 } 121 } 122
