| /* |
| * Copyright (C) 2017 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.car.storagemonitoring; |
| |
| import android.annotation.SystemApi; |
| |
| /** |
| * Record of data as extracted from /proc/uid_io/stats |
| * |
| * @hide |
| */ |
| @SystemApi |
| public final class UidIoRecord { |
| |
| public final int uid; |
| |
| public final long foreground_rchar; |
| public final long foreground_wchar; |
| public final long foreground_read_bytes; |
| public final long foreground_write_bytes; |
| public final long foreground_fsync; |
| |
| public final long background_rchar; |
| public final long background_wchar; |
| public final long background_read_bytes; |
| public final long background_write_bytes; |
| public final long background_fsync; |
| |
| public UidIoRecord(int uid, |
| long foreground_rchar, |
| long foreground_wchar, |
| long foreground_read_bytes, |
| long foreground_write_bytes, |
| long foreground_fsync, |
| long background_rchar, |
| long background_wchar, |
| long background_read_bytes, |
| long background_write_bytes, |
| long background_fsync) { |
| this.uid = uid; |
| |
| this.foreground_rchar = foreground_rchar; |
| this.foreground_wchar = foreground_wchar; |
| this.foreground_read_bytes = foreground_read_bytes; |
| this.foreground_write_bytes = foreground_write_bytes; |
| this.foreground_fsync = foreground_fsync; |
| |
| this.background_rchar = background_rchar; |
| this.background_wchar = background_wchar; |
| this.background_read_bytes = background_read_bytes; |
| this.background_write_bytes = background_write_bytes; |
| this.background_fsync = background_fsync; |
| } |
| |
| /** @hide */ |
| public UidIoRecord delta(IoStatsEntry other) { |
| if (uid != other.uid) { |
| throw new IllegalArgumentException("cannot calculate delta between different user IDs"); |
| } |
| |
| return new UidIoRecord(uid, |
| foreground_rchar - other.foreground.bytesRead, |
| foreground_wchar - other.foreground.bytesWritten, |
| foreground_read_bytes - other.foreground.bytesReadFromStorage, |
| foreground_write_bytes - other.foreground.bytesWrittenToStorage, |
| foreground_fsync - other.foreground.fsyncCalls, |
| background_rchar - other.background.bytesRead, |
| background_wchar - other.background.bytesWritten, |
| background_read_bytes - other.background.bytesReadFromStorage, |
| background_write_bytes - other.background.bytesWrittenToStorage, |
| background_fsync - other.background.fsyncCalls); |
| } |
| |
| /** @hide */ |
| public UidIoRecord delta(UidIoRecord other) { |
| if (uid != other.uid) { |
| throw new IllegalArgumentException("cannot calculate delta between different user IDs"); |
| } |
| |
| return new UidIoRecord(uid, |
| foreground_rchar - other.foreground_rchar, |
| foreground_wchar - other.foreground_wchar, |
| foreground_read_bytes - other.foreground_read_bytes, |
| foreground_write_bytes - other.foreground_write_bytes, |
| foreground_fsync - other.foreground_fsync, |
| background_rchar - other.background_rchar, |
| background_wchar - other.background_wchar, |
| background_read_bytes - other.background_read_bytes, |
| background_write_bytes - other.background_write_bytes, |
| background_fsync - other.background_fsync); |
| } |
| } |