1/*
2 * Copyright (C) 2015 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 com.android.server.am;
18
19import android.app.ActivityManager;
20import android.os.SystemClock;
21import android.os.UserHandle;
22import android.util.TimeUtils;
23
24/**
25 * Overall information about a uid that has actively running processes.
26 */
27public final class UidRecord {
28    final int uid;
29    int curProcState;
30    int setProcState = ActivityManager.PROCESS_STATE_NONEXISTENT;
31    long lastBackgroundTime;
32    boolean idle;
33    int numProcs;
34
35    static final int CHANGE_PROCSTATE = 0;
36    static final int CHANGE_GONE = 1;
37    static final int CHANGE_GONE_IDLE = 2;
38    static final int CHANGE_IDLE = 3;
39    static final int CHANGE_ACTIVE = 4;
40
41    static final class ChangeItem {
42        UidRecord uidRecord;
43        int uid;
44        int change;
45        int processState;
46    }
47
48    ChangeItem pendingChange;
49
50    public UidRecord(int _uid) {
51        uid = _uid;
52        reset();
53    }
54
55    public void reset() {
56        curProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY;
57    }
58
59    public String toString() {
60        StringBuilder sb = new StringBuilder(128);
61        sb.append("UidRecord{");
62        sb.append(Integer.toHexString(System.identityHashCode(this)));
63        sb.append(' ');
64        UserHandle.formatUid(sb, uid);
65        sb.append(' ');
66        sb.append(ProcessList.makeProcStateString(curProcState));
67        if (lastBackgroundTime > 0) {
68            sb.append(" bg:");
69            TimeUtils.formatDuration(SystemClock.elapsedRealtime()-lastBackgroundTime, sb);
70        }
71        if (idle) {
72            sb.append(" idle");
73        }
74        sb.append(" procs:");
75        sb.append(numProcs);
76        sb.append("}");
77        return sb.toString();
78    }
79}
80