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 com.android.server.pm;
18
19import android.util.ArraySet;
20
21/**
22 * Settings data for a particular shared user ID we know about.
23 */
24final class SharedUserSetting extends SettingBase {
25    final String name;
26
27    int userId;
28
29    // flags that are associated with this uid, regardless of any package flags
30    int uidFlags;
31    int uidPrivateFlags;
32
33    final ArraySet<PackageSetting> packages = new ArraySet<PackageSetting>();
34
35    final PackageSignatures signatures = new PackageSignatures();
36
37    SharedUserSetting(String _name, int _pkgFlags, int _pkgPrivateFlags) {
38        super(_pkgFlags, _pkgPrivateFlags);
39        uidFlags =  _pkgFlags;
40        uidPrivateFlags = _pkgPrivateFlags;
41        name = _name;
42    }
43
44    @Override
45    public String toString() {
46        return "SharedUserSetting{" + Integer.toHexString(System.identityHashCode(this)) + " "
47                + name + "/" + userId + "}";
48    }
49
50    void removePackage(PackageSetting packageSetting) {
51        if (packages.remove(packageSetting)) {
52            // recalculate the pkgFlags for this shared user if needed
53            if ((this.pkgFlags & packageSetting.pkgFlags) != 0) {
54                int aggregatedFlags = uidFlags;
55                for (PackageSetting ps : packages) {
56                    aggregatedFlags |= ps.pkgFlags;
57                }
58                setFlags(aggregatedFlags);
59            }
60            if ((this.pkgPrivateFlags & packageSetting.pkgPrivateFlags) != 0) {
61                int aggregatedPrivateFlags = uidPrivateFlags;
62                for (PackageSetting ps : packages) {
63                    aggregatedPrivateFlags |= ps.pkgPrivateFlags;
64                }
65                setPrivateFlags(aggregatedPrivateFlags);
66            }
67        }
68    }
69
70    void addPackage(PackageSetting packageSetting) {
71        if (packages.add(packageSetting)) {
72            setFlags(this.pkgFlags | packageSetting.pkgFlags);
73            setPrivateFlags(this.pkgPrivateFlags | packageSetting.pkgPrivateFlags);
74        }
75    }
76}
77