[go: nahoru, domu]
1/*
2 * Copyright (C) 2009 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.os;
18
19import java.util.Map;
20
21public final class ServiceManager {
22
23    /**
24     * Returns a reference to a service with the given name.
25     *
26     * @param name the name of the service to get
27     * @return a reference to the service, or <code>null</code> if the service doesn't exist
28     */
29    public static IBinder getService(String name) {
30        return null;
31    }
32
33    /**
34     * Place a new @a service called @a name into the service
35     * manager.
36     *
37     * @param name the name of the new service
38     * @param service the service object
39     */
40    public static void addService(String name, IBinder service) {
41        // pass
42    }
43
44    /**
45     * Retrieve an existing service called @a name from the
46     * service manager.  Non-blocking.
47     */
48    public static IBinder checkService(String name) {
49        return null;
50    }
51
52    /**
53     * Return a list of all currently running services.
54     * @return an array of all currently running services, or <code>null</code> in
55     * case of an exception
56     */
57    public static String[] listServices() {
58        // actual implementation returns null sometimes, so it's ok
59        // to return null instead of an empty list.
60        return null;
61    }
62
63    /**
64     * This is only intended to be called when the process is first being brought
65     * up and bound by the activity manager. There is only one thread in the process
66     * at that time, so no locking is done.
67     *
68     * @param cache the cache of service references
69     * @hide
70     */
71    public static void initServiceCache(Map<String, IBinder> cache) {
72        // pass
73    }
74}
75