IServiceManager.h revision 64afc024d760e31f3f41e0c5cb8fc543c9392ef1 
1/*
2 * Copyright (C) 2005 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//
18#ifndef ANDROID_ISERVICE_MANAGER_H
19#define ANDROID_ISERVICE_MANAGER_H
20
21#include <binder/IInterface.h>
22#include <binder/IPermissionController.h>
23#include <utils/Vector.h>
24#include <utils/String16.h>
25
26namespace android {
27
28// ----------------------------------------------------------------------
29
30class IServiceManager : public IInterface
31{
32public:
33    DECLARE_META_INTERFACE(ServiceManager)
34    /**
35     * Must match values in IServiceManager.java
36     */
37    /* Allows services to dump sections according to priorities. */
38    static const int DUMP_FLAG_PRIORITY_CRITICAL = 1 << 0;
39    static const int DUMP_FLAG_PRIORITY_HIGH = 1 << 1;
40    static const int DUMP_FLAG_PRIORITY_NORMAL = 1 << 2;
41    /**
42     * Services are by default registered with a DEFAULT dump priority. DEFAULT priority has the
43     * same priority as NORMAL priority but the services are not called with dump priority
44     * arguments.
45     */
46    static const int DUMP_FLAG_PRIORITY_DEFAULT = 1 << 3;
47    static const int DUMP_FLAG_PRIORITY_ALL = DUMP_FLAG_PRIORITY_CRITICAL |
48            DUMP_FLAG_PRIORITY_HIGH | DUMP_FLAG_PRIORITY_NORMAL | DUMP_FLAG_PRIORITY_DEFAULT;
49    static const int DUMP_FLAG_PROTO = 1 << 4;
50
51    /**
52     * Retrieve an existing service, blocking for a few seconds
53     * if it doesn't yet exist.
54     */
55    virtual sp<IBinder>         getService( const String16& name) const = 0;
56
57    /**
58     * Retrieve an existing service, non-blocking.
59     */
60    virtual sp<IBinder>         checkService( const String16& name) const = 0;
61
62    /**
63     * Register a service.
64     */
65    virtual status_t addService(const String16& name, const sp<IBinder>& service,
66                                bool allowIsolated = false,
67                                int dumpsysFlags = DUMP_FLAG_PRIORITY_DEFAULT) = 0;
68
69    /**
70     * Return list of all existing services.
71     */
72    virtual Vector<String16> listServices(int dumpsysFlags = DUMP_FLAG_PRIORITY_ALL) = 0;
73
74    enum {
75        GET_SERVICE_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
76        CHECK_SERVICE_TRANSACTION,
77        ADD_SERVICE_TRANSACTION,
78        LIST_SERVICES_TRANSACTION,
79    };
80};
81
82sp<IServiceManager> defaultServiceManager();
83
84template<typename INTERFACE>
85status_t getService(const String16& name, sp<INTERFACE>* outService)
86{
87    const sp<IServiceManager> sm = defaultServiceManager();
88    if (sm != NULL) {
89        *outService = interface_cast<INTERFACE>(sm->getService(name));
90        if ((*outService) != NULL) return NO_ERROR;
91    }
92    return NAME_NOT_FOUND;
93}
94
95bool checkCallingPermission(const String16& permission);
96bool checkCallingPermission(const String16& permission,
97                            int32_t* outPid, int32_t* outUid);
98bool checkPermission(const String16& permission, pid_t pid, uid_t uid);
99
100}; // namespace android
101
102#endif // ANDROID_ISERVICE_MANAGER_H
103
104