IServiceManager.h revision f56042d6a496fca2e5cfc1f598251f77a9bc7986 
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    static const int DUMP_PRIORITY_CRITICAL = 1 << 0;
38    static const int DUMP_PRIORITY_HIGH = 1 << 1;
39    static const int DUMP_PRIORITY_NORMAL = 1 << 2;
40    static const int DUMP_PRIORITY_ALL =
41            DUMP_PRIORITY_CRITICAL | DUMP_PRIORITY_HIGH | DUMP_PRIORITY_NORMAL;
42
43    /**
44     * Retrieve an existing service, blocking for a few seconds
45     * if it doesn't yet exist.
46     */
47    virtual sp<IBinder>         getService( const String16& name) const = 0;
48
49    /**
50     * Retrieve an existing service, non-blocking.
51     */
52    virtual sp<IBinder>         checkService( const String16& name) const = 0;
53
54    /**
55     * Register a service.
56     */
57    virtual status_t addService(const String16& name, const sp<IBinder>& service,
58                                bool allowIsolated = false,
59                                int dumpsysPriority = DUMP_PRIORITY_NORMAL) = 0;
60
61    /**
62     * Return list of all existing services.
63     */
64    virtual Vector<String16> listServices(int dumpsysPriority = DUMP_PRIORITY_ALL) = 0;
65
66    enum {
67        GET_SERVICE_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
68        CHECK_SERVICE_TRANSACTION,
69        ADD_SERVICE_TRANSACTION,
70        LIST_SERVICES_TRANSACTION,
71    };
72};
73
74sp<IServiceManager> defaultServiceManager();
75
76template<typename INTERFACE>
77status_t getService(const String16& name, sp<INTERFACE>* outService)
78{
79    const sp<IServiceManager> sm = defaultServiceManager();
80    if (sm != NULL) {
81        *outService = interface_cast<INTERFACE>(sm->getService(name));
82        if ((*outService) != NULL) return NO_ERROR;
83    }
84    return NAME_NOT_FOUND;
85}
86
87bool checkCallingPermission(const String16& permission);
88bool checkCallingPermission(const String16& permission,
89                            int32_t* outPid, int32_t* outUid);
90bool checkPermission(const String16& permission, pid_t pid, uid_t uid);
91
92}; // namespace android
93
94#endif // ANDROID_ISERVICE_MANAGER_H
95
96