1 /* 2 * Copyright (C) 2006 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 package android.os; 18 19 import android.annotation.UnsupportedAppUsage; 20 21 /** 22 * Basic interface for finding and publishing system services. 23 * 24 * An implementation of this interface is usually published as the 25 * global context object, which can be retrieved via 26 * BinderNative.getContextObject(). An easy way to retrieve this 27 * is with the static method BnServiceManager.getDefault(). 28 * 29 * @hide 30 */ 31 public interface IServiceManager extends IInterface 32 { 33 /** 34 * Retrieve an existing service called @a name from the 35 * service manager. Blocks for a few seconds waiting for it to be 36 * published if it does not already exist. 37 */ 38 @UnsupportedAppUsage 39 IBinder getService(String name) throws RemoteException; 40 41 /** 42 * Retrieve an existing service called @a name from the 43 * service manager. Non-blocking. 44 */ 45 @UnsupportedAppUsage 46 IBinder checkService(String name) throws RemoteException; 47 48 /** 49 * Place a new @a service called @a name into the service 50 * manager. 51 */ 52 void addService(String name, IBinder service, boolean allowIsolated, int dumpFlags) 53 throws RemoteException; 54 55 /** 56 * Return a list of all currently running services. 57 */ 58 String[] listServices(int dumpFlags) throws RemoteException; 59 60 /** 61 * Assign a permission controller to the service manager. After set, this 62 * interface is checked before any services are added. 63 */ 64 void setPermissionController(IPermissionController controller) 65 throws RemoteException; 66 67 static final String descriptor = "android.os.IServiceManager"; 68 69 int GET_SERVICE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION; 70 int CHECK_SERVICE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+1; 71 int ADD_SERVICE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+2; 72 int LIST_SERVICES_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+3; 73 int CHECK_SERVICES_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+4; 74 int SET_PERMISSION_CONTROLLER_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+5; 75 76 /* 77 * Must update values in IServiceManager.h 78 */ 79 /* Allows services to dump sections according to priorities. */ 80 int DUMP_FLAG_PRIORITY_CRITICAL = 1 << 0; 81 int DUMP_FLAG_PRIORITY_HIGH = 1 << 1; 82 int DUMP_FLAG_PRIORITY_NORMAL = 1 << 2; 83 /** 84 * Services are by default registered with a DEFAULT dump priority. DEFAULT priority has the 85 * same priority as NORMAL priority but the services are not called with dump priority 86 * arguments. 87 */ 88 int DUMP_FLAG_PRIORITY_DEFAULT = 1 << 3; 89 int DUMP_FLAG_PRIORITY_ALL = DUMP_FLAG_PRIORITY_CRITICAL | DUMP_FLAG_PRIORITY_HIGH 90 | DUMP_FLAG_PRIORITY_NORMAL | DUMP_FLAG_PRIORITY_DEFAULT; 91 /* Allows services to dump sections in protobuf format. */ 92 int DUMP_FLAG_PROTO = 1 << 4; 93 94 } 95
