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Commit 5a859c7d authored by Yisroel Forta's avatar Yisroel Forta
Browse files

APIs for Profiling module initialization

Test: Presubmit, functional test with following cl
Bug: 293957254
Change-Id: I4b23d3168a0b5243c26cd0bb928233aeb8868152
parent 78262c81
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+1 −0
Original line number Diff line number Diff line
@@ -10686,6 +10686,7 @@ package android.content {
    field public static final String PERFORMANCE_HINT_SERVICE = "performance_hint";
    field public static final String POWER_SERVICE = "power";
    field public static final String PRINT_SERVICE = "print";
    field @FlaggedApi("android.os.telemetry_apis_framework_initialization") public static final String PROFILING_SERVICE = "profiling";
    field public static final int RECEIVER_EXPORTED = 2; // 0x2
    field public static final int RECEIVER_NOT_EXPORTED = 4; // 0x4
    field public static final int RECEIVER_VISIBLE_TO_INSTANT_APPS = 1; // 0x1
+13 −0
Original line number Diff line number Diff line
@@ -412,6 +412,19 @@ package android.os {
    field public static final int VPN_UID = 1016; // 0x3f8
  }

  @FlaggedApi("android.os.telemetry_apis_framework_initialization") public class ProfilingServiceManager {
    method @NonNull public android.os.ProfilingServiceManager.ServiceRegisterer getProfilingServiceRegisterer();
  }

  public static class ProfilingServiceManager.ServiceNotFoundException extends java.lang.Exception {
    ctor public ProfilingServiceManager.ServiceNotFoundException(@NonNull String);
  }

  public static final class ProfilingServiceManager.ServiceRegisterer {
    method @Nullable public android.os.IBinder get();
    method @Nullable public android.os.IBinder getOrThrow() throws android.os.ProfilingServiceManager.ServiceNotFoundException;
  }

  public final class ServiceManager {
    method @NonNull public static String[] getDeclaredInstances(@NonNull String);
    method public static boolean isDeclared(@NonNull String);
+9 −0
Original line number Diff line number Diff line
@@ -6552,6 +6552,15 @@ public abstract class Context {
    @FlaggedApi(android.provider.Flags.FLAG_USER_KEYS)
    public static final String CONTACT_KEYS_SERVICE = "contact_keys";

    /**
     * Use with {@link #getSystemService(String)} to retrieve an
     * {@link android.os.ProfilingManager}.
     *
     * @see #getSystemService(String)
     */
    @FlaggedApi(android.os.Flags.FLAG_TELEMETRY_APIS_FRAMEWORK_INITIALIZATION)
    public static final String PROFILING_SERVICE = "profiling";

    /**
     * Determine whether the given permission is allowed for a particular
     * process and user ID running in the system.
+97 −0
Original line number Diff line number Diff line
/*
 * Copyright (C) 2024 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package android.os;

import android.annotation.FlaggedApi;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.annotation.SystemApi.Client;

/**
 * Provides a way to register and obtain the system service binder objects managed by the profiling
 * service.
 *
 * <p> Only the profiling mainline module will be able to access an instance of this class.
 * @hide
 */
@FlaggedApi(Flags.FLAG_TELEMETRY_APIS_FRAMEWORK_INITIALIZATION)
@SystemApi(client = Client.MODULE_LIBRARIES)
public class ProfilingServiceManager {

    /** @hide */
    public ProfilingServiceManager() {}

    /**
     * A class that exposes the methods to register and obtain each system service.
     */
    public static final class ServiceRegisterer {
        private final String mServiceName;

        /** @hide */
        public ServiceRegisterer(String serviceName) {
            mServiceName = serviceName;
        }

        /**
         * Get the system server binding object for ProfilingService.
         *
         * <p> This blocks until the service instance is ready.
         * or a timeout happens, in which case it returns null.
         */
        @Nullable
        public IBinder get() {
            return ServiceManager.getService(mServiceName);
        }

        /**
         * Get the system server binding object for a service.
         *
         * <p>This blocks until the service instance is ready,
         * or a timeout happens, in which case it throws {@link ServiceNotFoundException}.
         */
        @Nullable
        public IBinder getOrThrow() throws ServiceNotFoundException {
            try {
                return ServiceManager.getServiceOrThrow(mServiceName);
            } catch (ServiceManager.ServiceNotFoundException e) {
                throw new ServiceNotFoundException(mServiceName);
            }
        }
    }

    /**
     * See {@link ServiceRegisterer#getOrThrow()}
     */
    public static class ServiceNotFoundException extends ServiceManager.ServiceNotFoundException {
        /**
         * Constructor
         *
         * @param name the name of the binder service that cannot be found.
         */
        public ServiceNotFoundException(@NonNull String name) {
            super(name);
        }
    }

    /**
     * Returns {@link ServiceRegisterer} for the "profiling" service.
     */
    @NonNull
    public ServiceRegisterer getProfilingServiceRegisterer() {
        return new ServiceRegisterer("profiling_service");
    }
}