19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage com.android.internal.os; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Binder; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.IBinder; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemClock; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.EventLog; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileDescriptor; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileOutputStream; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.PrintWriter; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.WeakReference; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.Modifier; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Private and debugging Binder APIs. 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see IBinder 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class BinderInternal { 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static WeakReference<GcWatcher> mGcWatcher 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new WeakReference<GcWatcher>(new GcWatcher()); 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static long mLastGcTime; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final class GcWatcher { 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void finalize() throws Throwable { 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handleGc(); 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastGcTime = SystemClock.uptimeMillis(); 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGcWatcher = new WeakReference<GcWatcher>(new GcWatcher()); 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Add the calling thread to the IPC thread pool. This function does 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not return until the current process is exiting. 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void joinThreadPool(); 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the system time (as reported by {@link SystemClock#uptimeMillis 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * SystemClock.uptimeMillis()}) that the last garbage collection occurred 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in this process. This is not for general application use, and the 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * meaning of "when a garbage collection occurred" will change as the 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * garbage collector evolves. 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns the time as per {@link SystemClock#uptimeMillis 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * SystemClock.uptimeMillis()} of the last garbage collection. 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static long getLastGcTime() { 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLastGcTime; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the global "context object" of the system. This is usually 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * an implementation of IServiceManager, which you can use to find 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * other services. 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native IBinder getContextObject(); 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn /** 79887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn * Special for system process to not allow incoming calls to run at 80887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn * background scheduling priority. 81887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn * @hide 82887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn */ 83887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn public static final native void disableBackgroundScheduling(boolean disable); 84887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static native final void handleGc(); 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static void forceGc(String reason) { 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EventLog.writeEvent(2741, reason); 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void forceBinderGc() { 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project forceGc("Binder"); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 96