1dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber/* 2dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * Copyright (C) 2016 The Android Open Source Project 3dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * 4dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * you may not use this file except in compliance with the License. 6dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * You may obtain a copy of the License at 7dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * 8dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * 10dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * Unless required by applicable law or agreed to in writing, software 11dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * See the License for the specific language governing permissions and 14dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber * limitations under the License. 15dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber */ 16dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 17dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber#ifndef ANDROID_OS_HW_REMOTE_BINDER_H 18dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber#define ANDROID_OS_HW_REMOTE_BINDER_H 19dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 20dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber#include <android-base/macros.h> 21dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber#include <hwbinder/Binder.h> 22dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber#include <jni.h> 23727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen#include <utils/List.h> 24727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen#include <utils/Mutex.h> 25dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber#include <utils/RefBase.h> 26dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 27dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Hubernamespace android { 28dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 29727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen// Per-IBinder death recipient bookkeeping. This is how we reconcile local jobject 30727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen// death recipient references passed in through JNI with the permanent corresponding 31727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen// HwBinderDeathRecipient objects. 32727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen 33727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenenclass HwBinderDeathRecipient; 34727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen 35727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenenclass HwBinderDeathRecipientList : public RefBase { 36727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen List< sp<HwBinderDeathRecipient> > mList; 37727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen Mutex mLock; 38727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen 39727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenenpublic: 40727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen HwBinderDeathRecipientList(); 41727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen ~HwBinderDeathRecipientList(); 42727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen 43727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen void add(const sp<HwBinderDeathRecipient>& recipient); 44727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen void remove(const sp<HwBinderDeathRecipient>& recipient); 45727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen sp<HwBinderDeathRecipient> find(jobject recipient); 46727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen 47727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen Mutex& lock(); // Use with care; specifically for mutual exclusion during binder death 48727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen}; 49727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen 50dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huberstruct JHwRemoteBinder : public RefBase { 51dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber static void InitClass(JNIEnv *env); 52dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 53dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber static sp<JHwRemoteBinder> SetNativeContext( 54dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber JNIEnv *env, jobject thiz, const sp<JHwRemoteBinder> &context); 55dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 56dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber static sp<JHwRemoteBinder> GetNativeContext(JNIEnv *env, jobject thiz); 57dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 58dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber static jobject NewObject(JNIEnv *env, const sp<hardware::IBinder> &binder); 59dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 60dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber JHwRemoteBinder( 61dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber JNIEnv *env, jobject thiz, const sp<hardware::IBinder> &binder); 62dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 63727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen sp<hardware::IBinder> getBinder() const; 64dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber void setBinder(const sp<hardware::IBinder> &binder); 65727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen sp<HwBinderDeathRecipientList> getDeathRecipientList() const; 66dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 67dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huberprotected: 68dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber virtual ~JHwRemoteBinder(); 69dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 70dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huberprivate: 71dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber jobject mObject; 72dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 73dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber sp<hardware::IBinder> mBinder; 74727f7bf84f28765608548a6afe8f54c43a4ccf64Martijn Coenen sp<HwBinderDeathRecipientList> mDeathRecipientList; 75dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber DISALLOW_COPY_AND_ASSIGN(JHwRemoteBinder); 76dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber}; 77dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 78dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huberint register_android_os_HwRemoteBinder(JNIEnv *env); 79dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 80dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber} // namespace android 81dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 82dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber#endif // ANDROID_OS_HW_REMOTE_BINDER_H 83dab5fc65b92b37ee623b10f86a6ccf1709ba17d4Andreas Huber 84