1 /* 2 * Copyright (C) 2016 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 #ifndef ANDROID_OS_HW_REMOTE_BINDER_H 18 #define ANDROID_OS_HW_REMOTE_BINDER_H 19 20 #include <android-base/macros.h> 21 #include <hwbinder/Binder.h> 22 #include <jni.h> 23 #include <utils/List.h> 24 #include <utils/Mutex.h> 25 #include <utils/RefBase.h> 26 27 namespace android { 28 29 // Per-IBinder death recipient bookkeeping. This is how we reconcile local jobject 30 // death recipient references passed in through JNI with the permanent corresponding 31 // HwBinderDeathRecipient objects. 32 33 class HwBinderDeathRecipient; 34 35 class HwBinderDeathRecipientList : public RefBase { 36 List< sp<HwBinderDeathRecipient> > mList; 37 Mutex mLock; 38 39 public: 40 HwBinderDeathRecipientList(); 41 ~HwBinderDeathRecipientList(); 42 43 void add(const sp<HwBinderDeathRecipient>& recipient); 44 void remove(const sp<HwBinderDeathRecipient>& recipient); 45 sp<HwBinderDeathRecipient> find(jobject recipient); 46 47 Mutex& lock(); // Use with care; specifically for mutual exclusion during binder death 48 }; 49 50 struct JHwRemoteBinder : public RefBase { 51 static void InitClass(JNIEnv *env); 52 53 static sp<JHwRemoteBinder> SetNativeContext( 54 JNIEnv *env, jobject thiz, const sp<JHwRemoteBinder> &context); 55 56 static sp<JHwRemoteBinder> GetNativeContext(JNIEnv *env, jobject thiz); 57 58 static jobject NewObject(JNIEnv *env, const sp<hardware::IBinder> &binder); 59 60 JHwRemoteBinder( 61 JNIEnv *env, jobject thiz, const sp<hardware::IBinder> &binder); 62 63 sp<hardware::IBinder> getBinder() const; 64 void setBinder(const sp<hardware::IBinder> &binder); 65 sp<HwBinderDeathRecipientList> getDeathRecipientList() const; 66 67 protected: 68 virtual ~JHwRemoteBinder(); 69 70 private: 71 jobject mObject; 72 73 sp<hardware::IBinder> mBinder; 74 sp<HwBinderDeathRecipientList> mDeathRecipientList; 75 DISALLOW_COPY_AND_ASSIGN(JHwRemoteBinder); 76 }; 77 78 int register_android_os_HwRemoteBinder(JNIEnv *env); 79 80 } // namespace android 81 82 #endif // ANDROID_OS_HW_REMOTE_BINDER_H 83 84
