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/*
* Copyright (C) 2016 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.
*/
#ifndef ANDROID_OS_HW_REMOTE_BINDER_H
#define ANDROID_OS_HW_REMOTE_BINDER_H
#include <android-base/macros.h>
#include <hwbinder/Binder.h>
#include <jni.h>
#include <utils/Mutex.h>
#include <utils/RefBase.h>
#include <vector>
namespace android {
// Per-IBinder death recipient bookkeeping. This is how we reconcile local jobject
// death recipient references passed in through JNI with the permanent corresponding
// HwBinderDeathRecipient objects.
class HwBinderDeathRecipient;
class HwBinderDeathRecipientList : public RefBase {
std::vector<sp<HwBinderDeathRecipient>> mList;
Mutex mLock;
public:
HwBinderDeathRecipientList();
~HwBinderDeathRecipientList();
void add(const sp<HwBinderDeathRecipient>& recipient);
void remove(const sp<HwBinderDeathRecipient>& recipient);
// finds the most recently added matching death recipient
sp<HwBinderDeathRecipient> find(jobject recipient);
Mutex& lock(); // Use with care; specifically for mutual exclusion during binder death
};
struct JHwRemoteBinder : public RefBase {
static void InitClass(JNIEnv *env);
static sp<JHwRemoteBinder> SetNativeContext(
JNIEnv *env, jobject thiz, const sp<JHwRemoteBinder> &context);
static sp<JHwRemoteBinder> GetNativeContext(JNIEnv *env, jobject thiz);
static jobject NewObject(JNIEnv *env, const sp<hardware::IBinder> &binder);
JHwRemoteBinder(
JNIEnv *env, jobject thiz, const sp<hardware::IBinder> &binder);
sp<hardware::IBinder> getBinder() const;
void setBinder(const sp<hardware::IBinder> &binder);
sp<HwBinderDeathRecipientList> getDeathRecipientList() const;
protected:
virtual ~JHwRemoteBinder();
private:
jobject mObject;
sp<hardware::IBinder> mBinder;
sp<HwBinderDeathRecipientList> mDeathRecipientList;
DISALLOW_COPY_AND_ASSIGN(JHwRemoteBinder);
};
int register_android_os_HwRemoteBinder(JNIEnv *env);
} // namespace android
#endif // ANDROID_OS_HW_REMOTE_BINDER_H
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