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_PARCEL_H
18 #define ANDROID_OS_HW_PARCEL_H
19 
20 #include <android-base/macros.h>
21 #include <hwbinder/IBinder.h>
22 #include <hwbinder/Parcel.h>
23 #include <jni.h>
24 #include <utils/RefBase.h>
25 
26 #include "android_os_HwBlob.h"
27 #include "hwbinder/EphemeralStorage.h"
28 
29 namespace android {
30 
31 struct JHwParcel : public RefBase {
32     static void InitClass(JNIEnv *env);
33 
34     static sp<JHwParcel> SetNativeContext(
35             JNIEnv *env, jobject thiz, const sp<JHwParcel> &context);
36 
37     static sp<JHwParcel> GetNativeContext(JNIEnv *env, jobject thiz);
38 
39     static jobject NewObject(JNIEnv *env);
40 
41     JHwParcel(JNIEnv *env, jobject thiz);
42 
43     void setParcel(hardware::Parcel *parcel, bool assumeOwnership);
44     hardware::Parcel *getParcel();
45 
46     EphemeralStorage *getStorage();
47 
48     void addBlob(const sp<JHwBlob> &blob);
49 
50     void setTransactCallback(::android::hardware::IBinder::TransactCallback cb);
51 
52     void send();
53     bool wasSent() const;
54 
55 protected:
56     virtual ~JHwParcel();
57 
58 private:
59     hardware::Parcel *mParcel;
60     bool mOwnsParcel;
61 
62     EphemeralStorage mStorage;
63 
64     ::android::hardware::IBinder::TransactCallback mTransactCallback;
65     bool mWasSent;
66     std::vector<sp<JHwBlob>> mBlobs;
67 
68     DISALLOW_COPY_AND_ASSIGN(JHwParcel);
69 };
70 
71 void signalExceptionForError(JNIEnv *env, status_t err, bool canThrowRemoteException = false);
72 int register_android_os_HwParcel(JNIEnv *env);
73 
74 }  // namespace android
75 
76 #endif  // ANDROID_OS_HW_PARCEL_H
77