1e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum/* 2e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * Copyright (C) 2017 The Android Open Source Project 3e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * 4e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * Licensed under the Apache License, Version 2.0 (the "License"); 5e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * you may not use this file except in compliance with the License. 6e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * You may obtain a copy of the License at 7e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * 8e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * http://www.apache.org/licenses/LICENSE-2.0 9e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * 10e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * Unless required by applicable law or agreed to in writing, software 11e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * distributed under the License is distributed on an "AS IS" BASIS, 12e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * See the License for the specific language governing permissions and 14e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * limitations under the License. 15e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum */ 16e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 17e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum#include <memory> 18e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 19e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum#include <binder/Parcel.h> 20e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 21e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum#include "LowpanBeaconInfoTest.h" 22e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 23e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaumusing android::net::lowpan::LowpanBeaconInfo; 24e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 25e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum/** 26e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * Reads exactly one LowpanBeaconInfo from 'parcelData' assuming that it is a Parcel. Any bytes afterward 27e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * are ignored. 28e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum */ 29e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaumstatic LowpanBeaconInfo unmarshall(JNIEnv* env, jbyteArray parcelData) { 30e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum const int length = env->GetArrayLength(parcelData); 31e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 32e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum std::unique_ptr<uint8_t> bytes(new uint8_t[length]); 33e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum env->GetByteArrayRegion(parcelData, 0, length, reinterpret_cast<jbyte*>(bytes.get())); 34e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 35e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum android::Parcel p; 36e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum p.setData(bytes.get(), length); 37e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 38e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum LowpanBeaconInfo value; 39e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum value.readFromParcel(&p); 40e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum return value; 41e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum} 42e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 43e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum/** 44e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * Creates a Java byte[] array and writes the contents of 'addr' to it as a Parcel containing 45e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * exactly one object. 46e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * 47e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * Every LowpanBeaconInfo maps to a unique parcel object, so both 'marshall(e, unmarshall(e, x))' and 48e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum * 'unmarshall(e, marshall(e, x))' should be fixed points. 49e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum */ 50e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaumstatic jbyteArray marshall(JNIEnv* env, const LowpanBeaconInfo& addr) { 51e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum android::Parcel p; 52e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum addr.writeToParcel(&p); 53e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum const int length = p.dataSize(); 54e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 55e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum jbyteArray parcelData = env->NewByteArray(length); 56e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum env->SetByteArrayRegion(parcelData, 0, length, reinterpret_cast<const jbyte*>(p.data())); 57e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 58e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum return parcelData; 59e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum} 60e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum 61e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaumextern "C" 62e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert QuattlebaumJNIEXPORT jbyteArray Java_android_net_lowpan_LowpanBeaconInfoTest_readAndWriteNative(JNIEnv* env, jclass, 63e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum jbyteArray inParcel) { 64e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum const LowpanBeaconInfo value = unmarshall(env, inParcel); 65e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum return marshall(env, value); 66e6a1be5f36c91c12ba89bca99233bdb9d7b448e0Robert Quattlebaum} 67