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 #include "wificond/scanning/single_scan_settings.h" 18 19 #include <android-base/logging.h> 20 21 #include "wificond/parcelable_utils.h" 22 23 using android::status_t; 24 25 namespace com { 26 namespace android { 27 namespace server { 28 namespace wifi { 29 namespace wificond { 30 writeToParcel(::android::Parcel * parcel) const31status_t SingleScanSettings::writeToParcel(::android::Parcel* parcel) const { 32 RETURN_IF_FAILED(parcel->writeInt32(channel_settings_.size())); 33 for (const auto& channel : channel_settings_) { 34 // For Java readTypedList(): 35 // A leading number 1 means this object is not null. 36 RETURN_IF_FAILED(parcel->writeInt32(1)); 37 RETURN_IF_FAILED(channel.writeToParcel(parcel)); 38 } 39 RETURN_IF_FAILED(parcel->writeInt32(hidden_networks_.size())); 40 for (const auto& network : hidden_networks_) { 41 // For Java readTypedList(): 42 // A leading number 1 means this object is not null. 43 RETURN_IF_FAILED(parcel->writeInt32(1)); 44 RETURN_IF_FAILED(network.writeToParcel(parcel)); 45 } 46 return ::android::OK; 47 } 48 readFromParcel(const::android::Parcel * parcel)49status_t SingleScanSettings::readFromParcel(const ::android::Parcel* parcel) { 50 int32_t num_channels = 0; 51 RETURN_IF_FAILED(parcel->readInt32(&num_channels)); 52 // Convention used by Java side writeTypedList(): 53 // -1 means a null list. 54 // 0 means an empty list. 55 // Both are mapped to an empty vector in C++ code. 56 for (int i = 0; i < num_channels; i++) { 57 ChannelSettings channel; 58 // From Java writeTypedList(): 59 // A leading number 1 means this object is not null. 60 // We never expect a 0 or other values here. 61 int32_t leading_number = 0; 62 RETURN_IF_FAILED(parcel->readInt32(&leading_number)); 63 if (leading_number != 1) { 64 LOG(ERROR) << "Unexpected leading number before an object: " 65 << leading_number; 66 return ::android::BAD_VALUE; 67 } 68 RETURN_IF_FAILED(channel.readFromParcel(parcel)); 69 channel_settings_.push_back(channel); 70 } 71 int32_t num_hidden_networks = 0; 72 RETURN_IF_FAILED(parcel->readInt32(&num_hidden_networks)); 73 // Convention used by Java side writeTypedList(): 74 // -1 means a null list. 75 // 0 means an empty list. 76 // Both are mapped to an empty vector in C++ code. 77 for (int i = 0; i < num_hidden_networks; i++) { 78 HiddenNetwork network; 79 // From Java writeTypedList(): 80 // A leading number 1 means this object is not null. 81 // We never expect a 0 or other values here. 82 int32_t leading_number = 0; 83 RETURN_IF_FAILED(parcel->readInt32(&leading_number)); 84 if (leading_number != 1) { 85 LOG(ERROR) << "Unexpected leading number before an object: " 86 << leading_number; 87 return ::android::BAD_VALUE; 88 } 89 RETURN_IF_FAILED(network.readFromParcel(parcel)); 90 hidden_networks_.push_back(network); 91 } 92 return ::android::OK; 93 } 94 95 } // namespace wificond 96 } // namespace wifi 97 } // namespace server 98 } // namespace android 99 } // namespace com 100