/* * Copyright (c) 2022 Huawei Device Co., Ltd. * 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. */ #include "demo_proxy.h" #include "iremote_object.h" #include "message_option.h" #include "message_parcel.h" namespace OHOS { namespace { const int DEFAULT_INT_RET = -1; } int DemoProxy::AddVolume(int volume) { auto remote = Remote(); if (remote == nullptr) { return DEFAULT_INT_RET; } MessageParcel data; data.WriteInt32(volume); MessageParcel reply; MessageOption option; remote->SendRequest(ADD_VOLUME, data, reply, option); int32_t result = reply.ReadInt32(); return result; } }