| /* |
| * Copyright (C) 2021 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. |
| */ |
| |
| package android.system; |
| |
| import libcore.util.NonNull; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| |
| /** |
| * Corresponds to C's {@code struct cmsghdr}. |
| * |
| */ |
| public final class StructCmsghdr { |
| /** Originating protocol */ |
| public final int cmsg_level; |
| |
| /** Protocol-specific type */ |
| public final int cmsg_type; |
| |
| /** message data sent/received */ |
| @NonNull public final byte[] cmsg_data; |
| |
| public StructCmsghdr(int cmsg_level, int cmsg_type, short value) { |
| // Short.Size unit is bits, ByteBuffer data unit is bytes |
| ByteBuffer buf = ByteBuffer.allocate(Short.SIZE / 8); |
| buf.order(ByteOrder.nativeOrder()); |
| buf.putShort(value); |
| |
| this.cmsg_level = cmsg_level; |
| this.cmsg_type = cmsg_type; |
| this.cmsg_data = buf.array(); |
| } |
| |
| public StructCmsghdr(int cmsg_level, int cmsg_type, @NonNull byte[] value) { |
| this.cmsg_level = cmsg_level; |
| this.cmsg_type = cmsg_type; |
| this.cmsg_data = value; |
| } |
| |
| } |