58 lines
1.8 KiB
Java
58 lines
1.8 KiB
Java
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/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.system;
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import libcore.util.NonNull;
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import libcore.util.Nullable;
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import java.net.SocketAddress;
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import java.nio.ByteBuffer;
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/**
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* Corresponds to C's {@code struct msghdr}
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*
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*/
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public final class StructMsghdr{
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/**
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* Optional address.
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* <p>Sendmsg: Caller must populate to specify the target address for a datagram, or pass
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* {@code null} to send to the destination of an already-connected socket.
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* Recvmsg: Populated by the system to specify the source address.
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*/
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@Nullable public SocketAddress msg_name;
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/** Scatter/gather array */
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@NonNull public final ByteBuffer[] msg_iov;
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/** Ancillary data */
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@Nullable public StructCmsghdr[] msg_control;
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/** Flags on received message. */
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public int msg_flags;
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/**
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* Constructs an instance with the given field values
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*/
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public StructMsghdr(@Nullable SocketAddress msg_name, @NonNull ByteBuffer[] msg_iov,
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@Nullable StructCmsghdr[] msg_control, int msg_flags) {
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this.msg_name = msg_name;
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this.msg_iov = msg_iov;
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this.msg_control = msg_control;
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this.msg_flags = msg_flags;
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}
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}
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