| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.tuweni.net.coroutines |
| |
| import java.io.IOException |
| import java.net.SocketAddress |
| import java.nio.channels.AsynchronousCloseException |
| import java.nio.channels.ClosedByInterruptException |
| import java.nio.channels.ClosedChannelException |
| import java.nio.channels.NotYetConnectedException |
| import java.nio.channels.SelectionKey |
| import java.nio.channels.SocketChannel |
| |
| /** |
| * A co-routine based stream-oriented network channel. |
| * |
| */ |
| class CoroutineSocketChannel internal constructor( |
| private val channel: SocketChannel, |
| private val group: CoroutineChannelGroup |
| ) : CoroutineByteChannel, |
| ScatteringCoroutineByteChannel by ScatteringCoroutineByteChannelMixin(channel, group), |
| GatheringCoroutineByteChannel by GatheringCoroutineByteChannelMixin(channel, group), |
| CoroutineNetworkChannel by CoroutineNetworkChannelMixin(channel) { |
| |
| companion object { |
| /** |
| * Opens a socket channel. |
| * |
| * @param selector The selector to use with this channel (defaults to `CommonCoroutineSelector`). |
| * @return A new channel. |
| * @throws IOException If an I/O error occurs. |
| */ |
| fun open(group: CoroutineChannelGroup = CommonCoroutineGroup): CoroutineSocketChannel { |
| val channel = SocketChannel.open() |
| channel.configureBlocking(false) |
| return CoroutineSocketChannel(channel, group) |
| } |
| } |
| |
| init { |
| group.register(this) |
| } |
| |
| override fun close() { |
| group.deRegister(this) |
| channel.close() |
| } |
| |
| /** |
| * Indicates whether this channel is connected. |
| */ |
| val isConnected: Boolean |
| get() = channel.isConnected |
| |
| /** |
| * Get the remote address to which this channel is connected. |
| */ |
| val remoteAddress: SocketAddress |
| get() = channel.remoteAddress |
| |
| override fun bind(local: SocketAddress?): CoroutineSocketChannel { |
| channel.bind(local) |
| return this |
| } |
| |
| /** |
| * Connect this channel. |
| * |
| * @param remote The remote address to which this channel is to be connected. |
| * @return This channel. |
| * @throws ClosedChannelException If the channel is closed. |
| * @throws AsynchronousCloseException If another thread closes this channel while the connect operation is in |
| * progress. |
| * @throws ClosedByInterruptException If another thread interrupts the current thread while the connect operation is |
| * in progress, thereby closing the channel and setting the current thread's interrupt status. |
| * @throws IOException If some other I/O error occurs. |
| */ |
| suspend fun connect(remote: SocketAddress): CoroutineSocketChannel { |
| if (!channel.connect(remote)) { |
| // slow path |
| do { |
| group.select(channel, SelectionKey.OP_CONNECT) |
| } while (!channel.finishConnect()) |
| } |
| return this |
| } |
| |
| /** |
| * Shutdown the connection for reading without closing the channel. |
| * |
| * @return This channel. |
| * @throws NotYetConnectedException If this channel is not yet connected. |
| * @throws ClosedChannelException If the channel is closed. |
| * @throws IOException If some other I/O error occurs. |
| */ |
| fun shutdownInput(): CoroutineSocketChannel { |
| channel.shutdownInput() |
| return this |
| } |
| |
| /** |
| * Shutdown the connection for writing without closing the channel. |
| * |
| * @return This channel. |
| * @throws NotYetConnectedException If this channel is not yet connected. |
| * @throws ClosedChannelException If the channel is closed. |
| * @throws IOException If some other I/O error occurs. |
| */ |
| fun shutdownOutput(): CoroutineSocketChannel { |
| channel.shutdownOutput() |
| return this |
| } |
| } |