started more or less MP internet protocols

.idea/misc.xml

@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="17 (5)" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="17 (5)" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

.idea/uiDesigner.xml

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.svg" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>

build.gradle.kts

@@ -17,7 +17,7 @@ repositories {
 
 kotlin {
     jvm {
-        jvmToolchain(11)
+        jvmToolchain(8)
         withJava()
         testRuns.named("test") {
             executionTask.configure {

src/commonMain/kotlin/net/sergeych/kiloparsec/adapter/NetworkProvider.kt

@@ -0,0 +1,37 @@
+package net.sergeych.kiloparsec.adapter
+
+import kotlinx.coroutines.channels.ReceiveChannel
+
+/**
+ * Multiplatform implementation of an internet address.
+ * Notice to implementors. It must provide correct and effective [equals] and [hashCode].
+ */
+interface NetworkAddress {
+    val host: String
+    val port: Int
+}
+
+/**
+ * Multiplatform datagram abstraction
+ */
+interface Datagram {
+    val message: UByteArray
+    val address: NetworkAddress
+    suspend fun respondWith(message: UByteArray)
+}
+interface DatagramReceiver {
+
+    val incoming: ReceiveChannel<Datagram>
+    suspend fun send(message: UByteArray, networkAddress: NetworkAddress)
+    @Suppress("unused")
+    suspend fun send(message: UByteArray, datagramAddress: String) {
+        send(message, networkAddressOf(datagramAddress))
+    }
+
+    suspend fun send(message: UByteArray,host: String,port: Int) =
+        send(message, NetworkAddress(host,port))
+    fun close()
+}
+
+expect fun networkAddressOf(address: String): NetworkAddress
+expect fun NetworkAddress(host: String,port: Int): NetworkAddress

src/jsMain/kotlin/net/sergeych/kiloparsec/adapter/DatagramProvider.js.kt

@@ -0,0 +1,5 @@
+package net.sergeych.kiloparsec.adapter
+
+actual fun networkAddressOf(address: String): NetworkAddress {
+    TODO("Not yet implemented")
+}

src/jsMain/kotlin/net/sergeych/kiloparsec/adapter/NetworkProvider.js.kt

@@ -0,0 +1,5 @@
+package net.sergeych.kiloparsec.adapter
+
+actual fun NetworkAddress(host: String, port: Int): NetworkAddress {
+    TODO("Not yet implemented")
+}

src/jvmMain/kotlin/net/sergeych/kiloparsec/adapter/DatagramProvider.jvm.kt

@@ -0,0 +1,8 @@
+package net.sergeych.kiloparsec.adapter
+
+import java.net.InetAddress
+
+actual fun networkAddressOf(address: String): NetworkAddress {
+    val (host,port) = address.split(":")
+    return JvmNetworkAddress(InetAddress.getByName(host), port.toInt())
+}

src/jvmMain/kotlin/net/sergeych/kiloparsec/adapter/NetworkProvider.jvm.kt

@@ -0,0 +1,6 @@
+package net.sergeych.kiloparsec.adapter
+
+import java.net.InetAddress
+
+actual fun NetworkAddress(host: String, port: Int): NetworkAddress =
+    JvmNetworkAddress(InetAddress.getByName(host), port)

src/jvmMain/kotlin/net/sergeych/kiloparsec/adapter/UdpServer.kt

@@ -0,0 +1,135 @@
+package net.sergeych.kiloparsec.adapter
+
+import kotlinx.coroutines.*
+import kotlinx.coroutines.channels.BufferOverflow
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import net.sergeych.mp_logger.LogTag
+import net.sergeych.mp_logger.exception
+import net.sergeych.mp_logger.info
+import net.sergeych.mp_logger.warning
+import java.net.DatagramPacket
+import java.net.DatagramSocket
+import java.net.InetAddress
+import java.util.concurrent.atomic.AtomicInteger
+
+private val counter = AtomicInteger(0)
+
+class JvmNetworkAddress(val inetAddress: InetAddress, override val port: Int) : NetworkAddress {
+    override val host: String by lazy { inetAddress.hostName }
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other !is JvmNetworkAddress) return false
+
+        if (inetAddress != other.inetAddress) return false
+        if (port != other.port) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = inetAddress.hashCode()
+        result = 31 * result + port
+        return result
+    }
+
+}
+
+class UdpDatagram(override val message: UByteArray, val inetAddress: InetAddress, val port: Int) : Datagram {
+
+    override val address: NetworkAddress by lazy {
+        JvmNetworkAddress(inetAddress, port)
+    }
+
+    private val access = Mutex()
+
+    private var socket: DatagramSocket? = null
+    override suspend fun respondWith(message: UByteArray) {
+        withContext(Dispatchers.IO) {
+            access.withLock {
+                if (socket == null) socket = DatagramSocket()
+                val packet = DatagramPacket(
+                    message.toByteArray(),
+                    message.size,
+                    inetAddress,
+                    port
+                )
+                socket!!.send(packet)
+            }
+        }
+    }
+}
+
+@OptIn(DelicateCoroutinesApi::class)
+class UdpServer(val port: Int) :
+    DatagramReceiver, LogTag("UDPS:${counter.incrementAndGet()}") {
+    private var isClosed = false
+
+
+    private val deferredSocket = CompletableDeferred<DatagramSocket>()
+    private var job: Job? = null
+
+    private suspend fun start() = try {
+        coroutineScope {
+            val socket = DatagramSocket(port)
+            val buffer = ByteArray(16384)
+            val packet = DatagramPacket(buffer, buffer.size)
+            deferredSocket.complete(socket)
+            while (isActive && !isClosed) {
+                try {
+                    socket.receive(packet)
+                    val data = packet.data.sliceArray(0..<packet.length)
+                    val datagram = UdpDatagram(data.toUByteArray(), packet.address, packet.port)
+                    if (!channel.trySend(datagram).isSuccess) {
+                        warning { "packet lost!" }
+                        // and we cause overflow that overwrites the oldest
+                        channel.send(datagram)
+                    }
+                } catch (e: Exception) {
+                    if (!isClosed)
+                        e.printStackTrace()
+                    throw e
+                }
+            }
+            info { "closing socket and reception loop" }
+
+        }
+    } catch (_: CancellationException) {
+        info { "server is closed" }
+    } catch (t: Throwable) {
+        exception { "unexpected end of server" to t }
+    }
+
+    init {
+        job = GlobalScope.launch(Dispatchers.IO) {
+            start()
+        }
+    }
+
+    override fun close() {
+        if (!isClosed) {
+            if (deferredSocket.isCompleted) {
+                runCatching {
+                    deferredSocket.getCompleted().close()
+                }
+            }
+            isClosed = true
+            job?.cancel(); job = null
+        }
+    }
+
+    private val channel = Channel<Datagram>(2048, BufferOverflow.DROP_OLDEST)
+    override val incoming = channel
+
+    override suspend fun send(message: UByteArray, networkAddress: NetworkAddress) {
+        networkAddress as JvmNetworkAddress
+        withContext(Dispatchers.IO) {
+            val packet = DatagramPacket(
+                message.toByteArray(), message.size,
+                networkAddress.inetAddress, networkAddress.port
+            )
+            deferredSocket.await().send(packet)
+        }
+    }
+}

src/jvmTest/kotlin/net/sergeych/kiloparsec/adapters/UServerTest.kt

@@ -0,0 +1,26 @@
+package net.sergeych.kiloparsec.adapters
+
+import com.ionspin.kotlin.crypto.util.encodeToUByteArray
+import kotlinx.coroutines.test.runTest
+import net.sergeych.kiloparsec.adapter.UdpServer
+import net.sergeych.mp_logger.Log
+import org.junit.jupiter.api.Assertions.assertEquals
+import kotlin.test.Test
+
+class UServerTest {
+
+    @Test
+    fun udpProvider() = runTest {
+        Log.connectConsole(Log.Level.DEBUG)
+        val s1 = UdpServer(17120)
+        val s2 = UdpServer(17121)
+        s1.send("Hello".encodeToUByteArray(), "localhost",17121)
+        val d1 = s2.incoming.receive()
+        assertEquals(d1.address.port, 17120)
+        assertEquals("Hello", d1.message.toByteArray().decodeToString())
+        d1.respondWith("world".encodeToUByteArray())
+        assertEquals("world", s1.incoming.receive().message.toByteArray().decodeToString())
+    //        println("s1: ${s1.bindAddress()}")
+
+    }
+}

src/nativeMain/kotlin/net/sergeych/kiloparsec/adapter/DatagramProvider.native.kt

@@ -0,0 +1,5 @@
+package net.sergeych.kiloparsec.adapter
+
+actual fun networkAddressOf(address: String): NetworkAddress {
+    TODO("Not yet implemented")
+}

src/nativeMain/kotlin/net/sergeych/kiloparsec/adapter/NetworkProvider.native.kt

@@ -0,0 +1,5 @@
+package net.sergeych.kiloparsec.adapter
+
+actual fun NetworkAddress(host: String, port: Int): NetworkAddress {
+    TODO("Not yet implemented")
+}