adamw

//> using dep com.softwaremill.sttp.openai::ox:0.2.2
//> using dep com.softwaremill.sttp.tapir::tapir-netty-server-sync:1.11.2
//> using dep com.softwaremill.sttp.client4::ox:4.0.0-M17
//> using dep com.softwaremill.ox::core:0.3.6
//> using dep ch.qos.logback:logback-classic:1.5.7

// Remember to set the OPENAI_KEY env variable!

package examples

adamw

import ch.qos.logback.classic.LoggerContext
import ch.qos.logback.classic.spi.LogbackServiceProvider
import org.slf4j.spi.{MDCAdapter, SLF4JServiceProvider}
import org.slf4j.{ILoggerFactory, IMarkerFactory, LoggerFactory, MDC}
import ox.{ForkLocal, pipe, tap}

/** Provides support for MDC which is inheritable across (virtual) threads. Only MDC values set using the [[where]] method will be
  * inherited; this method also defines the scope, within which the provided MDC values are available.
  *
  * The semantics of [[MDC.put]] are unchanged: values set using this method will only be visible in the original thread. That is because

adamw

//> using dep com.softwaremill.sttp.tapir::tapir-netty-server-sync:1.10.7

import ox.channels.{Actor, ActorRef, Channel, ChannelClosed, Default, DefaultResult, selectOrClosed}
import ox.{fork, releaseAfterScope, supervised}
import sttp.tapir.*
import sttp.tapir.CodecFormat.*
import sttp.tapir.server.netty.sync.{Id, NettySyncServer, OxStreams}

import java.util.UUID

adamw

package brc

import monix.eval.Task
import monix.execution
import monix.reactive.Observable

import java.io.{BufferedReader, FileInputStream, InputStreamReader}
import java.text.DecimalFormat

object UsingMonix:

adamw

import java.lang.invoke.MethodHandles;
import java.lang.invoke.VarHandle;
import java.util.concurrent.Exchanger;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.LockSupport;

// with changes inspired by Exchanger
public class Rendezvous2 {
    private volatile Thread waiting;
    private volatile int data = -1; // together with `consumed`, used to transmit data if t1 wins the race (and waits for t2)

adamw

import cats.effect.{Deferred, IO, Ref}
import cats.effect.std.Queue
import cats.effect.unsafe.implicits.global

import java.util.concurrent.Executors
import scala.concurrent.ExecutionContext

// max times rendezvous using cats-effect's synchronous queue
def rendezvousUsingCatsEffect(): Unit =
  val max = 10_000_000

adamw

import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.LockSupport;

public class Rendezvous {
    private final int spinIterations;
    private final int yieldIterations;
    private final AtomicReference<ThreadAndCell> waiting = new AtomicReference<>();

    public Rendezvous(int spinIterations, int yieldIterations) {
        this.spinIterations = spinIterations;

adamw

import java.util.concurrent.Exchanger;
import java.util.concurrent.SynchronousQueue;

public class RendezvousUsingExchanger {
    public static void test() throws Exception {
        long startTime = System.currentTimeMillis();
        final int max = 10_000_000;
        Exchanger<Integer> data = new Exchanger<>();

        Thread t1 = Thread.ofVirtual().start(() -> {

adamw

import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.LockSupport;

// -Djdk.virtualThreadScheduler.parallelism=1 -Djdk.virtualThreadScheduler.maxPoolSize=1 -Djdk.virtualThreadScheduler.minRunnable=1
public class Rendezvous {
    private final int spinIterations;
    private final int yieldIterations;
    private final AtomicReference<ThreadAndCell> waiting = new AtomicReference<>();

    public Rendezvous(int spinIterations, int yieldIterations) {

adamw

import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.locks.LockSupport;

public class Rendezvous {
    private final boolean yieldOnFirstIteration;
    private final AtomicReference<ThreadAndCell> waiting = new AtomicReference<>();

    public Rendezvous(boolean yieldOnFirstIteration) {
        this.yieldOnFirstIteration = yieldOnFirstIteration;
    }