import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.security.MessageDigest;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for comparing instance creation of {@link MessageDigest}s.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class MessageDigestCreationBenchmark {

  @Param({"MD5", "SHA-1", "SHA-256", "SHA-384", "SHA-512"})

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.security.MessageDigest;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for comparing instance creation of {@link MessageDigest}s.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class MessageDigestCreationBenchmark {

  @Param({"MD5", "SHA-1", "SHA-256", "SHA-384", "SHA-512"})

import com.google.caliper.Param;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for comparing {@link MessageDigest}s and {@link com.google.common.hash.HashFunction}s
 * that wrap {@link MessageDigest}s.
 *
 * <p>Parameters for the benchmark are:
 *
 * <ul>
 *   <li>size: The length of the byte array to hash.

  SHA1(sha1()),
  SHA256(sha256()),
  SHA384(sha384()),
  SHA512(sha512()),
  SIP_HASH24(sipHash24()),
  FARMHASH_FINGERPRINT_64(farmHashFingerprint64()),

  // Hash functions found in //javatests for comparing against current implementation of CityHash.
  // These can probably be removed sooner or later.
  ;

  private final HashFunction hashFunction;

  HashFunctionEnum(HashFunction hashFunction) {

  SHA1(sha1()),
  SHA256(sha256()),
  SHA384(sha384()),
  SHA512(sha512()),
  SIP_HASH24(sipHash24()),
  FARMHASH_FINGERPRINT_64(farmHashFingerprint64()),

  // Hash functions found in //javatests for comparing against current implementation of CityHash.
  // These can probably be removed sooner or later.
  ;

  private final HashFunction hashFunction;

  HashFunctionEnum(HashFunction hashFunction) {

import java.util.List;
import java.util.Random;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import org.jspecify.annotations.NullUnmarked;

/** A benchmark comparing the various striped implementations. */
@VmOptions({"-Xms12g", "-Xmx12g", "-d64"})
@NullUnmarked
public class StripedBenchmark {
  private static final Supplier<Lock> LOCK_SUPPLIER =
      new Supplier<Lock>() {

  @MapFeature.Require(SUPPORTS_REMOVE)
  /*
   * SetMultimap.asMap essentially returns a Map<K, Set<V>>; we just can't declare it that way.
   * Thus, calls like asMap().values().remove(someSet) are safe because they are comparing a set to
   * a collection of other sets.
   */
  @SuppressWarnings("CollectionUndefinedEquality")
  public void testValuesRemove() {
    resetContainer(mapEntry(k0(), v0()), mapEntry(k1(), v0()), mapEntry(k0(), v3()));

    assertEquals(getNumElements() - 1, multimap().size());
    assertFalse(multimap().containsEntry(k0(), v0()));
  }

  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require(SUPPORTS_REMOVE)
  /*
   * We are comparing Multimaps of the same type, so as long as they have value collections that
   * implement equals() (as with ListMultimap or SetMultimap, as opposed to a QueueMultimap or
   * something), our equality check is value-based.
   */

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for comparing the various {@link HashFunction functions} that we provide.
 *
 * <p>Parameters for the benchmark are:
 *
 * <ul>
 *   <li>size: The length of the byte array to hash.

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for comparing the various {@link HashFunction functions} that we provide.
 *
 * <p>Parameters for the benchmark are:
 *
 * <ul>
 *   <li>size: The length of the byte array to hash.