err  error
		want bool
	}{
		0: {
			pc:   &persistConn{reused: false},
			req:  dummyRequest("POST"),
			err:  nothingWrittenError{},
			want: false,
		},
		1: {
			pc:   &persistConn{reused: true},
			req:  dummyRequest("POST"),
			err:  nothingWrittenError{},
			want: true,
		},
		2: {
			pc:   &persistConn{reused: true},
			req:  dummyRequest("POST"),
			err:  http2ErrNoCachedConn,

    // Everything is up-to-date
    object Valid : CheckedFingerprint()

    // The entry cannot be reused at all and should be recreated from scratch
    class EntryInvalid(val reason: String) : CheckedFingerprint()

    // The entry can be reused, however the values for certain projects cannot be reused and should be recreated
    class ProjectsInvalid(val reason: String, val invalidProjects: Set<Path>) : CheckedFingerprint()

/**
 * @see ServiceScope
 */
public interface Scope {

    /**
     * These services are reused across builds in the same process.
     *
     * <p>Global services are visible to all other services.</p>
     */
    interface Global extends Scope {}

    /**
     * These services are reused across builds in the same process while the Gradle user home directory remains unchanged.

 */
@ServiceScope(Scope.Global.class)
public interface GradleModuleServices extends ServiceRegistrationProvider {
    /**
     * Called once per process, to register any globally scoped services. These services are reused across builds in the same process.
     * The services are closed when the process finishes.
     *
     * <p>Global services are visible to all other services.</p>
     *
     * @see Scope.Global
     */

        buildFile << """
            plugins.apply(my.MyPlugin)
            println("configuring root")
        """
    }

    def "parameterized models are reused in the same build action"() {
        when:
        executer.withArguments(ENABLE_CLI)
        def models = runBuildAction(new FetchParameterizedCustomModelForEachProject(["fetch1", "fetch2", "fetch1", "fetch2"]))

import org.gradle.internal.cc.impl.fixtures.SomeToolingModel

class IsolatedProjectsToolingApiParallelModelQueryIntegrationTest extends AbstractIsolatedProjectsToolingApiIntegrationTest {

    def "intermediate model is cached and reused for nested concurrent requests"() {
        // Sleep to ensure concurrent requests for the same model catch up before the first one is finished
        withSomeToolingModelBuilderPluginInBuildSrc("""
            Thread.sleep(3000)

        dir.createFile("file3")
        configurationCacheRun("report")

        then:
        fixture.assertStateStored()
        outputContains("Calculating task graph as configuration cache cannot be reused because an input to build file 'build.gradle' has changed.")
        outputContains(output2)

        when:
        configurationCacheRun("report")

        then:
        fixture.assertStateLoaded()

        when:
        configurationCacheRun "help", "--offline"
        then:
        configurationCache.assertStateStored()

        // Now repeat invocations in different order to make sure both entries can be reused
        when:
        configurationCacheRun "help"
        then:
        configurationCache.assertStateLoaded()

        when:
        configurationCacheRun "help", "--offline"
        then:

        result.assertHasPostBuildOutput("Configuration cache entry stored.")

        when:
        configurationCacheRun("ok")

        then:
        result.assertHasPostBuildOutput("Configuration cache entry reused.")

        when:
        configurationCacheFails("broken")

        then:
        outputContains("Configuration cache entry discarded with 2 problems.")
        problems.assertFailureHasProblems(failure) {

	// TODO(go.dev/issue/67642): When there are concurrent Wait calls, one
	// may wait on the wrong process if the PID is reused after the
	// completes its wait.
	//
	// Checking for statusDone here would not be a complete fix, as the PID
	// could still be waited on and reused prior to blockUntilWaitable.
	switch p.pidStatus() {
	case statusReleased:
		return nil, syscall.EINVAL
	}