// any size, and never returns an error.
	//
	// "The subsystem is re-seeded from the kernel random number subsystem on a
	// regular basis, and also upon fork(2)." - arc4random(3)
	//
	// Note that despite its legacy name, it uses a secure CSPRNG (not RC4) in
	// all supported macOS versions.
	altGetRandom = func(b []byte) error { unix.ARC4Random(b); return nil }

            import org.gradle.workers.internal.DaemonForkOptions

            allprojects {
                ${applyAndConfigure}

                tasks.withType(${compileTaskType}) {
                    options.fork = true
                    finalizedBy ":writeCompilerIdentities"
                }
            }

            task writeCompilerIdentities {

//
//go:nowritebarrier
func newosproc(mp *m) {
	if false {
		print("newosproc mp=", mp, " ostk=", &mp, "\n")
	}
	pid := rfork(_RFPROC | _RFMEM | _RFNOWAIT)
	if pid < 0 {
		throw("newosproc: rfork failed")
	}
	if pid == 0 {
		tstart_plan9(mp)
	}
}

func exitThread(wait *atomic.Uint32) {
	// We should never reach exitThread on Plan 9 because we let

class InProcessJavaCompilerIntegrationTest extends AbstractJavaCompilerIntegrationSpec {

    @Override
    String compilerConfiguration() {
        """
            compileJava.options.with {
                fork = false
            }
        """
    }

    @Override
    String logStatement() {
        "Java compiler API"
    }

            compileJava {
                options.fork = true
                options.forkOptions.executable = "${TextUtil.normaliseFileSeparators(jdk.javacExecutable.absolutePath)}"
            }
        """
    }

    private TestFile configureForkOptionsJavaHome(Jvm jdk) {
        buildFile << """
            compileJava {
                options.fork = true

            testDirectoryProvider.suppressCleanupErrors()
        }
    }

    String compilerConfiguration() {
'''
    tasks.withType(GroovyCompile) {
        groovyOptions.fork = false
    }
'''
    }

func init() {
	execveLibc = execve
}

// Fork, dup fd onto 0..len(fd), and exec(argv0, argvv, envv) in child.
// If a dup or exec fails, write the errno error to pipe.
// (Pipe is close-on-exec so if exec succeeds, it will be closed.)
// In the child, this function must not acquire any locks, because
// they might have been locked at the time of the fork. This means
// no rescheduling, no malloc calls, and no new stack segments.

Otherwise, the client VM will fork a new VM to run the actual build in order to honor the different settings.
====

Certain tasks, like the `test` task, also fork additional JVM processes.
You can configure these through the tasks themselves.
They use `-Xmx512m` by default.

import org.bouncycastle.jcajce.provider.digest.MD5;
import org.bouncycastle.jcajce.provider.digest.SHA1;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Level;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;

    testImplementation(testFixtures(project(":logging")))

    jmhImplementation(project(":files"))
    jmhImplementation(project(":base-services"))
}

jmh {
    fork = 1
    threads = 2
    warmupIterations = 10
    synchronizeIterations = false