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org.jetbrains.kotlin.daemon.CompileServiceImpl.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.daemon
import com.intellij.openapi.Disposable
import com.intellij.openapi.util.Disposer
import com.intellij.openapi.vfs.impl.ZipHandler
import com.intellij.openapi.vfs.impl.jar.CoreJarFileSystem
import org.jetbrains.kotlin.cli.common.CLICompiler
import org.jetbrains.kotlin.cli.common.ExitCode
import org.jetbrains.kotlin.cli.common.KOTLIN_COMPILER_ENVIRONMENT_KEEPALIVE_PROPERTY
import org.jetbrains.kotlin.cli.common.arguments.CommonCompilerArguments
import org.jetbrains.kotlin.cli.common.arguments.K2JVMCompilerArguments
import org.jetbrains.kotlin.cli.common.arguments.parseCommandLineArguments
import org.jetbrains.kotlin.cli.common.arguments.validateArguments
import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity
import org.jetbrains.kotlin.cli.common.messages.MessageCollector
import org.jetbrains.kotlin.cli.common.messages.MessageRenderer
import org.jetbrains.kotlin.cli.common.messages.PrintingMessageCollector
import org.jetbrains.kotlin.cli.common.modules.ModuleXmlParser
import org.jetbrains.kotlin.cli.common.repl.ReplCheckResult
import org.jetbrains.kotlin.cli.common.repl.ReplCodeLine
import org.jetbrains.kotlin.cli.common.repl.ReplCompileResult
import org.jetbrains.kotlin.cli.common.repl.ReplEvalResult
import org.jetbrains.kotlin.cli.js.K2JSCompiler
import org.jetbrains.kotlin.cli.jvm.K2JVMCompiler
import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
import org.jetbrains.kotlin.cli.metadata.K2MetadataCompiler
import org.jetbrains.kotlin.config.Services
import org.jetbrains.kotlin.daemon.common.*
import org.jetbrains.kotlin.daemon.incremental.RemoteAnnotationsFileUpdater
import org.jetbrains.kotlin.daemon.incremental.RemoteArtifactChangesProvider
import org.jetbrains.kotlin.daemon.incremental.RemoteChangesRegistry
import org.jetbrains.kotlin.daemon.report.CompileServicesFacadeMessageCollector
import org.jetbrains.kotlin.daemon.report.DaemonMessageReporter
import org.jetbrains.kotlin.daemon.report.DaemonMessageReporterPrintStreamAdapter
import org.jetbrains.kotlin.daemon.report.RemoteICReporter
import org.jetbrains.kotlin.incremental.*
import org.jetbrains.kotlin.load.kotlin.incremental.components.IncrementalCompilationComponents
import org.jetbrains.kotlin.modules.Module
import org.jetbrains.kotlin.progress.CompilationCanceledStatus
import java.io.BufferedOutputStream
import java.io.ByteArrayOutputStream
import java.io.File
import java.io.PrintStream
import java.rmi.NoSuchObjectException
import java.rmi.registry.Registry
import java.rmi.server.UnicastRemoteObject
import java.util.*
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicBoolean
import java.util.concurrent.atomic.AtomicInteger
import java.util.concurrent.locks.ReentrantReadWriteLock
import java.util.logging.Level
import java.util.logging.Logger
import kotlin.concurrent.read
import kotlin.concurrent.schedule
import kotlin.concurrent.write
const val REMOTE_STREAM_BUFFER_SIZE = 4096
fun nowSeconds() = TimeUnit.NANOSECONDS.toSeconds(System.nanoTime())
interface CompilerSelector {
operator fun get(targetPlatform: CompileService.TargetPlatform): CLICompiler<*>
}
interface EventManager {
fun onCompilationFinished(f : () -> Unit)
}
private class EventManagerImpl : EventManager {
private val onCompilationFinished = arrayListOf<() -> Unit>()
override fun onCompilationFinished(f: () -> Unit) {
onCompilationFinished.add(f)
}
fun fireCompilationFinished() {
onCompilationFinished.forEach { it() }
}
}
class CompileServiceImpl(
val registry: Registry,
val compiler: CompilerSelector,
val compilerId: CompilerId,
val daemonOptions: DaemonOptions,
val daemonJVMOptions: DaemonJVMOptions,
val port: Int,
val timer: Timer,
val onShutdown: () -> Unit
) : CompileService {
private val log by lazy { Logger.getLogger("compiler") }
init {
System.setProperty(KOTLIN_COMPILER_ENVIRONMENT_KEEPALIVE_PROPERTY, "true")
}
// wrapped in a class to encapsulate alive check logic
private class ClientOrSessionProxy(val aliveFlagPath: String?, val data: T? = null, private var disposable: Disposable? = null) {
val isAlive: Boolean get() = aliveFlagPath?.let { File(it).exists() } ?: true // assuming that if no file was given, the client is alive
fun dispose() {
disposable?.let {
Disposer.dispose(it)
disposable = null
}
}
}
private val compilationsCounter = AtomicInteger(0)
private val classpathWatcher = LazyClasspathWatcher(compilerId.compilerClasspath)
enum class Aliveness {
// !!! ordering of values is used in state comparison
Dying, LastSession, Alive
}
private class SessionsContainer {
private val lock = ReentrantReadWriteLock()
private val sessions: MutableMap> = hashMapOf()
private val sessionsIdCounter = AtomicInteger(0)
fun leaseSession(session: ClientOrSessionProxy): Int = lock.write {
val newId = getValidId(sessionsIdCounter) {
it != CompileService.NO_SESSION && !sessions.containsKey(it)
}
sessions.put(newId, session)
newId
}
fun isEmpty(): Boolean = lock.read { sessions.isEmpty() }
operator fun get(sessionId: Int) = lock.read { sessions[sessionId] }
fun remove(sessionId: Int): Boolean = lock.write {
sessions.remove(sessionId)?.apply { dispose() } != null
}
fun cleanDead(): Boolean {
var anyDead = false
lock.read {
val toRemove = sessions.filterValues { !it.isAlive }
if (toRemove.isNotEmpty()) {
anyDead = true
lock.write {
toRemove.forEach { sessions.remove(it.key)?.dispose() }
}
}
}
return anyDead
}
}
// TODO: encapsulate operations on state here
private val state = object {
private val clientsLock = ReentrantReadWriteLock()
private val clientProxies: MutableSet> = hashSetOf()
val sessions = SessionsContainer()
val delayedShutdownQueued = AtomicBoolean(false)
var alive = AtomicInteger(Aliveness.Alive.ordinal)
val aliveClientsCount: Int get() = clientProxies.size
fun addClient(aliveFlagPath: String?) {
clientsLock.write {
clientProxies.add(ClientOrSessionProxy(aliveFlagPath))
}
}
fun getClientsFlagPaths(): List = clientsLock.read {
clientProxies.mapNotNull { it.aliveFlagPath }
}
fun cleanDeadClients(): Boolean = clientProxies.cleanMatching(clientsLock, { !it.isAlive }, { if (clientProxies.remove(it)) it.dispose() })
}
private fun Int.toAlivenessName(): String =
try {
Aliveness.values()[this].name
}
catch (_: Throwable) {
"invalid($this)"
}
private inline fun Iterable.cleanMatching(lock: ReentrantReadWriteLock, crossinline pred: (T) -> Boolean, crossinline clean: (T) -> Unit): Boolean {
var anyDead = false
lock.read {
val toRemove = filter(pred)
if (toRemove.isNotEmpty()) {
anyDead = true
lock.write {
toRemove.forEach(clean)
}
}
}
return anyDead
}
@Volatile private var _lastUsedSeconds = nowSeconds()
val lastUsedSeconds: Long get() = if (rwlock.isWriteLocked || rwlock.readLockCount - rwlock.readHoldCount > 0) nowSeconds() else _lastUsedSeconds
private val rwlock = ReentrantReadWriteLock()
private var runFile: File
init {
val runFileDir = File(daemonOptions.runFilesPathOrDefault)
runFileDir.mkdirs()
runFile = File(runFileDir,
makeRunFilenameString(timestamp = "%tFT% = ifAlive(minAliveness = Aliveness.Dying) {
CompileService.CallResult.Good("Kotlin daemon on port $port")
}
override fun getDaemonOptions(): CompileService.CallResult = ifAlive {
CompileService.CallResult.Good(daemonOptions)
}
override fun getDaemonJVMOptions(): CompileService.CallResult = ifAlive {
log.info("getDaemonJVMOptions: $daemonJVMOptions")// + daemonJVMOptions.mappers.flatMap { it.toArgs("-") })
CompileService.CallResult.Good(daemonJVMOptions)
}
override fun registerClient(aliveFlagPath: String?): CompileService.CallResult = ifAlive(minAliveness = Aliveness.Alive) {
state.addClient(aliveFlagPath)
log.info("Registered a client alive file: $aliveFlagPath")
CompileService.CallResult.Ok()
}
override fun getClients(): CompileService.CallResult> = ifAlive {
CompileService.CallResult.Good(state.getClientsFlagPaths())
}
// TODO: consider tying a session to a client and use this info to cleanup
override fun leaseCompileSession(aliveFlagPath: String?): CompileService.CallResult = ifAlive(minAliveness = Aliveness.Alive) {
CompileService.CallResult.Good(
state.sessions.leaseSession(ClientOrSessionProxy(aliveFlagPath)).apply {
log.info("leased a new session $this, session alive file: $aliveFlagPath")
})
}
override fun releaseCompileSession(sessionId: Int) = ifAlive(minAliveness = Aliveness.LastSession) {
state.sessions.remove(sessionId)
log.info("cleaning after session $sessionId")
rwlock.write {
clearJarCache()
}
if (state.sessions.isEmpty()) {
// TODO: and some goes here
}
timer.schedule(0) {
periodicAndAfterSessionCheck()
}
CompileService.CallResult.Ok()
}
override fun checkCompilerId(expectedCompilerId: CompilerId): Boolean =
(compilerId.compilerVersion.isEmpty() || compilerId.compilerVersion == expectedCompilerId.compilerVersion) &&
(compilerId.compilerClasspath.all { expectedCompilerId.compilerClasspath.contains(it) }) &&
!classpathWatcher.isChanged
override fun getUsedMemory(): CompileService.CallResult =
ifAlive { CompileService.CallResult.Good(usedMemory(withGC = true)) }
override fun shutdown(): CompileService.CallResult = ifAliveExclusive(minAliveness = Aliveness.LastSession) {
shutdownWithDelay()
CompileService.CallResult.Ok()
}
override fun scheduleShutdown(graceful: Boolean): CompileService.CallResult = ifAlive(minAliveness = Aliveness.LastSession) {
val res = when {
graceful -> gracefulShutdown(true)
else -> {
shutdownWithDelay()
true
}
}
CompileService.CallResult.Good(res)
}
override fun remoteCompile(sessionId: Int,
targetPlatform: CompileService.TargetPlatform,
args: Array,
servicesFacade: CompilerCallbackServicesFacade,
compilerOutputStream: RemoteOutputStream,
outputFormat: CompileService.OutputFormat,
serviceOutputStream: RemoteOutputStream,
operationsTracer: RemoteOperationsTracer?
): CompileService.CallResult =
doCompile(sessionId, args, compilerOutputStream, serviceOutputStream, operationsTracer) { printStream, eventManager, profiler ->
when (outputFormat) {
CompileService.OutputFormat.PLAIN -> compiler[targetPlatform].exec(printStream, *args)
CompileService.OutputFormat.XML -> compiler[targetPlatform].execAndOutputXml(printStream, createCompileServices(servicesFacade, eventManager, profiler), *args)
}
}
override fun remoteIncrementalCompile(sessionId: Int,
targetPlatform: CompileService.TargetPlatform,
args: Array,
servicesFacade: CompilerCallbackServicesFacade,
compilerOutputStream: RemoteOutputStream,
compilerOutputFormat: CompileService.OutputFormat,
serviceOutputStream: RemoteOutputStream,
operationsTracer: RemoteOperationsTracer?
): CompileService.CallResult =
doCompile(sessionId, args, compilerOutputStream, serviceOutputStream, operationsTracer) { printStream, eventManager, profiler ->
when (compilerOutputFormat) {
CompileService.OutputFormat.PLAIN -> throw NotImplementedError("Only XML output is supported in remote incremental compilation")
CompileService.OutputFormat.XML -> compiler[targetPlatform].execAndOutputXml(printStream, createCompileServices(servicesFacade, eventManager, profiler), *args)
}
}
override fun compile(
sessionId: Int,
compilerArguments: Array,
compilationOptions: CompilationOptions,
servicesFacade: CompilerServicesFacadeBase,
compilationResults: CompilationResults?
): CompileService.CallResult = ifAlive {
val messageCollector = CompileServicesFacadeMessageCollector(servicesFacade, compilationOptions)
val daemonReporter = DaemonMessageReporter(servicesFacade, compilationOptions)
val targetPlatform = compilationOptions.targetPlatform
log.info("Starting compilation with args: " + compilerArguments.joinToString(" "))
@Suppress("UNCHECKED_CAST")
val compiler = when (targetPlatform) {
CompileService.TargetPlatform.JVM -> K2JVMCompiler()
CompileService.TargetPlatform.JS -> K2JSCompiler()
CompileService.TargetPlatform.METADATA -> K2MetadataCompiler()
} as CLICompiler
val k2PlatformArgs = compiler.createArguments()
parseCommandLineArguments(compilerArguments.asList(), k2PlatformArgs)
val argumentParseError = validateArguments(k2PlatformArgs.errors)
if (argumentParseError != null) {
messageCollector.report(CompilerMessageSeverity.ERROR, argumentParseError)
CompileService.CallResult.Good(ExitCode.COMPILATION_ERROR.code)
}
else when (compilationOptions.compilerMode) {
CompilerMode.JPS_COMPILER -> {
val jpsServicesFacade = servicesFacade as JpsCompilerServicesFacade
doCompile(sessionId, daemonReporter, tracer = null) { eventManger, profiler ->
val services = createCompileServices(jpsServicesFacade, eventManger, profiler)
compiler.exec(messageCollector, services, k2PlatformArgs)
}
}
CompilerMode.NON_INCREMENTAL_COMPILER -> {
doCompile(sessionId, daemonReporter, tracer = null) { _, _ ->
compiler.exec(messageCollector, Services.EMPTY, k2PlatformArgs)
}
}
CompilerMode.INCREMENTAL_COMPILER -> {
if (targetPlatform != CompileService.TargetPlatform.JVM) {
throw IllegalStateException("Incremental compilation is not supported for target platform: $targetPlatform")
}
val k2jvmArgs = k2PlatformArgs as K2JVMCompilerArguments
val gradleIncrementalArgs = compilationOptions as IncrementalCompilationOptions
val gradleIncrementalServicesFacade = servicesFacade as IncrementalCompilerServicesFacade
withIC {
doCompile(sessionId, daemonReporter, tracer = null) { _, _ ->
execIncrementalCompiler(k2jvmArgs, gradleIncrementalArgs, gradleIncrementalServicesFacade, compilationResults!!,
messageCollector, daemonReporter)
}
}
}
else -> throw IllegalStateException("Unknown compilation mode ${compilationOptions.compilerMode}")
}
}
private fun execIncrementalCompiler(
k2jvmArgs: K2JVMCompilerArguments,
incrementalCompilationOptions: IncrementalCompilationOptions,
servicesFacade: IncrementalCompilerServicesFacade,
compilationResults: CompilationResults,
compilerMessageCollector: MessageCollector,
daemonMessageReporter: DaemonMessageReporter
): ExitCode {
val reporter = RemoteICReporter(servicesFacade, compilationResults, incrementalCompilationOptions)
val annotationFileUpdater = if (servicesFacade.hasAnnotationsFileUpdater()) RemoteAnnotationsFileUpdater(servicesFacade) else null
val moduleFile = k2jvmArgs.buildFile?.let(::File)
assert(moduleFile?.exists() ?: false) { "Module does not exist ${k2jvmArgs.buildFile}" }
// todo: pass javaSourceRoots and allKotlinFiles using IncrementalCompilationOptions
val parsedModule = run {
val bytesOut = ByteArrayOutputStream()
val printStream = PrintStream(bytesOut)
val mc = PrintingMessageCollector(printStream, MessageRenderer.PLAIN_FULL_PATHS, false)
val parsedModule = ModuleXmlParser.parseModuleScript(k2jvmArgs.buildFile, mc)
if (mc.hasErrors()) {
daemonMessageReporter.report(ReportSeverity.ERROR, bytesOut.toString("UTF8"))
}
parsedModule
}
val javaSourceRoots = parsedModule.modules.flatMapTo(HashSet()) { it.getJavaSourceRoots().map { File(it.path) } }
val allKotlinFiles = parsedModule.modules.flatMap { it.getSourceFiles().map(::File) }
k2jvmArgs.friendPaths = parsedModule.modules.flatMap(Module::getFriendPaths).toTypedArray()
val changedFiles = if (incrementalCompilationOptions.areFileChangesKnown) {
ChangedFiles.Known(incrementalCompilationOptions.modifiedFiles!!, incrementalCompilationOptions.deletedFiles!!)
}
else {
ChangedFiles.Unknown()
}
val artifactChanges = RemoteArtifactChangesProvider(servicesFacade)
val changesRegistry = RemoteChangesRegistry(servicesFacade)
val workingDir = incrementalCompilationOptions.workingDir
val versions = commonCacheVersions(workingDir) +
customCacheVersion(incrementalCompilationOptions.customCacheVersion, incrementalCompilationOptions.customCacheVersionFileName, workingDir, forceEnable = true)
return IncrementalJvmCompilerRunner(workingDir, javaSourceRoots, versions, reporter, annotationFileUpdater,
artifactChanges, changesRegistry)
.compile(allKotlinFiles, k2jvmArgs, compilerMessageCollector, { changedFiles })
}
override fun leaseReplSession(
aliveFlagPath: String?,
targetPlatform: CompileService.TargetPlatform,
servicesFacade: CompilerCallbackServicesFacade,
templateClasspath: List,
templateClassName: String,
scriptArgs: Array?,
scriptArgsTypes: Array>?,
compilerMessagesOutputStream: RemoteOutputStream,
evalOutputStream: RemoteOutputStream?,
evalErrorStream: RemoteOutputStream?,
evalInputStream: RemoteInputStream?,
operationsTracer: RemoteOperationsTracer?
): CompileService.CallResult = ifAlive(minAliveness = Aliveness.Alive) {
if (targetPlatform != CompileService.TargetPlatform.JVM)
CompileService.CallResult.Error("Sorry, only JVM target platform is supported now")
else {
val disposable = Disposer.newDisposable()
val compilerMessagesStream = PrintStream(BufferedOutputStream(RemoteOutputStreamClient(compilerMessagesOutputStream, DummyProfiler()), REMOTE_STREAM_BUFFER_SIZE))
val messageCollector = KeepFirstErrorMessageCollector(compilerMessagesStream)
val repl = KotlinJvmReplService(disposable, port, templateClasspath, templateClassName,
messageCollector, operationsTracer)
val sessionId = state.sessions.leaseSession(ClientOrSessionProxy(aliveFlagPath, repl, disposable))
CompileService.CallResult.Good(sessionId)
}
}
// TODO: add more checks (e.g. is it a repl session)
override fun releaseReplSession(sessionId: Int): CompileService.CallResult = releaseCompileSession(sessionId)
override fun remoteReplLineCheck(sessionId: Int, codeLine: ReplCodeLine): CompileService.CallResult =
ifAlive(minAliveness = Aliveness.Alive) {
withValidRepl(sessionId) {
CompileService.CallResult.Good(check(codeLine))
}
}
override fun remoteReplLineCompile(sessionId: Int, codeLine: ReplCodeLine, history: List?): CompileService.CallResult =
ifAlive(minAliveness = Aliveness.Alive) {
withValidRepl(sessionId) {
CompileService.CallResult.Good(compile(codeLine, history))
}
}
override fun remoteReplLineEval(
sessionId: Int,
codeLine: ReplCodeLine,
history: List?
): CompileService.CallResult =
ifAlive(minAliveness = Aliveness.Alive) {
CompileService.CallResult.Error("Eval on daemon is not supported")
}
override fun leaseReplSession(aliveFlagPath: String?,
compilerArguments: Array,
compilationOptions: CompilationOptions,
servicesFacade: CompilerServicesFacadeBase,
templateClasspath: List,
templateClassName: String
): CompileService.CallResult = ifAlive(minAliveness = Aliveness.Alive) {
if (compilationOptions.targetPlatform != CompileService.TargetPlatform.JVM)
CompileService.CallResult.Error("Sorry, only JVM target platform is supported now")
else {
val disposable = Disposer.newDisposable()
val messageCollector = CompileServicesFacadeMessageCollector(servicesFacade, compilationOptions)
val repl = KotlinJvmReplService(disposable, port, templateClasspath, templateClassName,
messageCollector, null)
val sessionId = state.sessions.leaseSession(ClientOrSessionProxy(aliveFlagPath, repl, disposable))
CompileService.CallResult.Good(sessionId)
}
}
override fun replCreateState(sessionId: Int): CompileService.CallResult =
ifAlive(minAliveness = Aliveness.Alive) {
withValidRepl(sessionId) {
CompileService.CallResult.Good(createRemoteState(port))
}
}
override fun replCheck(sessionId: Int, replStateId: Int, codeLine: ReplCodeLine): CompileService.CallResult =
ifAlive(minAliveness = Aliveness.Alive) {
withValidRepl(sessionId) {
withValidReplState(replStateId) { state ->
check(state, codeLine)
}
}
}
override fun replCompile(sessionId: Int, replStateId: Int, codeLine: ReplCodeLine): CompileService.CallResult =
ifAlive(minAliveness = Aliveness.Alive) {
withValidRepl(sessionId) {
withValidReplState(replStateId) { state ->
compile(state, codeLine)
}
}
}
// -----------------------------------------------------------------------
// internal implementation stuff
// TODO: consider matching compilerId coming from outside with actual one
// private val selfCompilerId by lazy {
// CompilerId(
// compilerClasspath = System.getProperty("java.class.path")
// ?.split(File.pathSeparator)
// ?.map { File(it) }
// ?.filter { it.exists() }
// ?.map { it.absolutePath }
// ?: listOf(),
// compilerVersion = loadKotlinVersionFromResource()
// )
// }
init {
// assuming logically synchronized
try {
// cleanup for the case of incorrect restart and many other situations
UnicastRemoteObject.unexportObject(this, false)
}
catch (e: NoSuchObjectException) {
// ignoring if object already exported
}
val stub = UnicastRemoteObject.exportObject(this, port, LoopbackNetworkInterface.clientLoopbackSocketFactory, LoopbackNetworkInterface.serverLoopbackSocketFactory) as CompileService
registry.rebind (COMPILER_SERVICE_RMI_NAME, stub)
timer.schedule(10) {
exceptionLoggingTimerThread { initiateElections() }
}
timer.schedule(delay = DAEMON_PERIODIC_CHECK_INTERVAL_MS, period = DAEMON_PERIODIC_CHECK_INTERVAL_MS) {
exceptionLoggingTimerThread { periodicAndAfterSessionCheck() }
}
timer.schedule(delay = DAEMON_PERIODIC_SELDOM_CHECK_INTERVAL_MS + 100, period = DAEMON_PERIODIC_SELDOM_CHECK_INTERVAL_MS) {
exceptionLoggingTimerThread { periodicSeldomCheck() }
}
}
private inline fun exceptionLoggingTimerThread(body: () -> Unit) {
try {
body()
}
catch (e: Throwable) {
System.err.println("Exception in timer thread: " + e.message)
e.printStackTrace(System.err)
log.log(Level.SEVERE, "Exception in timer thread", e)
}
}
private fun periodicAndAfterSessionCheck() {
if (state.delayedShutdownQueued.get()) return
val anyDead = state.sessions.cleanDead() || state.cleanDeadClients()
ifAliveUnit(minAliveness = Aliveness.LastSession) {
when {
// check if in graceful shutdown state and all sessions are closed
state.alive.get() == Aliveness.LastSession.ordinal && state.sessions.isEmpty() -> {
log.info("All sessions finished")
shutdownWithDelay()
return
}
state.aliveClientsCount == 0 -> {
log.info("No more clients left")
shutdownWithDelay()
return
}
// discovery file removed - shutdown
!runFile.exists() -> {
log.info("Run file removed")
shutdownWithDelay()
return
}
}
}
ifAliveUnit(minAliveness = Aliveness.Alive) {
when {
daemonOptions.autoshutdownUnusedSeconds != COMPILE_DAEMON_TIMEOUT_INFINITE_S && compilationsCounter.get() == 0 && nowSeconds() - lastUsedSeconds > daemonOptions.autoshutdownUnusedSeconds -> {
log.info("Unused timeout exceeded ${daemonOptions.autoshutdownUnusedSeconds}s")
gracefulShutdown(false)
}
daemonOptions.autoshutdownIdleSeconds != COMPILE_DAEMON_TIMEOUT_INFINITE_S && nowSeconds() - lastUsedSeconds > daemonOptions.autoshutdownIdleSeconds -> {
log.info("Idle timeout exceeded ${daemonOptions.autoshutdownIdleSeconds}s")
gracefulShutdown(false)
}
anyDead -> {
clearJarCache()
}
}
}
}
private fun periodicSeldomCheck() {
ifAliveUnit(minAliveness = Aliveness.Alive) {
// compiler changed (seldom check) - shutdown
if (classpathWatcher.isChanged) {
log.info("Compiler changed.")
gracefulShutdown(false)
}
}
}
// TODO: handover should include mechanism for client to switch to a new daemon then previous "handed over responsibilities" and shot down
private fun initiateElections() {
ifAliveUnit {
log.info("initiate elections")
val aliveWithOpts = walkDaemons(File(daemonOptions.runFilesPathOrDefault), compilerId, runFile, filter = { _, p -> p != port }, report = { _, msg -> log.info(msg) }).toList()
val comparator = compareByDescending(DaemonJVMOptionsMemoryComparator(), { it.jvmOptions })
.thenBy(FileAgeComparator()) { it.runFile }
aliveWithOpts.maxWith(comparator)?.let { bestDaemonWithMetadata ->
val fattestOpts = bestDaemonWithMetadata.jvmOptions
if (fattestOpts memorywiseFitsInto daemonJVMOptions && FileAgeComparator().compare(bestDaemonWithMetadata.runFile, runFile) < 0 ) {
// all others are smaller that me, take overs' clients and shut them down
log.info("$LOG_PREFIX_ASSUMING_OTHER_DAEMONS_HAVE lower prio, taking clients from them and schedule them to shutdown: my runfile: ${runFile.name} (${runFile.lastModified()}) vs best other runfile: ${bestDaemonWithMetadata.runFile.name} (${bestDaemonWithMetadata.runFile.lastModified()})")
aliveWithOpts.forEach { (daemon, runFile, _) ->
try {
daemon.getClients().takeIf { it.isGood }?.let {
it.get().forEach { clientAliveFile -> registerClient(clientAliveFile) }
}
daemon.scheduleShutdown(true)
}
catch (e: Throwable) {
log.info("Cannot connect to a daemon, assuming dying ('${runFile.canonicalPath}'): ${e.message}")
}
}
}
// TODO: seems that the second part of condition is incorrect, reconsider:
// the comment by @tsvtkv from review:
// Algorithm in plain english:
// (1) If the best daemon fits into me and the best daemon is younger than me, then I take over all other daemons clients.
// (2) If I fit into the best daemon and the best daemon is older than me, then I give my clients to that daemon.
//
// For example:
//
// daemon A starts with params: maxMem=100, codeCache=50
// daemon B starts with params: maxMem=200, codeCache=50
// daemon C starts with params: maxMem=150, codeCache=100
// A performs election: (1) is false because neither B nor C does not fit into A, (2) is false because both B and C are younger than A.
// B performs election: (1) is false because neither A nor C does not fit into B, (2) is false because B does not fit into neither A nor C.
// C performs election: (1) is false because B is better than A and B does not fit into C, (2) is false C does not fit into neither A nor B.
// Result: all daemons are alive and well.
else if (daemonJVMOptions memorywiseFitsInto fattestOpts && FileAgeComparator().compare(bestDaemonWithMetadata.runFile, runFile) > 0) {
// there is at least one bigger, handover my clients to it and shutdown
log.info("$LOG_PREFIX_ASSUMING_OTHER_DAEMONS_HAVE higher prio, handover clients to it and schedule shutdown: my runfile: ${runFile.name} (${runFile.lastModified()}) vs best other runfile: ${bestDaemonWithMetadata.runFile.name} (${bestDaemonWithMetadata.runFile.lastModified()})")
getClients().takeIf { it.isGood }?.let {
it.get().forEach { bestDaemonWithMetadata.daemon.registerClient(it) }
}
scheduleShutdown(true)
}
else {
// undecided, do nothing
log.info("$LOG_PREFIX_ASSUMING_OTHER_DAEMONS_HAVE equal prio, continue: ${runFile.name} (${runFile.lastModified()}) vs best other runfile: ${bestDaemonWithMetadata.runFile.name} (${bestDaemonWithMetadata.runFile.lastModified()})")
// TODO: implement some behaviour here, e.g.:
// - shutdown/takeover smaller daemon
// - run (or better persuade client to run) a bigger daemon (in fact may be even simple shutdown will do, because of client's daemon choosing logic)
}
}
}
}
private fun shutdownNow() {
log.info("Shutdown started")
fun Long.mb() = this / (1024 * 1024)
with (Runtime.getRuntime()) {
log.info("Memory stats: total: ${totalMemory().mb()}mb, free: ${freeMemory().mb()}mb, max: ${maxMemory().mb()}mb")
}
state.alive.set(Aliveness.Dying.ordinal)
UnicastRemoteObject.unexportObject(this, true)
log.info("Shutdown complete")
onShutdown()
log.handlers.forEach { it.flush() }
}
private fun shutdownWithDelay() {
state.delayedShutdownQueued.set(true)
val currentCompilationsCount = compilationsCounter.get()
log.info("Delayed shutdown in ${daemonOptions.shutdownDelayMilliseconds}ms")
timer.schedule(daemonOptions.shutdownDelayMilliseconds) {
state.delayedShutdownQueued.set(false)
if (currentCompilationsCount == compilationsCounter.get()) {
ifAliveExclusiveUnit(minAliveness = Aliveness.LastSession) {
log.fine("Execute delayed shutdown")
shutdownNow()
}
}
else {
log.info("Cancel delayed shutdown due to new client")
}
}
}
private fun gracefulShutdown(onAnotherThread: Boolean): Boolean {
fun shutdownIfIdle() = when {
state.sessions.isEmpty() -> shutdownWithDelay()
else -> {
daemonOptions.autoshutdownIdleSeconds = TimeUnit.MILLISECONDS.toSeconds(daemonOptions.forceShutdownTimeoutMilliseconds).toInt()
daemonOptions.autoshutdownUnusedSeconds = daemonOptions.autoshutdownIdleSeconds
log.info("Some sessions are active, waiting for them to finish")
log.info("Unused/idle timeouts are set to ${daemonOptions.autoshutdownUnusedSeconds}/${daemonOptions.autoshutdownIdleSeconds}s")
}
}
if (!state.alive.compareAndSet(Aliveness.Alive.ordinal, Aliveness.LastSession.ordinal)) {
log.info("Invalid state for graceful shutdown: ${state.alive.get().toAlivenessName()}")
return false
}
log.info("Graceful shutdown signalled")
if (!onAnotherThread) {
shutdownIfIdle()
}
else {
timer.schedule(1) {
ifAliveExclusiveUnit(minAliveness = Aliveness.LastSession) {
shutdownIfIdle()
}
}
}
return true
}
// todo: remove after remoteIncrementalCompile is removed
private fun doCompile(sessionId: Int,
args: Array,
compilerMessagesStreamProxy: RemoteOutputStream,
serviceOutputStreamProxy: RemoteOutputStream,
operationsTracer: RemoteOperationsTracer?,
body: (PrintStream, EventManager, Profiler) -> ExitCode): CompileService.CallResult =
ifAlive {
withValidClientOrSessionProxy(sessionId) {
operationsTracer?.before("compile")
val rpcProfiler = if (daemonOptions.reportPerf) WallAndThreadTotalProfiler() else DummyProfiler()
val eventManger = EventManagerImpl()
val compilerMessagesStream = PrintStream(BufferedOutputStream(RemoteOutputStreamClient(compilerMessagesStreamProxy, rpcProfiler), REMOTE_STREAM_BUFFER_SIZE))
val serviceOutputStream = PrintStream(BufferedOutputStream(RemoteOutputStreamClient(serviceOutputStreamProxy, rpcProfiler), REMOTE_STREAM_BUFFER_SIZE))
try {
val compileServiceReporter = DaemonMessageReporterPrintStreamAdapter(serviceOutputStream)
if (args.none())
throw IllegalArgumentException("Error: empty arguments list.")
log.info("Starting compilation with args: " + args.joinToString(" "))
val exitCode = checkedCompile(compileServiceReporter, rpcProfiler) {
body(compilerMessagesStream, eventManger, rpcProfiler).code
}
CompileService.CallResult.Good(exitCode)
}
finally {
serviceOutputStream.flush()
compilerMessagesStream.flush()
eventManger.fireCompilationFinished()
operationsTracer?.after("compile")
}
}
}
private fun doCompile(sessionId: Int,
daemonMessageReporter: DaemonMessageReporter,
tracer: RemoteOperationsTracer?,
body: (EventManager, Profiler) -> ExitCode): CompileService.CallResult =
ifAlive {
withValidClientOrSessionProxy(sessionId) {
tracer?.before("compile")
val rpcProfiler = if (daemonOptions.reportPerf) WallAndThreadTotalProfiler() else DummyProfiler()
val eventManger = EventManagerImpl()
try {
val exitCode = checkedCompile(daemonMessageReporter, rpcProfiler) {
body(eventManger, rpcProfiler).code
}
CompileService.CallResult.Good(exitCode)
}
finally {
eventManger.fireCompilationFinished()
tracer?.after("compile")
}
}
}
private fun createCompileServices(facade: CompilerCallbackServicesFacade, eventManager: EventManager, rpcProfiler: Profiler): Services {
val builder = Services.Builder()
if (facade.hasIncrementalCaches() || facade.hasLookupTracker()) {
builder.register(IncrementalCompilationComponents::class.java, RemoteIncrementalCompilationComponentsClient(facade, eventManager, rpcProfiler))
}
if (facade.hasCompilationCanceledStatus()) {
builder.register(CompilationCanceledStatus::class.java, RemoteCompilationCanceledStatusClient(facade, rpcProfiler))
}
return builder.build()
}
private fun checkedCompile(daemonMessageReporter: DaemonMessageReporter, rpcProfiler: Profiler, body: () -> R): R {
try {
val profiler = if (daemonOptions.reportPerf) WallAndThreadAndMemoryTotalProfiler(withGC = false) else DummyProfiler()
val res = profiler.withMeasure(null, body)
val endMem = if (daemonOptions.reportPerf) usedMemory(withGC = false) else 0L
log.info("Done with result " + res.toString())
if (daemonOptions.reportPerf) {
fun Long.ms() = TimeUnit.NANOSECONDS.toMillis(this)
fun Long.kb() = this / 1024
val pc = profiler.getTotalCounters()
val rpc = rpcProfiler.getTotalCounters()
"PERF: Compile on daemon: ${pc.time.ms()} ms; thread: user ${pc.threadUserTime.ms()} ms, sys ${(pc.threadTime - pc.threadUserTime).ms()} ms; rpc: ${rpc.count} calls, ${rpc.time.ms()} ms, thread ${rpc.threadTime.ms()} ms; memory: ${endMem.kb()} kb (${"%+d".format(pc.memory.kb())} kb)".let {
daemonMessageReporter.report(ReportSeverity.INFO, it)
log.info(it)
}
// this will only be reported if if appropriate (e.g. ByClass) profiler is used
for ((obj, counters) in rpcProfiler.getCounters()) {
"PERF: rpc by $obj: ${counters.count} calls, ${counters.time.ms()} ms, thread ${counters.threadTime.ms()} ms".let {
daemonMessageReporter.report(ReportSeverity.INFO, it)
log.info(it)
}
}
}
return res
}
// TODO: consider possibilities to handle OutOfMemory
catch (e: Throwable) {
log.info("Error: $e")
throw e
}
}
override fun clearJarCache() {
ZipHandler.clearFileAccessorCache()
(KotlinCoreEnvironment.applicationEnvironment?.jarFileSystem as? CoreJarFileSystem)?.clearHandlersCache()
}
private inline fun ifAlive(minAliveness: Aliveness = Aliveness.LastSession, body: () -> CompileService.CallResult): CompileService.CallResult = rwlock.read {
ifAliveChecksImpl(minAliveness, body)
}
private inline fun ifAliveUnit(minAliveness: Aliveness = Aliveness.LastSession, body: () -> Unit): Unit = rwlock.read {
ifAliveChecksImpl(minAliveness) {
body()
CompileService.CallResult.Ok()
}
}
private inline fun ifAliveExclusive(minAliveness: Aliveness = Aliveness.LastSession, body: () -> CompileService.CallResult): CompileService.CallResult = rwlock.write {
ifAliveChecksImpl(minAliveness, body)
}
private inline fun ifAliveExclusiveUnit(minAliveness: Aliveness = Aliveness.LastSession, body: () -> Unit): Unit = rwlock.write {
ifAliveChecksImpl(minAliveness) {
body()
CompileService.CallResult.Ok()
}
}
private inline fun ifAliveChecksImpl(minAliveness: Aliveness = Aliveness.LastSession, body: () -> CompileService.CallResult): CompileService.CallResult {
val curState = state.alive.get()
return when {
curState < minAliveness.ordinal -> {
log.info("Cannot perform operation, requested state: ${minAliveness.name} > actual: ${curState.toAlivenessName()}")
CompileService.CallResult.Dying()
}
else -> {
try {
body()
}
catch (e: Throwable) {
log.log(Level.SEVERE, "Exception", e)
CompileService.CallResult.Error(e.message ?: "unknown")
}
}
}
}
private inline fun withValidClientOrSessionProxy(sessionId: Int,
body: (ClientOrSessionProxy?) -> CompileService.CallResult
): CompileService.CallResult {
val session: ClientOrSessionProxy? =
if (sessionId == CompileService.NO_SESSION) null
else state.sessions[sessionId] ?: return CompileService.CallResult.Error("Unknown or invalid session $sessionId")
try {
compilationsCounter.incrementAndGet()
return body(session)
}
finally {
_lastUsedSeconds = nowSeconds()
}
}
private inline fun withValidRepl(sessionId: Int, body: KotlinJvmReplService.() -> R): CompileService.CallResult =
withValidClientOrSessionProxy(sessionId) { session ->
(session?.data as? KotlinJvmReplService?)?.let {
CompileService.CallResult.Good(it.body())
} ?: CompileService.CallResult.Error("Not a REPL session $sessionId")
}
@JvmName("withValidRepl1")
private inline fun withValidRepl(sessionId: Int, body: KotlinJvmReplService.() -> CompileService.CallResult): CompileService.CallResult =
withValidClientOrSessionProxy(sessionId) { session ->
(session?.data as? KotlinJvmReplService?)?.body() ?: CompileService.CallResult.Error("Not a REPL session $sessionId")
}
}
