--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.cpp Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,348 @@
+/*
+ * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "classfile/javaClasses.inline.hpp"
+#include "code/codeBlob.hpp"
+#include "code/codeCache.hpp"
+#include "gc/shared/gcCause.hpp"
+#include "gc/shared/gcName.hpp"
+#include "gc/shared/gcTrace.hpp"
+#include "gc/shared/gcWhen.hpp"
+#include "jfr/leakprofiler/checkpoint/objectSampleCheckpoint.hpp"
+#include "jfr/leakprofiler/leakProfiler.hpp"
+#include "jfr/recorder/checkpoint/jfrCheckpointManager.hpp"
+#include "jfr/recorder/checkpoint/types/jfrType.hpp"
+#include "jfr/recorder/jfrRecorder.hpp"
+#include "jfr/recorder/checkpoint/types/jfrThreadGroup.hpp"
+#include "jfr/recorder/checkpoint/types/jfrThreadState.hpp"
+#include "jfr/recorder/checkpoint/types/jfrTypeSet.hpp"
+#include "jfr/support/jfrThreadLocal.hpp"
+#include "jfr/writers/jfrJavaEventWriter.hpp"
+#include "memory/metaspaceGCThresholdUpdater.hpp"
+#include "memory/referenceType.hpp"
+#include "memory/universe.hpp"
+#include "runtime/flags/jvmFlag.hpp"
+#include "runtime/mutexLocker.hpp"
+#include "runtime/osThread.hpp"
+#include "runtime/safepoint.hpp"
+#include "runtime/synchronizer.hpp"
+#include "runtime/thread.inline.hpp"
+#include "runtime/vm_operations.hpp"
+
+#ifdef COMPILER2
+#include "opto/compile.hpp"
+#include "opto/node.hpp"
+#endif
+#if INCLUDE_G1GC
+#include "gc/g1/g1HeapRegionTraceType.hpp"
+#include "gc/g1/g1YCTypes.hpp"
+#endif
+
+// implementation for the static registration function exposed in the api
+bool JfrSerializer::register_serializer(JfrTypeId id, bool require_safepoint, bool permit_cache, JfrSerializer* cs) {
+ assert(cs != NULL, "invariant");
+ return JfrCheckpointManager::register_serializer(id, require_safepoint, permit_cache, cs);
+}
+
+class JfrCheckpointThreadCountClosure : public ThreadClosure {
+private:
+ u4 _total_threads;
+public:
+ JfrCheckpointThreadCountClosure() : _total_threads(0) {}
+ u4 total_threads() { return _total_threads; }
+ void do_thread(Thread *t) { _total_threads++; }
+};
+
+// Requires a ResourceMark for get_thread_name/as_utf8
+class JfrCheckpointThreadClosure : public ThreadClosure {
+ private:
+ JfrCheckpointWriter& _writer;
+ Thread* _curthread;
+ public:
+ JfrCheckpointThreadClosure(JfrCheckpointWriter& writer) : _writer(writer), _curthread(Thread::current()) {}
+ void do_thread(Thread* t);
+};
+
+// Requires a ResourceMark for get_thread_name/as_utf8
+void JfrCheckpointThreadClosure::do_thread(Thread* t) {
+ assert(t != NULL, "invariant");
+ assert_locked_or_safepoint(Threads_lock);
+ _writer.write_key(t->jfr_thread_local()->thread_id());
+ _writer.write(t->name());
+ const OSThread* const os_thread = t->osthread();
+ _writer.write<traceid>(os_thread != NULL ? os_thread->thread_id() : (u8)0);
+ if (t->is_Java_thread()) {
+ JavaThread* const jt = (JavaThread*)t;
+ _writer.write(jt->name());
+ _writer.write(java_lang_Thread::thread_id(jt->threadObj()));
+ _writer.write(JfrThreadGroup::thread_group_id(jt, _curthread));
+ // since we are iterating threads during a safepoint, also issue notification
+ JfrJavaEventWriter::notify(jt);
+ return;
+ }
+ _writer.write((const char*)NULL); // java name
+ _writer.write<traceid>((traceid)0); // java thread id
+ _writer.write<traceid>((traceid)0); // java thread group
+}
+
+void JfrThreadConstantSet::serialize(JfrCheckpointWriter& writer) {
+ assert(SafepointSynchronize::is_at_safepoint(), "invariant");
+ JfrCheckpointThreadCountClosure tcc;
+ Threads::threads_do(&tcc);
+ const u4 total_threads = tcc.total_threads();
+ // THREADS
+ writer.write_count(total_threads);
+ JfrCheckpointThreadClosure tc(writer);
+ Threads::threads_do(&tc);
+}
+
+void JfrThreadGroupConstant::serialize(JfrCheckpointWriter& writer) {
+ assert(SafepointSynchronize::is_at_safepoint(), "invariant");
+ JfrThreadGroup::serialize(writer);
+}
+
+static const char* flag_value_origin_to_string(JVMFlag::Flags origin) {
+ switch (origin) {
+ case JVMFlag::DEFAULT: return "Default";
+ case JVMFlag::COMMAND_LINE: return "Command line";
+ case JVMFlag::ENVIRON_VAR: return "Environment variable";
+ case JVMFlag::CONFIG_FILE: return "Config file";
+ case JVMFlag::MANAGEMENT: return "Management";
+ case JVMFlag::ERGONOMIC: return "Ergonomic";
+ case JVMFlag::ATTACH_ON_DEMAND: return "Attach on demand";
+ case JVMFlag::INTERNAL: return "Internal";
+ default: ShouldNotReachHere(); return "";
+ }
+}
+
+void FlagValueOriginConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = JVMFlag::LAST_VALUE_ORIGIN + 1;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(flag_value_origin_to_string((JVMFlag::Flags)i));
+ }
+}
+
+void MonitorInflateCauseConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = ObjectSynchronizer::inflate_cause_nof;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(ObjectSynchronizer::inflate_cause_name((ObjectSynchronizer::InflateCause)i));
+ }
+}
+
+void GCCauseConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = GCCause::_last_gc_cause;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(GCCause::to_string((GCCause::Cause)i));
+ }
+}
+
+void GCNameConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = GCNameEndSentinel;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(GCNameHelper::to_string((GCName)i));
+ }
+}
+
+void GCWhenConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = GCWhen::GCWhenEndSentinel;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(GCWhen::to_string((GCWhen::Type)i));
+ }
+}
+
+void G1HeapRegionTypeConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = G1HeapRegionTraceType::G1HeapRegionTypeEndSentinel;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(G1HeapRegionTraceType::to_string((G1HeapRegionTraceType::Type)i));
+ }
+}
+
+void GCThresholdUpdaterConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = MetaspaceGCThresholdUpdater::Last;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(MetaspaceGCThresholdUpdater::to_string((MetaspaceGCThresholdUpdater::Type)i));
+ }
+}
+
+void MetadataTypeConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = Metaspace::MetadataTypeCount;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(Metaspace::metadata_type_name((Metaspace::MetadataType)i));
+ }
+}
+
+void MetaspaceObjectTypeConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = MetaspaceObj::_number_of_types;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(MetaspaceObj::type_name((MetaspaceObj::Type)i));
+ }
+}
+
+void G1YCTypeConstant::serialize(JfrCheckpointWriter& writer) {
+#if INCLUDE_G1GC
+ static const u4 nof_entries = G1YCTypeEndSentinel;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(G1YCTypeHelper::to_string((G1YCType)i));
+ }
+#endif
+}
+
+static const char* reference_type_to_string(ReferenceType rt) {
+ switch (rt) {
+ case REF_NONE: return "None reference";
+ case REF_OTHER: return "Other reference";
+ case REF_SOFT: return "Soft reference";
+ case REF_WEAK: return "Weak reference";
+ case REF_FINAL: return "Final reference";
+ case REF_PHANTOM: return "Phantom reference";
+ default:
+ ShouldNotReachHere();
+ return NULL;
+ }
+}
+
+void ReferenceTypeConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = REF_PHANTOM + 1;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(reference_type_to_string((ReferenceType)i));
+ }
+}
+
+void NarrowOopModeConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = Universe::HeapBasedNarrowOop + 1;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(Universe::narrow_oop_mode_to_string((Universe::NARROW_OOP_MODE)i));
+ }
+}
+
+void CompilerPhaseTypeConstant::serialize(JfrCheckpointWriter& writer) {
+#ifdef COMPILER2
+ static const u4 nof_entries = PHASE_NUM_TYPES;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(CompilerPhaseTypeHelper::to_string((CompilerPhaseType)i));
+ }
+#endif
+}
+
+void CodeBlobTypeConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = CodeBlobType::NumTypes;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(CodeCache::get_code_heap_name(i));
+ }
+};
+
+void VMOperationTypeConstant::serialize(JfrCheckpointWriter& writer) {
+ static const u4 nof_entries = VM_Operation::VMOp_Terminating;
+ writer.write_count(nof_entries);
+ for (u4 i = 0; i < nof_entries; ++i) {
+ writer.write_key(i);
+ writer.write(VM_Operation::name(VM_Operation::VMOp_Type(i)));
+ }
+}
+
+class TypeSetSerialization {
+ private:
+ bool _class_unload;
+ public:
+ explicit TypeSetSerialization(bool class_unload) : _class_unload(class_unload) {}
+ void write(JfrCheckpointWriter& writer, JfrCheckpointWriter* leakp_writer) {
+ JfrTypeSet::serialize(&writer, leakp_writer, _class_unload);
+ }
+};
+
+void ClassUnloadTypeSet::serialize(JfrCheckpointWriter& writer) {
+ TypeSetSerialization type_set(true);
+ if (LeakProfiler::is_running()) {
+ JfrCheckpointWriter leakp_writer(false, true, Thread::current());
+ type_set.write(writer, &leakp_writer);
+ ObjectSampleCheckpoint::install(leakp_writer, true, true);
+ return;
+ }
+ type_set.write(writer, NULL);
+};
+
+void TypeSet::serialize(JfrCheckpointWriter& writer) {
+ TypeSetSerialization type_set(false);
+ if (LeakProfiler::is_suspended()) {
+ JfrCheckpointWriter leakp_writer(false, true, Thread::current());
+ type_set.write(writer, &leakp_writer);
+ ObjectSampleCheckpoint::install(leakp_writer, false, true);
+ return;
+ }
+ type_set.write(writer, NULL);
+};
+
+void ThreadStateConstant::serialize(JfrCheckpointWriter& writer) {
+ JfrThreadState::serialize(writer);
+}
+
+void JfrThreadConstant::serialize(JfrCheckpointWriter& writer) {
+ assert(_thread != NULL, "invariant");
+ assert(_thread == Thread::current(), "invariant");
+ assert(_thread->is_Java_thread(), "invariant");
+ assert(!_thread->jfr_thread_local()->has_thread_checkpoint(), "invariant");
+ ResourceMark rm(_thread);
+ const oop threadObj = _thread->threadObj();
+ assert(threadObj != NULL, "invariant");
+ const u8 java_lang_thread_id = java_lang_Thread::thread_id(threadObj);
+ const char* const thread_name = _thread->name();
+ const traceid thread_group_id = JfrThreadGroup::thread_group_id(_thread);
+ writer.write_count(1);
+ writer.write_key(_thread->jfr_thread_local()->thread_id());
+ writer.write(thread_name);
+ writer.write((u8)_thread->osthread()->thread_id());
+ writer.write(thread_name);
+ writer.write(java_lang_thread_id);
+ writer.write(thread_group_id);
+ JfrThreadGroup::serialize(&writer, thread_group_id);
+}