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/*
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* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "classfile/classLoaderData.inline.hpp"
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#include "classfile/javaClasses.inline.hpp"
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#include "classfile/moduleEntry.hpp"
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#include "classfile/packageEntry.hpp"
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#include "classfile/symbolTable.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "jfr/jfr.hpp"
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#include "jfr/jni/jfrGetAllEventClasses.hpp"
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#include "jfr/recorder/checkpoint/jfrCheckpointWriter.hpp"
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#include "jfr/recorder/checkpoint/types/jfrTypeSet.hpp"
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#include "jfr/recorder/checkpoint/types/jfrTypeSetUtils.hpp"
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#include "jfr/recorder/checkpoint/types/jfrTypeSetWriter.hpp"
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#include "jfr/recorder/checkpoint/types/traceid/jfrTraceId.inline.hpp"
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#include "jfr/recorder/storage/jfrBuffer.hpp"
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#include "jfr/utilities/jfrHashtable.hpp"
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#include "jfr/utilities/jfrTypes.hpp"
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#include "memory/iterator.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/objArrayKlass.hpp"
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#include "oops/oop.inline.hpp"
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#include "memory/resourceArea.hpp"
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#include "utilities/accessFlags.hpp"
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// incremented on each checkpoint
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static u8 checkpoint_id = 0;
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// creates a unique id by combining a checkpoint relative symbol id (2^24)
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// with the current checkpoint id (2^40)
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#define CREATE_SYMBOL_ID(sym_id) (((u8)((checkpoint_id << 24) | sym_id)))
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typedef const Klass* KlassPtr;
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typedef const PackageEntry* PkgPtr;
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typedef const ModuleEntry* ModPtr;
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typedef const ClassLoaderData* CldPtr;
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typedef const Method* MethodPtr;
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typedef const Symbol* SymbolPtr;
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typedef const JfrSymbolId::SymbolEntry* SymbolEntryPtr;
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typedef const JfrSymbolId::CStringEntry* CStringEntryPtr;
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static traceid module_id(PkgPtr pkg) {
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assert(pkg != NULL, "invariant");
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ModPtr module_entry = pkg->module();
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return module_entry != NULL && module_entry->is_named() ? TRACE_ID(module_entry) : 0;
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}
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static traceid package_id(KlassPtr klass) {
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assert(klass != NULL, "invariant");
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PkgPtr pkg_entry = klass->package();
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return pkg_entry == NULL ? 0 : TRACE_ID(pkg_entry);
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}
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static traceid cld_id(CldPtr cld) {
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assert(cld != NULL, "invariant");
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return cld->is_anonymous() ? 0 : TRACE_ID(cld);
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}
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static void tag_leakp_klass_artifacts(KlassPtr k, bool class_unload) {
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assert(k != NULL, "invariant");
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PkgPtr pkg = k->package();
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if (pkg != NULL) {
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tag_leakp_artifact(pkg, class_unload);
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ModPtr module = pkg->module();
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if (module != NULL) {
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tag_leakp_artifact(module, class_unload);
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}
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}
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CldPtr cld = k->class_loader_data();
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assert(cld != NULL, "invariant");
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if (!cld->is_anonymous()) {
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tag_leakp_artifact(cld, class_unload);
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}
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}
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class TagLeakpKlassArtifact {
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bool _class_unload;
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public:
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TagLeakpKlassArtifact(bool class_unload) : _class_unload(class_unload) {}
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bool operator()(KlassPtr klass) {
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if (_class_unload) {
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if (LEAKP_USED_THIS_EPOCH(klass)) {
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tag_leakp_klass_artifacts(klass, _class_unload);
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}
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} else {
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if (LEAKP_USED_PREV_EPOCH(klass)) {
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tag_leakp_klass_artifacts(klass, _class_unload);
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}
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}
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return true;
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}
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};
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/*
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* In C++03, functions used as template parameters must have external linkage;
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* this restriction was removed in C++11. Change back to "static" and
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* rename functions when C++11 becomes available.
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*
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* The weird naming is an effort to decrease the risk of name clashes.
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*/
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int write__artifact__klass(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* k) {
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assert(writer != NULL, "invariant");
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assert(artifacts != NULL, "invariant");
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assert(k != NULL, "invariant");
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KlassPtr klass = (KlassPtr)k;
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traceid pkg_id = 0;
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KlassPtr theklass = klass;
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if (theklass->is_objArray_klass()) {
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const ObjArrayKlass* obj_arr_klass = ObjArrayKlass::cast(klass);
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theklass = obj_arr_klass->bottom_klass();
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}
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if (theklass->is_instance_klass()) {
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pkg_id = package_id(theklass);
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} else {
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assert(theklass->is_typeArray_klass(), "invariant");
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}
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const traceid symbol_id = artifacts->mark(klass);
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assert(symbol_id > 0, "need to have an address for symbol!");
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writer->write(TRACE_ID(klass));
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writer->write(cld_id(klass->class_loader_data()));
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writer->write((traceid)CREATE_SYMBOL_ID(symbol_id));
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writer->write(pkg_id);
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writer->write((s4)klass->access_flags().get_flags());
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return 1;
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}
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typedef LeakPredicate<KlassPtr> LeakKlassPredicate;
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typedef JfrPredicatedArtifactWriterImplHost<KlassPtr, LeakKlassPredicate, write__artifact__klass> LeakKlassWriterImpl;
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typedef JfrArtifactWriterHost<LeakKlassWriterImpl, TYPE_CLASS> LeakKlassWriter;
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typedef JfrArtifactWriterImplHost<KlassPtr, write__artifact__klass> KlassWriterImpl;
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typedef JfrArtifactWriterHost<KlassWriterImpl, TYPE_CLASS> KlassWriter;
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int write__artifact__method(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* m) {
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assert(writer != NULL, "invariant");
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assert(artifacts != NULL, "invariant");
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assert(m != NULL, "invariant");
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MethodPtr method = (MethodPtr)m;
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const traceid method_name_symbol_id = artifacts->mark(method->name());
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assert(method_name_symbol_id > 0, "invariant");
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const traceid method_sig_symbol_id = artifacts->mark(method->signature());
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assert(method_sig_symbol_id > 0, "invariant");
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KlassPtr klass = method->method_holder();
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assert(klass != NULL, "invariant");
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assert(METHOD_USED_ANY_EPOCH(klass), "invariant");
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writer->write((u8)METHOD_ID(klass, method));
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writer->write((u8)TRACE_ID(klass));
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writer->write((u8)CREATE_SYMBOL_ID(method_name_symbol_id));
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writer->write((u8)CREATE_SYMBOL_ID(method_sig_symbol_id));
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writer->write((u2)method->access_flags().get_flags());
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writer->write(const_cast<Method*>(method)->is_hidden() ? (u1)1 : (u1)0);
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return 1;
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}
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typedef JfrArtifactWriterImplHost<MethodPtr, write__artifact__method> MethodWriterImplTarget;
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typedef JfrArtifactWriterHost<MethodWriterImplTarget, TYPE_METHOD> MethodWriterImpl;
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int write__artifact__package(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* p) {
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assert(writer != NULL, "invariant");
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assert(artifacts != NULL, "invariant");
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assert(p != NULL, "invariant");
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PkgPtr pkg = (PkgPtr)p;
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Symbol* const pkg_name = pkg->name();
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const traceid package_name_symbol_id = pkg_name != NULL ? artifacts->mark(pkg_name) : 0;
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assert(package_name_symbol_id > 0, "invariant");
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writer->write((traceid)TRACE_ID(pkg));
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writer->write((traceid)CREATE_SYMBOL_ID(package_name_symbol_id));
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writer->write(module_id(pkg));
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writer->write((bool)pkg->is_exported());
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return 1;
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}
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typedef LeakPredicate<PkgPtr> LeakPackagePredicate;
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int _compare_pkg_ptr_(PkgPtr const& lhs, PkgPtr const& rhs) { return lhs > rhs ? 1 : (lhs < rhs) ? -1 : 0; }
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typedef UniquePredicate<PkgPtr, _compare_pkg_ptr_> PackagePredicate;
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typedef JfrPredicatedArtifactWriterImplHost<PkgPtr, LeakPackagePredicate, write__artifact__package> LeakPackageWriterImpl;
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typedef JfrPredicatedArtifactWriterImplHost<PkgPtr, PackagePredicate, write__artifact__package> PackageWriterImpl;
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typedef JfrArtifactWriterHost<LeakPackageWriterImpl, TYPE_PACKAGE> LeakPackageWriter;
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typedef JfrArtifactWriterHost<PackageWriterImpl, TYPE_PACKAGE> PackageWriter;
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int write__artifact__module(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* m) {
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assert( m != NULL, "invariant");
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ModPtr entry = (ModPtr)m;
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Symbol* const module_name = entry->name();
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const traceid module_name_symbol_id = module_name != NULL ? artifacts->mark(module_name) : 0;
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Symbol* const module_version = entry->version();
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const traceid module_version_symbol_id = module_version != NULL ? artifacts->mark(module_version) : 0;
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Symbol* const module_location = entry->location();
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const traceid module_location_symbol_id = module_location != NULL ? artifacts->mark(module_location) : 0;
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writer->write((traceid)TRACE_ID(entry));
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writer->write(module_name_symbol_id == 0 ? (traceid)0 : (traceid)CREATE_SYMBOL_ID(module_name_symbol_id));
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writer->write(module_version_symbol_id == 0 ? (traceid)0 : (traceid)CREATE_SYMBOL_ID(module_version_symbol_id));
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writer->write(module_location_symbol_id == 0 ? (traceid)0 : (traceid)CREATE_SYMBOL_ID(module_location_symbol_id));
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writer->write(cld_id(entry->loader_data()));
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return 1;
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}
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typedef LeakPredicate<ModPtr> LeakModulePredicate;
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int _compare_mod_ptr_(ModPtr const& lhs, ModPtr const& rhs) { return lhs > rhs ? 1 : (lhs < rhs) ? -1 : 0; }
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typedef UniquePredicate<ModPtr, _compare_mod_ptr_> ModulePredicate;
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typedef JfrPredicatedArtifactWriterImplHost<ModPtr, LeakModulePredicate, write__artifact__module> LeakModuleWriterImpl;
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typedef JfrPredicatedArtifactWriterImplHost<ModPtr, ModulePredicate, write__artifact__module> ModuleWriterImpl;
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typedef JfrArtifactWriterHost<LeakModuleWriterImpl, TYPE_MODULE> LeakModuleWriter;
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typedef JfrArtifactWriterHost<ModuleWriterImpl, TYPE_MODULE> ModuleWriter;
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int write__artifact__classloader(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* c) {
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assert(c != NULL, "invariant");
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CldPtr cld = (CldPtr)c;
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assert(!cld->is_anonymous(), "invariant");
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const traceid cld_id = TRACE_ID(cld);
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// class loader type
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const Klass* class_loader_klass = cld->class_loader_klass();
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if (class_loader_klass == NULL) {
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// (primordial) boot class loader
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writer->write(cld_id); // class loader instance id
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writer->write((traceid)0); // class loader type id (absence of)
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writer->write((traceid)CREATE_SYMBOL_ID(1)); // 1 maps to synthetic name -> "boot"
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} else {
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Symbol* symbol_name = cld->class_loader_name();
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const traceid symbol_name_id = symbol_name != NULL ? artifacts->mark(symbol_name) : 0;
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writer->write(cld_id); // class loader instance id
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writer->write(TRACE_ID(class_loader_klass)); // class loader type id
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writer->write(symbol_name_id == 0 ? (traceid)0 :
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(traceid)CREATE_SYMBOL_ID(symbol_name_id)); // class loader instance name
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}
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return 1;
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}
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typedef LeakPredicate<CldPtr> LeakCldPredicate;
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int _compare_cld_ptr_(CldPtr const& lhs, CldPtr const& rhs) { return lhs > rhs ? 1 : (lhs < rhs) ? -1 : 0; }
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typedef UniquePredicate<CldPtr, _compare_cld_ptr_> CldPredicate;
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typedef JfrPredicatedArtifactWriterImplHost<CldPtr, LeakCldPredicate, write__artifact__classloader> LeakCldWriterImpl;
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typedef JfrPredicatedArtifactWriterImplHost<CldPtr, CldPredicate, write__artifact__classloader> CldWriterImpl;
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typedef JfrArtifactWriterHost<LeakCldWriterImpl, TYPE_CLASSLOADER> LeakCldWriter;
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typedef JfrArtifactWriterHost<CldWriterImpl, TYPE_CLASSLOADER> CldWriter;
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typedef const JfrSymbolId::SymbolEntry* SymbolEntryPtr;
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static int write__artifact__symbol__entry__(JfrCheckpointWriter* writer,
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SymbolEntryPtr entry) {
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assert(writer != NULL, "invariant");
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assert(entry != NULL, "invariant");
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ResourceMark rm;
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writer->write(CREATE_SYMBOL_ID(entry->id()));
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writer->write(entry->value()->as_C_string());
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return 1;
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}
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int write__artifact__symbol__entry(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* e) {
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assert(e != NULL, "invariant");
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return write__artifact__symbol__entry__(writer, (SymbolEntryPtr)e);
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}
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typedef JfrArtifactWriterImplHost<SymbolEntryPtr, write__artifact__symbol__entry> SymbolEntryWriterImpl;
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typedef JfrArtifactWriterHost<SymbolEntryWriterImpl, TYPE_SYMBOL> SymbolEntryWriter;
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typedef const JfrSymbolId::CStringEntry* CStringEntryPtr;
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static int write__artifact__cstring__entry__(JfrCheckpointWriter* writer, CStringEntryPtr entry) {
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assert(writer != NULL, "invariant");
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assert(entry != NULL, "invariant");
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writer->write(CREATE_SYMBOL_ID(entry->id()));
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writer->write(entry->value());
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return 1;
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}
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int write__artifact__cstring__entry(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* e) {
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assert(e != NULL, "invariant");
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return write__artifact__cstring__entry__(writer, (CStringEntryPtr)e);
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}
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typedef JfrArtifactWriterImplHost<CStringEntryPtr, write__artifact__cstring__entry> CStringEntryWriterImpl;
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typedef JfrArtifactWriterHost<CStringEntryWriterImpl, TYPE_SYMBOL> CStringEntryWriter;
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int write__artifact__klass__symbol(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, const void* k) {
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assert(writer != NULL, "invariant");
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assert(artifacts != NULL, "invaiant");
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assert(k != NULL, "invariant");
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const InstanceKlass* const ik = (const InstanceKlass*)k;
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if (ik->is_anonymous()) {
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CStringEntryPtr entry =
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artifacts->map_cstring(JfrSymbolId::anonymous_klass_name_hash_code(ik));
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assert(entry != NULL, "invariant");
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return write__artifact__cstring__entry__(writer, entry);
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}
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SymbolEntryPtr entry = artifacts->map_symbol(JfrSymbolId::regular_klass_name_hash_code(ik));
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return write__artifact__symbol__entry__(writer, entry);
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}
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int _compare_traceid_(const traceid& lhs, const traceid& rhs) {
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return lhs > rhs ? 1 : (lhs < rhs) ? -1 : 0;
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}
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template <template <typename> class Predicate>
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class KlassSymbolWriterImpl {
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private:
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JfrCheckpointWriter* _writer;
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JfrArtifactSet* _artifacts;
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Predicate<KlassPtr> _predicate;
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MethodUsedPredicate<true> _method_used_predicate;
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MethodFlagPredicate _method_flag_predicate;
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UniquePredicate<traceid, _compare_traceid_> _unique_predicate;
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int klass_symbols(KlassPtr klass);
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int package_symbols(PkgPtr pkg);
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int module_symbols(ModPtr module);
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int class_loader_symbols(CldPtr cld);
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int method_symbols(KlassPtr klass);
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public:
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typedef KlassPtr Type;
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KlassSymbolWriterImpl(JfrCheckpointWriter* writer,
|
|
338 |
JfrArtifactSet* artifacts,
|
|
339 |
bool class_unload) : _writer(writer),
|
|
340 |
_artifacts(artifacts),
|
|
341 |
_predicate(class_unload),
|
|
342 |
_method_used_predicate(class_unload),
|
|
343 |
_method_flag_predicate(class_unload),
|
|
344 |
_unique_predicate(class_unload) {}
|
|
345 |
|
|
346 |
int operator()(KlassPtr klass) {
|
|
347 |
assert(klass != NULL, "invariant");
|
|
348 |
int count = 0;
|
|
349 |
if (_predicate(klass)) {
|
|
350 |
count += klass_symbols(klass);
|
|
351 |
PkgPtr pkg = klass->package();
|
|
352 |
if (pkg != NULL) {
|
|
353 |
count += package_symbols(pkg);
|
|
354 |
ModPtr module = pkg->module();
|
|
355 |
if (module != NULL && module->is_named()) {
|
|
356 |
count += module_symbols(module);
|
|
357 |
}
|
|
358 |
}
|
|
359 |
CldPtr cld = klass->class_loader_data();
|
|
360 |
assert(cld != NULL, "invariant");
|
|
361 |
if (!cld->is_anonymous()) {
|
|
362 |
count += class_loader_symbols(cld);
|
|
363 |
}
|
|
364 |
if (_method_used_predicate(klass)) {
|
|
365 |
count += method_symbols(klass);
|
|
366 |
}
|
|
367 |
}
|
|
368 |
return count;
|
|
369 |
}
|
|
370 |
};
|
|
371 |
|
|
372 |
template <template <typename> class Predicate>
|
|
373 |
int KlassSymbolWriterImpl<Predicate>::klass_symbols(KlassPtr klass) {
|
|
374 |
assert(klass != NULL, "invariant");
|
|
375 |
assert(_predicate(klass), "invariant");
|
|
376 |
const InstanceKlass* const ik = (const InstanceKlass*)klass;
|
|
377 |
if (ik->is_anonymous()) {
|
|
378 |
CStringEntryPtr entry =
|
|
379 |
this->_artifacts->map_cstring(JfrSymbolId::anonymous_klass_name_hash_code(ik));
|
|
380 |
assert(entry != NULL, "invariant");
|
|
381 |
return _unique_predicate(entry->id()) ? write__artifact__cstring__entry__(this->_writer, entry) : 0;
|
|
382 |
}
|
|
383 |
SymbolEntryPtr entry = this->_artifacts->map_symbol(ik->name());
|
|
384 |
assert(entry != NULL, "invariant");
|
|
385 |
return _unique_predicate(entry->id()) ? write__artifact__symbol__entry__(this->_writer, entry) : 0;
|
|
386 |
}
|
|
387 |
|
|
388 |
template <template <typename> class Predicate>
|
|
389 |
int KlassSymbolWriterImpl<Predicate>::package_symbols(PkgPtr pkg) {
|
|
390 |
assert(pkg != NULL, "invariant");
|
|
391 |
SymbolPtr pkg_name = pkg->name();
|
|
392 |
assert(pkg_name != NULL, "invariant");
|
|
393 |
SymbolEntryPtr package_symbol = this->_artifacts->map_symbol(pkg_name);
|
|
394 |
assert(package_symbol != NULL, "invariant");
|
|
395 |
return _unique_predicate(package_symbol->id()) ?
|
|
396 |
write__artifact__symbol__entry__(this->_writer, package_symbol) : 0;
|
|
397 |
}
|
|
398 |
|
|
399 |
template <template <typename> class Predicate>
|
|
400 |
int KlassSymbolWriterImpl<Predicate>::module_symbols(ModPtr module) {
|
|
401 |
assert(module != NULL, "invariant");
|
|
402 |
assert(module->is_named(), "invariant");
|
|
403 |
int count = 0;
|
|
404 |
SymbolPtr sym = module->name();
|
|
405 |
SymbolEntryPtr entry = NULL;
|
|
406 |
if (sym != NULL) {
|
|
407 |
entry = this->_artifacts->map_symbol(sym);
|
|
408 |
assert(entry != NULL, "invariant");
|
|
409 |
if (_unique_predicate(entry->id())) {
|
|
410 |
count += write__artifact__symbol__entry__(this->_writer, entry);
|
|
411 |
}
|
|
412 |
}
|
|
413 |
sym = module->version();
|
|
414 |
if (sym != NULL) {
|
|
415 |
entry = this->_artifacts->map_symbol(sym);
|
|
416 |
assert(entry != NULL, "invariant");
|
|
417 |
if (_unique_predicate(entry->id())) {
|
|
418 |
count += write__artifact__symbol__entry__(this->_writer, entry);
|
|
419 |
}
|
|
420 |
}
|
|
421 |
sym = module->location();
|
|
422 |
if (sym != NULL) {
|
|
423 |
entry = this->_artifacts->map_symbol(sym);
|
|
424 |
assert(entry != NULL, "invariant");
|
|
425 |
if (_unique_predicate(entry->id())) {
|
|
426 |
count += write__artifact__symbol__entry__(this->_writer, entry);
|
|
427 |
}
|
|
428 |
}
|
|
429 |
return count;
|
|
430 |
}
|
|
431 |
|
|
432 |
template <template <typename> class Predicate>
|
|
433 |
int KlassSymbolWriterImpl<Predicate>::class_loader_symbols(CldPtr cld) {
|
|
434 |
assert(cld != NULL, "invariant");
|
|
435 |
assert(!cld->is_anonymous(), "invariant");
|
|
436 |
int count = 0;
|
|
437 |
// class loader type
|
|
438 |
const Klass* class_loader_klass = cld->class_loader_klass();
|
|
439 |
if (class_loader_klass == NULL) {
|
|
440 |
// (primordial) boot class loader
|
|
441 |
CStringEntryPtr entry = this->_artifacts->map_cstring(0);
|
|
442 |
assert(entry != NULL, "invariant");
|
|
443 |
assert(strncmp(entry->literal(),
|
|
444 |
boot_class_loader_name,
|
|
445 |
strlen(boot_class_loader_name)) == 0, "invariant");
|
|
446 |
if (_unique_predicate(entry->id())) {
|
|
447 |
count += write__artifact__cstring__entry__(this->_writer, entry);
|
|
448 |
}
|
|
449 |
} else {
|
|
450 |
const Symbol* class_loader_name = cld->class_loader_name();
|
|
451 |
if (class_loader_name != NULL) {
|
|
452 |
SymbolEntryPtr entry = this->_artifacts->map_symbol(class_loader_name);
|
|
453 |
assert(entry != NULL, "invariant");
|
|
454 |
if (_unique_predicate(entry->id())) {
|
|
455 |
count += write__artifact__symbol__entry__(this->_writer, entry);
|
|
456 |
}
|
|
457 |
}
|
|
458 |
}
|
|
459 |
return count;
|
|
460 |
}
|
|
461 |
|
|
462 |
template <template <typename> class Predicate>
|
|
463 |
int KlassSymbolWriterImpl<Predicate>::method_symbols(KlassPtr klass) {
|
|
464 |
assert(_predicate(klass), "invariant");
|
|
465 |
assert(_method_used_predicate(klass), "invariant");
|
|
466 |
assert(METHOD_AND_CLASS_USED_ANY_EPOCH(klass), "invariant");
|
|
467 |
int count = 0;
|
|
468 |
const InstanceKlass* const ik = InstanceKlass::cast(klass);
|
|
469 |
const int len = ik->methods()->length();
|
|
470 |
for (int i = 0; i < len; ++i) {
|
|
471 |
MethodPtr method = ik->methods()->at(i);
|
|
472 |
if (_method_flag_predicate(method)) {
|
|
473 |
SymbolEntryPtr entry = this->_artifacts->map_symbol(method->name());
|
|
474 |
assert(entry != NULL, "invariant");
|
|
475 |
if (_unique_predicate(entry->id())) {
|
|
476 |
count += write__artifact__symbol__entry__(this->_writer, entry);
|
|
477 |
}
|
|
478 |
entry = this->_artifacts->map_symbol(method->signature());
|
|
479 |
assert(entry != NULL, "invariant");
|
|
480 |
if (_unique_predicate(entry->id())) {
|
|
481 |
count += write__artifact__symbol__entry__(this->_writer, entry);
|
|
482 |
}
|
|
483 |
}
|
|
484 |
}
|
|
485 |
return count;
|
|
486 |
}
|
|
487 |
|
|
488 |
typedef KlassSymbolWriterImpl<LeakPredicate> LeakKlassSymbolWriterImpl;
|
|
489 |
typedef JfrArtifactWriterHost<LeakKlassSymbolWriterImpl, TYPE_SYMBOL> LeakKlassSymbolWriter;
|
|
490 |
|
|
491 |
class ClearKlassAndMethods {
|
|
492 |
private:
|
|
493 |
ClearArtifact<KlassPtr> _clear_klass_tag_bits;
|
|
494 |
ClearArtifact<MethodPtr> _clear_method_flag;
|
|
495 |
MethodUsedPredicate<false> _method_used_predicate;
|
|
496 |
|
|
497 |
public:
|
|
498 |
ClearKlassAndMethods(bool class_unload) : _clear_klass_tag_bits(class_unload),
|
|
499 |
_clear_method_flag(class_unload),
|
|
500 |
_method_used_predicate(class_unload) {}
|
|
501 |
bool operator()(KlassPtr klass) {
|
|
502 |
if (_method_used_predicate(klass)) {
|
|
503 |
const InstanceKlass* ik = InstanceKlass::cast(klass);
|
|
504 |
const int len = ik->methods()->length();
|
|
505 |
for (int i = 0; i < len; ++i) {
|
|
506 |
MethodPtr method = ik->methods()->at(i);
|
|
507 |
_clear_method_flag(method);
|
|
508 |
}
|
|
509 |
}
|
|
510 |
_clear_klass_tag_bits(klass);
|
|
511 |
return true;
|
|
512 |
}
|
|
513 |
};
|
|
514 |
|
|
515 |
typedef CompositeFunctor<KlassPtr,
|
|
516 |
TagLeakpKlassArtifact,
|
|
517 |
LeakKlassWriter> LeakpKlassArtifactTagging;
|
|
518 |
|
|
519 |
typedef CompositeFunctor<KlassPtr,
|
|
520 |
LeakpKlassArtifactTagging,
|
|
521 |
KlassWriter> CompositeKlassWriter;
|
|
522 |
|
|
523 |
typedef CompositeFunctor<KlassPtr,
|
|
524 |
CompositeKlassWriter,
|
|
525 |
KlassArtifactRegistrator> CompositeKlassWriterRegistration;
|
|
526 |
|
|
527 |
typedef CompositeFunctor<KlassPtr,
|
|
528 |
KlassWriter,
|
|
529 |
KlassArtifactRegistrator> KlassWriterRegistration;
|
|
530 |
|
|
531 |
typedef JfrArtifactCallbackHost<KlassPtr, KlassWriterRegistration> KlassCallback;
|
|
532 |
typedef JfrArtifactCallbackHost<KlassPtr, CompositeKlassWriterRegistration> CompositeKlassCallback;
|
|
533 |
|
|
534 |
/*
|
|
535 |
* Composite operation
|
|
536 |
*
|
|
537 |
* TagLeakpKlassArtifact ->
|
|
538 |
* LeakpPredicate ->
|
|
539 |
* LeakpKlassWriter ->
|
|
540 |
* KlassPredicate ->
|
|
541 |
* KlassWriter ->
|
|
542 |
* KlassWriterRegistration
|
|
543 |
*/
|
|
544 |
void JfrTypeSet::write_klass_constants(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer) {
|
|
545 |
assert(!_artifacts->has_klass_entries(), "invariant");
|
|
546 |
KlassArtifactRegistrator reg(_artifacts);
|
|
547 |
KlassWriter kw(writer, _artifacts, _class_unload);
|
|
548 |
KlassWriterRegistration kwr(&kw, ®);
|
|
549 |
if (leakp_writer == NULL) {
|
|
550 |
KlassCallback callback(&kwr);
|
|
551 |
_subsystem_callback = &callback;
|
|
552 |
do_klasses();
|
|
553 |
return;
|
|
554 |
}
|
|
555 |
TagLeakpKlassArtifact tagging(_class_unload);
|
|
556 |
LeakKlassWriter lkw(leakp_writer, _artifacts, _class_unload);
|
|
557 |
LeakpKlassArtifactTagging lpkat(&tagging, &lkw);
|
|
558 |
CompositeKlassWriter ckw(&lpkat, &kw);
|
|
559 |
CompositeKlassWriterRegistration ckwr(&ckw, ®);
|
|
560 |
CompositeKlassCallback callback(&ckwr);
|
|
561 |
_subsystem_callback = &callback;
|
|
562 |
do_klasses();
|
|
563 |
}
|
|
564 |
|
|
565 |
typedef CompositeFunctor<PkgPtr,
|
|
566 |
PackageWriter,
|
|
567 |
ClearArtifact<PkgPtr> > PackageWriterWithClear;
|
|
568 |
|
|
569 |
typedef CompositeFunctor<PkgPtr,
|
|
570 |
LeakPackageWriter,
|
|
571 |
PackageWriter> CompositePackageWriter;
|
|
572 |
|
|
573 |
typedef CompositeFunctor<PkgPtr,
|
|
574 |
CompositePackageWriter,
|
|
575 |
ClearArtifact<PkgPtr> > CompositePackageWriterWithClear;
|
|
576 |
|
|
577 |
class PackageFieldSelector {
|
|
578 |
public:
|
|
579 |
typedef PkgPtr TypePtr;
|
|
580 |
static TypePtr select(KlassPtr klass) {
|
|
581 |
assert(klass != NULL, "invariant");
|
|
582 |
return ((InstanceKlass*)klass)->package();
|
|
583 |
}
|
|
584 |
};
|
|
585 |
|
|
586 |
typedef KlassToFieldEnvelope<PackageFieldSelector,
|
|
587 |
PackageWriterWithClear> KlassPackageWriterWithClear;
|
|
588 |
|
|
589 |
typedef KlassToFieldEnvelope<PackageFieldSelector,
|
|
590 |
CompositePackageWriterWithClear> KlassCompositePackageWriterWithClear;
|
|
591 |
|
|
592 |
typedef JfrArtifactCallbackHost<PkgPtr, PackageWriterWithClear> PackageCallback;
|
|
593 |
typedef JfrArtifactCallbackHost<PkgPtr, CompositePackageWriterWithClear> CompositePackageCallback;
|
|
594 |
|
|
595 |
/*
|
|
596 |
* Composite operation
|
|
597 |
*
|
|
598 |
* LeakpPackageWriter ->
|
|
599 |
* PackageWriter ->
|
|
600 |
* ClearArtifact<PackageEntry>
|
|
601 |
*
|
|
602 |
*/
|
|
603 |
void JfrTypeSet::write_package_constants(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer) {
|
|
604 |
assert(_artifacts->has_klass_entries(), "invariant");
|
|
605 |
ClearArtifact<PkgPtr> clear(_class_unload);
|
|
606 |
PackageWriter pw(writer, _artifacts, _class_unload);
|
|
607 |
if (leakp_writer == NULL) {
|
|
608 |
PackageWriterWithClear pwwc(&pw, &clear);
|
|
609 |
KlassPackageWriterWithClear kpwwc(&pwwc);
|
|
610 |
_artifacts->iterate_klasses(kpwwc);
|
|
611 |
PackageCallback callback(&pwwc);
|
|
612 |
_subsystem_callback = &callback;
|
|
613 |
do_packages();
|
|
614 |
return;
|
|
615 |
}
|
|
616 |
LeakPackageWriter lpw(leakp_writer, _artifacts, _class_unload);
|
|
617 |
CompositePackageWriter cpw(&lpw, &pw);
|
|
618 |
CompositePackageWriterWithClear cpwwc(&cpw, &clear);
|
|
619 |
KlassCompositePackageWriterWithClear ckpw(&cpwwc);
|
|
620 |
_artifacts->iterate_klasses(ckpw);
|
|
621 |
CompositePackageCallback callback(&cpwwc);
|
|
622 |
_subsystem_callback = &callback;
|
|
623 |
do_packages();
|
|
624 |
}
|
|
625 |
|
|
626 |
typedef CompositeFunctor<ModPtr,
|
|
627 |
ModuleWriter,
|
|
628 |
ClearArtifact<ModPtr> > ModuleWriterWithClear;
|
|
629 |
|
|
630 |
typedef CompositeFunctor<ModPtr,
|
|
631 |
LeakModuleWriter,
|
|
632 |
ModuleWriter> CompositeModuleWriter;
|
|
633 |
|
|
634 |
typedef CompositeFunctor<ModPtr,
|
|
635 |
CompositeModuleWriter,
|
|
636 |
ClearArtifact<ModPtr> > CompositeModuleWriterWithClear;
|
|
637 |
|
|
638 |
typedef JfrArtifactCallbackHost<ModPtr, ModuleWriterWithClear> ModuleCallback;
|
|
639 |
typedef JfrArtifactCallbackHost<ModPtr, CompositeModuleWriterWithClear> CompositeModuleCallback;
|
|
640 |
|
|
641 |
class ModuleFieldSelector {
|
|
642 |
public:
|
|
643 |
typedef ModPtr TypePtr;
|
|
644 |
static TypePtr select(KlassPtr klass) {
|
|
645 |
assert(klass != NULL, "invariant");
|
|
646 |
PkgPtr pkg = klass->package();
|
|
647 |
return pkg != NULL ? pkg->module() : NULL;
|
|
648 |
}
|
|
649 |
};
|
|
650 |
|
|
651 |
typedef KlassToFieldEnvelope<ModuleFieldSelector,
|
|
652 |
ModuleWriterWithClear> KlassModuleWriterWithClear;
|
|
653 |
|
|
654 |
typedef KlassToFieldEnvelope<ModuleFieldSelector,
|
|
655 |
CompositeModuleWriterWithClear> KlassCompositeModuleWriterWithClear;
|
|
656 |
|
|
657 |
/*
|
|
658 |
* Composite operation
|
|
659 |
*
|
|
660 |
* LeakpModuleWriter ->
|
|
661 |
* ModuleWriter ->
|
|
662 |
* ClearArtifact<ModuleEntry>
|
|
663 |
*/
|
|
664 |
void JfrTypeSet::write_module_constants(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer) {
|
|
665 |
assert(_artifacts->has_klass_entries(), "invariant");
|
|
666 |
ClearArtifact<ModPtr> clear(_class_unload);
|
|
667 |
ModuleWriter mw(writer, _artifacts, _class_unload);
|
|
668 |
if (leakp_writer == NULL) {
|
|
669 |
ModuleWriterWithClear mwwc(&mw, &clear);
|
|
670 |
KlassModuleWriterWithClear kmwwc(&mwwc);
|
|
671 |
_artifacts->iterate_klasses(kmwwc);
|
|
672 |
ModuleCallback callback(&mwwc);
|
|
673 |
_subsystem_callback = &callback;
|
|
674 |
do_modules();
|
|
675 |
return;
|
|
676 |
}
|
|
677 |
LeakModuleWriter lmw(leakp_writer, _artifacts, _class_unload);
|
|
678 |
CompositeModuleWriter cmw(&lmw, &mw);
|
|
679 |
CompositeModuleWriterWithClear cmwwc(&cmw, &clear);
|
|
680 |
KlassCompositeModuleWriterWithClear kmwwc(&cmwwc);
|
|
681 |
_artifacts->iterate_klasses(kmwwc);
|
|
682 |
CompositeModuleCallback callback(&cmwwc);
|
|
683 |
_subsystem_callback = &callback;
|
|
684 |
do_modules();
|
|
685 |
}
|
|
686 |
|
|
687 |
typedef CompositeFunctor<CldPtr, CldWriter, ClearArtifact<CldPtr> > CldWriterWithClear;
|
|
688 |
typedef CompositeFunctor<CldPtr, LeakCldWriter, CldWriter> CompositeCldWriter;
|
|
689 |
typedef CompositeFunctor<CldPtr, CompositeCldWriter, ClearArtifact<CldPtr> > CompositeCldWriterWithClear;
|
|
690 |
typedef JfrArtifactCallbackHost<CldPtr, CldWriterWithClear> CldCallback;
|
|
691 |
typedef JfrArtifactCallbackHost<CldPtr, CompositeCldWriterWithClear> CompositeCldCallback;
|
|
692 |
|
|
693 |
class CldFieldSelector {
|
|
694 |
public:
|
|
695 |
typedef CldPtr TypePtr;
|
|
696 |
static TypePtr select(KlassPtr klass) {
|
|
697 |
assert(klass != NULL, "invariant");
|
|
698 |
CldPtr cld = klass->class_loader_data();
|
|
699 |
return cld->is_anonymous() ? NULL : cld;
|
|
700 |
}
|
|
701 |
};
|
|
702 |
|
|
703 |
typedef KlassToFieldEnvelope<CldFieldSelector, CldWriterWithClear> KlassCldWriterWithClear;
|
|
704 |
typedef KlassToFieldEnvelope<CldFieldSelector, CompositeCldWriterWithClear> KlassCompositeCldWriterWithClear;
|
|
705 |
|
|
706 |
/*
|
|
707 |
* Composite operation
|
|
708 |
*
|
|
709 |
* LeakpClassLoaderWriter ->
|
|
710 |
* ClassLoaderWriter ->
|
|
711 |
* ClearArtifact<ClassLoaderData>
|
|
712 |
*/
|
|
713 |
void JfrTypeSet::write_class_loader_constants(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer) {
|
|
714 |
assert(_artifacts->has_klass_entries(), "invariant");
|
|
715 |
ClearArtifact<CldPtr> clear(_class_unload);
|
|
716 |
CldWriter cldw(writer, _artifacts, _class_unload);
|
|
717 |
if (leakp_writer == NULL) {
|
|
718 |
CldWriterWithClear cldwwc(&cldw, &clear);
|
|
719 |
KlassCldWriterWithClear kcldwwc(&cldwwc);
|
|
720 |
_artifacts->iterate_klasses(kcldwwc);
|
|
721 |
CldCallback callback(&cldwwc);
|
|
722 |
_subsystem_callback = &callback;
|
|
723 |
do_class_loaders();
|
|
724 |
return;
|
|
725 |
}
|
|
726 |
LeakCldWriter lcldw(leakp_writer, _artifacts, _class_unload);
|
|
727 |
CompositeCldWriter ccldw(&lcldw, &cldw);
|
|
728 |
CompositeCldWriterWithClear ccldwwc(&ccldw, &clear);
|
|
729 |
KlassCompositeCldWriterWithClear kcclwwc(&ccldwwc);
|
|
730 |
_artifacts->iterate_klasses(kcclwwc);
|
|
731 |
CompositeCldCallback callback(&ccldwwc);
|
|
732 |
_subsystem_callback = &callback;
|
|
733 |
do_class_loaders();
|
|
734 |
}
|
|
735 |
|
|
736 |
template <bool predicate_bool, typename MethodFunctor>
|
|
737 |
class MethodIteratorHost {
|
|
738 |
private:
|
|
739 |
MethodFunctor _method_functor;
|
|
740 |
MethodUsedPredicate<predicate_bool> _method_used_predicate;
|
|
741 |
MethodFlagPredicate _method_flag_predicate;
|
|
742 |
|
|
743 |
public:
|
|
744 |
MethodIteratorHost(JfrCheckpointWriter* writer,
|
|
745 |
JfrArtifactSet* artifacts,
|
|
746 |
bool class_unload,
|
|
747 |
bool skip_header = false) :
|
|
748 |
_method_functor(writer, artifacts, class_unload, skip_header),
|
|
749 |
_method_used_predicate(class_unload),
|
|
750 |
_method_flag_predicate(class_unload) {}
|
|
751 |
|
|
752 |
bool operator()(KlassPtr klass) {
|
|
753 |
if (_method_used_predicate(klass)) {
|
|
754 |
assert(METHOD_AND_CLASS_USED_ANY_EPOCH(klass), "invariant");
|
|
755 |
const InstanceKlass* ik = InstanceKlass::cast(klass);
|
|
756 |
const int len = ik->methods()->length();
|
|
757 |
for (int i = 0; i < len; ++i) {
|
|
758 |
MethodPtr method = ik->methods()->at(i);
|
|
759 |
if (_method_flag_predicate(method)) {
|
|
760 |
_method_functor(method);
|
|
761 |
}
|
|
762 |
}
|
|
763 |
}
|
|
764 |
return true;
|
|
765 |
}
|
|
766 |
|
|
767 |
int count() const { return _method_functor.count(); }
|
|
768 |
void add(int count) { _method_functor.add(count); }
|
|
769 |
};
|
|
770 |
|
|
771 |
typedef MethodIteratorHost<true /*leakp */, MethodWriterImpl> LeakMethodWriter;
|
|
772 |
typedef MethodIteratorHost<false, MethodWriterImpl> MethodWriter;
|
|
773 |
typedef CompositeFunctor<KlassPtr, LeakMethodWriter, MethodWriter> CompositeMethodWriter;
|
|
774 |
|
|
775 |
/*
|
|
776 |
* Composite operation
|
|
777 |
*
|
|
778 |
* LeakpMethodWriter ->
|
|
779 |
* MethodWriter
|
|
780 |
*/
|
|
781 |
void JfrTypeSet::write_method_constants(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer) {
|
|
782 |
assert(_artifacts->has_klass_entries(), "invariant");
|
|
783 |
MethodWriter mw(writer, _artifacts, _class_unload);
|
|
784 |
if (leakp_writer == NULL) {
|
|
785 |
_artifacts->iterate_klasses(mw);
|
|
786 |
return;
|
|
787 |
}
|
|
788 |
LeakMethodWriter lpmw(leakp_writer, _artifacts, _class_unload);
|
|
789 |
CompositeMethodWriter cmw(&lpmw, &mw);
|
|
790 |
_artifacts->iterate_klasses(cmw);
|
|
791 |
}
|
|
792 |
static void write_symbols_leakp(JfrCheckpointWriter* leakp_writer, JfrArtifactSet* artifacts, bool class_unload) {
|
|
793 |
assert(leakp_writer != NULL, "invariant");
|
|
794 |
assert(artifacts != NULL, "invariant");
|
|
795 |
LeakKlassSymbolWriter lpksw(leakp_writer, artifacts, class_unload);
|
|
796 |
artifacts->iterate_klasses(lpksw);
|
|
797 |
}
|
|
798 |
static void write_symbols(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer, JfrArtifactSet* artifacts, bool class_unload) {
|
|
799 |
assert(writer != NULL, "invariant");
|
|
800 |
assert(artifacts != NULL, "invariant");
|
|
801 |
if (leakp_writer != NULL) {
|
|
802 |
write_symbols_leakp(leakp_writer, artifacts, class_unload);
|
|
803 |
}
|
|
804 |
// iterate all registered symbols
|
|
805 |
SymbolEntryWriter symbol_writer(writer, artifacts, class_unload);
|
|
806 |
artifacts->iterate_symbols(symbol_writer);
|
|
807 |
CStringEntryWriter cstring_writer(writer, artifacts, class_unload, true); // skip header
|
|
808 |
artifacts->iterate_cstrings(cstring_writer);
|
|
809 |
symbol_writer.add(cstring_writer.count());
|
|
810 |
}
|
|
811 |
|
|
812 |
bool JfrTypeSet::_class_unload = false;
|
|
813 |
JfrArtifactSet* JfrTypeSet::_artifacts = NULL;
|
|
814 |
JfrArtifactClosure* JfrTypeSet::_subsystem_callback = NULL;
|
|
815 |
|
|
816 |
void JfrTypeSet::write_symbol_constants(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer) {
|
|
817 |
assert(writer != NULL, "invariant");
|
|
818 |
assert(_artifacts->has_klass_entries(), "invariant");
|
|
819 |
write_symbols(writer, leakp_writer, _artifacts, _class_unload);
|
|
820 |
}
|
|
821 |
|
|
822 |
void JfrTypeSet::do_unloaded_klass(Klass* klass) {
|
|
823 |
assert(klass != NULL, "invariant");
|
|
824 |
assert(_subsystem_callback != NULL, "invariant");
|
|
825 |
if (IS_JDK_JFR_EVENT_SUBKLASS(klass)) {
|
|
826 |
JfrEventClasses::increment_unloaded_event_class();
|
|
827 |
}
|
|
828 |
if (USED_THIS_EPOCH(klass)) { // includes leakp subset
|
|
829 |
_subsystem_callback->do_artifact(klass);
|
|
830 |
return;
|
|
831 |
}
|
|
832 |
if (klass->is_subclass_of(SystemDictionary::ClassLoader_klass()) || klass == SystemDictionary::Object_klass()) {
|
|
833 |
SET_LEAKP_USED_THIS_EPOCH(klass); // tag leakp "safe byte" for subset inclusion
|
|
834 |
_subsystem_callback->do_artifact(klass);
|
|
835 |
}
|
|
836 |
}
|
|
837 |
|
|
838 |
void JfrTypeSet::do_klass(Klass* klass) {
|
|
839 |
assert(klass != NULL, "invariant");
|
|
840 |
assert(_subsystem_callback != NULL, "invariant");
|
|
841 |
if (USED_PREV_EPOCH(klass)) { // includes leakp subset
|
|
842 |
_subsystem_callback->do_artifact(klass);
|
|
843 |
return;
|
|
844 |
}
|
|
845 |
if (klass->is_subclass_of(SystemDictionary::ClassLoader_klass()) || klass == SystemDictionary::Object_klass()) {
|
|
846 |
SET_LEAKP_USED_PREV_EPOCH(klass); // tag leakp "safe byte" for subset inclusion
|
|
847 |
_subsystem_callback->do_artifact(klass);
|
|
848 |
}
|
|
849 |
}
|
|
850 |
|
|
851 |
void JfrTypeSet::do_klasses() {
|
|
852 |
if (_class_unload) {
|
|
853 |
ClassLoaderDataGraph::classes_unloading_do(&do_unloaded_klass);
|
|
854 |
return;
|
|
855 |
}
|
|
856 |
ClassLoaderDataGraph::classes_do(&do_klass);
|
|
857 |
}
|
|
858 |
|
|
859 |
void JfrTypeSet::do_unloaded_package(PackageEntry* entry) {
|
|
860 |
assert(entry != NULL, "invariant");
|
|
861 |
assert(_subsystem_callback != NULL, "invariant");
|
|
862 |
if (ANY_USED_THIS_EPOCH(entry)) { // includes leakp subset
|
|
863 |
_subsystem_callback->do_artifact(entry);
|
|
864 |
}
|
|
865 |
}
|
|
866 |
|
|
867 |
void JfrTypeSet::do_package(PackageEntry* entry) {
|
|
868 |
assert(_subsystem_callback != NULL, "invariant");
|
|
869 |
if (ANY_USED_PREV_EPOCH(entry)) { // includes leakp subset
|
|
870 |
_subsystem_callback->do_artifact(entry);
|
|
871 |
}
|
|
872 |
}
|
|
873 |
|
|
874 |
void JfrTypeSet::do_packages() {
|
|
875 |
if (_class_unload) {
|
|
876 |
ClassLoaderDataGraph::packages_unloading_do(&do_unloaded_package);
|
|
877 |
return;
|
|
878 |
}
|
|
879 |
ClassLoaderDataGraph::packages_do(&do_package);
|
|
880 |
}
|
|
881 |
void JfrTypeSet::do_unloaded_module(ModuleEntry* entry) {
|
|
882 |
assert(entry != NULL, "invariant");
|
|
883 |
assert(_subsystem_callback != NULL, "invariant");
|
|
884 |
if (ANY_USED_THIS_EPOCH(entry)) { // includes leakp subset
|
|
885 |
_subsystem_callback->do_artifact(entry);
|
|
886 |
}
|
|
887 |
}
|
|
888 |
|
|
889 |
void JfrTypeSet::do_module(ModuleEntry* entry) {
|
|
890 |
assert(_subsystem_callback != NULL, "invariant");
|
|
891 |
if (ANY_USED_PREV_EPOCH(entry)) { // includes leakp subset
|
|
892 |
_subsystem_callback->do_artifact(entry);
|
|
893 |
}
|
|
894 |
}
|
|
895 |
|
|
896 |
void JfrTypeSet::do_modules() {
|
|
897 |
if (_class_unload) {
|
|
898 |
ClassLoaderDataGraph::modules_unloading_do(&do_unloaded_module);
|
|
899 |
return;
|
|
900 |
}
|
|
901 |
ClassLoaderDataGraph::modules_do(&do_module);
|
|
902 |
}
|
|
903 |
|
|
904 |
void JfrTypeSet::do_unloaded_class_loader_data(ClassLoaderData* cld) {
|
|
905 |
assert(_subsystem_callback != NULL, "invariant");
|
|
906 |
if (ANY_USED_THIS_EPOCH(cld)) { // includes leakp subset
|
|
907 |
_subsystem_callback->do_artifact(cld);
|
|
908 |
}
|
|
909 |
}
|
|
910 |
|
|
911 |
void JfrTypeSet::do_class_loader_data(ClassLoaderData* cld) {
|
|
912 |
assert(_subsystem_callback != NULL, "invariant");
|
|
913 |
if (ANY_USED_PREV_EPOCH(cld)) { // includes leakp subset
|
|
914 |
_subsystem_callback->do_artifact(cld);
|
|
915 |
}
|
|
916 |
}
|
|
917 |
|
|
918 |
class CLDCallback : public CLDClosure {
|
|
919 |
private:
|
|
920 |
bool _class_unload;
|
|
921 |
public:
|
|
922 |
CLDCallback(bool class_unload) : _class_unload(class_unload) {}
|
|
923 |
void do_cld(ClassLoaderData* cld) {
|
|
924 |
assert(cld != NULL, "invariant");
|
|
925 |
if (cld->is_anonymous()) {
|
|
926 |
return;
|
|
927 |
}
|
|
928 |
if (_class_unload) {
|
|
929 |
JfrTypeSet::do_unloaded_class_loader_data(cld);
|
|
930 |
return;
|
|
931 |
}
|
|
932 |
JfrTypeSet::do_class_loader_data(cld);
|
|
933 |
}
|
|
934 |
};
|
|
935 |
|
|
936 |
void JfrTypeSet::do_class_loaders() {
|
|
937 |
CLDCallback cld_cb(_class_unload);
|
|
938 |
if (_class_unload) {
|
|
939 |
ClassLoaderDataGraph::cld_unloading_do(&cld_cb);
|
|
940 |
return;
|
|
941 |
}
|
|
942 |
ClassLoaderDataGraph::cld_do(&cld_cb);
|
|
943 |
}
|
|
944 |
|
|
945 |
static void clear_artifacts(JfrArtifactSet* artifacts,
|
|
946 |
bool class_unload) {
|
|
947 |
assert(artifacts != NULL, "invariant");
|
|
948 |
assert(artifacts->has_klass_entries(), "invariant");
|
|
949 |
|
|
950 |
// untag
|
|
951 |
ClearKlassAndMethods clear(class_unload);
|
|
952 |
artifacts->iterate_klasses(clear);
|
|
953 |
artifacts->clear();
|
|
954 |
}
|
|
955 |
|
|
956 |
/**
|
|
957 |
* Write all "tagged" (in-use) constant artifacts and their dependencies.
|
|
958 |
*/
|
|
959 |
void JfrTypeSet::serialize(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer, bool class_unload) {
|
|
960 |
assert(writer != NULL, "invariant");
|
|
961 |
ResourceMark rm;
|
|
962 |
// initialization begin
|
|
963 |
_class_unload = class_unload;
|
|
964 |
++checkpoint_id;
|
|
965 |
if (_artifacts == NULL) {
|
|
966 |
_artifacts = new JfrArtifactSet(class_unload);
|
|
967 |
_subsystem_callback = NULL;
|
|
968 |
} else {
|
|
969 |
_artifacts->initialize(class_unload);
|
|
970 |
_subsystem_callback = NULL;
|
|
971 |
}
|
|
972 |
assert(_artifacts != NULL, "invariant");
|
|
973 |
assert(!_artifacts->has_klass_entries(), "invariant");
|
|
974 |
assert(_subsystem_callback == NULL, "invariant");
|
|
975 |
// initialization complete
|
|
976 |
|
|
977 |
// write order is important because an individual write step
|
|
978 |
// might tag an artifact to be written in a subsequent step
|
|
979 |
write_klass_constants(writer, leakp_writer);
|
|
980 |
if (_artifacts->has_klass_entries()) {
|
|
981 |
write_package_constants(writer, leakp_writer);
|
|
982 |
write_module_constants(writer, leakp_writer);
|
|
983 |
write_class_loader_constants(writer, leakp_writer);
|
|
984 |
write_method_constants(writer, leakp_writer);
|
|
985 |
write_symbol_constants(writer, leakp_writer);
|
|
986 |
clear_artifacts(_artifacts, class_unload);
|
|
987 |
}
|
|
988 |
}
|