printMetaspaceInfoKlassClosure.cpp

/*
 * Copyright (c) 2018, 2021, Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2018, SAP and/or its affiliates.
 * 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.
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#include "precompiled.hpp"
#include "memory/metaspace/printMetaspaceInfoKlassClosure.hpp"
#include "memory/resourceArea.hpp"
#include "oops/klass.hpp"
#include "oops/reflectionAccessorImplKlassHelper.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/ostream.hpp"

namespace metaspace {

PrintMetaspaceInfoKlassClosure::PrintMetaspaceInfoKlassClosure(outputStream* out, bool do_print)
: _out(out), _cnt(0)
{}

void PrintMetaspaceInfoKlassClosure::do_klass(Klass* k) {
  _cnt++;
  _out->cr_indent();
  _out->print(UINTX_FORMAT_W(4) ": ", _cnt);

  // Print a 's' for shared classes
  _out->put(k->is_shared() ? 's': ' ');

  ResourceMark rm;
  _out->print("  %s", k->external_name());

  // Special treatment for generated core reflection accessor classes: print invocation target.
  if (ReflectionAccessorImplKlassHelper::is_generated_accessor(k)) {
    _out->print(" (invokes: ");
    ReflectionAccessorImplKlassHelper::print_invocation_target(_out, k);
    _out->print(")");
  }
}

} // namespace metaspace