/*

 * Copyright (c) 1998, 2016, 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 "oops/compiledICHolder.hpp"

#include "oops/klass.hpp"

#include "oops/method.hpp"

#include "runtime/atomic.hpp"

volatile int CompiledICHolder::_live_count;

volatile int CompiledICHolder::_live_not_claimed_count;

CompiledICHolder::CompiledICHolder(Metadata* metadata, Klass* klass)

  : _holder_metadata(metadata), _holder_klass(klass) {

#ifdef ASSERT

  Atomic::inc(&_live_count);

  Atomic::inc(&_live_not_claimed_count);

#endif // ASSERT

}

#ifdef ASSERT

CompiledICHolder::~CompiledICHolder() {

  assert(_live_count > 0, "underflow");

  Atomic::dec(&_live_count);

}

#endif // ASSERT

bool CompiledICHolder::is_loader_alive(BoolObjectClosure* is_alive) {

  if (_holder_metadata->is_method()) {

    if (!((Method*)_holder_metadata)->method_holder()->is_loader_alive(is_alive)) {

      return false;

    }

  } else if (_holder_metadata->is_klass()) {

    if (!((Klass*)_holder_metadata)->is_loader_alive(is_alive)) {

      return false;

    }

  }

  if (!_holder_klass->is_loader_alive(is_alive)) {

    return false;

  }

  return true;

}

// Printing

void CompiledICHolder::print_on(outputStream* st) const {

  st->print("%s", internal_name());

  st->print(" - metadata: "); holder_metadata()->print_value_on(st); st->cr();

  st->print(" - klass:    "); holder_klass()->print_value_on(st); st->cr();

}

void CompiledICHolder::print_value_on(outputStream* st) const {

  st->print("%s", internal_name());

}

// Verification

void CompiledICHolder::verify_on(outputStream* st) {

  guarantee(holder_metadata()->is_method() || holder_metadata()->is_klass(), "should be method or klass");

  guarantee(holder_klass()->is_klass(),   "should be klass");

}

#ifdef ASSERT

void CompiledICHolder::claim() {

  Atomic::dec(&_live_not_claimed_count);

}

#endif // ASSERT