1 /*
   2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 #include "precompiled.hpp"
  25 #include "oops/methodCounters.hpp"
  26 #include "runtime/thread.inline.hpp"
  27 
  28 MethodCounters* MethodCounters::allocate(ClassLoaderData* loader_data, TRAPS) {
  29   return new(loader_data, size(), false, MetaspaceObj::MethodCountersType, THREAD) MethodCounters();
  30 }
  31 
  32 void MethodCounters::clear_counters() {
  33   invocation_counter()->reset();
  34   backedge_counter()->reset();
  35   set_interpreter_throwout_count(0);
  36   set_interpreter_invocation_count(0);
  37   set_nmethod_age(INT_MAX);
  38 }
  39 
  40 bool MethodCounters::should_nmethod_age(int age) {
  41   return UseCodeAging && (!MethodCounters::is_nmethod_hot(age) &&
  42                           !MethodCounters::is_nmethod_age_unset(age));
  43 }