/*

 * Copyright (c) 2015, 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

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 *

 */

#include "precompiled.hpp"

#include "gc/parallel/jvmFlagConstraintsParallel.hpp"

#include "runtime/globals.hpp"

#include "utilities/globalDefinitions.hpp"

JVMFlag::Error ParallelGCThreadsConstraintFuncParallel(uint value, bool verbose) {

  // Parallel GC passes ParallelGCThreads when creating GrowableArray as 'int' type parameter.

  // So can't exceed with "max_jint"

  if (UseParallelGC && (value > (uint)max_jint)) {

    JVMFlag::printError(verbose,

                        "ParallelGCThreads (" UINT32_FORMAT ") must be "

                        "less than or equal to " UINT32_FORMAT " for Parallel GC\n",

                        value, max_jint);

    return JVMFlag::VIOLATES_CONSTRAINT;

  }

  return JVMFlag::SUCCESS;

}

JVMFlag::Error InitialTenuringThresholdConstraintFuncParallel(uintx value, bool verbose) {

  // InitialTenuringThreshold is only used for ParallelGC.

  if (UseParallelGC && (value > MaxTenuringThreshold)) {

      JVMFlag::printError(verbose,

                          "InitialTenuringThreshold (" UINTX_FORMAT ") must be "

                          "less than or equal to MaxTenuringThreshold (" UINTX_FORMAT ")\n",

                          value, MaxTenuringThreshold);

      return JVMFlag::VIOLATES_CONSTRAINT;

  }

  return JVMFlag::SUCCESS;

}

JVMFlag::Error MaxTenuringThresholdConstraintFuncParallel(uintx value, bool verbose) {

  // As only ParallelGC uses InitialTenuringThreshold,

  // we don't need to compare InitialTenuringThreshold with MaxTenuringThreshold.

  if (UseParallelGC && (value < InitialTenuringThreshold)) {

    JVMFlag::printError(verbose,

                        "MaxTenuringThreshold (" UINTX_FORMAT ") must be "

                        "greater than or equal to InitialTenuringThreshold (" UINTX_FORMAT ")\n",

                        value, InitialTenuringThreshold);

    return JVMFlag::VIOLATES_CONSTRAINT;

  }

  return JVMFlag::SUCCESS;

}