/*

 * Copyright (c) 2015, 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 "runtime/arguments.hpp"

#include "runtime/commandLineFlagConstraintsGC.hpp"

#include "runtime/globals.hpp"

#include "utilities/defaultStream.hpp"

#if INCLUDE_ALL_GCS

#include "gc/g1/g1_globals.hpp"

#endif // INCLUDE_ALL_GCS

#ifdef COMPILER1

#include "c1/c1_globals.hpp"

#endif // COMPILER1

#ifdef COMPILER2

#include "opto/c2_globals.hpp"

#endif // COMPILER2

Flag::Error MinHeapFreeRatioConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value > MaxHeapFreeRatio)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or "

                  "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n",

                  *value, MaxHeapFreeRatio);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error MaxHeapFreeRatioConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value < MinHeapFreeRatio)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "MaxHeapFreeRatio (" UINTX_FORMAT ") must be greater than or "

                  "equal to MinHeapFreeRatio (" UINTX_FORMAT ")\n",

                  *value, MinHeapFreeRatio);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error MinMetaspaceFreeRatioConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value > MaxMetaspaceFreeRatio)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "MinMetaspaceFreeRatio (" UINTX_FORMAT ") must be less than or "

                  "equal to MaxMetaspaceFreeRatio (" UINTX_FORMAT ")\n",

                  *value, MaxMetaspaceFreeRatio);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error MaxMetaspaceFreeRatioConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value < MinMetaspaceFreeRatio)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "MaxMetaspaceFreeRatio (" UINTX_FORMAT ") must be greater than or "

                  "equal to MinMetaspaceFreeRatio (" UINTX_FORMAT ")\n",

                  *value, MinMetaspaceFreeRatio);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

// GC workaround for "-XX:+UseConcMarkSweepGC"

// which sets InitialTenuringThreshold to 7 but leaves MaxTenuringThreshold remaining at 6

// and therefore would invalidate the constraint

#define UseConcMarkSweepGCWorkaroundIfNeeded(initial, max) { \

  if ((initial == 7) && (max == 6)) { \

    return Flag::SUCCESS; \

  } \

}

Flag::Error InitialTenuringThresholdConstraintFunc(bool verbose, uintx* value) {

  UseConcMarkSweepGCWorkaroundIfNeeded(*value, MaxTenuringThreshold);

  if ((CommandLineFlags::finishedInitializing()) && (*value > MaxTenuringThreshold)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "InitialTenuringThreshold (" UINTX_FORMAT ") must be less than or "

                  "equal to MaxTenuringThreshold (" UINTX_FORMAT ")\n",

                  *value, MaxTenuringThreshold);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error MaxTenuringThresholdConstraintFunc(bool verbose, uintx* value) {

  UseConcMarkSweepGCWorkaroundIfNeeded(InitialTenuringThreshold, *value);

  if ((CommandLineFlags::finishedInitializing()) && (*value < InitialTenuringThreshold)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "MaxTenuringThreshold (" UINTX_FORMAT ") must be greater than or "

                  "equal to InitialTenuringThreshold (" UINTX_FORMAT ")\n",

                  *value, InitialTenuringThreshold);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

#if INCLUDE_ALL_GCS

Flag::Error G1NewSizePercentConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value > G1MaxNewSizePercent)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "G1NewSizePercent (" UINTX_FORMAT ") must be less than or "

                  "equal to G1MaxNewSizePercent (" UINTX_FORMAT ")\n",

                  *value, G1MaxNewSizePercent);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error G1MaxNewSizePercentConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value < G1NewSizePercent)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "G1MaxNewSizePercent (" UINTX_FORMAT ") must be greater than or "

                  "equal to G1NewSizePercent (" UINTX_FORMAT ")\n",

                  *value, G1NewSizePercent);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

#endif // INCLUDE_ALL_GCS

Flag::Error CMSOldPLABMinConstraintFunc(bool verbose, size_t* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value > CMSOldPLABMax)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "CMSOldPLABMin (" SIZE_FORMAT ") must be less than or "

                  "equal to CMSOldPLABMax (" SIZE_FORMAT ")\n",

                  *value, CMSOldPLABMax);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error CMSPrecleanDenominatorConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value <= CMSPrecleanNumerator)) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "CMSPrecleanDenominator (" UINTX_FORMAT ") must be strickly greater than "

                  "CMSPrecleanNumerator (" UINTX_FORMAT ")\n",

                  *value, CMSPrecleanNumerator);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error CMSPrecleanNumeratorConstraintFunc(bool verbose, uintx* value) {

  if ((CommandLineFlags::finishedInitializing()) && (*value > (CMSPrecleanDenominator - 1))) {

    if (verbose == true) {

      jio_fprintf(defaultStream::error_stream(),

                  "CMSPrecleanNumerator (" UINTX_FORMAT ") must be less than or "

                  "equal to CMSPrecleanDenominator - 1 (" UINTX_FORMAT ")\n", *value,

                  CMSPrecleanDenominator - 1);

    }

    return Flag::VIOLATES_CONSTRAINT;

  } else {

    return Flag::SUCCESS;

  }

}

Flag::Error SurvivorAlignmentInBytesConstraintFunc(bool verbose, intx* value) {

  if (CommandLineFlags::finishedInitializing()) {

    if (*value != 0) {

      if (!is_power_of_2(*value)) {

        if (verbose == true) {

          jio_fprintf(defaultStream::error_stream(),

                    "SurvivorAlignmentInBytes (" INTX_FORMAT ") must be power of 2\n",

                    *value);

        }

        return Flag::VIOLATES_CONSTRAINT;

      }

      if (*value < ObjectAlignmentInBytes) {

        if (verbose == true) {

          jio_fprintf(defaultStream::error_stream(),

                    "SurvivorAlignmentInBytes (" INTX_FORMAT ") must be greater than or "

                    "equal to ObjectAlignmentInBytes (" INTX_FORMAT ") \n",

                    *value, ObjectAlignmentInBytes);

        }

        return Flag::VIOLATES_CONSTRAINT;

      }

    }

  }

  return Flag::SUCCESS;

}