1 /*
   2  * Copyright (c) 2015, 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 
  25 #ifndef SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTSGC_HPP
  26 #define SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTSGC_HPP
  27 
  28 #include "runtime/globals.hpp"
  29 #include "utilities/globalDefinitions.hpp"
  30 
  31 /*
  32  * Here we have GC arguments constraints functions, which are called automatically
  33  * whenever flag's value changes. If the constraint fails the function should return
  34  * an appropriate error value.
  35  */
  36 
  37 Flag::Error YoungPLABSizeConstraintFunc(size_t value, bool verbose);
  38 
  39 Flag::Error MinHeapFreeRatioConstraintFunc(uintx value, bool verbose);
  40 Flag::Error MaxHeapFreeRatioConstraintFunc(uintx value, bool verbose);
  41 
  42 Flag::Error MinMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
  43 Flag::Error MaxMetaspaceFreeRatioConstraintFunc(uintx value, bool verbose);
  44 
  45 Flag::Error InitialTenuringThresholdConstraintFunc(uintx value, bool verbose);
  46 Flag::Error MaxTenuringThresholdConstraintFunc(uintx value, bool verbose);
  47 
  48 #if INCLUDE_ALL_GCS
  49 Flag::Error G1NewSizePercentConstraintFunc(uintx value, bool verbose);
  50 Flag::Error G1MaxNewSizePercentConstraintFunc(uintx value, bool verbose);
  51 #endif // INCLUDE_ALL_GCS
  52 
  53 Flag::Error CMSOldPLABMinConstraintFunc(size_t value, bool verbose);
  54 
  55 Flag::Error CMSPrecleanDenominatorConstraintFunc(uintx value, bool verbose);
  56 Flag::Error CMSPrecleanNumeratorConstraintFunc(uintx value, bool verbose);
  57 
  58 Flag::Error SurvivorAlignmentInBytesConstraintFunc(intx value, bool verbose);
  59 
  60 #endif /* SHARE_VM_RUNTIME_COMMANDLINEFLAGCONSTRAINTSGC_HPP */