1 /*
   2  * Copyright (c) 2011, 2019, 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 #ifndef SHARE_MEMORY_METASPACEENUMS_HPP
  25 #define SHARE_MEMORY_METASPACEENUMS_HPP
  26 
  27 #include "utilities/debug.hpp"
  28 
  29 // MetadataType and MetaspaceType, as well as some convenience functions surrounding them.
  30 namespace metaspace {
  31 
  32 ///////////////////////
  33 
  34 enum MetadataType {
  35   ClassType,
  36   NonClassType,
  37   MetadataTypeCount
  38 };
  39 
  40 inline bool is_class(MetadataType md) { return md == ClassType; }
  41 
  42 inline MetadataType mdtype_from_bool(bool is_class) { return is_class ? ClassType : NonClassType; }
  43 
  44 const char* describe_mdtype(MetadataType md);
  45 
  46 #ifdef ASSERT
  47 inline bool is_valid_mdtype(MetadataType md) {
  48   return (int)md >= 0 && (int)md < MetadataTypeCount;
  49 }
  50 void check_valid_mdtype(MetadataType md) {
  51   assert(is_valid_mdtype(md), "Wrong value for MetadataType: %d", (int) md);
  52 }
  53 #endif
  54 
  55 ///////////////////////
  56 
  57 enum MetaspaceType {
  58   ZeroMetaspaceType = 0,
  59   StandardMetaspaceType = ZeroMetaspaceType,
  60   BootMetaspaceType = StandardMetaspaceType + 1,
  61   UnsafeAnonymousMetaspaceType = BootMetaspaceType + 1,
  62   ReflectionMetaspaceType = UnsafeAnonymousMetaspaceType + 1,
  63   MetaspaceTypeCount
  64 };
  65 
  66 const char* describe_spacetype(MetaspaceType st);
  67 
  68 #ifdef ASSERT
  69 inline bool is_valid_spacetype(MetaspaceType st) {
  70   return (int)st >= 0 && (int)st < MetaspaceTypeCount;
  71 }
  72 void check_valid_spacetype(MetaspaceType st) {
  73   assert(is_valid_spacetype(st), "Wrong value for MetaspaceType: %d", (int) st);
  74 }
  75 #endif
  76 
  77 } // namespace metaspace
  78 
  79 #endif // SHARE_MEMORY_METASPACEENUMS_HPP