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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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#ifndef SHARE_CLASSFILE_LOADERCONSTRAINTS_HPP
#define SHARE_CLASSFILE_LOADERCONSTRAINTS_HPP

#include "oops/oopsHierarchy.hpp"
#include "runtime/handles.hpp"

class ClassLoaderData;
class LoaderConstraint;
class Symbol;

class LoaderConstraintTable : public AllStatic {

private:
  static LoaderConstraint* find_loader_constraint(Symbol* name, ClassLoaderData* loader);

  static void add_loader_constraint(Symbol* name, InstanceKlass* klass,
                                    ClassLoaderData* loader1, ClassLoaderData* loader2);

  static void merge_loader_constraints(Symbol* class_name, LoaderConstraint* pp1,
                                       LoaderConstraint* pp2, InstanceKlass* klass);
public:
  static void initialize();
  // Check class loader constraints
  static bool add_entry(Symbol* name, InstanceKlass* klass1, ClassLoaderData* loader1,
                        InstanceKlass* klass2, ClassLoaderData* loader2);

  // Note:  The main entry point for this module is via SystemDictionary.
  // SystemDictionary::check_signature_loaders(Symbol* signature,
  //                                           Klass* klass_being_linked,
  //                                           Handle loader1, Handle loader2,
  //                                           bool is_method)

  static InstanceKlass* find_constrained_klass(Symbol* name, ClassLoaderData* loader);

  // Class loader constraints
  static bool check_or_update(InstanceKlass* k, ClassLoaderData* loader, Symbol* name);

  static void purge_loader_constraints();

  static void print_table_statistics(outputStream* st);
  static void verify();
  static void print();
  static void print_on(outputStream* st);
};

#endif // SHARE_CLASSFILE_LOADERCONSTRAINTS_HPP