136 lines
4.6 KiB
C++
136 lines
4.6 KiB
C++
/*
|
|
* Copyright 2003-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
* CA 95054 USA or visit www.sun.com if you need additional information or
|
|
* have any questions.
|
|
*
|
|
*/
|
|
|
|
class LoaderConstraintEntry;
|
|
|
|
class LoaderConstraintTable : public Hashtable {
|
|
friend class VMStructs;
|
|
private:
|
|
|
|
enum Constants {
|
|
_loader_constraint_size = 107, // number of entries in constraint table
|
|
_nof_buckets = 1009 // number of buckets in hash table
|
|
};
|
|
|
|
LoaderConstraintEntry** find_loader_constraint(symbolHandle name,
|
|
Handle loader);
|
|
|
|
public:
|
|
|
|
LoaderConstraintTable(int nof_buckets);
|
|
|
|
LoaderConstraintEntry* new_entry(unsigned int hash, symbolOop name,
|
|
klassOop klass, int num_loaders,
|
|
int max_loaders);
|
|
|
|
LoaderConstraintEntry* bucket(int i) {
|
|
return (LoaderConstraintEntry*)Hashtable::bucket(i);
|
|
}
|
|
|
|
LoaderConstraintEntry** bucket_addr(int i) {
|
|
return (LoaderConstraintEntry**)Hashtable::bucket_addr(i);
|
|
}
|
|
|
|
// GC support
|
|
void oops_do(OopClosure* f);
|
|
void always_strong_classes_do(OopClosure* blk);
|
|
|
|
// Check class loader constraints
|
|
bool add_entry(symbolHandle name, klassOop klass1, Handle loader1,
|
|
klassOop klass2, Handle loader2);
|
|
|
|
// Note: The main entry point for this module is via SystemDictionary.
|
|
// SystemDictionary::check_signature_loaders(symbolHandle signature,
|
|
// Handle loader1, Handle loader2,
|
|
// bool is_method, TRAPS)
|
|
|
|
klassOop find_constrained_klass(symbolHandle name, Handle loader);
|
|
klassOop find_constrained_elem_klass(symbolHandle name, symbolHandle elem_name,
|
|
Handle loader, TRAPS);
|
|
|
|
|
|
// Class loader constraints
|
|
|
|
void ensure_loader_constraint_capacity(LoaderConstraintEntry *p, int nfree);
|
|
void extend_loader_constraint(LoaderConstraintEntry* p, Handle loader,
|
|
klassOop klass);
|
|
void merge_loader_constraints(LoaderConstraintEntry** pp1,
|
|
LoaderConstraintEntry** pp2, klassOop klass);
|
|
|
|
bool check_or_update(instanceKlassHandle k, Handle loader,
|
|
symbolHandle name);
|
|
|
|
|
|
void purge_loader_constraints(BoolObjectClosure* is_alive);
|
|
|
|
void verify(Dictionary* dictionary);
|
|
#ifndef PRODUCT
|
|
void print();
|
|
#endif
|
|
};
|
|
|
|
class LoaderConstraintEntry : public HashtableEntry {
|
|
friend class VMStructs;
|
|
private:
|
|
symbolOop _name; // class name
|
|
int _num_loaders;
|
|
int _max_loaders;
|
|
oop* _loaders; // initiating loaders
|
|
|
|
public:
|
|
|
|
klassOop klass() { return (klassOop)literal(); }
|
|
klassOop* klass_addr() { return (klassOop*)literal_addr(); }
|
|
void set_klass(klassOop k) { set_literal(k); }
|
|
|
|
LoaderConstraintEntry* next() {
|
|
return (LoaderConstraintEntry*)HashtableEntry::next();
|
|
}
|
|
|
|
LoaderConstraintEntry** next_addr() {
|
|
return (LoaderConstraintEntry**)HashtableEntry::next_addr();
|
|
}
|
|
void set_next(LoaderConstraintEntry* next) {
|
|
HashtableEntry::set_next(next);
|
|
}
|
|
|
|
symbolOop name() { return _name; }
|
|
symbolOop* name_addr() { return &_name; }
|
|
void set_name(symbolOop name) { _name = name; }
|
|
|
|
int num_loaders() { return _num_loaders; }
|
|
void set_num_loaders(int i) { _num_loaders = i; }
|
|
|
|
int max_loaders() { return _max_loaders; }
|
|
void set_max_loaders(int i) { _max_loaders = i; }
|
|
|
|
oop* loaders() { return _loaders; }
|
|
void set_loaders(oop* loaders) { _loaders = loaders; }
|
|
|
|
oop loader(int i) { return _loaders[i]; }
|
|
oop* loader_addr(int i) { return &_loaders[i]; }
|
|
void set_loader(int i, oop p) { _loaders[i] = p; }
|
|
|
|
};
|