duke@435: /*
duke@435:  * Copyright 1998-2006 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: #include "incls/_precompiled.incl"
duke@435: #include "incls/_cpCacheKlass.cpp.incl"
duke@435: 
duke@435: 
duke@435: int constantPoolCacheKlass::oop_size(oop obj) const {
duke@435:   assert(obj->is_constantPoolCache(), "must be constantPool");
duke@435:   return constantPoolCacheOop(obj)->object_size();
duke@435: }
duke@435: 
duke@435: 
duke@435: constantPoolCacheOop constantPoolCacheKlass::allocate(int length, TRAPS) {
duke@435:   // allocate memory
duke@435:   int size = constantPoolCacheOopDesc::object_size(length);
duke@435:   KlassHandle klass (THREAD, as_klassOop());
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)
coleenp@548:     CollectedHeap::permanent_obj_allocate(klass, size, CHECK_NULL);
coleenp@548:   cache->set_length(length);
duke@435:   cache->set_constant_pool(NULL);
duke@435:   return cache;
duke@435: }
duke@435: 
duke@435: klassOop constantPoolCacheKlass::create_klass(TRAPS) {
duke@435:   constantPoolCacheKlass o;
coleenp@548:   KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
coleenp@548:   KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL);
coleenp@548:   // Make sure size calculation is right
coleenp@548:   assert(k()->size() == align_object_size(header_size()), "wrong size for object");
coleenp@548:   java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror
duke@435:   return k();
duke@435: }
duke@435: 
duke@435: 
duke@435: void constantPoolCacheKlass::oop_follow_contents(oop obj) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435:   // Performance tweak: We skip iterating over the klass pointer since we
duke@435:   // know that Universe::constantPoolCacheKlassObj never moves.
duke@435:   // gc of constant pool cache instance variables
duke@435:   MarkSweep::mark_and_push((oop*)cache->constant_pool_addr());
duke@435:   // gc of constant pool cache entries
duke@435:   int i = cache->length();
duke@435:   while (i-- > 0) cache->entry_at(i)->follow_contents();
duke@435: }
duke@435: 
duke@435: #ifndef SERIALGC
duke@435: void constantPoolCacheKlass::oop_follow_contents(ParCompactionManager* cm,
duke@435:                                                  oop obj) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435:   // Performance tweak: We skip iterating over the klass pointer since we
duke@435:   // know that Universe::constantPoolCacheKlassObj never moves.
duke@435:   // gc of constant pool cache instance variables
duke@435:   PSParallelCompact::mark_and_push(cm, (oop*)cache->constant_pool_addr());
duke@435:   // gc of constant pool cache entries
duke@435:   int i = cache->length();
duke@435:   while (i-- > 0) cache->entry_at(i)->follow_contents(cm);
duke@435: }
duke@435: #endif // SERIALGC
duke@435: 
duke@435: 
duke@435: int constantPoolCacheKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435:   // Get size before changing pointers.
duke@435:   // Don't call size() or oop_size() since that is a virtual call.
duke@435:   int size = cache->object_size();
duke@435:   // Performance tweak: We skip iterating over the klass pointer since we
duke@435:   // know that Universe::constantPoolCacheKlassObj never moves.
duke@435:   // iteration over constant pool cache instance variables
duke@435:   blk->do_oop((oop*)cache->constant_pool_addr());
duke@435:   // iteration over constant pool cache entries
duke@435:   for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate(blk);
duke@435:   return size;
duke@435: }
duke@435: 
duke@435: 
duke@435: int constantPoolCacheKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435:   // Get size before changing pointers.
duke@435:   // Don't call size() or oop_size() since that is a virtual call.
duke@435:   int size = cache->object_size();
duke@435:   // Performance tweak: We skip iterating over the klass pointer since we
duke@435:   // know that Universe::constantPoolCacheKlassObj never moves.
duke@435:   // iteration over constant pool cache instance variables
duke@435:   oop* addr = (oop*)cache->constant_pool_addr();
duke@435:   if (mr.contains(addr)) blk->do_oop(addr);
duke@435:   // iteration over constant pool cache entries
duke@435:   for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate_m(blk, mr);
duke@435:   return size;
duke@435: }
duke@435: 
duke@435: 
duke@435: int constantPoolCacheKlass::oop_adjust_pointers(oop obj) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435:   // Get size before changing pointers.
duke@435:   // Don't call size() or oop_size() since that is a virtual call.
duke@435:   int size = cache->object_size();
duke@435:   // Performance tweak: We skip iterating over the klass pointer since we
duke@435:   // know that Universe::constantPoolCacheKlassObj never moves.
duke@435:   // Iteration over constant pool cache instance variables
duke@435:   MarkSweep::adjust_pointer((oop*)cache->constant_pool_addr());
duke@435:   // iteration over constant pool cache entries
duke@435:   for (int i = 0; i < cache->length(); i++)
duke@435:     cache->entry_at(i)->adjust_pointers();
duke@435:   return size;
duke@435: }
duke@435: 
duke@435: #ifndef SERIALGC
duke@435: void constantPoolCacheKlass::oop_copy_contents(PSPromotionManager* pm,
duke@435:                                                oop obj) {
duke@435:   assert(obj->is_constantPoolCache(), "should be constant pool");
duke@435: }
duke@435: 
duke@435: void constantPoolCacheKlass::oop_push_contents(PSPromotionManager* pm,
duke@435:                                                oop obj) {
duke@435:   assert(obj->is_constantPoolCache(), "should be constant pool");
duke@435: }
duke@435: 
duke@435: int
duke@435: constantPoolCacheKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435: 
duke@435:   // Iteration over constant pool cache instance variables
duke@435:   PSParallelCompact::adjust_pointer((oop*)cache->constant_pool_addr());
duke@435: 
duke@435:   // iteration over constant pool cache entries
duke@435:   for (int i = 0; i < cache->length(); ++i) {
duke@435:     cache->entry_at(i)->update_pointers();
duke@435:   }
duke@435: 
duke@435:   return cache->object_size();
duke@435: }
duke@435: 
duke@435: int
duke@435: constantPoolCacheKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
duke@435:                                             HeapWord* beg_addr,
duke@435:                                             HeapWord* end_addr) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435: 
duke@435:   // Iteration over constant pool cache instance variables
duke@435:   oop* p;
duke@435:   p = (oop*)cache->constant_pool_addr();
duke@435:   PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
duke@435: 
duke@435:   // Iteration over constant pool cache entries
duke@435:   for (int i = 0; i < cache->length(); ++i) {
duke@435:     cache->entry_at(i)->update_pointers(beg_addr, end_addr);
duke@435:   }
duke@435:   return cache->object_size();
duke@435: }
duke@435: #endif // SERIALGC
duke@435: 
duke@435: #ifndef PRODUCT
duke@435: 
duke@435: void constantPoolCacheKlass::oop_print_on(oop obj, outputStream* st) {
duke@435:   assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435:   // super print
coleenp@548:   Klass::oop_print_on(obj, st);
duke@435:   // print constant pool cache entries
duke@435:   for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->print(st, i);
duke@435: }
duke@435: 
duke@435: #endif
duke@435: 
duke@435: void constantPoolCacheKlass::oop_verify_on(oop obj, outputStream* st) {
duke@435:   guarantee(obj->is_constantPoolCache(), "obj must be constant pool cache");
duke@435:   constantPoolCacheOop cache = (constantPoolCacheOop)obj;
duke@435:   // super verify
coleenp@548:   Klass::oop_verify_on(obj, st);
duke@435:   // print constant pool cache entries
duke@435:   for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->verify(st);
duke@435: }
duke@435: 
duke@435: 
duke@435: const char* constantPoolCacheKlass::internal_name() const {
duke@435:   return "{constant pool cache}";
duke@435: }