diff src/share/vm/oops/cpCacheKlass.cpp @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children ba764ed4b6f2
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/oops/cpCacheKlass.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,205 @@
+/*
+ * Copyright 1998-2006 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.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_cpCacheKlass.cpp.incl"
+
+
+int constantPoolCacheKlass::oop_size(oop obj) const {
+  assert(obj->is_constantPoolCache(), "must be constantPool");
+  return constantPoolCacheOop(obj)->object_size();
+}
+
+
+constantPoolCacheOop constantPoolCacheKlass::allocate(int length, TRAPS) {
+  // allocate memory
+  int size = constantPoolCacheOopDesc::object_size(length);
+  KlassHandle klass (THREAD, as_klassOop());
+  constantPoolCacheOop cache = (constantPoolCacheOop)
+    CollectedHeap::permanent_array_allocate(klass, size, length, CHECK_NULL);
+  cache->set_constant_pool(NULL);
+  return cache;
+}
+
+
+klassOop constantPoolCacheKlass::create_klass(TRAPS) {
+  constantPoolCacheKlass o;
+  KlassHandle klassklass(THREAD, Universe::arrayKlassKlassObj());
+  arrayKlassHandle k = base_create_array_klass(o.vtbl_value(), header_size(), klassklass, CHECK_NULL);
+  KlassHandle super (THREAD, k->super());
+  complete_create_array_klass(k, super, CHECK_NULL);
+  return k();
+}
+
+
+void constantPoolCacheKlass::oop_follow_contents(oop obj) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+  // Performance tweak: We skip iterating over the klass pointer since we
+  // know that Universe::constantPoolCacheKlassObj never moves.
+  // gc of constant pool cache instance variables
+  MarkSweep::mark_and_push((oop*)cache->constant_pool_addr());
+  // gc of constant pool cache entries
+  int i = cache->length();
+  while (i-- > 0) cache->entry_at(i)->follow_contents();
+}
+
+#ifndef SERIALGC
+void constantPoolCacheKlass::oop_follow_contents(ParCompactionManager* cm,
+                                                 oop obj) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+  // Performance tweak: We skip iterating over the klass pointer since we
+  // know that Universe::constantPoolCacheKlassObj never moves.
+  // gc of constant pool cache instance variables
+  PSParallelCompact::mark_and_push(cm, (oop*)cache->constant_pool_addr());
+  // gc of constant pool cache entries
+  int i = cache->length();
+  while (i-- > 0) cache->entry_at(i)->follow_contents(cm);
+}
+#endif // SERIALGC
+
+
+int constantPoolCacheKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+  // Get size before changing pointers.
+  // Don't call size() or oop_size() since that is a virtual call.
+  int size = cache->object_size();
+  // Performance tweak: We skip iterating over the klass pointer since we
+  // know that Universe::constantPoolCacheKlassObj never moves.
+  // iteration over constant pool cache instance variables
+  blk->do_oop((oop*)cache->constant_pool_addr());
+  // iteration over constant pool cache entries
+  for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate(blk);
+  return size;
+}
+
+
+int constantPoolCacheKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+  // Get size before changing pointers.
+  // Don't call size() or oop_size() since that is a virtual call.
+  int size = cache->object_size();
+  // Performance tweak: We skip iterating over the klass pointer since we
+  // know that Universe::constantPoolCacheKlassObj never moves.
+  // iteration over constant pool cache instance variables
+  oop* addr = (oop*)cache->constant_pool_addr();
+  if (mr.contains(addr)) blk->do_oop(addr);
+  // iteration over constant pool cache entries
+  for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate_m(blk, mr);
+  return size;
+}
+
+
+int constantPoolCacheKlass::oop_adjust_pointers(oop obj) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+  // Get size before changing pointers.
+  // Don't call size() or oop_size() since that is a virtual call.
+  int size = cache->object_size();
+  // Performance tweak: We skip iterating over the klass pointer since we
+  // know that Universe::constantPoolCacheKlassObj never moves.
+  // Iteration over constant pool cache instance variables
+  MarkSweep::adjust_pointer((oop*)cache->constant_pool_addr());
+  // iteration over constant pool cache entries
+  for (int i = 0; i < cache->length(); i++)
+    cache->entry_at(i)->adjust_pointers();
+  return size;
+}
+
+#ifndef SERIALGC
+void constantPoolCacheKlass::oop_copy_contents(PSPromotionManager* pm,
+                                               oop obj) {
+  assert(obj->is_constantPoolCache(), "should be constant pool");
+}
+
+void constantPoolCacheKlass::oop_push_contents(PSPromotionManager* pm,
+                                               oop obj) {
+  assert(obj->is_constantPoolCache(), "should be constant pool");
+}
+
+int
+constantPoolCacheKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+
+  // Iteration over constant pool cache instance variables
+  PSParallelCompact::adjust_pointer((oop*)cache->constant_pool_addr());
+
+  // iteration over constant pool cache entries
+  for (int i = 0; i < cache->length(); ++i) {
+    cache->entry_at(i)->update_pointers();
+  }
+
+  return cache->object_size();
+}
+
+int
+constantPoolCacheKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
+                                            HeapWord* beg_addr,
+                                            HeapWord* end_addr) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+
+  // Iteration over constant pool cache instance variables
+  oop* p;
+  p = (oop*)cache->constant_pool_addr();
+  PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
+
+  // Iteration over constant pool cache entries
+  for (int i = 0; i < cache->length(); ++i) {
+    cache->entry_at(i)->update_pointers(beg_addr, end_addr);
+  }
+  return cache->object_size();
+}
+#endif // SERIALGC
+
+#ifndef PRODUCT
+
+void constantPoolCacheKlass::oop_print_on(oop obj, outputStream* st) {
+  assert(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+  // super print
+  arrayKlass::oop_print_on(obj, st);
+  // print constant pool cache entries
+  for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->print(st, i);
+}
+
+#endif
+
+void constantPoolCacheKlass::oop_verify_on(oop obj, outputStream* st) {
+  guarantee(obj->is_constantPoolCache(), "obj must be constant pool cache");
+  constantPoolCacheOop cache = (constantPoolCacheOop)obj;
+  // super verify
+  arrayKlass::oop_verify_on(obj, st);
+  // print constant pool cache entries
+  for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->verify(st);
+}
+
+
+const char* constantPoolCacheKlass::internal_name() const {
+  return "{constant pool cache}";
+}