hotspot/src/share/vm/runtime/handles.inline.hpp
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Thu, 27 May 2010 19:08:38 -0700
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6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
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/*
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 * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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// these inline functions are in a separate file to break an include cycle
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// between Thread and Handle
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inline Handle::Handle(oop obj) {
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  if (obj == NULL) {
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    _handle = NULL;
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  } else {
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    _handle = Thread::current()->handle_area()->allocate_handle(obj);
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  }
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}
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#ifndef ASSERT
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inline Handle::Handle(Thread* thread, oop obj) {
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  assert(thread == Thread::current(), "sanity check");
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  if (obj == NULL) {
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    _handle = NULL;
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  } else {
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    _handle = thread->handle_area()->allocate_handle(obj);
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  }
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}
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#endif // ASSERT
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inline HandleMark::HandleMark() {
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  initialize(Thread::current());
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}
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inline void HandleMark::push() {
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  // This is intentionally a NOP. pop_and_restore will reset
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  // values to the HandleMark further down the stack, typically
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  // in JavaCalls::call_helper.
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  debug_only(_area->_handle_mark_nesting++);
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}
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inline void HandleMark::pop_and_restore() {
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  HandleArea* area = _area;   // help compilers with poor alias analysis
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  // Delete later chunks
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  if( _chunk->next() ) {
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    _chunk->next_chop();
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  }
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  // Roll back arena to saved top markers
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  area->_chunk = _chunk;
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  area->_hwm = _hwm;
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  area->_max = _max;
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  NOT_PRODUCT(area->set_size_in_bytes(_size_in_bytes);)
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  debug_only(area->_handle_mark_nesting--);
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}