handles.inline.hpp revision 0
0N/A/*
0N/A * Copyright 1998-2003 Sun Microsystems, Inc. All Rights Reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
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0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
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0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
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0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
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0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
0N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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0N/A *
0N/A */
0N/A
0N/A// these inline functions are in a separate file to break an include cycle
0N/A// between Thread and Handle
0N/A
0N/Ainline Handle::Handle(oop obj) {
0N/A if (obj == NULL) {
0N/A _handle = NULL;
0N/A } else {
0N/A _handle = Thread::current()->handle_area()->allocate_handle(obj);
0N/A }
0N/A}
0N/A
0N/A
0N/A#ifndef ASSERT
0N/Ainline Handle::Handle(Thread* thread, oop obj) {
0N/A assert(thread == Thread::current(), "sanity check");
0N/A if (obj == NULL) {
0N/A _handle = NULL;
0N/A } else {
0N/A _handle = thread->handle_area()->allocate_handle(obj);
0N/A }
0N/A}
0N/A#endif // ASSERT
0N/A
0N/A
0N/Ainline HandleMark::HandleMark() {
0N/A initialize(Thread::current());
0N/A}
0N/A
0N/A
0N/Ainline void HandleMark::push() {
0N/A // This is intentionally a NOP. pop_and_restore will reset
0N/A // values to the HandleMark further down the stack, typically
0N/A // in JavaCalls::call_helper.
0N/A debug_only(_area->_handle_mark_nesting++);
0N/A}
0N/A
0N/Ainline void HandleMark::pop_and_restore() {
0N/A HandleArea* area = _area; // help compilers with poor alias analysis
0N/A // Delete later chunks
0N/A if( _chunk->next() ) {
0N/A _chunk->next_chop();
0N/A }
0N/A // Roll back arena to saved top markers
0N/A area->_chunk = _chunk;
0N/A area->_hwm = _hwm;
0N/A area->_max = _max;
0N/A NOT_PRODUCT(area->set_size_in_bytes(_size_in_bytes);)
0N/A debug_only(area->_handle_mark_nesting--);
0N/A}