74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
/*
|
|
* Copyright 1998-2003 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.
|
|
*
|
|
*/
|
|
|
|
// these inline functions are in a separate file to break an include cycle
|
|
// between Thread and Handle
|
|
|
|
inline Handle::Handle(oop obj) {
|
|
if (obj == NULL) {
|
|
_handle = NULL;
|
|
} else {
|
|
_handle = Thread::current()->handle_area()->allocate_handle(obj);
|
|
}
|
|
}
|
|
|
|
|
|
#ifndef ASSERT
|
|
inline Handle::Handle(Thread* thread, oop obj) {
|
|
assert(thread == Thread::current(), "sanity check");
|
|
if (obj == NULL) {
|
|
_handle = NULL;
|
|
} else {
|
|
_handle = thread->handle_area()->allocate_handle(obj);
|
|
}
|
|
}
|
|
#endif // ASSERT
|
|
|
|
|
|
inline HandleMark::HandleMark() {
|
|
initialize(Thread::current());
|
|
}
|
|
|
|
|
|
inline void HandleMark::push() {
|
|
// This is intentionally a NOP. pop_and_restore will reset
|
|
// values to the HandleMark further down the stack, typically
|
|
// in JavaCalls::call_helper.
|
|
debug_only(_area->_handle_mark_nesting++);
|
|
}
|
|
|
|
inline void HandleMark::pop_and_restore() {
|
|
HandleArea* area = _area; // help compilers with poor alias analysis
|
|
// Delete later chunks
|
|
if( _chunk->next() ) {
|
|
_chunk->next_chop();
|
|
}
|
|
// Roll back arena to saved top markers
|
|
area->_chunk = _chunk;
|
|
area->_hwm = _hwm;
|
|
area->_max = _max;
|
|
NOT_PRODUCT(area->set_size_in_bytes(_size_in_bytes);)
|
|
debug_only(area->_handle_mark_nesting--);
|
|
}
|