Mercurial > hg > graal-jvmci-8
view src/share/vm/runtime/handles.inline.hpp @ 4837:eff609af17d7
7127706: G1: re-enable survivors during the initial-mark pause
Summary: Re-enable survivors during the initial-mark pause. Afterwards, the concurrent marking threads have to scan them and mark everything reachable from them. The next GC will have to wait for the survivors to be scanned.
Reviewed-by: brutisso, johnc
author | tonyp |
---|---|
date | Wed, 25 Jan 2012 12:58:23 -0500 |
parents | f08d439fab8c |
children | d2a62e0f25eb |
line wrap: on
line source
/* * Copyright (c) 1998, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_RUNTIME_HANDLES_INLINE_HPP #define SHARE_VM_RUNTIME_HANDLES_INLINE_HPP #include "runtime/handles.hpp" #ifdef TARGET_OS_FAMILY_linux # include "thread_linux.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_solaris # include "thread_solaris.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_windows # include "thread_windows.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_bsd # include "thread_bsd.inline.hpp" #endif // 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--); } #endif // SHARE_VM_RUNTIME_HANDLES_INLINE_HPP