1 /* 2 * Copyright (c) 2001, 2006, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 # include "incls/_precompiled.incl" 26 # include "incls/_concurrentMarkSweepThread.cpp.incl" 27 28 // ======= Concurrent Mark Sweep Thread ======== 29 30 // The CMS thread is created when Concurrent Mark Sweep is used in the 31 // older of two generations in a generational memory system. 32 33 ConcurrentMarkSweepThread* 34 ConcurrentMarkSweepThread::_cmst = NULL; 35 CMSCollector* ConcurrentMarkSweepThread::_collector = NULL; 36 bool ConcurrentMarkSweepThread::_should_terminate = false; 37 int ConcurrentMarkSweepThread::_CMS_flag = CMS_nil; 38 39 volatile jint ConcurrentMarkSweepThread::_pending_yields = 0; 40 volatile jint ConcurrentMarkSweepThread::_pending_decrements = 0; 41 42 volatile bool ConcurrentMarkSweepThread::_icms_enabled = false; 43 volatile bool ConcurrentMarkSweepThread::_should_run = false; 44 // When icms is enabled, the icms thread is stopped until explicitly 45 // started. 46 volatile bool ConcurrentMarkSweepThread::_should_stop = true; | 1 /* 2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "classfile/systemDictionary.hpp" 27 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp" 28 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp" 29 #include "memory/genCollectedHeap.hpp" 30 #include "oops/instanceRefKlass.hpp" 31 #include "oops/oop.inline.hpp" 32 #include "runtime/init.hpp" 33 #include "runtime/interfaceSupport.hpp" 34 #include "runtime/java.hpp" 35 #include "runtime/javaCalls.hpp" 36 #include "runtime/mutexLocker.hpp" 37 #include "runtime/os.hpp" 38 #include "runtime/vmThread.hpp" 39 40 // ======= Concurrent Mark Sweep Thread ======== 41 42 // The CMS thread is created when Concurrent Mark Sweep is used in the 43 // older of two generations in a generational memory system. 44 45 ConcurrentMarkSweepThread* 46 ConcurrentMarkSweepThread::_cmst = NULL; 47 CMSCollector* ConcurrentMarkSweepThread::_collector = NULL; 48 bool ConcurrentMarkSweepThread::_should_terminate = false; 49 int ConcurrentMarkSweepThread::_CMS_flag = CMS_nil; 50 51 volatile jint ConcurrentMarkSweepThread::_pending_yields = 0; 52 volatile jint ConcurrentMarkSweepThread::_pending_decrements = 0; 53 54 volatile bool ConcurrentMarkSweepThread::_icms_enabled = false; 55 volatile bool ConcurrentMarkSweepThread::_should_run = false; 56 // When icms is enabled, the icms thread is stopped until explicitly 57 // started. 58 volatile bool ConcurrentMarkSweepThread::_should_stop = true; |