--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp Thu Jun 05 15:57:56 2008 -0700
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2001-2007 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.
+ *
+ */
+
+// The Concurrent Mark GC Thread (could be several in the future).
+// This is copied from the Concurrent Mark Sweep GC Thread
+// Still under construction.
+
+class ConcurrentMark;
+
+class ConcurrentMarkThread: public ConcurrentGCThread {
+ friend class VMStructs;
+
+ double _vtime_start; // Initial virtual time.
+ double _vtime_accum; // Accumulated virtual time.
+
+ double _vtime_mark_accum;
+ double _vtime_count_accum;
+
+ public:
+ virtual void run();
+
+ private:
+ ConcurrentMark* _cm;
+ bool _started;
+ bool _in_progress;
+
+ void sleepBeforeNextCycle();
+
+ static SurrogateLockerThread* _slt;
+
+ public:
+ // Constructor
+ ConcurrentMarkThread(ConcurrentMark* cm);
+
+ static void makeSurrogateLockerThread(TRAPS);
+ static SurrogateLockerThread* slt() { return _slt; }
+
+ // Printing
+ void print();
+
+ // Total virtual time so far.
+ double vtime_accum();
+ // Marking virtual time so far
+ double vtime_mark_accum();
+ // Counting virtual time so far.
+ double vtime_count_accum() { return _vtime_count_accum; }
+
+ ConcurrentMark* cm() { return _cm; }
+
+ void set_started() { _started = true; }
+ void clear_started() { _started = false; }
+ bool started() { return _started; }
+
+ void set_in_progress() { _in_progress = true; }
+ void clear_in_progress() { _in_progress = false; }
+ bool in_progress() { return _in_progress; }
+
+ // Yield for GC
+ void yield();
+
+ // shutdown
+ static void stop();
+};