src/hotspot/share/gc/g1/concurrentMarkThread.hpp
changeset 49697 59c4713c5d21
parent 49696 508e9f6632fd
parent 49683 fcff2daa6b1e
child 49698 4c0c018a953f
--- a/src/hotspot/share/gc/g1/concurrentMarkThread.hpp	Thu Apr 12 16:25:29 2018 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,102 +0,0 @@
-/*
- * Copyright (c) 2001, 2017, 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_GC_G1_CONCURRENTMARKTHREAD_HPP
-#define SHARE_VM_GC_G1_CONCURRENTMARKTHREAD_HPP
-
-#include "gc/shared/concurrentGCPhaseManager.hpp"
-#include "gc/shared/concurrentGCThread.hpp"
-
-// The Concurrent Mark GC Thread triggers the parallel G1CMConcurrentMarkingTasks
-// as well as handling various marking cleanup.
-
-class G1ConcurrentMark;
-class G1Policy;
-
-class ConcurrentMarkThread: public ConcurrentGCThread {
-  friend class VMStructs;
-
-  double _vtime_start;  // Initial virtual time.
-  double _vtime_accum;  // Accumulated virtual time.
-  double _vtime_mark_accum;
-
-  G1ConcurrentMark*                _cm;
-
-  enum State {
-    Idle,
-    Started,
-    InProgress
-  };
-
-  volatile State _state;
-
-  // WhiteBox testing support.
-  ConcurrentGCPhaseManager::Stack _phase_manager_stack;
-
-  void sleepBeforeNextCycle();
-  // Delay marking to meet MMU.
-  void delay_to_keep_mmu(G1Policy* g1_policy, bool remark);
-  double mmu_sleep_time(G1Policy* g1_policy, bool remark);
-
-  void run_service();
-  void stop_service();
-
- public:
-  // Constructor
-  ConcurrentMarkThread(G1ConcurrentMark* cm);
-
-  // Total virtual time so far for this thread and concurrent marking tasks.
-  double vtime_accum();
-  // Marking virtual time so far this thread and concurrent marking tasks.
-  double vtime_mark_accum();
-
-  G1ConcurrentMark* cm()   { return _cm; }
-
-  void set_idle()          { assert(_state != Started, "must not be starting a new cycle"); _state = Idle; }
-  bool idle()              { return _state == Idle; }
-  void set_started()       { assert(_state == Idle, "cycle in progress"); _state = Started; }
-  bool started()           { return _state == Started; }
-  void set_in_progress()   { assert(_state == Started, "must be starting a cycle"); _state = InProgress; }
-  bool in_progress()       { return _state == InProgress; }
-
-  // Returns true from the moment a marking cycle is
-  // initiated (during the initial-mark pause when started() is set)
-  // to the moment when the cycle completes (just after the next
-  // marking bitmap has been cleared and in_progress() is
-  // cleared). While during_cycle() is true we will not start another cycle
-  // so that cycles do not overlap. We cannot use just in_progress()
-  // as the CM thread might take some time to wake up before noticing
-  // that started() is set and set in_progress().
-  bool during_cycle()      { return !idle(); }
-
-  // WhiteBox testing support.
-  const char* const* concurrent_phases() const;
-  bool request_concurrent_phase(const char* phase);
-
-  ConcurrentGCPhaseManager::Stack* phase_manager_stack() {
-    return &_phase_manager_stack;
-  }
-};
-
-#endif // SHARE_VM_GC_G1_CONCURRENTMARKTHREAD_HPP