/*

 * Copyright (c) 2013, 2018, Red Hat, Inc. All rights reserved.

 *

 * 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.

 *

 */

#include "gc/shared/gcVMOperations.hpp"

// VM_operations for the Shenandoah Collector.

//

// VM_ShenandoahOperation

//   - VM_ShenandoahInitMark: initiate concurrent marking

//   - VM_ShenandoahReferenceOperation:

//       - VM_ShenandoahFinalMarkStartEvac: finish up concurrent marking, and start evacuation

//       - VM_ShenandoahFinalEvac: finish concurrent evacuation

//       - VM_ShenandoahInitUpdateRefs: initiate update references

//       - VM_ShenandoahFinalUpdateRefs: finish up update references

//       - VM_ShenandoahFullGC: do full GC

//       - VM_ShenandoahInitTraversalGC: init traversal GC

//       - VM_ShenandoahFinalTraversalGC: finish traversal GC

class VM_ShenandoahOperation : public VM_Operation {

protected:

  uint         _gc_id;

public:

  VM_ShenandoahOperation() : _gc_id(GCId::current()) {};

};

class VM_ShenandoahReferenceOperation : public VM_ShenandoahOperation {

public:

  VM_ShenandoahReferenceOperation() : VM_ShenandoahOperation() {};

  bool doit_prologue();

  void doit_epilogue();

};

class VM_ShenandoahInitMark: public VM_ShenandoahOperation {

public:

  VM_ShenandoahInitMark() : VM_ShenandoahOperation() {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahInitMark; }

  const char* name()             const { return "Shenandoah Init Marking"; }

  virtual void doit();

};

class VM_ShenandoahFinalMarkStartEvac: public VM_ShenandoahReferenceOperation {

public:

  VM_ShenandoahFinalMarkStartEvac() : VM_ShenandoahReferenceOperation() {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahFinalMarkStartEvac; }

  const char* name()             const { return "Shenandoah Final Mark and Start Evacuation"; }

  virtual  void doit();

};

class VM_ShenandoahFinalEvac: public VM_ShenandoahOperation {

public:

  VM_ShenandoahFinalEvac() : VM_ShenandoahOperation() {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahFinalEvac; }

  const char* name()             const { return "Shenandoah Final Evacuation"; }

  virtual  void doit();

};

class VM_ShenandoahDegeneratedGC: public VM_ShenandoahReferenceOperation {

private:

  // Really the ShenandoahHeap::ShenandoahDegenerationPoint, but casted to int here

  // in order to avoid dependency on ShenandoahHeap

  int _point;

public:

  VM_ShenandoahDegeneratedGC(int point) : VM_ShenandoahReferenceOperation(), _point(point) {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahDegeneratedGC; }

  const char* name()             const { return "Shenandoah Degenerated GC"; }

  virtual  void doit();

};

class VM_ShenandoahFullGC : public VM_ShenandoahReferenceOperation {

private:

  GCCause::Cause _gc_cause;

public:

  VM_ShenandoahFullGC(GCCause::Cause gc_cause) : VM_ShenandoahReferenceOperation(), _gc_cause(gc_cause) {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahFullGC; }

  const char* name()             const { return "Shenandoah Full GC"; }

  virtual void doit();

};

class VM_ShenandoahInitTraversalGC: public VM_ShenandoahOperation {

public:

  VM_ShenandoahInitTraversalGC() : VM_ShenandoahOperation() {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahInitTraversalGC; }

  const char* name()             const { return "Shenandoah Init Traversal Collection"; }

  virtual void doit();

};

class VM_ShenandoahFinalTraversalGC: public VM_ShenandoahReferenceOperation {

public:

  VM_ShenandoahFinalTraversalGC() : VM_ShenandoahReferenceOperation() {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahFinalTraversalGC; }

  const char* name()             const { return "Shenandoah Final Traversal Collection"; }

  virtual void doit();

};

class VM_ShenandoahInitUpdateRefs: public VM_ShenandoahOperation {

public:

  VM_ShenandoahInitUpdateRefs() : VM_ShenandoahOperation() {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahInitUpdateRefs; }

  const char* name()             const { return "Shenandoah Init Update References"; }

  virtual void doit();

};

class VM_ShenandoahFinalUpdateRefs: public VM_ShenandoahOperation {

public:

  VM_ShenandoahFinalUpdateRefs() : VM_ShenandoahOperation() {};

  VM_Operation::VMOp_Type type() const { return VMOp_ShenandoahFinalUpdateRefs; }

  const char* name()             const { return "Shenandoah Final Update References"; }

  virtual void doit();

};