/*

 * Copyright (c) 2014, 2018, 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

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 *

 */

#ifndef SHARE_VM_LEAKPROFILER_EMITEVENTOPERATION_HPP

#define SHARE_VM_LEAKPROFILER_EMITEVENTOPERATION_HPP

class BFSClosure;

class EdgeStore;

class EdgeQueue;

class JfrThreadData;

class ObjectSample;

class ObjectSampler;

// Safepoint operation for emitting object sample events

class EmitEventOperation : public VM_Operation {

 private:

  jlong _cutoff_ticks;

  bool _emit_all;

  VMThread* _vm_thread;

  JfrThreadLocal* _vm_thread_local;

  ObjectSampler* _object_sampler;

  void write_event(const ObjectSample* sample, EdgeStore* edge_store);

  int write_events(EdgeStore* edge_store);

 public:

  EmitEventOperation(jlong cutoff_ticks, bool emit_all) :

    _cutoff_ticks(cutoff_ticks),

    _emit_all(emit_all),

    _vm_thread(NULL),

    _vm_thread_local(NULL),

    _object_sampler(NULL) {

  }

  VMOp_Type type() const {

    return VMOp_GC_HeapInspection;

  }

  Mode evaluation_mode() const {

    return _safepoint;

  }

  virtual void doit();

};

#endif // SHARE_VM_LEAKPROFILER_EMITEVENTOPERATION_HPP