1 /*
   2  * Copyright (c) 2012, 2019, 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 #ifndef SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNKSTATE_HPP
  26 #define SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNKSTATE_HPP
  27 
  28 #include "jni.h"
  29 #include "jfr/utilities/jfrAllocation.hpp"
  30 #include "jfr/utilities/jfrTypes.hpp"
  31 
  32 class JfrChunkState : public JfrCHeapObj {
  33   friend class JfrChunkWriter;
  34  private:
  35   char* _path;
  36   jlong _start_ticks;
  37   jlong _start_nanos;
  38   jlong _previous_start_ticks;
  39   jlong _previous_start_nanos;
  40   jlong _previous_checkpoint_offset;
  41 
  42   void update_start_ticks();
  43   void update_start_nanos();
  44   void save_current_and_update_start_ticks();
  45   void save_current_and_update_start_nanos();
  46 
  47   JfrChunkState();
  48   ~JfrChunkState();
  49   void reset();
  50   jlong previous_checkpoint_offset() const;
  51   void set_previous_checkpoint_offset(jlong offset);
  52   jlong previous_start_ticks() const;
  53   jlong previous_start_nanos() const;
  54   jlong last_chunk_duration() const;
  55   void update_time_to_now();
  56   void set_path(const char* path);
  57   const char* path() const;
  58 };
  59 
  60 #endif // SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNKSTATE_HPP