src/share/vm/jfr/recorder/repository/jfrChunkState.hpp

Mon, 12 Aug 2019 18:30:40 +0300

author
apetushkov
date
Mon, 12 Aug 2019 18:30:40 +0300
changeset 9858
b985cbb00e68
child 9947
db357034b763
permissions
-rw-r--r--

8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

     1 /*
     2  * Copyright (c) 2012, 2018, 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  */
    25 #ifndef SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNKSTATE_HPP
    26 #define SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNKSTATE_HPP
    28 #include "jni.h"
    29 #include "jfr/utilities/jfrAllocation.hpp"
    30 #include "jfr/utilities/jfrTypes.hpp"
    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;
    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();
    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 };
    60 #endif // SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNKSTATE_HPP

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