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1 /* |
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2 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 #ifndef SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNK_HPP |
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26 #define SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNK_HPP |
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27 |
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28 #include "jfr/utilities/jfrAllocation.hpp" |
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29 |
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30 const u1 COMPLETE = 0; |
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31 const u1 GUARD = 0xff; |
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32 const u1 PAD = 0; |
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33 |
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34 class JfrChunk : public JfrCHeapObj { |
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35 friend class JfrChunkWriter; |
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36 friend class JfrChunkHeadWriter; |
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37 private: |
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38 char* _path; |
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39 int64_t _start_ticks; |
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40 int64_t _previous_start_ticks; |
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41 int64_t _start_nanos; |
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42 int64_t _previous_start_nanos; |
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43 int64_t _last_update_nanos; |
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44 int64_t _last_checkpoint_offset; |
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45 int64_t _last_metadata_offset; |
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46 mutable u1 _generation; |
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47 |
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48 JfrChunk(); |
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49 ~JfrChunk(); |
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50 void reset(); |
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51 |
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52 const char* magic() const; |
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53 u2 major_version() const; |
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54 u2 minor_version() const; |
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55 int64_t cpu_frequency() const; |
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56 u2 capabilities() const; |
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57 |
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58 void update_start_ticks(); |
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59 void update_start_nanos(); |
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60 void save_current_and_update_start_ticks(); |
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61 void save_current_and_update_start_nanos(); |
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62 |
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63 int64_t last_checkpoint_offset() const; |
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64 void set_last_checkpoint_offset(int64_t offset); |
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65 |
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66 int64_t last_metadata_offset() const; |
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67 void set_last_metadata_offset(int64_t offset); |
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68 bool has_metadata() const; |
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69 |
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70 int64_t start_ticks() const; |
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71 int64_t start_nanos() const; |
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72 |
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73 int64_t previous_start_ticks() const; |
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74 int64_t previous_start_nanos() const; |
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75 int64_t last_chunk_duration() const; |
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76 |
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77 void set_time_stamp(); |
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78 void update_current_nanos(); |
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79 |
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80 void set_path(const char* path); |
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81 const char* path() const; |
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82 |
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83 bool is_started() const; |
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84 bool is_finished() const; |
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85 |
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86 int64_t duration() const; |
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87 u1 generation() const; |
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88 u1 next_generation() const; |
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89 }; |
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90 |
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91 #endif // SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNK_HPP |