2 * This file is part of the PulseView project.
4 * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net>
5 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #ifndef PULSEVIEW_PV_DATA_SEGMENT_HPP
22 #define PULSEVIEW_PV_DATA_SEGMENT_HPP
24 #include "pv/util.hpp"
35 using std::recursive_mutex;
38 namespace SegmentTest {
39 struct SmallSize8Single;
40 struct MediumSize8Single;
41 struct MaxSize8Single;
42 struct MediumSize24Single;
43 struct MediumSize32Single;
44 struct MaxSize32Single;
45 struct MediumSize32Multi;
46 struct MaxSize32Multi;
47 struct MaxSize32MultiAtOnce;
48 struct MaxSize32MultiIterated;
49 } // namespace SegmentTest
55 uint64_t sample_index, chunk_num, chunk_offs;
57 } SegmentDataIterator;
59 class Segment : public QObject
64 static const uint64_t MaxChunkSize;
67 Segment(uint32_t segment_id, uint64_t samplerate, unsigned int unit_size);
71 uint64_t get_sample_count() const;
73 const pv::util::Timestamp& start_time() const;
75 double samplerate() const;
76 void set_samplerate(double samplerate);
78 unsigned int unit_size() const;
80 uint32_t segment_id() const;
83 bool is_complete() const;
85 void free_unused_memory();
91 void append_single_sample(void *data);
92 void append_samples(void *data, uint64_t samples);
93 const uint8_t* get_raw_sample(uint64_t sample_num) const;
94 void get_raw_samples(uint64_t start, uint64_t count, uint8_t *dest) const;
96 SegmentDataIterator* begin_sample_iteration(uint64_t start);
97 void continue_sample_iteration(SegmentDataIterator* it, uint64_t increase);
98 void end_sample_iteration(SegmentDataIterator* it);
99 uint8_t* get_iterator_value(SegmentDataIterator* it);
100 uint64_t get_iterator_valid_length(SegmentDataIterator* it);
102 uint32_t segment_id_;
103 mutable recursive_mutex mutex_;
104 deque<uint8_t*> data_chunks_;
105 uint8_t* current_chunk_;
106 uint64_t used_samples_, unused_samples_;
107 atomic<uint64_t> sample_count_;
108 pv::util::Timestamp start_time_;
110 uint64_t chunk_size_;
111 unsigned int unit_size_;
113 bool mem_optimization_requested_;
116 friend struct SegmentTest::SmallSize8Single;
117 friend struct SegmentTest::MediumSize8Single;
118 friend struct SegmentTest::MaxSize8Single;
119 friend struct SegmentTest::MediumSize24Single;
120 friend struct SegmentTest::MediumSize32Single;
121 friend struct SegmentTest::MaxSize32Single;
122 friend struct SegmentTest::MediumSize32Multi;
123 friend struct SegmentTest::MaxSize32Multi;
124 friend struct SegmentTest::MaxSize32MultiAtOnce;
125 friend struct SegmentTest::MaxSize32MultiIterated;
131 typedef std::shared_ptr<pv::data::Segment> SharedPtrToSegment;
133 Q_DECLARE_METATYPE(SharedPtrToSegment);
135 #endif // PULSEVIEW_PV_DATA_SEGMENT_HPP