segment.hpp

Go to the documentation of this file.

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef PULSEVIEW_PV_DATA_SEGMENT_HPP
#define PULSEVIEW_PV_DATA_SEGMENT_HPP

#include "pv/util.hpp"

#include <thread>
#include <mutex>
#include <vector>

namespace pv {
namespace data {

class Segment
{
public:
    Segment(uint64_t samplerate, unsigned int unit_size);

    virtual ~Segment();

    uint64_t get_sample_count() const;

    const pv::util::Timestamp& start_time() const;

    double samplerate() const;
    void set_samplerate(double samplerate);

    unsigned int unit_size() const;

    void set_capacity(uint64_t new_capacity);

    uint64_t capacity() const;

protected:
    void append_data(void *data, uint64_t samples);

protected:
    mutable std::recursive_mutex mutex_;
    std::vector<uint8_t> data_;
    uint64_t sample_count_;
    pv::util::Timestamp start_time_;
    double samplerate_;
    uint64_t capacity_;
    unsigned int unit_size_;
};

} // namespace data
} // namespace pv

#endif // PULSEVIEW_PV_DATA_SEGMENT_HPP