mirror of git://sigrok.org/pulseview
325 lines
7.5 KiB
C++
325 lines
7.5 KiB
C++
/*
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* This file is part of the PulseView project.
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*
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* Copyright (C) 2012-14 Joel Holdsworth <joel@airwebreathe.org.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PULSEVIEW_PV_SESSION_HPP
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#define PULSEVIEW_PV_SESSION_HPP
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#ifdef ENABLE_FLOW
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#include <atomic>
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#include <condition_variable>
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#endif
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#include <deque>
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#include <functional>
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#include <map>
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#include <memory>
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#include <mutex>
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#include <set>
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#include <string>
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#include <thread>
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#include <vector>
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#include <QObject>
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#include <QSettings>
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#include <QString>
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#include <QElapsedTimer>
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#ifdef ENABLE_FLOW
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#include <gstreamermm.h>
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#include <libsigrokflow/libsigrokflow.hpp>
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#endif
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#include "metadata_obj.hpp"
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#include "util.hpp"
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#include "views/viewbase.hpp"
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using std::deque;
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using std::function;
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using std::map;
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using std::mutex;
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using std::recursive_mutex;
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using std::shared_ptr;
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using std::string;
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using std::unordered_set;
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#ifdef ENABLE_FLOW
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using Glib::RefPtr;
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using Gst::AppSink;
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using Gst::Element;
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using Gst::Pipeline;
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#endif
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struct srd_decoder;
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struct srd_channel;
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namespace sigrok {
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class Analog;
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class Channel;
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class Device;
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class InputFormat;
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class Logic;
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class Meta;
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class Option;
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class OutputFormat;
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class Packet;
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class Session;
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} // namespace sigrok
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using sigrok::Option;
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namespace pv {
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class DeviceManager;
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namespace data {
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class Analog;
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class AnalogSegment;
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class DecodeSignal;
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class Logic;
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class LogicSegment;
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class SignalBase;
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class SignalData;
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class SignalGroup;
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}
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namespace devices {
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class Device;
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}
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namespace toolbars {
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class MainBar;
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}
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namespace views {
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class ViewBase;
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}
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using pv::views::ViewType;
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class Session : public QObject
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{
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Q_OBJECT
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public:
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enum capture_state {
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Stopped,
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AwaitingTrigger,
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Running
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};
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static shared_ptr<sigrok::Context> sr_context;
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public:
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Session(DeviceManager &device_manager, QString name);
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~Session();
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DeviceManager& device_manager();
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const DeviceManager& device_manager() const;
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shared_ptr<sigrok::Session> session() const;
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shared_ptr<devices::Device> device() const;
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QString name() const;
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void set_name(QString name);
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QString save_path() const;
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void set_save_path(QString path);
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const vector< shared_ptr<views::ViewBase> > views() const;
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shared_ptr<views::ViewBase> main_view() const;
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shared_ptr<pv::toolbars::MainBar> main_bar() const;
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void set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar);
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/**
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* Indicates whether the captured data was saved to disk already or not
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*/
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bool data_saved() const;
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void save_setup(QSettings &settings) const;
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void save_settings(QSettings &settings) const;
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void restore_setup(QSettings &settings);
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void restore_settings(QSettings &settings);
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/**
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* Attempts to set device instance, may fall back to demo if needed
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*/
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void select_device(shared_ptr<devices::Device> device);
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/**
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* Sets device instance that will be used in the next capture session.
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*/
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void set_device(shared_ptr<devices::Device> device);
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void set_default_device();
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bool using_file_device() const;
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void load_init_file(const string &file_name, const string &format,
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const string &setup_file_name);
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void load_file(QString file_name, QString setup_file_name = QString(),
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shared_ptr<sigrok::InputFormat> format = nullptr,
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const map<string, Glib::VariantBase> &options =
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map<string, Glib::VariantBase>());
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capture_state get_capture_state() const;
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void start_capture(function<void (const QString)> error_handler);
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void stop_capture();
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double get_samplerate() const;
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uint32_t get_segment_count() const;
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vector<util::Timestamp> get_triggers(uint32_t segment_id) const;
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void register_view(shared_ptr<views::ViewBase> view);
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void deregister_view(shared_ptr<views::ViewBase> view);
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bool has_view(shared_ptr<views::ViewBase> view);
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const vector< shared_ptr<data::SignalBase> > signalbases() const;
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void add_generated_signal(shared_ptr<data::SignalBase> signal);
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void remove_generated_signal(shared_ptr<data::SignalBase> signal);
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#ifdef ENABLE_DECODE
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shared_ptr<data::DecodeSignal> add_decode_signal();
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void remove_decode_signal(shared_ptr<data::DecodeSignal> signal);
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#endif
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bool all_segments_complete(uint32_t segment_id) const;
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MetadataObjManager* metadata_obj_manager();
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private:
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void set_capture_state(capture_state state);
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void update_signals();
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shared_ptr<data::SignalBase> signalbase_from_channel(
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shared_ptr<sigrok::Channel> channel) const;
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static map<string, Glib::VariantBase> input_format_options(
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vector<string> user_spec,
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map<string, shared_ptr<Option>> fmt_opts);
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void sample_thread_proc(function<void (const QString)> error_handler);
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void free_unused_memory();
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void signal_new_segment();
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void signal_segment_completed();
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#ifdef ENABLE_FLOW
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bool on_gst_bus_message(const Glib::RefPtr<Gst::Bus>& bus, const Glib::RefPtr<Gst::Message>& message);
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Gst::FlowReturn on_gst_new_sample();
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#endif
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void feed_in_header();
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void feed_in_meta(shared_ptr<sigrok::Meta> meta);
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void feed_in_trigger();
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void feed_in_frame_begin();
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void feed_in_frame_end();
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void feed_in_logic(shared_ptr<sigrok::Logic> logic);
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void feed_in_analog(shared_ptr<sigrok::Analog> analog);
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void data_feed_in(shared_ptr<sigrok::Device> device,
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shared_ptr<sigrok::Packet> packet);
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Q_SIGNALS:
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void capture_state_changed(int state);
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void device_changed();
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void signals_changed();
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void name_changed();
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void trigger_event(int segment_id, util::Timestamp location);
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void new_segment(int new_segment_id);
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void segment_completed(int segment_id);
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void data_received();
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void add_view(ViewType type, Session *session);
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public Q_SLOTS:
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void on_data_saved();
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#ifdef ENABLE_DECODE
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void on_new_decoders_selected(vector<const srd_decoder*> decoders);
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#endif
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private:
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bool shutting_down_;
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DeviceManager &device_manager_;
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shared_ptr<devices::Device> device_;
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QString default_name_, name_, save_path_;
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vector< shared_ptr<views::ViewBase> > views_;
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shared_ptr<pv::views::ViewBase> main_view_;
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shared_ptr<pv::toolbars::MainBar> main_bar_;
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mutable mutex sampling_mutex_; //!< Protects access to capture_state_
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capture_state capture_state_;
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vector< shared_ptr<data::SignalBase> > signalbases_;
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unordered_set< shared_ptr<data::SignalData> > all_signal_data_;
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deque<data::SignalGroup*> signal_groups_;
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/// trigger_list_ contains pairs of <segment_id, timestamp> values
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vector< std::pair<uint32_t, util::Timestamp> > trigger_list_;
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mutable recursive_mutex data_mutex_;
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shared_ptr<data::Logic> logic_data_;
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uint64_t cur_samplerate_;
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shared_ptr<data::LogicSegment> cur_logic_segment_;
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map< shared_ptr<sigrok::Channel>, shared_ptr<data::AnalogSegment> >
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cur_analog_segments_;
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int32_t highest_segment_id_;
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std::thread sampling_thread_;
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bool out_of_memory_;
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bool data_saved_;
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bool frame_began_;
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QElapsedTimer acq_time_;
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MetadataObjManager metadata_obj_manager_;
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#ifdef ENABLE_FLOW
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RefPtr<Pipeline> pipeline_;
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RefPtr<Element> source_;
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RefPtr<AppSink> sink_;
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mutable mutex pipeline_done_mutex_;
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mutable condition_variable pipeline_done_cond_;
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atomic<bool> pipeline_done_interrupt_;
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#endif
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};
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} // namespace pv
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#endif // PULSEVIEW_PV_SESSION_HPP
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