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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012-14 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef PULSEVIEW_PV_SESSION_HPP | |
21 | #define PULSEVIEW_PV_SESSION_HPP | |
22 | ||
23 | #include <map> | |
24 | #include <memory> | |
25 | #include <mutex> | |
26 | #include <set> | |
27 | #include <string> | |
28 | #include <thread> | |
29 | #include <unordered_set> | |
30 | #include <vector> | |
31 | ||
32 | #include <QObject> | |
33 | #include <QSettings> | |
34 | #include <QString> | |
35 | ||
36 | #include "util.hpp" | |
37 | #include "views/viewbase.hpp" | |
38 | ||
39 | using std::function; | |
40 | using std::list; | |
41 | using std::map; | |
42 | using std::mutex; | |
43 | using std::recursive_mutex; | |
44 | using std::shared_ptr; | |
45 | using std::string; | |
46 | using std::unordered_set; | |
47 | ||
48 | struct srd_decoder; | |
49 | struct srd_channel; | |
50 | ||
51 | namespace sigrok { | |
52 | class Analog; | |
53 | class Channel; | |
54 | class Device; | |
55 | class InputFormat; | |
56 | class Logic; | |
57 | class Meta; | |
58 | class Option; | |
59 | class OutputFormat; | |
60 | class Packet; | |
61 | class Session; | |
62 | } // namespace sigrok | |
63 | ||
64 | using sigrok::Option; | |
65 | ||
66 | namespace pv { | |
67 | ||
68 | class DeviceManager; | |
69 | ||
70 | namespace data { | |
71 | class Analog; | |
72 | class AnalogSegment; | |
73 | class Logic; | |
74 | class LogicSegment; | |
75 | class SignalBase; | |
76 | class SignalData; | |
77 | } | |
78 | ||
79 | namespace devices { | |
80 | class Device; | |
81 | } | |
82 | ||
83 | namespace toolbars { | |
84 | class MainBar; | |
85 | } | |
86 | ||
87 | namespace views { | |
88 | class ViewBase; | |
89 | } | |
90 | ||
91 | class Session : public QObject | |
92 | { | |
93 | Q_OBJECT | |
94 | ||
95 | public: | |
96 | enum capture_state { | |
97 | Stopped, | |
98 | AwaitingTrigger, | |
99 | Running | |
100 | }; | |
101 | ||
102 | public: | |
103 | Session(DeviceManager &device_manager, QString name); | |
104 | ||
105 | ~Session(); | |
106 | ||
107 | DeviceManager& device_manager(); | |
108 | ||
109 | const DeviceManager& device_manager() const; | |
110 | ||
111 | shared_ptr<sigrok::Session> session() const; | |
112 | ||
113 | shared_ptr<devices::Device> device() const; | |
114 | ||
115 | QString name() const; | |
116 | ||
117 | void set_name(QString name); | |
118 | ||
119 | const list< shared_ptr<views::ViewBase> > views() const; | |
120 | ||
121 | shared_ptr<views::ViewBase> main_view() const; | |
122 | ||
123 | shared_ptr<pv::toolbars::MainBar> main_bar() const; | |
124 | ||
125 | void set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar); | |
126 | ||
127 | /** | |
128 | * Indicates whether the captured data was saved to disk already or not | |
129 | */ | |
130 | bool data_saved() const; | |
131 | ||
132 | void save_settings(QSettings &settings) const; | |
133 | ||
134 | void restore_settings(QSettings &settings); | |
135 | ||
136 | /** | |
137 | * Attempts to set device instance, may fall back to demo if needed | |
138 | */ | |
139 | void select_device(shared_ptr<devices::Device> device); | |
140 | ||
141 | /** | |
142 | * Sets device instance that will be used in the next capture session. | |
143 | */ | |
144 | void set_device(shared_ptr<devices::Device> device); | |
145 | ||
146 | void set_default_device(); | |
147 | ||
148 | void load_init_file(const string &file_name, const string &format); | |
149 | ||
150 | void load_file(QString file_name, | |
151 | shared_ptr<sigrok::InputFormat> format = nullptr, | |
152 | const map<string, Glib::VariantBase> &options = | |
153 | map<string, Glib::VariantBase>()); | |
154 | ||
155 | capture_state get_capture_state() const; | |
156 | ||
157 | void start_capture(function<void (const QString)> error_handler); | |
158 | ||
159 | void stop_capture(); | |
160 | ||
161 | double get_samplerate() const; | |
162 | ||
163 | void register_view(shared_ptr<views::ViewBase> view); | |
164 | ||
165 | void deregister_view(shared_ptr<views::ViewBase> view); | |
166 | ||
167 | bool has_view(shared_ptr<views::ViewBase> view); | |
168 | ||
169 | const unordered_set< shared_ptr<data::SignalBase> > signalbases() const; | |
170 | ||
171 | #ifdef ENABLE_DECODE | |
172 | bool add_decoder(srd_decoder *const dec); | |
173 | ||
174 | void remove_decode_signal(shared_ptr<data::SignalBase> signalbase); | |
175 | #endif | |
176 | ||
177 | private: | |
178 | void set_capture_state(capture_state state); | |
179 | ||
180 | void update_signals(); | |
181 | ||
182 | shared_ptr<data::SignalBase> signalbase_from_channel( | |
183 | shared_ptr<sigrok::Channel> channel) const; | |
184 | ||
185 | static map<string, Glib::VariantBase> input_format_options( | |
186 | vector<string> user_spec, | |
187 | map<string, shared_ptr<Option>> fmt_opts); | |
188 | ||
189 | private: | |
190 | void sample_thread_proc(function<void (const QString)> error_handler); | |
191 | ||
192 | void free_unused_memory(); | |
193 | ||
194 | void feed_in_header(); | |
195 | ||
196 | void feed_in_meta(shared_ptr<sigrok::Meta> meta); | |
197 | ||
198 | void feed_in_trigger(); | |
199 | ||
200 | void feed_in_frame_begin(); | |
201 | ||
202 | void feed_in_logic(shared_ptr<sigrok::Logic> logic); | |
203 | ||
204 | void feed_in_analog(shared_ptr<sigrok::Analog> analog); | |
205 | ||
206 | void data_feed_in(shared_ptr<sigrok::Device> device, | |
207 | shared_ptr<sigrok::Packet> packet); | |
208 | ||
209 | private: | |
210 | DeviceManager &device_manager_; | |
211 | shared_ptr<devices::Device> device_; | |
212 | QString default_name_, name_; | |
213 | ||
214 | list< shared_ptr<views::ViewBase> > views_; | |
215 | shared_ptr<pv::views::ViewBase> main_view_; | |
216 | ||
217 | shared_ptr<pv::toolbars::MainBar> main_bar_; | |
218 | ||
219 | mutable mutex sampling_mutex_; //!< Protects access to capture_state_. | |
220 | capture_state capture_state_; | |
221 | ||
222 | unordered_set< shared_ptr<data::SignalBase> > signalbases_; | |
223 | unordered_set< shared_ptr<data::SignalData> > all_signal_data_; | |
224 | ||
225 | mutable recursive_mutex data_mutex_; | |
226 | shared_ptr<data::Logic> logic_data_; | |
227 | uint64_t cur_samplerate_; | |
228 | shared_ptr<data::LogicSegment> cur_logic_segment_; | |
229 | map< shared_ptr<sigrok::Channel>, shared_ptr<data::AnalogSegment> > | |
230 | cur_analog_segments_; | |
231 | ||
232 | std::thread sampling_thread_; | |
233 | ||
234 | bool out_of_memory_; | |
235 | bool data_saved_; | |
236 | ||
237 | Q_SIGNALS: | |
238 | void capture_state_changed(int state); | |
239 | void device_changed(); | |
240 | ||
241 | void signals_changed(); | |
242 | ||
243 | void name_changed(); | |
244 | ||
245 | void trigger_event(util::Timestamp location); | |
246 | ||
247 | void frame_began(); | |
248 | ||
249 | void data_received(); | |
250 | ||
251 | void frame_ended(); | |
252 | ||
253 | void add_view(const QString &title, views::ViewType type, | |
254 | Session *session); | |
255 | ||
256 | public Q_SLOTS: | |
257 | void on_data_saved(); | |
258 | }; | |
259 | ||
260 | } // namespace pv | |
261 | ||
262 | #endif // PULSEVIEW_PV_SESSION_HPP |