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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 | #ifdef _WIN32 | |
33 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
34 | #define NOGDI | |
35 | #define NORESOURCE | |
36 | #endif | |
37 | #include <boost/thread/shared_mutex.hpp> | |
38 | ||
39 | #include <QObject> | |
40 | #include <QSettings> | |
41 | #include <QString> | |
42 | ||
43 | #include "util.hpp" | |
44 | #include "views/viewbase.hpp" | |
45 | ||
46 | using std::function; | |
47 | using std::list; | |
48 | using std::map; | |
49 | using std::mutex; | |
50 | using std::recursive_mutex; | |
51 | using std::shared_ptr; | |
52 | using std::string; | |
53 | using std::unordered_set; | |
54 | ||
55 | struct srd_decoder; | |
56 | struct srd_channel; | |
57 | ||
58 | namespace sigrok { | |
59 | class Analog; | |
60 | class Channel; | |
61 | class Device; | |
62 | class InputFormat; | |
63 | class Logic; | |
64 | class Meta; | |
65 | class OutputFormat; | |
66 | class Packet; | |
67 | class Session; | |
68 | } | |
69 | ||
70 | namespace pv { | |
71 | ||
72 | class DeviceManager; | |
73 | ||
74 | namespace data { | |
75 | class Analog; | |
76 | class AnalogSegment; | |
77 | class Logic; | |
78 | class LogicSegment; | |
79 | class SignalBase; | |
80 | class SignalData; | |
81 | } | |
82 | ||
83 | namespace devices { | |
84 | class Device; | |
85 | } | |
86 | ||
87 | namespace toolbars { | |
88 | class MainBar; | |
89 | } | |
90 | ||
91 | namespace views { | |
92 | class ViewBase; | |
93 | } | |
94 | ||
95 | class Session : public QObject | |
96 | { | |
97 | Q_OBJECT | |
98 | ||
99 | public: | |
100 | enum capture_state { | |
101 | Stopped, | |
102 | AwaitingTrigger, | |
103 | Running | |
104 | }; | |
105 | ||
106 | public: | |
107 | Session(DeviceManager &device_manager, QString name); | |
108 | ||
109 | ~Session(); | |
110 | ||
111 | DeviceManager& device_manager(); | |
112 | ||
113 | const DeviceManager& device_manager() const; | |
114 | ||
115 | shared_ptr<sigrok::Session> session() const; | |
116 | ||
117 | shared_ptr<devices::Device> device() const; | |
118 | ||
119 | QString name() const; | |
120 | ||
121 | void set_name(QString name); | |
122 | ||
123 | const list< shared_ptr<views::ViewBase> > views() const; | |
124 | ||
125 | shared_ptr<views::ViewBase> main_view() const; | |
126 | ||
127 | shared_ptr<pv::toolbars::MainBar> main_bar() const; | |
128 | ||
129 | void set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar); | |
130 | ||
131 | /** | |
132 | * Indicates whether the captured data was saved to disk already or not | |
133 | */ | |
134 | bool data_saved() const; | |
135 | ||
136 | void save_settings(QSettings &settings) const; | |
137 | ||
138 | void restore_settings(QSettings &settings); | |
139 | ||
140 | /** | |
141 | * Attempts to set device instance, may fall back to demo if needed | |
142 | */ | |
143 | void select_device(shared_ptr<devices::Device> device); | |
144 | ||
145 | /** | |
146 | * Sets device instance that will be used in the next capture session. | |
147 | */ | |
148 | void set_device(shared_ptr<devices::Device> device); | |
149 | ||
150 | void set_default_device(); | |
151 | ||
152 | void load_init_file(const string &file_name, const string &format); | |
153 | ||
154 | void load_file(QString file_name, | |
155 | shared_ptr<sigrok::InputFormat> format = nullptr, | |
156 | const map<string, Glib::VariantBase> &options = | |
157 | map<string, Glib::VariantBase>()); | |
158 | ||
159 | capture_state get_capture_state() const; | |
160 | ||
161 | void start_capture(function<void (const QString)> error_handler); | |
162 | ||
163 | void stop_capture(); | |
164 | ||
165 | double get_samplerate() const; | |
166 | ||
167 | void register_view(shared_ptr<views::ViewBase> view); | |
168 | ||
169 | void deregister_view(shared_ptr<views::ViewBase> view); | |
170 | ||
171 | bool has_view(shared_ptr<views::ViewBase> view); | |
172 | ||
173 | const unordered_set< shared_ptr<data::SignalBase> > | |
174 | signalbases() const; | |
175 | ||
176 | #ifdef ENABLE_DECODE | |
177 | bool add_decoder(srd_decoder *const dec); | |
178 | ||
179 | void remove_decode_signal(shared_ptr<data::SignalBase> signalbase); | |
180 | #endif | |
181 | ||
182 | private: | |
183 | void set_capture_state(capture_state state); | |
184 | ||
185 | void update_signals(); | |
186 | ||
187 | shared_ptr<data::SignalBase> signalbase_from_channel( | |
188 | shared_ptr<sigrok::Channel> channel) const; | |
189 | ||
190 | private: | |
191 | void sample_thread_proc(function<void (const QString)> error_handler); | |
192 | ||
193 | void free_unused_memory(); | |
194 | ||
195 | void feed_in_header(); | |
196 | ||
197 | void feed_in_meta(shared_ptr<sigrok::Meta> meta); | |
198 | ||
199 | void feed_in_trigger(); | |
200 | ||
201 | void feed_in_frame_begin(); | |
202 | ||
203 | void feed_in_logic(shared_ptr<sigrok::Logic> logic); | |
204 | ||
205 | void feed_in_analog(shared_ptr<sigrok::Analog> analog); | |
206 | ||
207 | void data_feed_in(shared_ptr<sigrok::Device> device, | |
208 | shared_ptr<sigrok::Packet> packet); | |
209 | ||
210 | private: | |
211 | DeviceManager &device_manager_; | |
212 | shared_ptr<devices::Device> device_; | |
213 | QString default_name_, name_; | |
214 | ||
215 | list< shared_ptr<views::ViewBase> > views_; | |
216 | shared_ptr<pv::views::ViewBase> main_view_; | |
217 | ||
218 | shared_ptr<pv::toolbars::MainBar> main_bar_; | |
219 | ||
220 | mutable mutex sampling_mutex_; //!< Protects access to capture_state_. | |
221 | capture_state capture_state_; | |
222 | ||
223 | unordered_set< shared_ptr<data::SignalBase> > signalbases_; | |
224 | unordered_set< shared_ptr<data::SignalData> > all_signal_data_; | |
225 | ||
226 | mutable recursive_mutex data_mutex_; | |
227 | shared_ptr<data::Logic> logic_data_; | |
228 | uint64_t cur_samplerate_; | |
229 | shared_ptr<data::LogicSegment> cur_logic_segment_; | |
230 | map< shared_ptr<sigrok::Channel>, shared_ptr<data::AnalogSegment> > | |
231 | cur_analog_segments_; | |
232 | ||
233 | std::thread sampling_thread_; | |
234 | ||
235 | bool out_of_memory_; | |
236 | bool data_saved_; | |
237 | ||
238 | Q_SIGNALS: | |
239 | void capture_state_changed(int state); | |
240 | void device_changed(); | |
241 | ||
242 | void signals_changed(); | |
243 | ||
244 | void name_changed(); | |
245 | ||
246 | void trigger_event(util::Timestamp location); | |
247 | ||
248 | void frame_began(); | |
249 | ||
250 | void data_received(); | |
251 | ||
252 | void frame_ended(); | |
253 | ||
254 | void add_view(const QString &title, views::ViewType type, | |
255 | Session *session); | |
256 | ||
257 | public Q_SLOTS: | |
258 | void on_data_saved(); | |
259 | }; | |
260 | ||
261 | } // namespace pv | |
262 | ||
263 | #endif // PULSEVIEW_PV_SESSION_HPP |