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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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef PULSEVIEW_PV_SESSION_HPP | |
22 | #define PULSEVIEW_PV_SESSION_HPP | |
23 | ||
24 | #include <map> | |
25 | #include <memory> | |
26 | #include <mutex> | |
27 | #include <set> | |
28 | #include <string> | |
29 | #include <thread> | |
30 | #include <unordered_set> | |
31 | #include <vector> | |
32 | ||
33 | #ifdef _WIN32 | |
34 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
35 | #define NOGDI | |
36 | #define NORESOURCE | |
37 | #endif | |
38 | #include <boost/thread/shared_mutex.hpp> | |
39 | ||
40 | #include <QObject> | |
41 | #include <QSettings> | |
42 | #include <QString> | |
43 | ||
44 | #include "util.hpp" | |
45 | #include "views/viewbase.hpp" | |
46 | ||
47 | struct srd_decoder; | |
48 | struct srd_channel; | |
49 | ||
50 | namespace sigrok { | |
51 | class Analog; | |
52 | class Channel; | |
53 | class Device; | |
54 | class Logic; | |
55 | class Meta; | |
56 | class Packet; | |
57 | class Session; | |
58 | } | |
59 | ||
60 | namespace pv { | |
61 | ||
62 | class DeviceManager; | |
63 | ||
64 | namespace data { | |
65 | class Analog; | |
66 | class AnalogSegment; | |
67 | class Logic; | |
68 | class LogicSegment; | |
69 | class SignalBase; | |
70 | class SignalData; | |
71 | } | |
72 | ||
73 | namespace devices { | |
74 | class Device; | |
75 | } | |
76 | ||
77 | namespace toolbars { | |
78 | class MainBar; | |
79 | } | |
80 | ||
81 | namespace views { | |
82 | class ViewBase; | |
83 | } | |
84 | ||
85 | class Session : public QObject | |
86 | { | |
87 | Q_OBJECT | |
88 | ||
89 | public: | |
90 | enum capture_state { | |
91 | Stopped, | |
92 | AwaitingTrigger, | |
93 | Running | |
94 | }; | |
95 | ||
96 | public: | |
97 | Session(DeviceManager &device_manager, QString name); | |
98 | ||
99 | ~Session(); | |
100 | ||
101 | DeviceManager& device_manager(); | |
102 | ||
103 | const DeviceManager& device_manager() const; | |
104 | ||
105 | std::shared_ptr<sigrok::Session> session() const; | |
106 | ||
107 | std::shared_ptr<devices::Device> device() const; | |
108 | ||
109 | QString name() const; | |
110 | ||
111 | void set_name(QString name); | |
112 | ||
113 | const std::list< std::shared_ptr<views::ViewBase> > views() const; | |
114 | ||
115 | std::shared_ptr<views::ViewBase> main_view() const; | |
116 | ||
117 | void set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar); | |
118 | ||
119 | std::shared_ptr<pv::toolbars::MainBar> main_bar() const; | |
120 | ||
121 | void save_settings(QSettings &settings) const; | |
122 | ||
123 | void restore_settings(QSettings &settings); | |
124 | ||
125 | /** | |
126 | * Sets device instance that will be used in the next capture session. | |
127 | */ | |
128 | void set_device(std::shared_ptr<devices::Device> device); | |
129 | ||
130 | void set_default_device(); | |
131 | ||
132 | capture_state get_capture_state() const; | |
133 | ||
134 | void start_capture(std::function<void (const QString)> error_handler); | |
135 | ||
136 | void stop_capture(); | |
137 | ||
138 | double get_samplerate() const; | |
139 | ||
140 | void register_view(std::shared_ptr<views::ViewBase> view); | |
141 | ||
142 | void deregister_view(std::shared_ptr<views::ViewBase> view); | |
143 | ||
144 | bool has_view(std::shared_ptr<views::ViewBase> view); | |
145 | ||
146 | const std::unordered_set< std::shared_ptr<data::SignalBase> > | |
147 | signalbases() const; | |
148 | ||
149 | #ifdef ENABLE_DECODE | |
150 | bool add_decoder(srd_decoder *const dec); | |
151 | ||
152 | void remove_decode_signal(std::shared_ptr<data::SignalBase> signalbase); | |
153 | #endif | |
154 | ||
155 | private: | |
156 | void set_capture_state(capture_state state); | |
157 | ||
158 | void update_signals(); | |
159 | ||
160 | std::shared_ptr<data::SignalBase> signalbase_from_channel( | |
161 | std::shared_ptr<sigrok::Channel> channel) const; | |
162 | ||
163 | private: | |
164 | void sample_thread_proc(std::function<void (const QString)> error_handler); | |
165 | ||
166 | void feed_in_header(); | |
167 | ||
168 | void feed_in_meta(std::shared_ptr<sigrok::Meta> meta); | |
169 | ||
170 | void feed_in_trigger(); | |
171 | ||
172 | void feed_in_frame_begin(); | |
173 | ||
174 | void feed_in_logic(std::shared_ptr<sigrok::Logic> logic); | |
175 | ||
176 | void feed_in_analog(std::shared_ptr<sigrok::Analog> analog); | |
177 | ||
178 | void data_feed_in(std::shared_ptr<sigrok::Device> device, | |
179 | std::shared_ptr<sigrok::Packet> packet); | |
180 | ||
181 | private: | |
182 | DeviceManager &device_manager_; | |
183 | std::shared_ptr<devices::Device> device_; | |
184 | QString default_name_, name_; | |
185 | ||
186 | std::list< std::shared_ptr<views::ViewBase> > views_; | |
187 | std::shared_ptr<pv::views::ViewBase> main_view_; | |
188 | ||
189 | std::shared_ptr<pv::toolbars::MainBar> main_bar_; | |
190 | ||
191 | mutable std::mutex sampling_mutex_; //!< Protects access to capture_state_. | |
192 | capture_state capture_state_; | |
193 | ||
194 | std::unordered_set< std::shared_ptr<data::SignalBase> > signalbases_; | |
195 | std::unordered_set< std::shared_ptr<data::SignalData> > all_signal_data_; | |
196 | ||
197 | mutable std::recursive_mutex data_mutex_; | |
198 | std::shared_ptr<data::Logic> logic_data_; | |
199 | uint64_t cur_samplerate_; | |
200 | std::shared_ptr<data::LogicSegment> cur_logic_segment_; | |
201 | std::map< std::shared_ptr<sigrok::Channel>, std::shared_ptr<data::AnalogSegment> > | |
202 | cur_analog_segments_; | |
203 | ||
204 | std::thread sampling_thread_; | |
205 | ||
206 | bool out_of_memory_; | |
207 | ||
208 | Q_SIGNALS: | |
209 | void capture_state_changed(int state); | |
210 | void device_changed(); | |
211 | ||
212 | void signals_changed(); | |
213 | ||
214 | void name_changed(); | |
215 | ||
216 | void trigger_event(util::Timestamp location); | |
217 | ||
218 | void frame_began(); | |
219 | ||
220 | void data_received(); | |
221 | ||
222 | void frame_ended(); | |
223 | ||
224 | void add_view(const QString &title, views::ViewType type, | |
225 | Session *session); | |
226 | }; | |
227 | ||
228 | } // namespace pv | |
229 | ||
230 | #endif // PULSEVIEW_PV_SESSION_HPP |