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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 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_SIGSESSION_H | |
22 | #define PULSEVIEW_PV_SIGSESSION_H | |
23 | ||
24 | #include <boost/function.hpp> | |
25 | #include <boost/shared_ptr.hpp> | |
26 | #include <boost/thread.hpp> | |
27 | ||
28 | #include <string> | |
29 | #include <utility> | |
30 | #include <vector> | |
31 | ||
32 | #include <QObject> | |
33 | #include <QString> | |
34 | ||
35 | #include <libsigrok/libsigrok.h> | |
36 | ||
37 | namespace pv { | |
38 | ||
39 | namespace data { | |
40 | class Analog; | |
41 | class AnalogSnapshot; | |
42 | class Logic; | |
43 | class LogicSnapshot; | |
44 | } | |
45 | ||
46 | namespace view { | |
47 | class Signal; | |
48 | } | |
49 | ||
50 | class SigSession : public QObject | |
51 | { | |
52 | Q_OBJECT | |
53 | ||
54 | public: | |
55 | enum capture_state { | |
56 | Stopped, | |
57 | Running | |
58 | }; | |
59 | ||
60 | public: | |
61 | SigSession(); | |
62 | ||
63 | ~SigSession(); | |
64 | ||
65 | /** | |
66 | * Sets device instance that will be used in the next capture session. | |
67 | */ | |
68 | void set_device(struct sr_dev_inst *sdi); | |
69 | ||
70 | void load_file(const std::string &name, | |
71 | boost::function<void (const QString)> error_handler); | |
72 | ||
73 | capture_state get_capture_state() const; | |
74 | ||
75 | void start_capture(uint64_t record_length, | |
76 | boost::function<void (const QString)> error_handler); | |
77 | ||
78 | void stop_capture(); | |
79 | ||
80 | std::vector< boost::shared_ptr<view::Signal> > | |
81 | get_signals(); | |
82 | ||
83 | boost::shared_ptr<data::Logic> get_data(); | |
84 | ||
85 | private: | |
86 | void set_capture_state(capture_state state); | |
87 | ||
88 | private: | |
89 | void load_thread_proc(const std::string name, | |
90 | boost::function<void (const QString)> error_handler); | |
91 | ||
92 | void sample_thread_proc(struct sr_dev_inst *sdi, | |
93 | uint64_t record_length, | |
94 | boost::function<void (const QString)> error_handler); | |
95 | ||
96 | void feed_in_header(const sr_dev_inst *sdi); | |
97 | ||
98 | void feed_in_meta(const sr_dev_inst *sdi, | |
99 | const sr_datafeed_meta &meta); | |
100 | ||
101 | void feed_in_logic(const sr_datafeed_logic &logic); | |
102 | ||
103 | void feed_in_analog(const sr_datafeed_analog &analog); | |
104 | ||
105 | void data_feed_in(const struct sr_dev_inst *sdi, | |
106 | const struct sr_datafeed_packet *packet); | |
107 | ||
108 | static void data_feed_in_proc(const struct sr_dev_inst *sdi, | |
109 | const struct sr_datafeed_packet *packet, void *cb_data); | |
110 | ||
111 | private: | |
112 | ||
113 | /** | |
114 | * The device instance that will be used in the next capture session. | |
115 | */ | |
116 | struct sr_dev_inst *_sdi; | |
117 | ||
118 | mutable boost::mutex _sampling_mutex; | |
119 | capture_state _capture_state; | |
120 | ||
121 | mutable boost::mutex _signals_mutex; | |
122 | std::vector< boost::shared_ptr<view::Signal> > _signals; | |
123 | ||
124 | mutable boost::mutex _data_mutex; | |
125 | boost::shared_ptr<data::Logic> _logic_data; | |
126 | boost::shared_ptr<data::LogicSnapshot> _cur_logic_snapshot; | |
127 | boost::shared_ptr<data::Analog> _analog_data; | |
128 | boost::shared_ptr<data::AnalogSnapshot> _cur_analog_snapshot; | |
129 | ||
130 | std::auto_ptr<boost::thread> _sampling_thread; | |
131 | ||
132 | signals: | |
133 | void capture_state_changed(int state); | |
134 | ||
135 | void signals_changed(); | |
136 | ||
137 | void data_updated(); | |
138 | ||
139 | private: | |
140 | // TODO: This should not be necessary. Multiple concurrent | |
141 | // sessions should should be supported and it should be | |
142 | // possible to associate a pointer with a sr_session. | |
143 | static SigSession *_session; | |
144 | }; | |
145 | ||
146 | } // namespace pv | |
147 | ||
148 | #endif // PULSEVIEW_PV_SIGSESSION_H |