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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/shared_ptr.hpp> | |
25 | #include <boost/thread.hpp> | |
26 | ||
27 | #include <string> | |
28 | #include <utility> | |
29 | #include <vector> | |
30 | ||
31 | #include <QObject> | |
32 | ||
33 | extern "C" { | |
34 | #include <libsigrok/libsigrok.h> | |
35 | } | |
36 | ||
37 | namespace pv { | |
38 | ||
39 | class LogicData; | |
40 | class LogicDataSnapshot; | |
41 | ||
42 | namespace view { | |
43 | class Signal; | |
44 | } | |
45 | ||
46 | class SigSession : public QObject | |
47 | { | |
48 | Q_OBJECT | |
49 | ||
50 | public: | |
51 | enum capture_state { | |
52 | Stopped, | |
53 | Running | |
54 | }; | |
55 | ||
56 | public: | |
57 | SigSession(); | |
58 | ||
59 | ~SigSession(); | |
60 | ||
61 | void load_file(const std::string &name); | |
62 | ||
63 | capture_state get_capture_state() const; | |
64 | ||
65 | void start_capture(struct sr_dev_inst* sdi, uint64_t record_length, | |
66 | uint64_t sample_rate); | |
67 | ||
68 | void stop_capture(); | |
69 | ||
70 | std::vector< boost::shared_ptr<view::Signal> > | |
71 | get_signals(); | |
72 | ||
73 | boost::shared_ptr<LogicData> get_data(); | |
74 | ||
75 | private: | |
76 | void set_capture_state(capture_state state); | |
77 | ||
78 | private: | |
79 | void load_thread_proc(const std::string name); | |
80 | ||
81 | void sample_thread_proc(struct sr_dev_inst *sdi, | |
82 | uint64_t record_length, uint64_t sample_rate); | |
83 | ||
84 | void feed_in_meta_logic(const struct sr_dev_inst *sdi, | |
85 | const sr_datafeed_meta_logic &meta_logic); | |
86 | ||
87 | void data_feed_in(const struct sr_dev_inst *sdi, | |
88 | const struct sr_datafeed_packet *packet); | |
89 | ||
90 | static void data_feed_in_proc(const struct sr_dev_inst *sdi, | |
91 | const struct sr_datafeed_packet *packet); | |
92 | ||
93 | private: | |
94 | mutable boost::mutex _state_mutex; | |
95 | capture_state _capture_state; | |
96 | ||
97 | mutable boost::mutex _signals_mutex; | |
98 | std::vector< boost::shared_ptr<view::Signal> > _signals; | |
99 | ||
100 | mutable boost::mutex _data_mutex; | |
101 | boost::shared_ptr<LogicData> _logic_data; | |
102 | boost::shared_ptr<LogicDataSnapshot> _cur_logic_snapshot; | |
103 | ||
104 | std::auto_ptr<boost::thread> _sampling_thread; | |
105 | ||
106 | signals: | |
107 | void capture_state_changed(int state); | |
108 | ||
109 | void signals_changed(); | |
110 | ||
111 | void data_updated(); | |
112 | ||
113 | private: | |
114 | // TODO: This should not be necessary. Multiple concurrent | |
115 | // sessions should should be supported and it should be | |
116 | // possible to associate a pointer with a sr_session. | |
117 | static SigSession *_session; | |
118 | }; | |
119 | ||
120 | } // namespace pv | |
121 | ||
122 | #endif // PULSEVIEW_PV_SIGSESSION_H |