Fix Bug #1649 (Save dialog does not close automatically)
[pulseview.git] / main.cpp
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, see <http://www.gnu.org/licenses/>.
18  */
19
20 #ifdef ENABLE_DECODE
21 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
22 #endif
23
24 #include <cstdint>
25 #include <fstream>
26 #include <getopt.h>
27 #include <vector>
28
29 #ifdef ENABLE_FLOW
30 #include <gstreamermm.h>
31 #include <libsigrokflow/libsigrokflow.hpp>
32 #endif
33
34 #include <libsigrokcxx/libsigrokcxx.hpp>
35
36 #include <QCheckBox>
37 #include <QDebug>
38 #include <QFile>
39 #include <QFileInfo>
40 #include <QMessageBox>
41 #include <QSettings>
42 #include <QTextStream>
43
44 #include "config.h"
45
46 #ifdef ENABLE_SIGNALS
47 #include "signalhandler.hpp"
48 #endif
49
50 #ifdef ENABLE_STACKTRACE
51 #include <signal.h>
52 #include <boost/stacktrace.hpp>
53 #include <QStandardPaths>
54 #endif
55
56 #include "pv/application.hpp"
57 #include "pv/devicemanager.hpp"
58 #include "pv/globalsettings.hpp"
59 #include "pv/logging.hpp"
60 #include "pv/mainwindow.hpp"
61 #include "pv/session.hpp"
62 #include "pv/util.hpp"
63 #include "pv/data/segment.hpp"
64
65 #ifdef ANDROID
66 #include <libsigrokandroidutils/libsigrokandroidutils.h>
67 #include "android/assetreader.hpp"
68 #include "android/loghandler.hpp"
69 #endif
70
71 #ifdef _WIN32
72 #include <QtPlugin>
73 #ifdef QT_STATIC
74 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
75 Q_IMPORT_PLUGIN(QSvgPlugin)
76 #endif
77 #endif
78
79 using std::exception;
80 using std::ifstream;
81 using std::ofstream;
82 using std::shared_ptr;
83 using std::string;
84
85 #if ENABLE_STACKTRACE
86 QString stacktrace_filename;
87
88 void signal_handler(int signum)
89 {
90         ::signal(signum, SIG_DFL);
91         boost::stacktrace::safe_dump_to(stacktrace_filename.toLocal8Bit().data());
92         ::raise(SIGABRT);
93 }
94
95 void process_stacktrace(QString temp_path)
96 {
97         const QString stacktrace_outfile = temp_path + "/pv_stacktrace.txt";
98
99         ifstream ifs(stacktrace_filename.toLocal8Bit().data());
100         ofstream ofs(stacktrace_outfile.toLocal8Bit().data(),
101                 ofstream::out | ofstream::trunc);
102
103         boost::stacktrace::stacktrace st =
104                 boost::stacktrace::stacktrace::from_dump(ifs);
105         ofs << st;
106
107         ofs.close();
108         ifs.close();
109
110         QFile f(stacktrace_outfile);
111         f.open(QFile::ReadOnly | QFile::Text);
112         QTextStream fs(&f);
113         QString stacktrace = fs.readAll();
114         stacktrace = stacktrace.trimmed().replace('\n', "<br />");
115
116         qDebug() << QObject::tr("Stack trace of previous crash:");
117         qDebug() << "---------------------------------------------------------";
118         // Note: qDebug() prints quotation marks for QString output, so we feed it char*
119         qDebug() << stacktrace.toLocal8Bit().data();
120         qDebug() << "---------------------------------------------------------";
121
122         f.close();
123
124         // Remove stack trace so we don't process it again the next time we run
125         QFile::remove(stacktrace_filename.toLocal8Bit().data());
126
127         // Show notification dialog if permitted
128         pv::GlobalSettings settings;
129         if (settings.value(pv::GlobalSettings::Key_Log_NotifyOfStacktrace).toBool()) {
130                 QCheckBox *cb = new QCheckBox(QObject::tr("Don't show this message again"));
131
132                 QMessageBox msgbox;
133                 msgbox.setText(QObject::tr("When %1 last crashed, it created a stack trace.\n" \
134                         "A human-readable form has been saved to disk and was written to " \
135                         "the log. You may access it from the settings dialog.").arg(PV_TITLE));
136                 msgbox.setIcon(QMessageBox::Icon::Information);
137                 msgbox.addButton(QMessageBox::Ok);
138                 msgbox.setCheckBox(cb);
139
140                 QObject::connect(cb, &QCheckBox::stateChanged, [](int state){
141                         pv::GlobalSettings settings;
142                         settings.setValue(pv::GlobalSettings::Key_Log_NotifyOfStacktrace,
143                                 !state); });
144
145                 msgbox.exec();
146         }
147 }
148 #endif
149
150 void usage()
151 {
152         fprintf(stdout,
153                 "Usage:\n"
154                 "  %s [OPTIONS] [FILE]\n"
155                 "\n"
156                 "Help Options:\n"
157                 "  -h, -?, --help                  Show help option\n"
158                 "\n"
159                 "Application Options:\n"
160                 "  -V, --version                   Show release version\n"
161                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
162                 "  -d, --driver                    Specify the device driver to use\n"
163                 "  -D, --dont-scan                 Don't auto-scan for devices, use -d spec only\n"
164                 "  -i, --input-file                Load input from file\n"
165                 "  -s, --settings                  Load PulseView session setup from file\n"
166                 "  -I, --input-format              Input format\n"
167                 "  -c, --clean                     Don't restore previous sessions on startup\n"
168                 "\n", PV_BIN_NAME);
169 }
170
171 int main(int argc, char *argv[])
172 {
173         int ret = 0;
174         shared_ptr<sigrok::Context> context;
175         string open_file_format, open_setup_file, driver;
176         vector<string> open_files;
177         bool restore_sessions = true;
178         bool do_scan = true;
179         bool show_version = false;
180
181 #ifdef ENABLE_FLOW
182         // Initialise gstreamermm. Must be called before any other GLib stuff.
183         Gst::init();
184
185         // Initialize libsigrokflow. Must be called after Gst::init().
186         Srf::init();
187 #endif
188
189         Application a(argc, argv);
190
191 #ifdef ANDROID
192         srau_init_environment();
193         pv::AndroidLogHandler::install_callbacks();
194         pv::AndroidAssetReader asset_reader;
195 #endif
196
197         // Parse arguments
198         while (true) {
199                 static const struct option long_options[] = {
200                         {"help", no_argument, nullptr, 'h'},
201                         {"version", no_argument, nullptr, 'V'},
202                         {"loglevel", required_argument, nullptr, 'l'},
203                         {"driver", required_argument, nullptr, 'd'},
204                         {"dont-scan", no_argument, nullptr, 'D'},
205                         {"input-file", required_argument, nullptr, 'i'},
206                         {"settings", required_argument, nullptr, 's'},
207                         {"input-format", required_argument, nullptr, 'I'},
208                         {"clean", no_argument, nullptr, 'c'},
209                         {"log-to-stdout", no_argument, nullptr, 's'},
210                         {nullptr, 0, nullptr, 0}
211                 };
212
213                 const int c = getopt_long(argc, argv,
214                         "h?VDcl:d:i:s:I:", long_options, nullptr);
215                 if (c == -1)
216                         break;
217
218                 switch (c) {
219                 case 'h':
220                 case '?':
221                         usage();
222                         return 0;
223
224                 case 'V':
225                         show_version = true;
226                         break;
227
228                 case 'l':
229                 {
230                         const int loglevel = atoi(optarg);
231                         if (loglevel < 0 || loglevel > 5) {
232                                 qDebug() << "ERROR: invalid log level spec.";
233                                 break;
234                         }
235                         context->set_log_level(sigrok::LogLevel::get(loglevel));
236
237 #ifdef ENABLE_DECODE
238                         srd_log_loglevel_set(loglevel);
239 #endif
240
241                         if (loglevel >= 5) {
242                                 const QSettings settings;
243                                 qDebug() << "Settings:" << settings.fileName()
244                                         << "format" << settings.format();
245                         }
246                         break;
247                 }
248
249                 case 'd':
250                         driver = optarg;
251                         break;
252
253                 case 'D':
254                         do_scan = false;
255                         break;
256
257                 case 'i':
258                         open_files.emplace_back(optarg);
259                         break;
260
261                 case 's':
262                         open_setup_file = optarg;
263                         break;
264
265                 case 'I':
266                         open_file_format = optarg;
267                         break;
268
269                 case 'c':
270                         restore_sessions = false;
271                         break;
272                 }
273         }
274         argc -= optind;
275         argv += optind;
276
277         for (int i = 0; i < argc; i++)
278                 open_files.emplace_back(argv[i]);
279
280         qRegisterMetaType<uint64_t>("uint64_t");
281         qRegisterMetaType<pv::util::Timestamp>("util::Timestamp");
282         qRegisterMetaType<SharedPtrToSegment>("SharedPtrToSegment");
283         qRegisterMetaType<shared_ptr<pv::data::SignalBase>>("shared_ptr<SignalBase>");
284
285         // Prepare the global settings since logging needs them early on
286         pv::GlobalSettings settings;
287         settings.add_change_handler(&a);  // Only the application object can't register itself
288         settings.save_internal_defaults();
289         settings.set_defaults_where_needed();
290         settings.apply_language();
291         settings.apply_theme();
292
293         pv::logging.init();
294
295         // Initialise libsigrok
296         context = sigrok::Context::create();
297         pv::Session::sr_context = context;
298
299 #if ENABLE_STACKTRACE
300         QString temp_path = QStandardPaths::standardLocations(
301                 QStandardPaths::TempLocation).at(0);
302         stacktrace_filename = temp_path + "/pv_stacktrace.dmp";
303         qDebug() << "Stack trace file is" << stacktrace_filename;
304
305         ::signal(SIGSEGV, &signal_handler);
306         ::signal(SIGABRT, &signal_handler);
307
308         if (QFileInfo::exists(stacktrace_filename))
309                 process_stacktrace(temp_path);
310 #endif
311
312 #ifdef ANDROID
313         context->set_resource_reader(&asset_reader);
314 #endif
315         do {
316
317 #ifdef ENABLE_DECODE
318                 // Initialise libsigrokdecode
319                 if (srd_init(nullptr) != SRD_OK) {
320                         qDebug() << "ERROR: libsigrokdecode init failed.";
321                         break;
322                 }
323
324                 // Load the protocol decoders
325                 srd_decoder_load_all();
326 #endif
327
328 #ifndef ENABLE_STACKTRACE
329                 try {
330 #endif
331
332                 // Create the device manager, initialise the drivers
333                 pv::DeviceManager device_manager(context, driver, do_scan);
334
335                 a.collect_version_info(context);
336                 if (show_version) {
337                         a.print_version_info();
338                 } else {
339                         // Initialise the main window
340                         pv::MainWindow w(device_manager);
341                         w.show();
342
343                         if (restore_sessions)
344                                 w.restore_sessions();
345
346                         if (open_files.empty())
347                                 w.add_default_session();
348                         else
349                                 for (string& open_file : open_files)
350                                         w.add_session_with_file(open_file, open_file_format, open_setup_file);
351
352 #ifdef ENABLE_SIGNALS
353                         if (SignalHandler::prepare_signals()) {
354                                 SignalHandler *const handler = new SignalHandler(&w);
355                                 QObject::connect(handler, SIGNAL(int_received()), &w, SLOT(close()));
356                                 QObject::connect(handler, SIGNAL(term_received()), &w, SLOT(close()));
357                                 QObject::connect(handler, SIGNAL(usr1_received()), &w, SLOT(on_run_stop_clicked()));
358                         } else
359                                 qWarning() << "Could not prepare signal handler.";
360 #endif
361
362                         // Run the application
363                         ret = a.exec();
364                 }
365
366 #ifndef ENABLE_STACKTRACE
367                 } catch (exception& e) {
368                         qDebug() << "Exception:" << e.what();
369                 }
370 #endif
371
372 #ifdef ENABLE_DECODE
373                 // Destroy libsigrokdecode
374                 srd_exit();
375 #endif
376
377         } while (false);
378
379         return ret;
380 }