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