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 <libsigrokcxx/libsigrokcxx.hpp>
  26
  27 #include <getopt.h>
  28
  29 #include <QDebug>
  30 #include <QSettings>
  31
  32 #ifdef ENABLE_SIGNALS
  33 #include "signalhandler.hpp"
  34 #endif
  35
  36 #ifdef ENABLE_STACKTRACE
  37 #include <signal.h>
  38 #include <boost/stacktrace.hpp>
  39 #include <QStandardPaths>
  40 #endif
  41
  42 #include "pv/application.hpp"
  43 #include "pv/devicemanager.hpp"
  44 #include "pv/globalsettings.hpp"
  45 #include "pv/logging.hpp"
  46 #include "pv/mainwindow.hpp"
  47 #include "pv/session.hpp"
  48
  49 #ifdef ANDROID
  50 #include <libsigrokandroidutils/libsigrokandroidutils.h>
  51 #include "android/assetreader.hpp"
  52 #include "android/loghandler.hpp"
  53 #endif
  54
  55 #include "config.h"
  56
  57 #ifdef _WIN32
  58 #include <QtPlugin>
  59 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
  60 Q_IMPORT_PLUGIN(QSvgPlugin)
  61 #endif
  62
  63 using std::exception;
  64 using std::shared_ptr;
  65 using std::string;
  66
  67 #if ENABLE_STACKTRACE
  68 QString stacktrace_filename;
  69
  70 void signal_handler(int signum)
  71 {
  72         ::signal(signum, SIG_DFL);
  73         boost::stacktrace::safe_dump_to(stacktrace_filename.toLocal8Bit().data());
  74         ::raise(SIGABRT);
  75 }
  76 #endif
  77
  78 void usage()
  79 {
  80         fprintf(stdout,
  81                 "Usage:\n"
  82                 "  %s [OPTIONS] [FILE]\n"
  83                 "\n"
  84                 "Help Options:\n"
  85                 "  -h, -?, --help                  Show help option\n"
  86                 "\n"
  87                 "Application Options:\n"
  88                 "  -V, --version                   Show release version\n"
  89                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
  90                 "  -d, --driver                    Specify the device driver to use\n"
  91                 "  -D, --no-scan                   Don't auto-scan for devices, use -d spec only\n"
  92                 "  -i, --input-file                Load input from file\n"
  93                 "  -I, --input-format              Input format\n"
  94                 "  -c, --clean                     Don't restore previous sessions on startup\n"
  95                 "  -s, --log-to-stdout             Don't use logging, output to stdout instead\n"
  96                 "\n", PV_BIN_NAME);
  97 }
  98
  99 int main(int argc, char *argv[])
 100 {
 101         int ret = 0;
 102         shared_ptr<sigrok::Context> context;
 103         string open_file, open_file_format, driver;
 104         bool restore_sessions = true;
 105         bool do_scan = true;
 106         bool do_logging = true;
 107
 108         Application a(argc, argv);
 109
 110 #ifdef ANDROID
 111         srau_init_environment();
 112         pv::AndroidLogHandler::install_callbacks();
 113         pv::AndroidAssetReader asset_reader;
 114 #endif
 115
 116         // Parse arguments
 117         while (true) {
 118                 static const struct option long_options[] = {
 119                         {"help", no_argument, nullptr, 'h'},
 120                         {"version", no_argument, nullptr, 'V'},
 121                         {"loglevel", required_argument, nullptr, 'l'},
 122                         {"driver", required_argument, nullptr, 'd'},
 123                         {"input-file", required_argument, nullptr, 'i'},
 124                         {"input-format", required_argument, nullptr, 'I'},
 125                         {"clean", no_argument, nullptr, 'c'},
 126                         {"log-to-stdout", no_argument, nullptr, 's'},
 127                         {nullptr, 0, nullptr, 0}
 128                 };
 129
 130                 const int c = getopt_long(argc, argv,
 131                         "h?VDcsl:d:i:I:", long_options, nullptr);
 132                 if (c == -1)
 133                         break;
 134
 135                 switch (c) {
 136                 case 'h':
 137                 case '?':
 138                         usage();
 139                         return 0;
 140
 141                 case 'V':
 142                         // Print version info
 143                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
 144                         return 0;
 145
 146                 case 'l':
 147                 {
 148                         const int loglevel = atoi(optarg);
 149                         if (loglevel < 0 || loglevel > 5) {
 150                                 qDebug() << "ERROR: invalid log level spec.";
 151                                 break;
 152                         }
 153                         context->set_log_level(sigrok::LogLevel::get(loglevel));
 154
 155 #ifdef ENABLE_DECODE
 156                         srd_log_loglevel_set(loglevel);
 157 #endif
 158
 159                         if (loglevel >= 5) {
 160                                 const QSettings settings;
 161                                 qDebug() << "Settings:" << settings.fileName()
 162                                         << "format" << settings.format();
 163                         }
 164                         break;
 165                 }
 166
 167                 case 'd':
 168                         driver = optarg;
 169                         break;
 170
 171                 case 'D':
 172                         do_scan = false;
 173                         break;
 174
 175                 case 'i':
 176                         open_file = optarg;
 177                         break;
 178
 179                 case 'I':
 180                         open_file_format = optarg;
 181                         break;
 182
 183                 case 'c':
 184                         restore_sessions = false;
 185                         break;
 186
 187                 case 's':
 188                         do_logging = false;
 189                         break;
 190                 }
 191         }
 192
 193         if (argc - optind > 1) {
 194                 fprintf(stderr, "Only one file can be opened.\n");
 195                 return 1;
 196         }
 197
 198         if (argc - optind == 1)
 199                 open_file = argv[argc - 1];
 200
 201         // Prepare the global settings since logging needs them early on
 202         pv::GlobalSettings settings;
 203         settings.set_defaults_where_needed();
 204
 205         if (do_logging)
 206                 pv::logging.init();
 207
 208         // Initialise libsigrok
 209         context = sigrok::Context::create();
 210         pv::Session::sr_context = context;
 211
 212 #if ENABLE_STACKTRACE
 213         QString temp_path = QStandardPaths::standardLocations(
 214                 QStandardPaths::TempLocation).at(0);
 215         stacktrace_filename = temp_path + "/pv_stacktrace.dmp";
 216         qDebug() << "Stack trace file is" << stacktrace_filename;
 217
 218         ::signal(SIGSEGV, &signal_handler);
 219         ::signal(SIGABRT, &signal_handler);
 220 #endif
 221
 222 #ifdef ANDROID
 223         context->set_resource_reader(&asset_reader);
 224 #endif
 225         do {
 226
 227 #ifdef ENABLE_DECODE
 228                 // Initialise libsigrokdecode
 229                 if (srd_init(nullptr) != SRD_OK) {
 230                         qDebug() << "ERROR: libsigrokdecode init failed.";
 231                         break;
 232                 }
 233
 234                 // Load the protocol decoders
 235                 srd_decoder_load_all();
 236 #endif
 237
 238 #ifndef ENABLE_STACKTRACE
 239                 try {
 240 #endif
 241
 242                 // Create the device manager, initialise the drivers
 243                 pv::DeviceManager device_manager(context, driver, do_scan);
 244
 245                 // Initialise the main window
 246                 pv::MainWindow w(device_manager);
 247                 w.show();
 248
 249                 if (restore_sessions)
 250                         w.restore_sessions();
 251
 252                 if (!open_file.empty())
 253                         w.add_session_with_file(open_file, open_file_format);
 254                 else
 255                         w.add_default_session();
 256
 257 #ifdef ENABLE_SIGNALS
 258                 if (SignalHandler::prepare_signals()) {
 259                         SignalHandler *const handler = new SignalHandler(&w);
 260                         QObject::connect(handler, SIGNAL(int_received()),
 261                                 &w, SLOT(close()));
 262                         QObject::connect(handler, SIGNAL(term_received()),
 263                                 &w, SLOT(close()));
 264                 } else
 265                         qWarning() << "Could not prepare signal handler.";
 266 #endif
 267
 268                 // Run the application
 269                 ret = a.exec();
 270
 271 #ifndef ENABLE_STACKTRACE
 272                 } catch (exception& e) {
 273                         qDebug() << "Exception:" << e.what();
 274                 }
 275 #endif
 276
 277 #ifdef ENABLE_DECODE
 278                 // Destroy libsigrokdecode
 279                 srd_exit();
 280 #endif
 281
 282         } while (false);
 283
 284         return ret;
 285 }