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