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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #ifdef ENABLE_SIGROKDECODE
  22 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
  23 #endif
  24
  25 #include <stdint.h>
  26 #include <libsigrok/libsigrok.h>
  27
  28 #include <getopt.h>
  29
  30 #include <QtGui/QApplication>
  31 #include <QDebug>
  32
  33 #ifdef ENABLE_SIGNALS
  34 #include "signalhandler.h"
  35 #endif
  36
  37 #include "pv/devicemanager.h"
  38 #include "pv/mainwindow.h"
  39
  40 #include "config.h"
  41
  42 void usage()
  43 {
  44         fprintf(stdout,
  45                 "Usage:\n"
  46                 "  %s [OPTION…] [FILE] — %s\n"
  47                 "\n"
  48                 "Help Options:\n"
  49                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
  50                 "  -V, --version                   Show release version\n"
  51                 "  -h, -?, --help                  Show help option\n"
  52                 "\n", PV_BIN_NAME, PV_DESCRIPTION);
  53 }
  54
  55 int main(int argc, char *argv[])
  56 {
  57         int ret = 0;
  58         struct sr_context *sr_ctx = NULL;
  59         const char *open_file = NULL;
  60
  61         QApplication a(argc, argv);
  62
  63         // Set some application metadata
  64         QApplication::setApplicationVersion(PV_VERSION_STRING);
  65         QApplication::setApplicationName("PulseView");
  66         QApplication::setOrganizationDomain("http://www.sigrok.org");
  67
  68         // Parse arguments
  69         while (1) {
  70                 static const struct option long_options[] = {
  71                         {"loglevel", required_argument, 0, 'l'},
  72                         {"version", no_argument, 0, 'V'},
  73                         {"help", no_argument, 0, 'h'},
  74                         {0, 0, 0, 0}
  75                 };
  76
  77                 const int c = getopt_long(argc, argv,
  78                         "l:Vh?", long_options, NULL);
  79                 if (c == -1)
  80                         break;
  81
  82                 switch (c) {
  83                 case 'l':
  84                 {
  85                         const int loglevel = atoi(optarg);
  86                         sr_log_loglevel_set(loglevel);
  87
  88 #ifdef ENABLE_SIGROKDECODE
  89                         srd_log_loglevel_set(loglevel);
  90 #endif
  91
  92                         break;
  93                 }
  94
  95                 case 'V':
  96                         // Print version info
  97                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
  98                         return 0;
  99
 100                 case 'h':
 101                 case '?':
 102                         usage();
 103                         return 0;
 104                 }
 105         }
 106
 107         if (argc - optind > 1) {
 108                 fprintf(stderr, "Only one file can be openened.\n");
 109                 return 1;
 110         } else if (argc - optind == 1)
 111                 open_file = argv[argc - 1];
 112
 113         // Initialise libsigrok
 114         if (sr_init(&sr_ctx) != SR_OK) {
 115                 qDebug() << "ERROR: libsigrok init failed.";
 116                 return 1;
 117         }
 118
 119         do {
 120
 121 #ifdef ENABLE_SIGROKDECODE
 122                 // Initialise libsigrokdecode
 123                 if (srd_init(NULL) != SRD_OK) {
 124                         qDebug() << "ERROR: libsigrokdecode init failed.";
 125                         break;
 126                 }
 127
 128                 // Load the protocol decoders
 129                 srd_decoder_load_all();
 130 #endif
 131
 132                 try {
 133                         // Create the device manager, initialise the drivers
 134                         pv::DeviceManager device_manager(sr_ctx);
 135
 136                         // Initialise the main window
 137                         pv::MainWindow w(device_manager, open_file);
 138                         w.show();
 139
 140 #ifdef ENABLE_SIGNALS
 141                         if(SignalHandler::prepare_signals()) {
 142                                 SignalHandler *const handler =
 143                                         new SignalHandler(&w);
 144                                 QObject::connect(handler,
 145                                         SIGNAL(int_received()),
 146                                         &w, SLOT(close()));
 147                                 QObject::connect(handler,
 148                                         SIGNAL(term_received()),
 149                                         &w, SLOT(close()));
 150                         } else {
 151                                 qWarning() <<
 152                                         "Could not prepare signal handler.";
 153                         }
 154 #endif
 155
 156                         // Run the application
 157                         ret = a.exec();
 158
 159                 } catch(std::exception e) {
 160                         qDebug() << e.what();
 161                 }
 162
 163 #ifdef ENABLE_SIGROKDECODE
 164                 // Destroy libsigrokdecode
 165                 srd_exit();
 166 #endif
 167
 168         } while (0);
 169
 170         // Destroy libsigrok
 171         if (sr_ctx)
 172                 sr_exit(sr_ctx);
 173
 174         return ret;
 175 }