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