wmmisc/src/dockapp_main.c

   1 /*
   2  *  wmmisc - WindowMaker Dockapp for monitoring misc. information.
   3  *  Copyright (C) 2003-2006 Jesse S. (luxorfalls@sbcglobal.net)
   4  *
   5  *  wmmisc is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  wmmisc is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with wmmisc; if not, write to the Free Software
  17  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  */
  20
  21 #include <getopt.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <bits/getopt_core.h>
  26 #include <signal.h>
  27
  28 #ifdef USE_MTRACE
  29 #include <mcheck.h>
  30 #endif /* USE_MTRACE */
  31
  32 #include <libdockapp/wmgeneral.h>
  33
  34 #include "wmmisc-master.xpm"
  35 #include "dockapp_main.h"
  36 #include "dockapp_draw.h"
  37
  38 void
  39 dockapp_show_help( const char* wm_name )
  40 {
  41    printf( "Usage: %s [OPTION]...\n", wm_name );
  42    printf( "This is a simple WindowMaker 'DockApp' that will monitor the following:\n" );
  43    printf( "Number of users logged in, total processes, total number of processes running,\n" );
  44    printf( "the system's fork count and load average.\n\n" );
  45    printf( "      -h                 display this help and exit\n" );
  46    printf( "      -v                 output version information and exit\n" );
  47    printf( "      -display DISPLAY   set display\n\n");
  48    printf( "Report bugs to <" PACKAGE_BUGREPORT ">.\n" );
  49 }
  50
  51 void
  52 dockapp_show_version( void )
  53 {
  54    printf( "%s\n", PACKAGE_STRING);
  55    printf( "Written by %s <%s>\n\n", DOCKAPP_AUTHOR, DOCKAPP_AUTHOR_EMAIL );
  56    printf( "Copyright (C) 2003-2006 %s\n", DOCKAPP_AUTHOR );
  57    printf( "This is free software; see the source for copying conditions.  There is NO\n" );
  58    printf( "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n" );
  59 }
  60
  61 void
  62 dockapp_exit( int signal_received )
  63 {
  64 #ifdef USE_MTRACE
  65    muntrace();
  66 #endif /* USE_MTRACE */
  67
  68 #ifdef DEBUG
  69    fprintf( stderr,
  70             "%s: Exiting cleanly with signal %d\n",
  71             DOCKAPP_NAME,
  72             signal_received );
  73 #endif /* DEBUG */
  74
  75    exit( 0 );
  76 }
  77
  78 void
  79 dockapp_crash( int signal_received )
  80 {
  81    fprintf( stderr,
  82             "%s: got signal %d -- bailing out!\n",
  83             DOCKAPP_NAME,
  84             signal_received );
  85    fprintf( stderr,
  86             "It appears that %s has encountered an error.\n",
  87             DOCKAPP_NAME );
  88    fprintf( stderr,
  89             "If this continues to happen, please run '%s core' from a debugger,\n",
  90             DOCKAPP_NAME );
  91    fprintf( stderr,
  92             "such as gdb, and report the output to <%s>.\n",
  93             PACKAGE_BUGREPORT );
  94
  95    abort();
  96 }
  97
  98 int
  99 main( int argc, char** argv )
 100 {
 101    int opt = 0;
 102    const struct option longopts[] = {
 103         {"display", required_argument, NULL, 0},
 104         {0, 0, 0, 0}
 105    };
 106
 107 #ifdef USE_MTRACE
 108    mtrace();
 109 #endif /* USE_MTRACE */
 110
 111    signal( SIGINT, dockapp_exit );
 112    signal( SIGSEGV, dockapp_crash );
 113
 114    opt = getopt_long_only( argc, argv, "hv", longopts, NULL);
 115
 116    while ( -1 != opt )
 117    {
 118       switch ( opt )
 119       {
 120          case 'h':
 121          {
 122             dockapp_show_help( argv[0] );
 123             exit( 1 );
 124             /* Never reached. */
 125          }
 126
 127          case 'v':
 128          {
 129             dockapp_show_version();
 130             exit( 1 );
 131             /* Never reached. */
 132          }
 133       }
 134
 135       opt = getopt_long_only( argc, argv, "hv", longopts, NULL);
 136    }
 137
 138    createXBMfromXPM( wmmisc_mask_bits,
 139                         wmmisc_master_xpm,
 140                         wmmisc_mask_width,
 141                         wmmisc_mask_height );
 142
 143    openXwindow( argc,
 144                 argv,
 145                 wmmisc_master_xpm,
 146                 wmmisc_mask_bits,
 147                 wmmisc_mask_width,
 148                 wmmisc_mask_height );
 149
 150    RedrawWindow();
 151
 152    dockapp_draw_small_str( "USERS", 4, 4 );
 153    dockapp_draw_small_str( "PROCS", 4, 11 );
 154    dockapp_draw_small_str( "ACTIVE", 4, 18 );
 155
 156    dockapp_draw_small_str( "UP", 4, 28 );
 157    dockapp_draw_small_str( "DAYS", 4, 37 );
 158    dockapp_draw_small_str( "WEEKS", 4, 44 );
 159
 160    dockapp_draw_small_str( "LOAD", 4, 53 );
 161
 162    do
 163    {
 164       dockapp_draw_data();
 165       usleep( 250000L );
 166    } while( 1 );
 167
 168    return 0;
 169 }