main.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <signal.h>
   5 #include <glib.h>
   6
   7 #include "config.h"
   8 #include "libmpdclient.h"
   9 #include "support.h"
  10 #include "mpc.h"
  11 #include "options.h"
  12 #include "command.h"
  13 #include "screen.h"
  14 #include "conf.h"
  15
  16 /* time in seconds between mpd updates (double) */
  17 #define MPD_UPDATE_TIME        1.0
  18
  19 /* timout in seconds before trying to reconnect (int) */
  20 #define MPD_RECONNECT_TIMEOUT  3
  21
  22
  23 static mpd_client_t *mpc = NULL;
  24 static GTimer       *timer = NULL;
  25
  26 void
  27 exit_and_cleanup(void)
  28 {
  29   screen_exit();
  30   charset_close();
  31   if( mpc )
  32     {
  33       if( mpc_error(mpc) )
  34         fprintf(stderr,"Error: %s\n", mpc_error_str(mpc));
  35       mpc_close(mpc);
  36     }
  37   g_free(options.host);
  38   g_free(options.password);
  39   if( timer )
  40     g_timer_destroy(timer);
  41 }
  42
  43 void
  44 catch_sigint( int sig )
  45 {
  46   printf( "\nExiting...\n");
  47   exit(EXIT_SUCCESS);
  48 }
  49
  50 int
  51 main(int argc, const char *argv[])
  52 {
  53   options_t *options;
  54   struct sigaction act;
  55   gboolean connected;
  56
  57   /* initialize options */
  58   options = options_init();
  59
  60   /* read configuration */
  61   read_rc_file(NULL, options);
  62
  63   /* parse command line options */
  64   options_parse(argc, argv);
  65
  66   /* initialize local charset */
  67   if( charset_init() )
  68     exit(EXIT_FAILURE);
  69
  70   /* setup signal behavior - SIGINT */
  71   sigemptyset( &act.sa_mask );
  72   act.sa_flags    = 0;
  73   act.sa_handler = catch_sigint;
  74   if( sigaction( SIGINT, &act, NULL )<0 )
  75     {
  76       perror("signal");
  77       exit(EXIT_FAILURE);
  78     }
  79   /* setup signal behavior - SIGWINCH  */
  80   sigemptyset( &act.sa_mask );
  81   act.sa_flags    = 0;
  82   act.sa_handler = screen_resized;
  83   if( sigaction( SIGWINCH, &act, NULL )<0 )
  84     {
  85       perror("sigaction()");
  86       exit(EXIT_FAILURE);
  87     }
  88   /* setup signal behavior - SIGTERM */
  89   sigemptyset( &act.sa_mask );
  90   act.sa_flags    = 0;
  91   act.sa_handler = catch_sigint;
  92   if( sigaction( SIGTERM, &act, NULL )<0 )
  93     {
  94       perror("sigaction()");
  95       exit(EXIT_FAILURE);
  96     }
  97
  98   /* set xterm title */
  99   if( g_getenv("DISPLAY") )
 100     printf("%c]0;%s%c", '\033', PACKAGE " version " VERSION, '\007');
 101
 102   /* install exit function */
 103   atexit(exit_and_cleanup);
 104
 105   /* connect to our music player daemon */
 106   mpc = mpc_connect(options->host, options->port, options->password);
 107   if( mpc_error(mpc) )
 108     exit(EXIT_FAILURE);
 109
 110   /* initialize curses */
 111   screen_init();
 112
 113   /* initialize timer */
 114   timer = g_timer_new();
 115
 116   connected = TRUE;
 117   while( connected || options->reconnect )
 118     {
 119       static gdouble t = G_MAXDOUBLE;
 120
 121       if( connected && t>=MPD_UPDATE_TIME )
 122         {
 123           mpc_update(mpc);
 124           if( mpc_error(mpc) == MPD_ERROR_ACK )
 125             {
 126               screen_status_printf("%s", mpc_error_str(mpc));
 127               mpd_clearError(mpc->connection);
 128               mpd_finishCommand(mpc->connection);
 129             }
 130           else if( mpc_error(mpc) )
 131             {
 132               screen_status_printf("Lost connection to %s", options->host);
 133               connected = FALSE;
 134               doupdate();
 135               mpd_clearError(mpc->connection);
 136               mpd_closeConnection(mpc->connection);
 137               mpc->connection = NULL;
 138             }
 139           else
 140             mpd_finishCommand(mpc->connection);
 141           g_timer_start(timer);
 142         }
 143
 144       if( connected )
 145         {
 146           command_t cmd;
 147
 148           screen_update(mpc);
 149           if( (cmd=get_keyboard_command()) != CMD_NONE )
 150             {
 151               screen_cmd(mpc, cmd);
 152               if( cmd==CMD_VOLUME_UP || cmd==CMD_VOLUME_DOWN)
 153                 /* make shure we dont update the volume yet */
 154                 g_timer_start(timer);
 155             }
 156         }
 157       else if( options->reconnect )
 158         {
 159           sleep(MPD_RECONNECT_TIMEOUT);
 160           screen_status_printf("Connecting to %s...  [Press Ctrl-C to abort]",
 161                                options->host);
 162           if( mpc_reconnect(mpc,
 163                             options->host,
 164                             options->port,
 165                             options->password) == 0 )
 166             {
 167               screen_status_printf("Connected to %s!", options->host);
 168               connected = TRUE;
 169             }
 170           doupdate();
 171         }
 172
 173       t = g_timer_elapsed(timer, NULL);
 174     }
 175
 176   exit(EXIT_FAILURE);
 177 }