mdw@git.distorted.org.uk Git - disorder/blob - disobedience/disobedience.c

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2006, 2007 Richard Kettlewell
   4  *
   5  * This program 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  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20 /** @file disobedience/disobedience.c
  21  * @brief Main Disobedience program
  22  */
  23
  24 #include "disobedience.h"
  25
  26 #include <getopt.h>
  27 #include <locale.h>
  28 #include <pcre.h>
  29
  30 /* Apologies for the numerous de-consting casts, but GLib et al do not seem to
  31  * have heard of const. */
  32
  33 /* Variables --------------------------------------------------------------- */
  34
  35 /** @brief Event loop */
  36 GMainLoop *mainloop;
  37
  38 /** @brief Top-level window */
  39 GtkWidget *toplevel;
  40
  41 /** @brief Label for progress indicator */
  42 GtkWidget *report_label;
  43
  44 /** @brief Main tab group */
  45 GtkWidget *tabs;
  46
  47 /** @brief Main client */
  48 disorder_eclient *client;
  49
  50 /** @brief Log client */
  51 disorder_eclient *logclient;
  52
  53 /** @brief Last reported state
  54  *
  55  * This is updated by log_state().
  56  */
  57 unsigned long last_state;
  58
  59 /** @brief True if some track is playing
  60  *
  61  * This ought to be removed in favour of last_state & DISORDER_PLAYING
  62  */
  63 int playing;
  64
  65 /** @brief Left channel volume */
  66 int volume_l;
  67
  68 /** @brief Right channel volume */
  69 int volume_r;
  70
  71 double goesupto = 10;                   /* volume upper bound */
  72
  73 /** @brief True if a NOP is in flight */
  74 static int nop_in_flight;
  75
  76 /** @brief True if an rtp-address command is in flight */
  77 static int rtp_address_in_flight;
  78
  79 /** @brief Global tooltip group */
  80 GtkTooltips *tips;
  81
  82 /** @brief True if RTP play is available
  83  *
  84  * This is a bit of a bodge...
  85  */
  86 int rtp_supported;
  87
  88 /** @brief True if RTP play is enabled */
  89 int rtp_is_running;
  90
  91 /** @brief Linked list of functions to call when we reset login parameters */
  92 static struct reset_callback_node {
  93   struct reset_callback_node *next;
  94   reset_callback *callback;
  95 } *resets;
  96
  97 /* Window creation --------------------------------------------------------- */
  98
  99 /* Note that all the client operations kicked off from here will only complete
 100  * after we've entered the event loop. */
 101
 102 /** @brief Called when main window is deleted
 103  *
 104  * Terminates the program.
 105  */
 106 static gboolean delete_event(GtkWidget attribute((unused)) *widget,
 107                              GdkEvent attribute((unused)) *event,
 108                              gpointer attribute((unused)) data) {
 109   D(("delete_event"));
 110   exit(0);                              /* die immediately */
 111 }
 112
 113 /** @brief Called when the current tab is switched
 114  *
 115  * Updates the menu settings to correspond to the new page.
 116  */
 117 static void tab_switched(GtkNotebook attribute((unused)) *notebook,
 118                          GtkNotebookPage attribute((unused)) *page,
 119                          guint page_num,
 120                          gpointer attribute((unused)) user_data) {
 121   menu_update(page_num);
 122 }
 123
 124 /** @brief Create the report box */
 125 static GtkWidget *report_box(void) {
 126   GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
 127
 128   report_label = gtk_label_new("");
 129   gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
 130   gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
 131   gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
 132   gtk_container_add(GTK_CONTAINER(vbox), report_label);
 133   return vbox;
 134 }
 135
 136 /** @brief Create and populate the main tab group */
 137 static GtkWidget *notebook(void) {
 138   tabs = gtk_notebook_new();
 139   /* The current tab is _NORMAL, the rest are _ACTIVE, which is bizarre but
 140    * produces not too dreadful appearance */
 141   gtk_widget_set_style(tabs, tool_style);
 142   g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
 143   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue_widget(),
 144                            gtk_label_new("Queue"));
 145   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
 146                            gtk_label_new("Recent"));
 147   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
 148                            gtk_label_new("Choose"));
 149   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), added_widget(),
 150                            gtk_label_new("Added"));
 151   return tabs;
 152 }
 153
 154 /** @brief Create and populate the main window */
 155 static void make_toplevel_window(void) {
 156   GtkWidget *const vbox = gtk_vbox_new(FALSE, 1);
 157   GtkWidget *const rb = report_box();
 158
 159   D(("top_window"));
 160   toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 161   /* default size is too small */
 162   gtk_window_set_default_size(GTK_WINDOW(toplevel), 640, 480);
 163   /* terminate on close */
 164   g_signal_connect(G_OBJECT(toplevel), "delete_event",
 165                    G_CALLBACK(delete_event), NULL);
 166   /* lay out the window */
 167   gtk_window_set_title(GTK_WINDOW(toplevel), "Disobedience");
 168   gtk_container_add(GTK_CONTAINER(toplevel), vbox);
 169   /* lay out the vbox */
 170   gtk_box_pack_start(GTK_BOX(vbox),
 171                      menubar(toplevel),
 172                      FALSE,             /* expand */
 173                      FALSE,             /* fill */
 174                      0);
 175   gtk_box_pack_start(GTK_BOX(vbox),
 176                      control_widget(),
 177                      FALSE,             /* expand */
 178                      FALSE,             /* fill */
 179                      0);
 180   gtk_container_add(GTK_CONTAINER(vbox), notebook());
 181   gtk_box_pack_end(GTK_BOX(vbox),
 182                    rb,
 183                    FALSE,             /* expand */
 184                    FALSE,             /* fill */
 185                    0);
 186   gtk_widget_set_style(toplevel, tool_style);
 187 }
 188
 189 #if MDEBUG
 190 static int widget_count, container_count;
 191
 192 static void count_callback(GtkWidget *w,
 193                            gpointer attribute((unused)) data) {
 194   ++widget_count;
 195   if(GTK_IS_CONTAINER(w)) {
 196     ++container_count;
 197     gtk_container_foreach(GTK_CONTAINER(w), count_callback, 0);
 198   }
 199 }
 200
 201 static void count_widgets(void) {
 202   widget_count = 0;
 203   container_count = 1;
 204   if(toplevel)
 205     gtk_container_foreach(GTK_CONTAINER(toplevel), count_callback, 0);
 206   fprintf(stderr, "widget count: %8d  container count: %8d\n",
 207           widget_count, container_count);
 208 }
 209 #endif
 210
 211 #if MTRACK
 212 const char *mtag = "init";
 213 static hash *mtrack_hash;
 214
 215 static int *mthfind(const char *tag) {
 216   static const int zero = 0;
 217   int *cp = hash_find(mtrack_hash, tag);
 218   if(!cp) {
 219     hash_add(mtrack_hash, tag, &zero, HASH_INSERT);
 220     cp = hash_find(mtrack_hash, tag);
 221   }
 222   return cp;
 223 }
 224
 225 static void *trap_malloc(size_t n) {
 226   void *ptr = malloc(n + sizeof(char *));
 227
 228   *(const char **)ptr = mtag;
 229   ++*mthfind(mtag);
 230   return (char *)ptr + sizeof(char *);
 231 }
 232
 233 static void trap_free(void *ptr) {
 234   const char *tag;
 235   if(!ptr)
 236     return;
 237   ptr = (char *)ptr - sizeof(char *);
 238   tag = *(const char **)ptr;
 239   --*mthfind(tag);
 240   free(ptr);
 241 }
 242
 243 static void *trap_realloc(void *ptr, size_t n) {
 244   if(!ptr)
 245     return trap_malloc(n);
 246   if(!n) {
 247     trap_free(ptr);
 248     return 0;
 249   }
 250   ptr = (char *)ptr - sizeof(char *);
 251   ptr = realloc(ptr, n + sizeof(char *));
 252   *(const char **)ptr = mtag;
 253   return (char *)ptr + sizeof(char *);
 254 }
 255
 256 static int report_tags_callback(const char *key, void *value,
 257                                 void attribute((unused)) *u) {
 258   fprintf(stderr, "%16s: %d\n", key, *(int *)value);
 259   return 0;
 260 }
 261
 262 static void report_tags(void) {
 263   hash_foreach(mtrack_hash, report_tags_callback, 0);
 264   fprintf(stderr, "\n");
 265 }
 266
 267 static const GMemVTable glib_memvtable = {
 268   trap_malloc,
 269   trap_realloc,
 270   trap_free,
 271   0,
 272   0,
 273   0
 274 };
 275 #endif
 276
 277 /** @brief Called once every 10 minutes */
 278 static gboolean periodic(gpointer attribute((unused)) data) {
 279   D(("periodic"));
 280   /* Expire cached data */
 281   cache_expire();
 282   /* Update everything to be sure that the connection to the server hasn't
 283    * mysteriously gone stale on us. */
 284   all_update();
 285 #if MDEBUG
 286   count_widgets();
 287   fprintf(stderr, "cache size: %zu\n", cache_count());
 288 #endif
 289 #if MTRACK
 290   report_tags();
 291 #endif
 292   return TRUE;                          /* don't remove me */
 293 }
 294
 295 /** @brief Called from time to time
 296  *
 297  * Used for debugging purposes
 298  */
 299 static gboolean heartbeat(gpointer attribute((unused)) data) {
 300   static struct timeval last;
 301   struct timeval now;
 302   double delta;
 303
 304   xgettimeofday(&now, 0);
 305   if(last.tv_sec) {
 306     delta = (now.tv_sec + now.tv_sec / 1.0E6)
 307       - (last.tv_sec + last.tv_sec / 1.0E6);
 308     if(delta >= 1.0625)
 309       fprintf(stderr, "%f: %fs between 1s heartbeats\n",
 310               now.tv_sec + now.tv_sec / 1.0E6,
 311               delta);
 312   }
 313   last = now;
 314   return TRUE;
 315 }
 316
 317 /** @brief Called when a NOP completes */
 318 static void nop_completed(void attribute((unused)) *v) {
 319   nop_in_flight = 0;
 320 }
 321
 322 /** @brief Called from time to time to arrange for a NOP to be sent
 323  *
 324  * At most one NOP remains in flight at any moment.  If the client is not
 325  * currently connected then no NOP is sent.
 326  */
 327 static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
 328   if(!nop_in_flight && (disorder_eclient_state(client) & DISORDER_CONNECTED)) {
 329     nop_in_flight = 1;
 330     disorder_eclient_nop(client, nop_completed, 0);
 331   }
 332   if(rtp_supported) {
 333     const int old_state = rtp_is_running;
 334     rtp_is_running = rtp_running();
 335     if(old_state != rtp_is_running)
 336       control_monitor(0);
 337   }
 338   return TRUE;                          /* keep call me please */
 339 }
 340
 341 /** @brief Called when a rtp-address command succeeds */
 342 static void got_rtp_address(void attribute((unused)) *v,
 343                             int attribute((unused)) nvec,
 344                             char attribute((unused)) **vec) {
 345   rtp_address_in_flight = 0;
 346   rtp_supported = 1;
 347   rtp_is_running = rtp_running();
 348   control_monitor(0);
 349 }
 350
 351 /** @brief Called when a rtp-address command fails */
 352 static void no_rtp_address(struct callbackdata attribute((unused)) *cbd,
 353                            int attribute((unused)) code,
 354                            const char attribute((unused)) *msg) {
 355   rtp_address_in_flight = 0;
 356   rtp_supported = 0;
 357   rtp_is_running = 0;
 358   control_monitor(0);
 359 }
 360
 361 /** @brief Called to check whether RTP play is available */
 362 static void check_rtp_address(void) {
 363   if(!rtp_address_in_flight) {
 364     struct callbackdata *const cbd = xmalloc(sizeof *cbd);
 365     cbd->onerror = no_rtp_address;
 366     disorder_eclient_rtp_address(client, got_rtp_address, cbd);
 367   }
 368 }
 369
 370 /* main -------------------------------------------------------------------- */
 371
 372 static const struct option options[] = {
 373   { "help", no_argument, 0, 'h' },
 374   { "version", no_argument, 0, 'V' },
 375   { "config", required_argument, 0, 'c' },
 376   { "tufnel", no_argument, 0, 't' },
 377   { "debug", no_argument, 0, 'd' },
 378   { 0, 0, 0, 0 }
 379 };
 380
 381 /* display usage message and terminate */
 382 static void help(void) {
 383   xprintf("Disobedience - GUI client for DisOrder\n"
 384           "\n"
 385           "Usage:\n"
 386           "  disobedience [OPTIONS]\n"
 387           "Options:\n"
 388           "  --help, -h              Display usage message\n"
 389           "  --version, -V           Display version number\n"
 390           "  --config PATH, -c PATH  Set configuration file\n"
 391           "  --debug, -d             Turn on debugging\n"
 392           "\n"
 393           "Also GTK+ options will work.\n");
 394   xfclose(stdout);
 395   exit(0);
 396 }
 397
 398 /* display version number and terminate */
 399 static void version(void) {
 400   xprintf("disorder version %s\n", disorder_version_string);
 401   xfclose(stdout);
 402   exit(0);
 403 }
 404
 405 /* reset state */
 406 void reset(void) {
 407   struct reset_callback_node *r;
 408
 409   /* reset the clients */
 410   disorder_eclient_close(client);
 411   disorder_eclient_close(logclient);
 412   rtp_supported = 0;
 413   for(r = resets; r; r = r->next)
 414     r->callback();
 415   /* Might be a new server so re-check */
 416   check_rtp_address();
 417 }
 418
 419 /** @brief Register a reset callback */
 420 void register_reset(reset_callback *callback) {
 421   struct reset_callback_node *const r = xmalloc(sizeof *r);
 422
 423   r->next = resets;
 424   r->callback = callback;
 425   resets = r;
 426 }
 427
 428 int main(int argc, char **argv) {
 429   int n;
 430
 431   mem_init();
 432   /* garbage-collect PCRE's memory */
 433   pcre_malloc = xmalloc;
 434   pcre_free = xfree;
 435 #if MTRACK
 436   mtrack_hash = hash_new(sizeof (int));
 437   g_mem_set_vtable((GMemVTable *)&glib_memvtable);
 438 #endif
 439   if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
 440   gtk_init(&argc, &argv);
 441   while((n = getopt_long(argc, argv, "hVc:dtHC", options, 0)) >= 0) {
 442     switch(n) {
 443     case 'h': help();
 444     case 'V': version();
 445     case 'c': configfile = optarg; break;
 446     case 'd': debugging = 1; break;
 447     case 't': goesupto = 11; break;
 448     default: fatal(0, "invalid option");
 449     }
 450   }
 451   signal(SIGPIPE, SIG_IGN);
 452   init_styles();
 453   load_settings();
 454   /* create the event loop */
 455   D(("create main loop"));
 456   mainloop = g_main_loop_new(0, 0);
 457   if(config_read(0)) fatal(0, "cannot read configuration");
 458   /* create the clients */
 459   if(!(client = gtkclient())
 460      || !(logclient = gtkclient()))
 461     return 1;                           /* already reported an error */
 462   /* periodic operations (e.g. expiring the cache) */
 463 #if MDEBUG || MTRACK
 464   g_timeout_add(5000/*milliseconds*/, periodic, 0);
 465 #else
 466   g_timeout_add(600000/*milliseconds*/, periodic, 0);
 467 #endif
 468   /* The point of this is to try and get a handle on mysterious
 469    * unresponsiveness.  It's not very useful in production use. */
 470   if(0)
 471     g_timeout_add(1000/*milliseconds*/, heartbeat, 0);
 472   /* global tooltips */
 473   tips = gtk_tooltips_new();
 474   make_toplevel_window();
 475   /* reset styles now everything has its name */
 476   gtk_rc_reset_styles(gtk_settings_get_for_screen(gdk_screen_get_default()));
 477   gtk_widget_show_all(toplevel);
 478   /* issue a NOP every so often */
 479   g_timeout_add_full(G_PRIORITY_LOW,
 480                      1000/*interval, ms*/,
 481                      maybe_send_nop,
 482                      0/*data*/,
 483                      0/*notify*/);
 484   register_reset(properties_reset);
 485   /* Start monitoring the log */
 486   disorder_eclient_log(logclient, &log_callbacks, 0);
 487   /* See if RTP play supported */
 488   check_rtp_address();
 489   D(("enter main loop"));
 490   MTAG("misc");
 491   g_main_loop_run(mainloop);
 492   return 0;
 493 }
 494
 495 /*
 496 Local Variables:
 497 c-basic-offset:2
 498 comment-column:40
 499 fill-column:79
 500 indent-tabs-mode:nil
 501 End:
 502 */