gio/tests/gdbus-connection.c

   1 /* GLib testing framework examples and tests
   2  *
   3  * Copyright (C) 2008-2010 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library 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 GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: David Zeuthen <davidz@redhat.com>
  21  */
  22
  23 #include <gio/gio.h>
  24 #include <unistd.h>
  25 #include <string.h>
  26
  27 #include <sys/types.h>
  28 #include <sys/wait.h>
  29
  30 #include "gdbus-tests.h"
  31
  32 /* all tests rely on a shared mainloop */
  33 static GMainLoop *loop = NULL;
  34
  35 G_GNUC_UNUSED static void
  36 _log (const gchar *format, ...)
  37 {
  38   GTimeVal now;
  39   time_t now_time;
  40   struct tm *now_tm;
  41   gchar time_buf[128];
  42   gchar *str;
  43   va_list var_args;
  44
  45   va_start (var_args, format);
  46   str = g_strdup_vprintf (format, var_args);
  47   va_end (var_args);
  48
  49   g_get_current_time (&now);
  50   now_time = (time_t) now.tv_sec;
  51   now_tm = localtime (&now_time);
  52   strftime (time_buf, sizeof time_buf, "%H:%M:%S", now_tm);
  53
  54   g_print ("%s.%06d: %s\n",
  55            time_buf, (gint) now.tv_usec / 1000,
  56            str);
  57   g_free (str);
  58 }
  59
  60 static gboolean
  61 test_connection_quit_mainloop (gpointer user_data)
  62 {
  63   volatile gboolean *quit_mainloop_fired = user_data;
  64   //_log ("quit_mainloop_fired");
  65   *quit_mainloop_fired = TRUE;
  66   g_main_loop_quit (loop);
  67   return TRUE;
  68 }
  69
  70 /* ---------------------------------------------------------------------------------------------------- */
  71 /* Connection life-cycle testing */
  72 /* ---------------------------------------------------------------------------------------------------- */
  73
  74 static const GDBusInterfaceInfo boo_interface_info =
  75 {
  76   -1,
  77   "org.example.Boo",
  78   (GDBusMethodInfo **) NULL,
  79   (GDBusSignalInfo **) NULL,
  80   (GDBusPropertyInfo **) NULL,
  81   NULL,
  82 };
  83
  84 static const GDBusInterfaceVTable boo_vtable =
  85 {
  86   NULL, /* _method_call */
  87   NULL, /* _get_property */
  88   NULL  /* _set_property */
  89 };
  90
  91 static GDBusMessage *
  92 some_filter_func (GDBusConnection *connection,
  93                   GDBusMessage    *message,
  94                   gboolean         incoming,
  95                   gpointer         user_data)
  96 {
  97   return message;
  98 }
  99
 100 static void
 101 on_name_owner_changed (GDBusConnection *connection,
 102                        const gchar     *sender_name,
 103                        const gchar     *object_path,
 104                        const gchar     *interface_name,
 105                        const gchar     *signal_name,
 106                        GVariant        *parameters,
 107                        gpointer         user_data)
 108 {
 109 }
 110
 111 static void
 112 a_gdestroynotify_that_sets_a_gboolean_to_true_and_quits_loop (gpointer user_data)
 113 {
 114   volatile gboolean *val = user_data;
 115   *val = TRUE;
 116   //_log ("destroynotify fired for %p", val);
 117   g_main_loop_quit (loop);
 118 }
 119
 120 static void
 121 test_connection_life_cycle (void)
 122 {
 123   gboolean ret;
 124   GDBusConnection *c;
 125   GDBusConnection *c2;
 126   GError *error;
 127   volatile gboolean on_signal_registration_freed_called;
 128   volatile gboolean on_filter_freed_called;
 129   volatile gboolean on_register_object_freed_called;
 130   volatile gboolean quit_mainloop_fired;
 131   guint quit_mainloop_id;
 132   guint registration_id;
 133
 134   error = NULL;
 135
 136   /*
 137    * Check for correct behavior when no bus is present
 138    *
 139    */
 140   c = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
 141   _g_assert_error_domain (error, G_IO_ERROR);
 142   g_assert (!g_dbus_error_is_remote_error (error));
 143   g_assert (c == NULL);
 144   g_error_free (error);
 145
 146   /*
 147    *  Check for correct behavior when a bus is present
 148    */
 149   session_bus_up ();
 150   /* case 1 */
 151   error = NULL;
 152   c = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
 153   g_assert_no_error (error);
 154   g_assert (c != NULL);
 155   g_assert (!g_dbus_connection_is_closed (c));
 156
 157   /*
 158    * Check that singleton handling work
 159    */
 160   error = NULL;
 161   c2 = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
 162   g_assert_no_error (error);
 163   g_assert (c2 != NULL);
 164   g_assert (c == c2);
 165   g_object_unref (c2);
 166
 167   /*
 168    * Check that private connections work
 169    */
 170   c2 = _g_bus_get_priv (G_BUS_TYPE_SESSION, NULL, &error);
 171   g_assert_no_error (error);
 172   g_assert (c2 != NULL);
 173   g_assert (c != c2);
 174   g_object_unref (c2);
 175
 176   c2 = _g_bus_get_priv (G_BUS_TYPE_SESSION, NULL, &error);
 177   g_assert_no_error (error);
 178   g_assert (c2 != NULL);
 179   g_assert (!g_dbus_connection_is_closed (c2));
 180   ret = g_dbus_connection_close_sync (c2, NULL, &error);
 181   g_assert_no_error (error);
 182   g_assert (ret);
 183   _g_assert_signal_received (c2, "closed");
 184   g_assert (g_dbus_connection_is_closed (c2));
 185   ret = g_dbus_connection_close_sync (c2, NULL, &error);
 186   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_CLOSED);
 187   g_error_free (error);
 188   g_assert (!ret);
 189   g_object_unref (c2);
 190
 191   /*
 192    * Check that the finalization code works
 193    *
 194    * (and that the GDestroyNotify for filters and objects and signal
 195    * registrations are run as expected)
 196    */
 197   error = NULL;
 198   c2 = _g_bus_get_priv (G_BUS_TYPE_SESSION, NULL, &error);
 199   g_assert_no_error (error);
 200   g_assert (c2 != NULL);
 201   /* signal registration */
 202   on_signal_registration_freed_called = FALSE;
 203   g_dbus_connection_signal_subscribe (c2,
 204                                       "org.freedesktop.DBus", /* bus name */
 205                                       "org.freedesktop.DBus", /* interface */
 206                                       "NameOwnerChanged",     /* member */
 207                                       "/org/freesktop/DBus",  /* path */
 208                                       NULL,                   /* arg0 */
 209                                       G_DBUS_SIGNAL_FLAGS_NONE,
 210                                       on_name_owner_changed,
 211                                       (gpointer) &on_signal_registration_freed_called,
 212                                       a_gdestroynotify_that_sets_a_gboolean_to_true_and_quits_loop);
 213   /* filter func */
 214   on_filter_freed_called = FALSE;
 215   g_dbus_connection_add_filter (c2,
 216                                 some_filter_func,
 217                                 (gpointer) &on_filter_freed_called,
 218                                 a_gdestroynotify_that_sets_a_gboolean_to_true_and_quits_loop);
 219   /* object registration */
 220   on_register_object_freed_called = FALSE;
 221   error = NULL;
 222   registration_id = g_dbus_connection_register_object (c2,
 223                                                        "/foo",
 224                                                        (GDBusInterfaceInfo *) &boo_interface_info,
 225                                                        &boo_vtable,
 226                                                        (gpointer) &on_register_object_freed_called,
 227                                                        a_gdestroynotify_that_sets_a_gboolean_to_true_and_quits_loop,
 228                                                        &error);
 229   g_assert_no_error (error);
 230   g_assert (registration_id > 0);
 231   /* ok, finalize the connection and check that all the GDestroyNotify functions are invoked as expected */
 232   g_object_unref (c2);
 233   quit_mainloop_fired = FALSE;
 234   quit_mainloop_id = g_timeout_add (30000, test_connection_quit_mainloop, (gpointer) &quit_mainloop_fired);
 235   //_log ("destroynotifies for\n"
 236   //      " register_object %p\n"
 237   //      " filter          %p\n"
 238   //      " signal          %p",
 239   //      &on_register_object_freed_called,
 240   //      &on_filter_freed_called,
 241   //      &on_signal_registration_freed_called);
 242   while (TRUE)
 243     {
 244       if (on_signal_registration_freed_called &&
 245           on_filter_freed_called &&
 246           on_register_object_freed_called)
 247         break;
 248       if (quit_mainloop_fired)
 249         break;
 250       //_log ("entering loop");
 251       g_main_loop_run (loop);
 252       //_log ("exiting loop");
 253     }
 254   g_source_remove (quit_mainloop_id);
 255   g_assert (on_signal_registration_freed_called);
 256   g_assert (on_filter_freed_called);
 257   g_assert (on_register_object_freed_called);
 258   g_assert (!quit_mainloop_fired);
 259
 260   /*
 261    *  Check for correct behavior when the bus goes away
 262    *
 263    */
 264   g_assert (!g_dbus_connection_is_closed (c));
 265   g_dbus_connection_set_exit_on_close (c, FALSE);
 266   session_bus_down ();
 267   if (!g_dbus_connection_is_closed (c))
 268     _g_assert_signal_received (c, "closed");
 269   g_assert (g_dbus_connection_is_closed (c));
 270
 271   _g_object_wait_for_single_ref (c);
 272   g_object_unref (c);
 273 }
 274
 275 /* ---------------------------------------------------------------------------------------------------- */
 276 /* Test that sending and receiving messages work as expected */
 277 /* ---------------------------------------------------------------------------------------------------- */
 278
 279 static void
 280 msg_cb_expect_error_disconnected (GDBusConnection *connection,
 281                                   GAsyncResult    *res,
 282                                   gpointer         user_data)
 283 {
 284   GError *error;
 285   GVariant *result;
 286
 287   error = NULL;
 288   result = g_dbus_connection_call_finish (connection,
 289                                           res,
 290                                           &error);
 291   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_CLOSED);
 292   g_assert (!g_dbus_error_is_remote_error (error));
 293   g_error_free (error);
 294   g_assert (result == NULL);
 295
 296   g_main_loop_quit (loop);
 297 }
 298
 299 static void
 300 msg_cb_expect_error_unknown_method (GDBusConnection *connection,
 301                                     GAsyncResult    *res,
 302                                     gpointer         user_data)
 303 {
 304   GError *error;
 305   GVariant *result;
 306
 307   error = NULL;
 308   result = g_dbus_connection_call_finish (connection,
 309                                           res,
 310                                           &error);
 311   g_assert_error (error, G_DBUS_ERROR, G_DBUS_ERROR_UNKNOWN_METHOD);
 312   g_assert (g_dbus_error_is_remote_error (error));
 313   g_error_free (error);
 314   g_assert (result == NULL);
 315
 316   g_main_loop_quit (loop);
 317 }
 318
 319 static void
 320 msg_cb_expect_success (GDBusConnection *connection,
 321                        GAsyncResult    *res,
 322                        gpointer         user_data)
 323 {
 324   GError *error;
 325   GVariant *result;
 326
 327   error = NULL;
 328   result = g_dbus_connection_call_finish (connection,
 329                                           res,
 330                                           &error);
 331   g_assert_no_error (error);
 332   g_assert (result != NULL);
 333   g_variant_unref (result);
 334
 335   g_main_loop_quit (loop);
 336 }
 337
 338 static void
 339 msg_cb_expect_error_cancelled (GDBusConnection *connection,
 340                                GAsyncResult    *res,
 341                                gpointer         user_data)
 342 {
 343   GError *error;
 344   GVariant *result;
 345
 346   error = NULL;
 347   result = g_dbus_connection_call_finish (connection,
 348                                           res,
 349                                           &error);
 350   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_CANCELLED);
 351   g_assert (!g_dbus_error_is_remote_error (error));
 352   g_error_free (error);
 353   g_assert (result == NULL);
 354
 355   g_main_loop_quit (loop);
 356 }
 357
 358 static void
 359 msg_cb_expect_error_cancelled_2 (GDBusConnection *connection,
 360                                  GAsyncResult    *res,
 361                                  gpointer         user_data)
 362 {
 363   GError *error;
 364   GVariant *result;
 365
 366   error = NULL;
 367   result = g_dbus_connection_call_finish (connection,
 368                                           res,
 369                                           &error);
 370   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_CANCELLED);
 371   g_assert (!g_dbus_error_is_remote_error (error));
 372   g_error_free (error);
 373   g_assert (result == NULL);
 374
 375   g_main_loop_quit (loop);
 376 }
 377
 378 /* ---------------------------------------------------------------------------------------------------- */
 379
 380 static void
 381 test_connection_send (void)
 382 {
 383   GDBusConnection *c;
 384   GCancellable *ca;
 385
 386   session_bus_up ();
 387
 388   /* First, get an unopened connection */
 389   c = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
 390   g_assert (c != NULL);
 391   g_assert (!g_dbus_connection_is_closed (c));
 392
 393   /*
 394    * Check that we never actually send a message if the GCancellable
 395    * is already cancelled - i.e.  we should get #G_IO_ERROR_CANCELLED
 396    * when the actual connection is not up.
 397    */
 398   ca = g_cancellable_new ();
 399   g_cancellable_cancel (ca);
 400   g_dbus_connection_call (c,
 401                           "org.freedesktop.DBus",  /* bus_name */
 402                           "/org/freedesktop/DBus", /* object path */
 403                           "org.freedesktop.DBus",  /* interface name */
 404                           "GetId",                 /* method name */
 405                           NULL, NULL,
 406                           G_DBUS_CALL_FLAGS_NONE,
 407                           -1,
 408                           ca,
 409                           (GAsyncReadyCallback) msg_cb_expect_error_cancelled,
 410                           NULL);
 411   g_main_loop_run (loop);
 412   g_object_unref (ca);
 413
 414   /*
 415    * Check that we get a reply to the GetId() method call.
 416    */
 417   g_dbus_connection_call (c,
 418                           "org.freedesktop.DBus",  /* bus_name */
 419                           "/org/freedesktop/DBus", /* object path */
 420                           "org.freedesktop.DBus",  /* interface name */
 421                           "GetId",                 /* method name */
 422                           NULL, NULL,
 423                           G_DBUS_CALL_FLAGS_NONE,
 424                           -1,
 425                           NULL,
 426                           (GAsyncReadyCallback) msg_cb_expect_success,
 427                           NULL);
 428   g_main_loop_run (loop);
 429
 430   /*
 431    * Check that we get an error reply to the NonExistantMethod() method call.
 432    */
 433   g_dbus_connection_call (c,
 434                           "org.freedesktop.DBus",  /* bus_name */
 435                           "/org/freedesktop/DBus", /* object path */
 436                           "org.freedesktop.DBus",  /* interface name */
 437                           "NonExistantMethod",     /* method name */
 438                           NULL, NULL,
 439                           G_DBUS_CALL_FLAGS_NONE,
 440                           -1,
 441                           NULL,
 442                           (GAsyncReadyCallback) msg_cb_expect_error_unknown_method,
 443                           NULL);
 444   g_main_loop_run (loop);
 445
 446   /*
 447    * Check that cancellation works when the message is already in flight.
 448    */
 449   ca = g_cancellable_new ();
 450   g_dbus_connection_call (c,
 451                           "org.freedesktop.DBus",  /* bus_name */
 452                           "/org/freedesktop/DBus", /* object path */
 453                           "org.freedesktop.DBus",  /* interface name */
 454                           "GetId",                 /* method name */
 455                           NULL, NULL,
 456                           G_DBUS_CALL_FLAGS_NONE,
 457                           -1,
 458                           ca,
 459                           (GAsyncReadyCallback) msg_cb_expect_error_cancelled_2,
 460                           NULL);
 461   g_cancellable_cancel (ca);
 462   g_main_loop_run (loop);
 463   g_object_unref (ca);
 464
 465   /*
 466    * Check that we get an error when sending to a connection that is disconnected.
 467    */
 468   g_dbus_connection_set_exit_on_close (c, FALSE);
 469   session_bus_down ();
 470   _g_assert_signal_received (c, "closed");
 471   g_assert (g_dbus_connection_is_closed (c));
 472
 473   g_dbus_connection_call (c,
 474                           "org.freedesktop.DBus",  /* bus_name */
 475                           "/org/freedesktop/DBus", /* object path */
 476                           "org.freedesktop.DBus",  /* interface name */
 477                           "GetId",                 /* method name */
 478                           NULL, NULL,
 479                           G_DBUS_CALL_FLAGS_NONE,
 480                           -1,
 481                           NULL,
 482                           (GAsyncReadyCallback) msg_cb_expect_error_disconnected,
 483                           NULL);
 484   g_main_loop_run (loop);
 485
 486   _g_object_wait_for_single_ref (c);
 487   g_object_unref (c);
 488 }
 489
 490 /* ---------------------------------------------------------------------------------------------------- */
 491 /* Connection signal tests */
 492 /* ---------------------------------------------------------------------------------------------------- */
 493
 494 static void
 495 test_connection_signal_handler (GDBusConnection  *connection,
 496                                 const gchar      *sender_name,
 497                                 const gchar      *object_path,
 498                                 const gchar      *interface_name,
 499                                 const gchar      *signal_name,
 500                                 GVariant         *parameters,
 501                                 gpointer         user_data)
 502 {
 503   gint *counter = user_data;
 504   *counter += 1;
 505
 506   /*g_debug ("in test_connection_signal_handler (sender=%s path=%s interface=%s member=%s)",
 507            sender_name,
 508            object_path,
 509            interface_name,
 510            signal_name);*/
 511
 512   g_main_loop_quit (loop);
 513 }
 514
 515 static void
 516 test_connection_signals (void)
 517 {
 518   GDBusConnection *c1;
 519   GDBusConnection *c2;
 520   GDBusConnection *c3;
 521   guint s1;
 522   guint s1b;
 523   guint s2;
 524   guint s3;
 525   gint count_s1;
 526   gint count_s1b;
 527   gint count_s2;
 528   gint count_name_owner_changed;
 529   GError *error;
 530   gboolean ret;
 531   GVariant *result;
 532   gboolean quit_mainloop_fired;
 533   guint quit_mainloop_id;
 534
 535   error = NULL;
 536
 537   /*
 538    * Bring up first separate connections
 539    */
 540   session_bus_up ();
 541   /* if running with dbus-monitor, it claims the name :1.0 - so if we don't run with the monitor
 542    * emulate this
 543    */
 544   if (g_getenv ("G_DBUS_MONITOR") == NULL)
 545     {
 546       c1 = _g_bus_get_priv (G_BUS_TYPE_SESSION, NULL, NULL);
 547       g_assert (c1 != NULL);
 548       g_assert (!g_dbus_connection_is_closed (c1));
 549       g_object_unref (c1);
 550     }
 551   c1 = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
 552   g_assert (c1 != NULL);
 553   g_assert (!g_dbus_connection_is_closed (c1));
 554   g_assert_cmpstr (g_dbus_connection_get_unique_name (c1), ==, ":1.1");
 555
 556   /*
 557    * Install two signal handlers for the first connection
 558    *
 559    *  - Listen to the signal "Foo" from :1.2 (e.g. c2)
 560    *  - Listen to the signal "Foo" from anyone (e.g. both c2 and c3)
 561    *
 562    * and then count how many times this signal handler was invoked.
 563    */
 564   s1 = g_dbus_connection_signal_subscribe (c1,
 565                                            ":1.2",
 566                                            "org.gtk.GDBus.ExampleInterface",
 567                                            "Foo",
 568                                            "/org/gtk/GDBus/ExampleInterface",
 569                                            NULL,
 570                                            G_DBUS_SIGNAL_FLAGS_NONE,
 571                                            test_connection_signal_handler,
 572                                            &count_s1,
 573                                            NULL);
 574   s2 = g_dbus_connection_signal_subscribe (c1,
 575                                            NULL, /* match any sender */
 576                                            "org.gtk.GDBus.ExampleInterface",
 577                                            "Foo",
 578                                            "/org/gtk/GDBus/ExampleInterface",
 579                                            NULL,
 580                                            G_DBUS_SIGNAL_FLAGS_NONE,
 581                                            test_connection_signal_handler,
 582                                            &count_s2,
 583                                            NULL);
 584   s3 = g_dbus_connection_signal_subscribe (c1,
 585                                            "org.freedesktop.DBus",  /* sender */
 586                                            "org.freedesktop.DBus",  /* interface */
 587                                            "NameOwnerChanged",      /* member */
 588                                            "/org/freedesktop/DBus", /* path */
 589                                            NULL,
 590                                            G_DBUS_SIGNAL_FLAGS_NONE,
 591                                            test_connection_signal_handler,
 592                                            &count_name_owner_changed,
 593                                            NULL);
 594   /* Note that s1b is *just like* s1 - this is to catch a bug where N
 595    * subscriptions of the same rule causes N calls to each of the N
 596    * subscriptions instead of just 1 call to each of the N subscriptions.
 597    */
 598   s1b = g_dbus_connection_signal_subscribe (c1,
 599                                             ":1.2",
 600                                             "org.gtk.GDBus.ExampleInterface",
 601                                             "Foo",
 602                                             "/org/gtk/GDBus/ExampleInterface",
 603                                             NULL,
 604                                             G_DBUS_SIGNAL_FLAGS_NONE,
 605                                             test_connection_signal_handler,
 606                                             &count_s1b,
 607                                             NULL);
 608   g_assert (s1 != 0);
 609   g_assert (s1b != 0);
 610   g_assert (s2 != 0);
 611   g_assert (s3 != 0);
 612
 613   count_s1 = 0;
 614   count_s1b = 0;
 615   count_s2 = 0;
 616   count_name_owner_changed = 0;
 617
 618   /*
 619    * Bring up two other connections
 620    */
 621   c2 = _g_bus_get_priv (G_BUS_TYPE_SESSION, NULL, NULL);
 622   g_assert (c2 != NULL);
 623   g_assert (!g_dbus_connection_is_closed (c2));
 624   g_assert_cmpstr (g_dbus_connection_get_unique_name (c2), ==, ":1.2");
 625   c3 = _g_bus_get_priv (G_BUS_TYPE_SESSION, NULL, NULL);
 626   g_assert (c3 != NULL);
 627   g_assert (!g_dbus_connection_is_closed (c3));
 628   g_assert_cmpstr (g_dbus_connection_get_unique_name (c3), ==, ":1.3");
 629
 630   /*
 631    * Make c2 emit "Foo" - we should catch it twice
 632    *
 633    * Note that there is no way to be sure that the signal subscriptions
 634    * on c1 are effective yet - for all we know, the AddMatch() messages
 635    * could sit waiting in a buffer somewhere between this process and
 636    * the message bus. And emitting signals on c2 (a completely other
 637    * socket!) will not necessarily change this.
 638    *
 639    * To ensure this is not the case, do a synchronous call on c1.
 640    */
 641   result = g_dbus_connection_call_sync (c1,
 642                                         "org.freedesktop.DBus",  /* bus name */
 643                                         "/org/freedesktop/DBus", /* object path */
 644                                         "org.freedesktop.DBus",  /* interface name */
 645                                         "GetId",                 /* method name */
 646                                         NULL,                    /* parameters */
 647                                         NULL,                    /* return type */
 648                                         G_DBUS_CALL_FLAGS_NONE,
 649                                         -1,
 650                                         NULL,
 651                                         &error);
 652   g_assert_no_error (error);
 653   g_assert (result != NULL);
 654   g_variant_unref (result);
 655   /* now, emit the signal on c2 */
 656   ret = g_dbus_connection_emit_signal (c2,
 657                                        NULL, /* destination bus name */
 658                                        "/org/gtk/GDBus/ExampleInterface",
 659                                        "org.gtk.GDBus.ExampleInterface",
 660                                        "Foo",
 661                                        NULL,
 662                                        &error);
 663   g_assert_no_error (error);
 664   g_assert (ret);
 665   while (!(count_s1 >= 1 && count_s2 >= 1))
 666     g_main_loop_run (loop);
 667   g_assert_cmpint (count_s1, ==, 1);
 668   g_assert_cmpint (count_s2, ==, 1);
 669
 670   /*
 671    * Make c3 emit "Foo" - we should catch it only once
 672    */
 673   ret = g_dbus_connection_emit_signal (c3,
 674                                        NULL, /* destination bus name */
 675                                        "/org/gtk/GDBus/ExampleInterface",
 676                                        "org.gtk.GDBus.ExampleInterface",
 677                                        "Foo",
 678                                        NULL,
 679                                        &error);
 680   g_assert_no_error (error);
 681   g_assert (ret);
 682   while (!(count_s1 == 1 && count_s2 == 2))
 683     g_main_loop_run (loop);
 684   g_assert_cmpint (count_s1, ==, 1);
 685   g_assert_cmpint (count_s2, ==, 2);
 686
 687   /*
 688    * Also to check the total amount of NameOwnerChanged signals - use a 5 second ceiling
 689    * to avoid spinning forever
 690    */
 691   quit_mainloop_fired = FALSE;
 692   quit_mainloop_id = g_timeout_add (30000, test_connection_quit_mainloop, &quit_mainloop_fired);
 693   while (count_name_owner_changed < 2 && !quit_mainloop_fired)
 694     g_main_loop_run (loop);
 695   g_source_remove (quit_mainloop_id);
 696   g_assert_cmpint (count_s1, ==, 1);
 697   g_assert_cmpint (count_s2, ==, 2);
 698   g_assert_cmpint (count_name_owner_changed, ==, 2);
 699
 700   g_dbus_connection_signal_unsubscribe (c1, s1);
 701   g_dbus_connection_signal_unsubscribe (c1, s2);
 702   g_dbus_connection_signal_unsubscribe (c1, s3);
 703   g_dbus_connection_signal_unsubscribe (c1, s1b);
 704
 705   _g_object_wait_for_single_ref (c1);
 706   _g_object_wait_for_single_ref (c2);
 707   _g_object_wait_for_single_ref (c3);
 708
 709   g_object_unref (c1);
 710   g_object_unref (c2);
 711   g_object_unref (c3);
 712
 713   session_bus_down ();
 714 }
 715
 716 /* ---------------------------------------------------------------------------------------------------- */
 717
 718 typedef struct
 719 {
 720   guint num_handled;
 721   guint num_outgoing;
 722   guint32 serial;
 723 } FilterData;
 724
 725 static GDBusMessage *
 726 filter_func (GDBusConnection *connection,
 727              GDBusMessage    *message,
 728              gboolean         incoming,
 729              gpointer         user_data)
 730 {
 731   FilterData *data = user_data;
 732   guint32 reply_serial;
 733
 734   if (incoming)
 735     {
 736       reply_serial = g_dbus_message_get_reply_serial (message);
 737       if (reply_serial == data->serial)
 738         data->num_handled += 1;
 739     }
 740   else
 741     {
 742       data->num_outgoing += 1;
 743     }
 744
 745   return message;
 746 }
 747
 748
 749 typedef struct
 750 {
 751   gboolean alter_incoming;
 752   gboolean alter_outgoing;
 753 } FilterEffects;
 754
 755 static GDBusMessage *
 756 other_filter_func (GDBusConnection *connection,
 757                    GDBusMessage    *message,
 758                    gboolean         incoming,
 759                    gpointer         user_data)
 760 {
 761   FilterEffects *effects = user_data;
 762   GDBusMessage *ret;
 763   gboolean alter;
 764
 765   if (incoming)
 766     alter = effects->alter_incoming;
 767   else
 768     alter = effects->alter_outgoing;
 769
 770   if (alter)
 771     {
 772       GDBusMessage *copy;
 773       GVariant *body;
 774       gchar *s;
 775       gchar *s2;
 776
 777       copy = g_dbus_message_copy (message, NULL);
 778       g_object_unref (message);
 779
 780       body = g_dbus_message_get_body (copy);
 781       g_variant_get (body, "(s)", &s);
 782       s2 = g_strdup_printf ("MOD: %s", s);
 783       g_dbus_message_set_body (copy, g_variant_new ("(s)", s2));
 784       g_free (s2);
 785       g_free (s);
 786
 787       ret = copy;
 788     }
 789   else
 790     {
 791       ret = message;
 792     }
 793
 794   return ret;
 795 }
 796
 797 static void
 798 test_connection_filter_name_owner_changed_signal_handler (GDBusConnection  *connection,
 799                                                           const gchar      *sender_name,
 800                                                           const gchar      *object_path,
 801                                                           const gchar      *interface_name,
 802                                                           const gchar      *signal_name,
 803                                                           GVariant         *parameters,
 804                                                           gpointer         user_data)
 805 {
 806   const gchar *name;
 807   const gchar *old_owner;
 808   const gchar *new_owner;
 809
 810   g_variant_get (parameters,
 811                  "(&s&s&s)",
 812                  &name,
 813                  &old_owner,
 814                  &new_owner);
 815
 816   if (g_strcmp0 (name, "com.example.TestService") == 0 && strlen (new_owner) > 0)
 817     {
 818       g_main_loop_quit (loop);
 819     }
 820 }
 821
 822 static gboolean
 823 test_connection_filter_on_timeout (gpointer user_data)
 824 {
 825   g_printerr ("Timeout waiting 30 sec on service\n");
 826   g_assert_not_reached ();
 827   return FALSE;
 828 }
 829
 830 static void
 831 test_connection_filter (void)
 832 {
 833   GDBusConnection *c;
 834   FilterData data;
 835   GDBusMessage *m;
 836   GDBusMessage *m2;
 837   GDBusMessage *r;
 838   GError *error;
 839   guint filter_id;
 840   guint timeout_mainloop_id;
 841   guint signal_handler_id;
 842   FilterEffects effects;
 843   GVariant *result;
 844   const gchar *s;
 845
 846   memset (&data, '\0', sizeof (FilterData));
 847
 848   session_bus_up ();
 849
 850   error = NULL;
 851   c = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
 852   g_assert_no_error (error);
 853   g_assert (c != NULL);
 854
 855   filter_id = g_dbus_connection_add_filter (c,
 856                                             filter_func,
 857                                             &data,
 858                                             NULL);
 859
 860   m = g_dbus_message_new_method_call ("org.freedesktop.DBus", /* name */
 861                                       "/org/freedesktop/DBus", /* path */
 862                                       "org.freedesktop.DBus", /* interface */
 863                                       "GetNameOwner");
 864   g_dbus_message_set_body (m, g_variant_new ("(s)", "org.freedesktop.DBus"));
 865   error = NULL;
 866   g_dbus_connection_send_message (c, m, G_DBUS_SEND_MESSAGE_FLAGS_NONE, &data.serial, &error);
 867   g_assert_no_error (error);
 868
 869   while (data.num_handled == 0)
 870     g_thread_yield ();
 871
 872   m2 = g_dbus_message_copy (m, &error);
 873   g_assert_no_error (error);
 874   g_dbus_connection_send_message (c, m2, G_DBUS_SEND_MESSAGE_FLAGS_NONE, &data.serial, &error);
 875   g_object_unref (m2);
 876   g_assert_no_error (error);
 877
 878   while (data.num_handled == 1)
 879     g_thread_yield ();
 880
 881   m2 = g_dbus_message_copy (m, &error);
 882   g_assert_no_error (error);
 883   g_dbus_message_set_serial (m2, data.serial);
 884   /* lock the message to test PRESERVE_SERIAL flag. */
 885   g_dbus_message_lock (m2);
 886   g_dbus_connection_send_message (c, m2, G_DBUS_SEND_MESSAGE_FLAGS_PRESERVE_SERIAL, &data.serial, &error);
 887   g_object_unref (m2);
 888   g_assert_no_error (error);
 889
 890   while (data.num_handled == 2)
 891     g_thread_yield ();
 892
 893   m2 = g_dbus_message_copy (m, &error);
 894   g_assert_no_error (error);
 895   r = g_dbus_connection_send_message_with_reply_sync (c,
 896                                                       m2,
 897                                                       G_DBUS_SEND_MESSAGE_FLAGS_NONE,
 898                                                       -1,
 899                                                       &data.serial,
 900                                                       NULL, /* GCancellable */
 901                                                       &error);
 902   g_object_unref (m2);
 903   g_assert_no_error (error);
 904   g_assert (r != NULL);
 905   g_object_unref (r);
 906   g_assert_cmpint (data.num_handled, ==, 4);
 907
 908   g_dbus_connection_remove_filter (c, filter_id);
 909
 910   m2 = g_dbus_message_copy (m, &error);
 911   g_assert_no_error (error);
 912   r = g_dbus_connection_send_message_with_reply_sync (c,
 913                                                       m2,
 914                                                       G_DBUS_SEND_MESSAGE_FLAGS_NONE,
 915                                                       -1,
 916                                                       &data.serial,
 917                                                       NULL, /* GCancellable */
 918                                                       &error);
 919   g_object_unref (m2);
 920   g_assert_no_error (error);
 921   g_assert (r != NULL);
 922   g_object_unref (r);
 923   g_assert_cmpint (data.num_handled, ==, 4);
 924   g_assert_cmpint (data.num_outgoing, ==, 4);
 925
 926   /* this is safe; testserver will exit once the bus goes away */
 927   g_assert (g_spawn_command_line_async (SRCDIR "/gdbus-testserver.py", NULL));
 928   /* wait for service to be available */
 929   signal_handler_id = g_dbus_connection_signal_subscribe (c,
 930                                                           "org.freedesktop.DBus", /* sender */
 931                                                           "org.freedesktop.DBus",
 932                                                           "NameOwnerChanged",
 933                                                           "/org/freedesktop/DBus",
 934                                                           NULL, /* arg0 */
 935                                                           G_DBUS_SIGNAL_FLAGS_NONE,
 936                                                           test_connection_filter_name_owner_changed_signal_handler,
 937                                                           NULL,
 938                                                           NULL);
 939   g_assert_cmpint (signal_handler_id, !=, 0);
 940   timeout_mainloop_id = g_timeout_add (30000, test_connection_filter_on_timeout, NULL);
 941   g_main_loop_run (loop);
 942   g_source_remove (timeout_mainloop_id);
 943   g_dbus_connection_signal_unsubscribe (c, signal_handler_id);
 944
 945   /* now test some combinations... */
 946   filter_id = g_dbus_connection_add_filter (c,
 947                                             other_filter_func,
 948                                             &effects,
 949                                             NULL);
 950   /* -- */
 951   effects.alter_incoming = FALSE;
 952   effects.alter_outgoing = FALSE;
 953   error = NULL;
 954   result = g_dbus_connection_call_sync (c,
 955                                         "com.example.TestService",      /* bus name */
 956                                         "/com/example/TestObject",      /* object path */
 957                                         "com.example.Frob",             /* interface name */
 958                                         "HelloWorld",                   /* method name */
 959                                         g_variant_new ("(s)", "Cat"),   /* parameters */
 960                                         G_VARIANT_TYPE ("(s)"),         /* return type */
 961                                         G_DBUS_CALL_FLAGS_NONE,
 962                                         -1,
 963                                         NULL,
 964                                         &error);
 965   g_assert_no_error (error);
 966   g_variant_get (result, "(&s)", &s);
 967   g_assert_cmpstr (s, ==, "You greeted me with 'Cat'. Thanks!");
 968   g_variant_unref (result);
 969   /* -- */
 970   effects.alter_incoming = TRUE;
 971   effects.alter_outgoing = TRUE;
 972   error = NULL;
 973   result = g_dbus_connection_call_sync (c,
 974                                         "com.example.TestService",      /* bus name */
 975                                         "/com/example/TestObject",      /* object path */
 976                                         "com.example.Frob",             /* interface name */
 977                                         "HelloWorld",                   /* method name */
 978                                         g_variant_new ("(s)", "Cat"),   /* parameters */
 979                                         G_VARIANT_TYPE ("(s)"),         /* return type */
 980                                         G_DBUS_CALL_FLAGS_NONE,
 981                                         -1,
 982                                         NULL,
 983                                         &error);
 984   g_assert_no_error (error);
 985   g_variant_get (result, "(&s)", &s);
 986   g_assert_cmpstr (s, ==, "MOD: You greeted me with 'MOD: Cat'. Thanks!");
 987   g_variant_unref (result);
 988
 989
 990   g_dbus_connection_remove_filter (c, filter_id);
 991
 992   _g_object_wait_for_single_ref (c);
 993   g_object_unref (c);
 994   g_object_unref (m);
 995
 996   session_bus_down ();
 997 }
 998
 999 static void
1000 test_connection_basic (void)
1001 {
1002   GDBusConnection *connection;
1003   GError *error;
1004   GDBusCapabilityFlags flags;
1005   gchar *guid;
1006   gchar *name;
1007   gboolean closed;
1008   gboolean exit_on_close;
1009   GIOStream *stream;
1010   GCredentials *credentials;
1011
1012   session_bus_up ();
1013
1014   error = NULL;
1015   connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
1016   g_assert_no_error (error);
1017   g_assert (connection != NULL);
1018
1019   flags = g_dbus_connection_get_capabilities (connection);
1020   g_assert (flags == G_DBUS_CAPABILITY_FLAGS_NONE ||
1021             flags == G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING);
1022
1023   credentials = g_dbus_connection_get_peer_credentials (connection);
1024   g_assert (credentials == NULL);
1025
1026   g_object_get (connection,
1027                 "stream", &stream,
1028                 "guid", &guid,
1029                 "unique-name", &name,
1030                 "closed", &closed,
1031                 "exit-on-close", &exit_on_close,
1032                 "capabilities", &flags,
1033                 NULL);
1034
1035   g_assert (G_IS_IO_STREAM (stream));
1036   g_assert (g_dbus_is_guid (guid));
1037   g_assert (g_dbus_is_unique_name (name));
1038   g_assert (!closed);
1039   g_assert (exit_on_close);
1040   g_assert (flags == G_DBUS_CAPABILITY_FLAGS_NONE ||
1041             flags == G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING);
1042   g_object_unref (stream);
1043   g_free (name);
1044   g_free (guid);
1045
1046   _g_object_wait_for_single_ref (connection);
1047   g_object_unref (connection);
1048
1049   session_bus_down ();
1050 }
1051
1052 /* ---------------------------------------------------------------------------------------------------- */
1053
1054 int
1055 main (int   argc,
1056       char *argv[])
1057 {
1058   g_type_init ();
1059   g_test_init (&argc, &argv, NULL);
1060
1061   /* all the tests rely on a shared main loop */
1062   loop = g_main_loop_new (NULL, FALSE);
1063
1064   /* all the tests use a session bus with a well-known address that we can bring up and down
1065    * using session_bus_up() and session_bus_down().
1066    */
1067   g_unsetenv ("DISPLAY");
1068   g_setenv ("DBUS_SESSION_BUS_ADDRESS", session_bus_get_temporary_address (), TRUE);
1069
1070   g_test_add_func ("/gdbus/connection/basic", test_connection_basic);
1071   g_test_add_func ("/gdbus/connection/life-cycle", test_connection_life_cycle);
1072   g_test_add_func ("/gdbus/connection/send", test_connection_send);
1073   g_test_add_func ("/gdbus/connection/signals", test_connection_signals);
1074   g_test_add_func ("/gdbus/connection/filter", test_connection_filter);
1075   return g_test_run();
1076 }