gio/tests/gdbus-peer.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 /* for open(2) */
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <fcntl.h>
  31 #include <string.h>
  32
  33 /* for g_unlink() */
  34 #include <glib/gstdio.h>
  35
  36 #include <gio/gnetworkingprivate.h>
  37 #include <gio/gunixsocketaddress.h>
  38 #include <gio/gunixfdlist.h>
  39
  40 /* used in test_overflow */
  41 #ifdef G_OS_UNIX
  42 #include <gio/gunixconnection.h>
  43 #include <errno.h>
  44 #endif
  45
  46 #include "gdbus-tests.h"
  47
  48 #ifdef G_OS_UNIX
  49 static gboolean is_unix = TRUE;
  50 #else
  51 static gboolean is_unix = FALSE;
  52 #endif
  53
  54 static gchar *test_guid = NULL;
  55 static GMainLoop *service_loop = NULL;
  56 static GDBusServer *server = NULL;
  57 static GMainLoop *loop = NULL;
  58
  59 /* ---------------------------------------------------------------------------------------------------- */
  60 /* Test that peer-to-peer connections work */
  61 /* ---------------------------------------------------------------------------------------------------- */
  62
  63
  64 typedef struct
  65 {
  66   gboolean accept_connection;
  67   gint num_connection_attempts;
  68   GPtrArray *current_connections;
  69   guint num_method_calls;
  70   gboolean signal_received;
  71 } PeerData;
  72
  73 static const gchar *test_interface_introspection_xml =
  74   "<node>"
  75   "  <interface name='org.gtk.GDBus.PeerTestInterface'>"
  76   "    <method name='HelloPeer'>"
  77   "      <arg type='s' name='greeting' direction='in'/>"
  78   "      <arg type='s' name='response' direction='out'/>"
  79   "    </method>"
  80   "    <method name='EmitSignal'/>"
  81   "    <method name='EmitSignalWithNameSet'/>"
  82   "    <method name='OpenFile'>"
  83   "      <arg type='s' name='path' direction='in'/>"
  84   "    </method>"
  85   "    <signal name='PeerSignal'>"
  86   "      <arg type='s' name='a_string'/>"
  87   "    </signal>"
  88   "    <property type='s' name='PeerProperty' access='read'/>"
  89   "  </interface>"
  90   "</node>";
  91 static GDBusInterfaceInfo *test_interface_introspection_data = NULL;
  92
  93 static void
  94 test_interface_method_call (GDBusConnection       *connection,
  95                             const gchar           *sender,
  96                             const gchar           *object_path,
  97                             const gchar           *interface_name,
  98                             const gchar           *method_name,
  99                             GVariant              *parameters,
 100                             GDBusMethodInvocation *invocation,
 101                             gpointer               user_data)
 102 {
 103   PeerData *data = user_data;
 104   const GDBusMethodInfo *info;
 105
 106   data->num_method_calls++;
 107
 108   g_assert_cmpstr (object_path, ==, "/org/gtk/GDBus/PeerTestObject");
 109   g_assert_cmpstr (interface_name, ==, "org.gtk.GDBus.PeerTestInterface");
 110
 111   info = g_dbus_method_invocation_get_method_info (invocation);
 112   g_assert_cmpstr (info->name, ==, method_name);
 113
 114   if (g_strcmp0 (method_name, "HelloPeer") == 0)
 115     {
 116       const gchar *greeting;
 117       gchar *response;
 118
 119       g_variant_get (parameters, "(&s)", &greeting);
 120
 121       response = g_strdup_printf ("You greeted me with '%s'.",
 122                                   greeting);
 123       g_dbus_method_invocation_return_value (invocation,
 124                                              g_variant_new ("(s)", response));
 125       g_free (response);
 126     }
 127   else if (g_strcmp0 (method_name, "EmitSignal") == 0)
 128     {
 129       GError *error;
 130
 131       error = NULL;
 132       g_dbus_connection_emit_signal (connection,
 133                                      NULL,
 134                                      "/org/gtk/GDBus/PeerTestObject",
 135                                      "org.gtk.GDBus.PeerTestInterface",
 136                                      "PeerSignal",
 137                                      NULL,
 138                                      &error);
 139       g_assert_no_error (error);
 140       g_dbus_method_invocation_return_value (invocation, NULL);
 141     }
 142   else if (g_strcmp0 (method_name, "EmitSignalWithNameSet") == 0)
 143     {
 144       GError *error;
 145       gboolean ret;
 146       GDBusMessage *message;
 147
 148       message = g_dbus_message_new_signal ("/org/gtk/GDBus/PeerTestObject",
 149                                            "org.gtk.GDBus.PeerTestInterface",
 150                                            "PeerSignalWithNameSet");
 151       g_dbus_message_set_sender (message, ":1.42");
 152
 153       error = NULL;
 154       ret = g_dbus_connection_send_message (connection, message, G_DBUS_SEND_MESSAGE_FLAGS_NONE, NULL, &error);
 155       g_assert_no_error (error);
 156       g_assert (ret);
 157       g_object_unref (message);
 158
 159       g_dbus_method_invocation_return_value (invocation, NULL);
 160     }
 161   else if (g_strcmp0 (method_name, "OpenFile") == 0)
 162     {
 163 #ifdef G_OS_UNIX
 164       const gchar *path;
 165       GDBusMessage *reply;
 166       GError *error;
 167       gint fd;
 168       GUnixFDList *fd_list;
 169
 170       g_variant_get (parameters, "(&s)", &path);
 171
 172       fd_list = g_unix_fd_list_new ();
 173
 174       error = NULL;
 175
 176       fd = open (path, O_RDONLY);
 177       g_unix_fd_list_append (fd_list, fd, &error);
 178       g_assert_no_error (error);
 179       close (fd);
 180
 181       reply = g_dbus_message_new_method_reply (g_dbus_method_invocation_get_message (invocation));
 182       g_dbus_message_set_unix_fd_list (reply, fd_list);
 183       g_object_unref (invocation);
 184
 185       error = NULL;
 186       g_dbus_connection_send_message (connection,
 187                                       reply,
 188                                       G_DBUS_SEND_MESSAGE_FLAGS_NONE,
 189                                       NULL, /* out_serial */
 190                                       &error);
 191       g_assert_no_error (error);
 192       g_object_unref (reply);
 193 #else
 194       g_dbus_method_invocation_return_dbus_error (invocation,
 195                                                   "org.gtk.GDBus.NotOnUnix",
 196                                                   "Your OS does not support file descriptor passing");
 197 #endif
 198     }
 199   else
 200     {
 201       g_assert_not_reached ();
 202     }
 203 }
 204
 205 static GVariant *
 206 test_interface_get_property (GDBusConnection  *connection,
 207                              const gchar      *sender,
 208                              const gchar      *object_path,
 209                              const gchar      *interface_name,
 210                              const gchar      *property_name,
 211                              GError          **error,
 212                              gpointer          user_data)
 213 {
 214   g_assert_cmpstr (object_path, ==, "/org/gtk/GDBus/PeerTestObject");
 215   g_assert_cmpstr (interface_name, ==, "org.gtk.GDBus.PeerTestInterface");
 216   g_assert_cmpstr (property_name, ==, "PeerProperty");
 217
 218   return g_variant_new_string ("ThePropertyValue");
 219 }
 220
 221
 222 static const GDBusInterfaceVTable test_interface_vtable =
 223 {
 224   test_interface_method_call,
 225   test_interface_get_property,
 226   NULL  /* set_property */
 227 };
 228
 229 static void
 230 on_proxy_signal_received (GDBusProxy *proxy,
 231                           gchar      *sender_name,
 232                           gchar      *signal_name,
 233                           GVariant   *parameters,
 234                           gpointer    user_data)
 235 {
 236   PeerData *data = user_data;
 237
 238   data->signal_received = TRUE;
 239
 240   g_assert (sender_name == NULL);
 241   g_assert_cmpstr (signal_name, ==, "PeerSignal");
 242   g_main_loop_quit (loop);
 243 }
 244
 245 static void
 246 on_proxy_signal_received_with_name_set (GDBusProxy *proxy,
 247                                         gchar      *sender_name,
 248                                         gchar      *signal_name,
 249                                         GVariant   *parameters,
 250                                         gpointer    user_data)
 251 {
 252   PeerData *data = user_data;
 253
 254   data->signal_received = TRUE;
 255
 256   g_assert_cmpstr (sender_name, ==, ":1.42");
 257   g_assert_cmpstr (signal_name, ==, "PeerSignalWithNameSet");
 258   g_main_loop_quit (loop);
 259 }
 260
 261 /* ---------------------------------------------------------------------------------------------------- */
 262
 263 static gboolean
 264 on_authorize_authenticated_peer (GDBusAuthObserver *observer,
 265                                  GIOStream         *stream,
 266                                  GCredentials      *credentials,
 267                                  gpointer           user_data)
 268 {
 269   PeerData *data = user_data;
 270   gboolean authorized;
 271
 272   data->num_connection_attempts++;
 273
 274   authorized = TRUE;
 275   if (!data->accept_connection)
 276     {
 277       authorized = FALSE;
 278       g_main_loop_quit (loop);
 279     }
 280
 281   return authorized;
 282 }
 283
 284 /* Runs in thread we created GDBusServer in (since we didn't pass G_DBUS_SERVER_FLAGS_RUN_IN_THREAD) */
 285 static void
 286 on_new_connection (GDBusServer *server,
 287                    GDBusConnection *connection,
 288                    gpointer user_data)
 289 {
 290   PeerData *data = user_data;
 291   GError *error;
 292   guint reg_id;
 293
 294   //g_print ("Client connected.\n"
 295   //         "Negotiated capabilities: unix-fd-passing=%d\n",
 296   //         g_dbus_connection_get_capabilities (connection) & G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING);
 297
 298   g_ptr_array_add (data->current_connections, g_object_ref (connection));
 299
 300   /* export object on the newly established connection */
 301   error = NULL;
 302   reg_id = g_dbus_connection_register_object (connection,
 303                                               "/org/gtk/GDBus/PeerTestObject",
 304                                               test_interface_introspection_data,
 305                                               &test_interface_vtable,
 306                                               data,
 307                                               NULL, /* GDestroyNotify for data */
 308                                               &error);
 309   g_assert_no_error (error);
 310   g_assert (reg_id > 0);
 311
 312   g_main_loop_quit (loop);
 313 }
 314
 315 static gpointer
 316 service_thread_func (gpointer user_data)
 317 {
 318   PeerData *data = user_data;
 319   GMainContext *service_context;
 320   GDBusAuthObserver *observer;
 321   GError *error;
 322
 323   service_context = g_main_context_new ();
 324   g_main_context_push_thread_default (service_context);
 325
 326   error = NULL;
 327   observer = g_dbus_auth_observer_new ();
 328   server = g_dbus_server_new_sync (is_unix ? "unix:tmpdir=/tmp/gdbus-test-" : "nonce-tcp:",
 329                                    G_DBUS_SERVER_FLAGS_NONE,
 330                                    test_guid,
 331                                    observer,
 332                                    NULL, /* cancellable */
 333                                    &error);
 334   g_assert_no_error (error);
 335
 336   g_signal_connect (server,
 337                     "new-connection",
 338                     G_CALLBACK (on_new_connection),
 339                     data);
 340   g_signal_connect (observer,
 341                     "authorize-authenticated-peer",
 342                     G_CALLBACK (on_authorize_authenticated_peer),
 343                     data);
 344   g_object_unref (observer);
 345
 346   g_dbus_server_start (server);
 347
 348   service_loop = g_main_loop_new (service_context, FALSE);
 349   g_main_loop_run (service_loop);
 350
 351   g_main_context_pop_thread_default (service_context);
 352
 353   g_main_loop_unref (service_loop);
 354   g_main_context_unref (service_context);
 355
 356   /* test code specifically unrefs the server - see below */
 357   g_assert (server == NULL);
 358
 359   return NULL;
 360 }
 361
 362 #if 0
 363 static gboolean
 364 on_incoming_connection (GSocketService     *service,
 365                         GSocketConnection  *socket_connection,
 366                         GObject            *source_object,
 367                         gpointer           user_data)
 368 {
 369   PeerData *data = user_data;
 370
 371   if (data->accept_connection)
 372     {
 373       GError *error;
 374       guint reg_id;
 375       GDBusConnection *connection;
 376
 377       error = NULL;
 378       connection = g_dbus_connection_new_sync (G_IO_STREAM (socket_connection),
 379                                                test_guid,
 380                                                G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER,
 381                                                NULL, /* cancellable */
 382                                                &error);
 383       g_assert_no_error (error);
 384
 385       g_ptr_array_add (data->current_connections, connection);
 386
 387       /* export object on the newly established connection */
 388       error = NULL;
 389       reg_id = g_dbus_connection_register_object (connection,
 390                                                   "/org/gtk/GDBus/PeerTestObject",
 391                                                   &test_interface_introspection_data,
 392                                                   &test_interface_vtable,
 393                                                   data,
 394                                                   NULL, /* GDestroyNotify for data */
 395                                                   &error);
 396       g_assert_no_error (error);
 397       g_assert (reg_id > 0);
 398
 399     }
 400   else
 401     {
 402       /* don't do anything */
 403     }
 404
 405   data->num_connection_attempts++;
 406
 407   g_main_loop_quit (loop);
 408
 409   /* stops other signal handlers from being invoked */
 410   return TRUE;
 411 }
 412
 413 static gpointer
 414 service_thread_func (gpointer data)
 415 {
 416   GMainContext *service_context;
 417   gchar *socket_path;
 418   GSocketAddress *address;
 419   GError *error;
 420
 421   service_context = g_main_context_new ();
 422   g_main_context_push_thread_default (service_context);
 423
 424   socket_path = g_strdup_printf ("/tmp/gdbus-test-pid-%d", getpid ());
 425   address = g_unix_socket_address_new (socket_path);
 426
 427   service = g_socket_service_new ();
 428   error = NULL;
 429   g_socket_listener_add_address (G_SOCKET_LISTENER (service),
 430                                  address,
 431                                  G_SOCKET_TYPE_STREAM,
 432                                  G_SOCKET_PROTOCOL_DEFAULT,
 433                                  NULL, /* source_object */
 434                                  NULL, /* effective_address */
 435                                  &error);
 436   g_assert_no_error (error);
 437   g_signal_connect (service,
 438                     "incoming",
 439                     G_CALLBACK (on_incoming_connection),
 440                     data);
 441   g_socket_service_start (service);
 442
 443   service_loop = g_main_loop_new (service_context, FALSE);
 444   g_main_loop_run (service_loop);
 445
 446   g_main_context_pop_thread_default (service_context);
 447
 448   g_main_loop_unref (service_loop);
 449   g_main_context_unref (service_context);
 450
 451   g_object_unref (address);
 452   g_free (socket_path);
 453   return NULL;
 454 }
 455 #endif
 456
 457 /* ---------------------------------------------------------------------------------------------------- */
 458
 459 #if 0
 460 static gboolean
 461 check_connection (gpointer user_data)
 462 {
 463   PeerData *data = user_data;
 464   guint n;
 465
 466   for (n = 0; n < data->current_connections->len; n++)
 467     {
 468       GDBusConnection *c;
 469       GIOStream *stream;
 470
 471       c = G_DBUS_CONNECTION (data->current_connections->pdata[n]);
 472       stream = g_dbus_connection_get_stream (c);
 473
 474       g_debug ("In check_connection for %d: connection %p, stream %p", n, c, stream);
 475       g_debug ("closed = %d", g_io_stream_is_closed (stream));
 476
 477       GSocket *socket;
 478       socket = g_socket_connection_get_socket (G_SOCKET_CONNECTION (stream));
 479       g_debug ("socket_closed = %d", g_socket_is_closed (socket));
 480       g_debug ("socket_condition_check = %d", g_socket_condition_check (socket, G_IO_IN|G_IO_OUT|G_IO_ERR|G_IO_HUP));
 481
 482       gchar buf[128];
 483       GError *error;
 484       gssize num_read;
 485       error = NULL;
 486       num_read = g_input_stream_read (g_io_stream_get_input_stream (stream),
 487                                       buf,
 488                                       128,
 489                                       NULL,
 490                                       &error);
 491       if (num_read < 0)
 492         {
 493           g_debug ("error: %s", error->message);
 494           g_error_free (error);
 495         }
 496       else
 497         {
 498           g_debug ("no error, read %d bytes", (gint) num_read);
 499         }
 500     }
 501
 502   return FALSE;
 503 }
 504
 505 static gboolean
 506 on_do_disconnect_in_idle (gpointer data)
 507 {
 508   GDBusConnection *c = G_DBUS_CONNECTION (data);
 509   g_debug ("GDC %p has ref_count %d", c, G_OBJECT (c)->ref_count);
 510   g_dbus_connection_disconnect (c);
 511   g_object_unref (c);
 512   return FALSE;
 513 }
 514 #endif
 515
 516 #ifdef G_OS_UNIX
 517 static gchar *
 518 read_all_from_fd (gint fd, gsize *out_len, GError **error)
 519 {
 520   GString *str;
 521   gchar buf[64];
 522   gssize num_read;
 523
 524   str = g_string_new (NULL);
 525
 526   do
 527     {
 528       num_read = read (fd, buf, sizeof (buf));
 529       if (num_read == -1)
 530         {
 531           if (errno == EAGAIN || errno == EWOULDBLOCK)
 532             continue;
 533           g_set_error (error,
 534                        G_IO_ERROR,
 535                        g_io_error_from_errno (errno),
 536                        "Failed reading %d bytes into offset %d: %s",
 537                        (gint) sizeof (buf),
 538                        (gint) str->len,
 539                        strerror (errno));
 540           goto error;
 541         }
 542       else if (num_read > 0)
 543         {
 544           g_string_append_len (str, buf, num_read);
 545         }
 546       else if (num_read == 0)
 547         {
 548           break;
 549         }
 550     }
 551   while (TRUE);
 552
 553   if (out_len != NULL)
 554     *out_len = str->len;
 555   return g_string_free (str, FALSE);
 556
 557  error:
 558   if (out_len != NULL)
 559     out_len = 0;
 560   g_string_free (str, TRUE);
 561   return NULL;
 562 }
 563 #endif
 564
 565 static void
 566 test_peer (void)
 567 {
 568   GDBusConnection *c;
 569   GDBusConnection *c2;
 570   GDBusProxy *proxy;
 571   GError *error;
 572   PeerData data;
 573   GVariant *value;
 574   GVariant *result;
 575   const gchar *s;
 576   GThread *service_thread;
 577   gulong signal_handler_id;
 578
 579   memset (&data, '\0', sizeof (PeerData));
 580   data.current_connections = g_ptr_array_new_with_free_func (g_object_unref);
 581
 582   /* first try to connect when there is no server */
 583   error = NULL;
 584   c = g_dbus_connection_new_for_address_sync (is_unix ? "unix:path=/tmp/gdbus-test-does-not-exist-pid" :
 585                                               /* NOTE: Even if something is listening on port 12345 the connection
 586                                                * will fail because the nonce file doesn't exist */
 587                                               "nonce-tcp:host=localhost,port=12345,noncefile=this-does-not-exist-gdbus",
 588                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 589                                               NULL, /* GDBusAuthObserver */
 590                                               NULL, /* cancellable */
 591                                               &error);
 592   _g_assert_error_domain (error, G_IO_ERROR);
 593   g_assert (!g_dbus_error_is_remote_error (error));
 594   g_clear_error (&error);
 595   g_assert (c == NULL);
 596
 597   /* bring up a server - we run the server in a different thread to avoid deadlocks */
 598   error = NULL;
 599   service_thread = g_thread_create (service_thread_func,
 600                                     &data,
 601                                     TRUE,
 602                                     &error);
 603   while (service_loop == NULL)
 604     g_thread_yield ();
 605   g_assert (server != NULL);
 606
 607   /* bring up a connection and accept it */
 608   data.accept_connection = TRUE;
 609   error = NULL;
 610   c = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
 611                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 612                                               NULL, /* GDBusAuthObserver */
 613                                               NULL, /* cancellable */
 614                                               &error);
 615   g_assert_no_error (error);
 616   g_assert (c != NULL);
 617   while (data.current_connections->len < 1)
 618     g_main_loop_run (loop);
 619   g_assert_cmpint (data.current_connections->len, ==, 1);
 620   g_assert_cmpint (data.num_connection_attempts, ==, 1);
 621   g_assert (g_dbus_connection_get_unique_name (c) == NULL);
 622   g_assert_cmpstr (g_dbus_connection_get_guid (c), ==, test_guid);
 623
 624   /* check that we create a proxy, read properties, receive signals and invoke
 625    * the HelloPeer() method. Since the server runs in another thread it's fine
 626    * to use synchronous blocking API here.
 627    */
 628   error = NULL;
 629   proxy = g_dbus_proxy_new_sync (c,
 630                                  G_DBUS_PROXY_FLAGS_NONE,
 631                                  NULL,
 632                                  NULL, /* bus_name */
 633                                  "/org/gtk/GDBus/PeerTestObject",
 634                                  "org.gtk.GDBus.PeerTestInterface",
 635                                  NULL, /* GCancellable */
 636                                  &error);
 637   g_assert_no_error (error);
 638   g_assert (proxy != NULL);
 639   error = NULL;
 640   value = g_dbus_proxy_get_cached_property (proxy, "PeerProperty");
 641   g_assert_cmpstr (g_variant_get_string (value, NULL), ==, "ThePropertyValue");
 642
 643   /* try invoking a method */
 644   error = NULL;
 645   result = g_dbus_proxy_call_sync (proxy,
 646                                    "HelloPeer",
 647                                    g_variant_new ("(s)", "Hey Peer!"),
 648                                    G_DBUS_CALL_FLAGS_NONE,
 649                                    -1,
 650                                    NULL,  /* GCancellable */
 651                                    &error);
 652   g_assert_no_error (error);
 653   g_variant_get (result, "(&s)", &s);
 654   g_assert_cmpstr (s, ==, "You greeted me with 'Hey Peer!'.");
 655   g_variant_unref (result);
 656   g_assert_cmpint (data.num_method_calls, ==, 1);
 657
 658   /* make the other peer emit a signal - catch it */
 659   signal_handler_id = g_signal_connect (proxy,
 660                                         "g-signal",
 661                                         G_CALLBACK (on_proxy_signal_received),
 662                                         &data);
 663   g_assert (!data.signal_received);
 664   g_dbus_proxy_call (proxy,
 665                      "EmitSignal",
 666                      NULL,  /* no arguments */
 667                      G_DBUS_CALL_FLAGS_NONE,
 668                      -1,
 669                      NULL,  /* GCancellable */
 670                      NULL,  /* GAsyncReadyCallback - we don't care about the result */
 671                      NULL); /* user_data */
 672   g_main_loop_run (loop);
 673   g_assert (data.signal_received);
 674   g_assert_cmpint (data.num_method_calls, ==, 2);
 675   g_signal_handler_disconnect (proxy, signal_handler_id);
 676
 677   /* Also ensure that messages with the sender header-field set gets
 678    * delivered to the proxy - note that this doesn't really make sense
 679    * e.g. names are meaning-less in a peer-to-peer case... but we
 680    * support it because it makes sense in certain bridging
 681    * applications - see e.g. #623815.
 682    */
 683   signal_handler_id = g_signal_connect (proxy,
 684                                         "g-signal",
 685                                         G_CALLBACK (on_proxy_signal_received_with_name_set),
 686                                         &data);
 687   data.signal_received = FALSE;
 688   g_dbus_proxy_call (proxy,
 689                      "EmitSignalWithNameSet",
 690                      NULL,  /* no arguments */
 691                      G_DBUS_CALL_FLAGS_NONE,
 692                      -1,
 693                      NULL,  /* GCancellable */
 694                      NULL,  /* GAsyncReadyCallback - we don't care about the result */
 695                      NULL); /* user_data */
 696   g_main_loop_run (loop);
 697   g_assert (data.signal_received);
 698   g_assert_cmpint (data.num_method_calls, ==, 3);
 699   g_signal_handler_disconnect (proxy, signal_handler_id);
 700
 701   /* check for UNIX fd passing */
 702 #ifdef G_OS_UNIX
 703   {
 704     GDBusMessage *method_call_message;
 705     GDBusMessage *method_reply_message;
 706     GUnixFDList *fd_list;
 707     gint fd;
 708     gchar *buf;
 709     gsize len;
 710     gchar *buf2;
 711     gsize len2;
 712
 713     method_call_message = g_dbus_message_new_method_call (NULL, /* name */
 714                                                           "/org/gtk/GDBus/PeerTestObject",
 715                                                           "org.gtk.GDBus.PeerTestInterface",
 716                                                           "OpenFile");
 717     g_dbus_message_set_body (method_call_message, g_variant_new ("(s)", "/etc/hosts"));
 718     error = NULL;
 719     method_reply_message = g_dbus_connection_send_message_with_reply_sync (c,
 720                                                                            method_call_message,
 721                                                                            G_DBUS_SEND_MESSAGE_FLAGS_NONE,
 722                                                                            -1,
 723                                                                            NULL, /* out_serial */
 724                                                                            NULL, /* cancellable */
 725                                                                            &error);
 726     g_assert_no_error (error);
 727     g_assert (g_dbus_message_get_message_type (method_reply_message) == G_DBUS_MESSAGE_TYPE_METHOD_RETURN);
 728     fd_list = g_dbus_message_get_unix_fd_list (method_reply_message);
 729     g_assert (fd_list != NULL);
 730     g_assert_cmpint (g_unix_fd_list_get_length (fd_list), ==, 1);
 731     error = NULL;
 732     fd = g_unix_fd_list_get (fd_list, 0, &error);
 733     g_assert_no_error (error);
 734     g_object_unref (method_call_message);
 735     g_object_unref (method_reply_message);
 736
 737     error = NULL;
 738     buf = read_all_from_fd (fd, &len, &error);
 739     g_assert_no_error (error);
 740     g_assert (buf != NULL);
 741     close (fd);
 742
 743     error = NULL;
 744     g_file_get_contents ("/etc/hosts",
 745                          &buf2,
 746                          &len2,
 747                          &error);
 748     g_assert_no_error (error);
 749     g_assert_cmpint (len, ==, len2);
 750     g_assert (memcmp (buf, buf2, len) == 0);
 751     g_free (buf2);
 752     g_free (buf);
 753   }
 754 #else
 755   error = NULL;
 756   result = g_dbus_proxy_call_sync (proxy,
 757                                    "OpenFile",
 758                                    g_variant_new ("(s)", "boo"),
 759                                    G_DBUS_CALL_FLAGS_NONE,
 760                                    -1,
 761                                    NULL,  /* GCancellable */
 762                                    &error);
 763   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_DBUS_ERROR);
 764   g_assert (result == NULL);
 765   g_error_free (error);
 766 #endif /* G_OS_UNIX */
 767
 768   /* Check that g_socket_get_credentials() work - this really should
 769    * be in a GSocket-specific test suite but no such test suite exists
 770    * right now.
 771    */
 772   {
 773     GSocket *socket;
 774     GCredentials *credentials;
 775     socket = g_socket_connection_get_socket (G_SOCKET_CONNECTION (g_dbus_connection_get_stream (c)));
 776     g_assert (G_IS_SOCKET (socket));
 777     error = NULL;
 778     credentials = g_socket_get_credentials (socket, &error);
 779 #ifdef __linux__
 780     {
 781       struct ucred *native_creds;
 782       g_assert_no_error (error);
 783       g_assert (G_IS_CREDENTIALS (credentials));
 784       native_creds = g_credentials_get_native (credentials, G_CREDENTIALS_TYPE_LINUX_UCRED);
 785       g_assert (native_creds != NULL);
 786       g_assert (native_creds->uid == getuid ());
 787       g_assert (native_creds->gid == getgid ());
 788       g_assert (native_creds->pid == getpid ());
 789     }
 790     g_object_unref (credentials);
 791 #else
 792     g_assert_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED);
 793     g_assert (credentials == NULL);
 794 #endif
 795   }
 796
 797
 798   /* bring up a connection - don't accept it - this should fail
 799    */
 800   data.accept_connection = FALSE;
 801   error = NULL;
 802   c2 = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
 803                                                G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 804                                                NULL, /* GDBusAuthObserver */
 805                                                NULL, /* cancellable */
 806                                                &error);
 807   _g_assert_error_domain (error, G_IO_ERROR);
 808   g_assert (c2 == NULL);
 809
 810 #if 0
 811   /* TODO: THIS TEST DOESN'T WORK YET */
 812
 813   /* bring up a connection - accept it.. then disconnect from the client side - check
 814    * that the server side gets the disconnect signal.
 815    */
 816   error = NULL;
 817   data.accept_connection = TRUE;
 818   c2 = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
 819                                                G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 820                                                NULL, /* GDBusAuthObserver */
 821                                                NULL, /* cancellable */
 822                                                &error);
 823   g_assert_no_error (error);
 824   g_assert (c2 != NULL);
 825   g_assert (!g_dbus_connection_get_is_disconnected (c2));
 826   while (data.num_connection_attempts < 3)
 827     g_main_loop_run (loop);
 828   g_assert_cmpint (data.current_connections->len, ==, 2);
 829   g_assert_cmpint (data.num_connection_attempts, ==, 3);
 830   g_assert (!g_dbus_connection_get_is_disconnected (G_DBUS_CONNECTION (data.current_connections->pdata[1])));
 831   g_idle_add (on_do_disconnect_in_idle, c2);
 832   g_debug ("==================================================");
 833   g_debug ("==================================================");
 834   g_debug ("==================================================");
 835   g_debug ("waiting for disconnect on connection %p, stream %p",
 836            data.current_connections->pdata[1],
 837            g_dbus_connection_get_stream (data.current_connections->pdata[1]));
 838
 839   g_timeout_add (2000, check_connection, &data);
 840   //_g_assert_signal_received (G_DBUS_CONNECTION (data.current_connections->pdata[1]), "closed");
 841   g_main_loop_run (loop);
 842   g_assert (g_dbus_connection_get_is_disconnected (G_DBUS_CONNECTION (data.current_connections->pdata[1])));
 843   g_ptr_array_set_size (data.current_connections, 1); /* remove disconnected connection object */
 844 #endif
 845
 846   /* unref the server and stop listening for new connections
 847    *
 848    * This won't bring down the established connections - check that c is still connected
 849    * by invoking a method
 850    */
 851   //g_socket_service_stop (service);
 852   //g_object_unref (service);
 853   g_dbus_server_stop (server);
 854   g_object_unref (server);
 855   server = NULL;
 856
 857   error = NULL;
 858   result = g_dbus_proxy_call_sync (proxy,
 859                                    "HelloPeer",
 860                                    g_variant_new ("(s)", "Hey Again Peer!"),
 861                                    G_DBUS_CALL_FLAGS_NONE,
 862                                    -1,
 863                                    NULL,  /* GCancellable */
 864                                    &error);
 865   g_assert_no_error (error);
 866   g_variant_get (result, "(&s)", &s);
 867   g_assert_cmpstr (s, ==, "You greeted me with 'Hey Again Peer!'.");
 868   g_variant_unref (result);
 869   g_assert_cmpint (data.num_method_calls, ==, 5);
 870
 871 #if 0
 872   /* TODO: THIS TEST DOESN'T WORK YET */
 873
 874   /* now disconnect from the server side - check that the client side gets the signal */
 875   g_assert_cmpint (data.current_connections->len, ==, 1);
 876   g_assert (G_DBUS_CONNECTION (data.current_connections->pdata[0]) != c);
 877   g_dbus_connection_disconnect (G_DBUS_CONNECTION (data.current_connections->pdata[0]));
 878   if (!g_dbus_connection_get_is_disconnected (c))
 879     _g_assert_signal_received (c, "closed");
 880   g_assert (g_dbus_connection_get_is_disconnected (c));
 881 #endif
 882
 883   g_object_unref (c);
 884   g_ptr_array_unref (data.current_connections);
 885   g_object_unref (proxy);
 886
 887   g_main_loop_quit (service_loop);
 888   g_thread_join (service_thread);
 889 }
 890
 891 /* ---------------------------------------------------------------------------------------------------- */
 892
 893 typedef struct
 894 {
 895   GDBusServer *server;
 896   GMainContext *context;
 897   GMainLoop *loop;
 898
 899   GList *connections;
 900 } DmpData;
 901
 902 static void
 903 dmp_data_free (DmpData *data)
 904 {
 905   g_main_loop_unref (data->loop);
 906   g_main_context_unref (data->context);
 907   g_object_unref (data->server);
 908   g_list_foreach (data->connections, (GFunc) g_object_unref, NULL);
 909   g_list_free (data->connections);
 910   g_free (data);
 911 }
 912
 913 static void
 914 dmp_on_method_call (GDBusConnection       *connection,
 915                     const gchar           *sender,
 916                     const gchar           *object_path,
 917                     const gchar           *interface_name,
 918                     const gchar           *method_name,
 919                     GVariant              *parameters,
 920                     GDBusMethodInvocation *invocation,
 921                     gpointer               user_data)
 922 {
 923   //DmpData *data = user_data;
 924   gint32 first;
 925   gint32 second;
 926   g_variant_get (parameters,
 927                  "(ii)",
 928                  &first,
 929                  &second);
 930   g_dbus_method_invocation_return_value (invocation,
 931                                          g_variant_new ("(i)", first + second));
 932 }
 933
 934 static const GDBusInterfaceVTable dmp_interface_vtable =
 935 {
 936   dmp_on_method_call,
 937   NULL,  /* get_property */
 938   NULL   /* set_property */
 939 };
 940
 941
 942 /* Runs in thread we created GDBusServer in (since we didn't pass G_DBUS_SERVER_FLAGS_RUN_IN_THREAD) */
 943 static void
 944 dmp_on_new_connection (GDBusServer     *server,
 945                        GDBusConnection *connection,
 946                        gpointer         user_data)
 947 {
 948   DmpData *data = user_data;
 949   GDBusNodeInfo *node;
 950   GError *error;
 951
 952   /* accept the connection */
 953   data->connections = g_list_prepend (data->connections, g_object_ref (connection));
 954
 955   error = NULL;
 956   node = g_dbus_node_info_new_for_xml ("<node>"
 957                                        "  <interface name='org.gtk.GDBus.DmpInterface'>"
 958                                        "    <method name='AddPair'>"
 959                                        "      <arg type='i' name='first' direction='in'/>"
 960                                        "      <arg type='i' name='second' direction='in'/>"
 961                                        "      <arg type='i' name='sum' direction='out'/>"
 962                                        "    </method>"
 963                                        "  </interface>"
 964                                        "</node>",
 965                                        &error);
 966   g_assert_no_error (error);
 967
 968   /* sleep 100ms before exporting an object - this is to test that
 969    * G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING really works
 970    * (GDBusServer uses this feature).
 971    */
 972   usleep (100 * 1000);
 973
 974   /* export an object */
 975   error = NULL;
 976   g_dbus_connection_register_object (connection,
 977                                      "/dmp/test",
 978                                      node->interfaces[0],
 979                                      &dmp_interface_vtable,
 980                                      data,
 981                                      NULL,
 982                                      &error);
 983   g_dbus_node_info_unref (node);
 984 }
 985
 986 static gpointer
 987 dmp_thread_func (gpointer user_data)
 988 {
 989   DmpData *data = user_data;
 990   GError *error;
 991   gchar *guid;
 992
 993   data->context = g_main_context_new ();
 994   g_main_context_push_thread_default (data->context);
 995
 996   error = NULL;
 997   guid = g_dbus_generate_guid ();
 998   data->server = g_dbus_server_new_sync ("unix:tmpdir=/tmp/gdbus-test-",
 999                                          G_DBUS_SERVER_FLAGS_NONE,
1000                                          guid,
1001                                          NULL, /* GDBusAuthObserver */
1002                                          NULL, /* GCancellable */
1003                                          &error);
1004   g_assert_no_error (error);
1005   g_signal_connect (data->server,
1006                     "new-connection",
1007                     G_CALLBACK (dmp_on_new_connection),
1008                     data);
1009
1010   g_dbus_server_start (data->server);
1011
1012   data->loop = g_main_loop_new (data->context, FALSE);
1013   g_main_loop_run (data->loop);
1014
1015   g_main_context_pop_thread_default (data->context);
1016
1017   g_free (guid);
1018   return NULL;
1019 }
1020
1021 static void
1022 delayed_message_processing (void)
1023 {
1024   GError *error;
1025   DmpData *data;
1026   GThread *service_thread;
1027   guint n;
1028
1029   data = g_new0 (DmpData, 1);
1030
1031   error = NULL;
1032   service_thread = g_thread_create (dmp_thread_func,
1033                                     data,
1034                                     TRUE,
1035                                     &error);
1036   while (data->server == NULL || !g_dbus_server_is_active (data->server))
1037     g_thread_yield ();
1038
1039   for (n = 0; n < 5; n++)
1040     {
1041       GDBusConnection *c;
1042       GVariant *res;
1043       gint32 val;
1044
1045       error = NULL;
1046       c = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (data->server),
1047                                                   G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1048                                                   NULL, /* GDBusAuthObserver */
1049                                                   NULL, /* GCancellable */
1050                                                   &error);
1051       g_assert_no_error (error);
1052
1053       error = NULL;
1054       res = g_dbus_connection_call_sync (c,
1055                                          NULL,    /* bus name */
1056                                          "/dmp/test",
1057                                          "org.gtk.GDBus.DmpInterface",
1058                                          "AddPair",
1059                                          g_variant_new ("(ii)", 2, n),
1060                                          G_VARIANT_TYPE ("(i)"),
1061                                          G_DBUS_CALL_FLAGS_NONE,
1062                                          -1, /* timeout_msec */
1063                                          NULL, /* GCancellable */
1064                                          &error);
1065       g_assert_no_error (error);
1066       g_variant_get (res, "(i)", &val);
1067       g_assert_cmpint (val, ==, 2 + n);
1068       g_variant_unref (res);
1069       g_object_unref (c);
1070   }
1071
1072   g_main_loop_quit (data->loop);
1073   g_thread_join (service_thread);
1074   dmp_data_free (data);
1075 }
1076
1077 /* ---------------------------------------------------------------------------------------------------- */
1078
1079 static gboolean
1080 nonce_tcp_on_authorize_authenticated_peer (GDBusAuthObserver *observer,
1081                                            GIOStream         *stream,
1082                                            GCredentials      *credentials,
1083                                            gpointer           user_data)
1084 {
1085   PeerData *data = user_data;
1086   gboolean authorized;
1087
1088   data->num_connection_attempts++;
1089
1090   authorized = TRUE;
1091   if (!data->accept_connection)
1092     {
1093       authorized = FALSE;
1094       g_main_loop_quit (loop);
1095     }
1096
1097   return authorized;
1098 }
1099
1100 /* Runs in thread we created GDBusServer in (since we didn't pass G_DBUS_SERVER_FLAGS_RUN_IN_THREAD) */
1101 static void
1102 nonce_tcp_on_new_connection (GDBusServer *server,
1103                              GDBusConnection *connection,
1104                              gpointer user_data)
1105 {
1106   PeerData *data = user_data;
1107
1108   g_ptr_array_add (data->current_connections, g_object_ref (connection));
1109
1110   g_main_loop_quit (loop);
1111 }
1112
1113 static gpointer
1114 nonce_tcp_service_thread_func (gpointer user_data)
1115 {
1116   PeerData *data = user_data;
1117   GMainContext *service_context;
1118   GDBusAuthObserver *observer;
1119   GError *error;
1120
1121   service_context = g_main_context_new ();
1122   g_main_context_push_thread_default (service_context);
1123
1124   error = NULL;
1125   observer = g_dbus_auth_observer_new ();
1126   server = g_dbus_server_new_sync ("nonce-tcp:",
1127                                    G_DBUS_SERVER_FLAGS_NONE,
1128                                    test_guid,
1129                                    observer,
1130                                    NULL, /* cancellable */
1131                                    &error);
1132   g_assert_no_error (error);
1133
1134   g_signal_connect (server,
1135                     "new-connection",
1136                     G_CALLBACK (nonce_tcp_on_new_connection),
1137                     data);
1138   g_signal_connect (observer,
1139                     "authorize-authenticated-peer",
1140                     G_CALLBACK (nonce_tcp_on_authorize_authenticated_peer),
1141                     data);
1142   g_object_unref (observer);
1143
1144   g_dbus_server_start (server);
1145
1146   service_loop = g_main_loop_new (service_context, FALSE);
1147   g_main_loop_run (service_loop);
1148
1149   g_main_context_pop_thread_default (service_context);
1150
1151   g_main_loop_unref (service_loop);
1152   g_main_context_unref (service_context);
1153
1154   /* test code specifically unrefs the server - see below */
1155   g_assert (server == NULL);
1156
1157   return NULL;
1158 }
1159
1160 static void
1161 test_nonce_tcp (void)
1162 {
1163   PeerData data;
1164   GError *error;
1165   GThread *service_thread;
1166   GDBusConnection *c;
1167   gchar *s;
1168   gchar *nonce_file;
1169   gboolean res;
1170   const gchar *address;
1171
1172   memset (&data, '\0', sizeof (PeerData));
1173   data.current_connections = g_ptr_array_new_with_free_func (g_object_unref);
1174
1175   error = NULL;
1176   server = NULL;
1177   service_loop = NULL;
1178   service_thread = g_thread_create (nonce_tcp_service_thread_func,
1179                                     &data,
1180                                     TRUE,
1181                                     &error);
1182   while (service_loop == NULL)
1183     g_thread_yield ();
1184   g_assert (server != NULL);
1185
1186
1187   /* bring up a connection and accept it */
1188   data.accept_connection = TRUE;
1189   error = NULL;
1190   c = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
1191                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1192                                               NULL, /* GDBusAuthObserver */
1193                                               NULL, /* cancellable */
1194                                               &error);
1195   g_assert_no_error (error);
1196   g_assert (c != NULL);
1197   while (data.current_connections->len < 1)
1198     g_main_loop_run (loop);
1199   g_assert_cmpint (data.current_connections->len, ==, 1);
1200   g_assert_cmpint (data.num_connection_attempts, ==, 1);
1201   g_assert (g_dbus_connection_get_unique_name (c) == NULL);
1202   g_assert_cmpstr (g_dbus_connection_get_guid (c), ==, test_guid);
1203   g_object_unref (c);
1204
1205   /* now, try to subvert the nonce file (this assumes noncefile is the last key/value pair)
1206    */
1207
1208   address = g_dbus_server_get_client_address (server);
1209
1210   s = strstr (address, "noncefile=");
1211   g_assert (s != NULL);
1212   s += sizeof "noncefile=" - 1;
1213   nonce_file = g_strdup (s);
1214
1215   /* First try invalid data in the nonce file - this will actually
1216    * make the client send this and the server will reject it. The way
1217    * it works is that if the nonce doesn't match, the server will
1218    * simply close the connection. So, from the client point of view,
1219    * we can see a variety of errors.
1220    */
1221   error = NULL;
1222   res = g_file_set_contents (nonce_file,
1223                              "0123456789012345",
1224                              -1,
1225                              &error);
1226   g_assert_no_error (error);
1227   g_assert (res);
1228   c = g_dbus_connection_new_for_address_sync (address,
1229                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1230                                               NULL, /* GDBusAuthObserver */
1231                                               NULL, /* cancellable */
1232                                               &error);
1233   _g_assert_error_domain (error, G_IO_ERROR);
1234   g_assert (c == NULL);
1235
1236   /* Then try with a nonce-file of incorrect length - this will make
1237    * the client complain - we won't even try connecting to the server
1238    * for this
1239    */
1240   error = NULL;
1241   res = g_file_set_contents (nonce_file,
1242                              "0123456789012345_",
1243                              -1,
1244                              &error);
1245   g_assert_no_error (error);
1246   g_assert (res);
1247   c = g_dbus_connection_new_for_address_sync (address,
1248                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1249                                               NULL, /* GDBusAuthObserver */
1250                                               NULL, /* cancellable */
1251                                               &error);
1252   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
1253   g_assert (c == NULL);
1254
1255   /* Finally try with no nonce-file at all */
1256   g_assert_cmpint (g_unlink (nonce_file), ==, 0);
1257   error = NULL;
1258   c = g_dbus_connection_new_for_address_sync (address,
1259                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1260                                               NULL, /* GDBusAuthObserver */
1261                                               NULL, /* cancellable */
1262                                               &error);
1263   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
1264   g_assert (c == NULL);
1265
1266   g_free (nonce_file);
1267
1268   g_dbus_server_stop (server);
1269   g_object_unref (server);
1270   server = NULL;
1271
1272   g_main_loop_quit (service_loop);
1273   g_thread_join (service_thread);
1274 }
1275
1276 static void
1277 test_credentials (void)
1278 {
1279   GCredentials *c1, *c2;
1280   GError *error;
1281   gchar *desc;
1282
1283   c1 = g_credentials_new ();
1284   c2 = g_credentials_new ();
1285
1286   error = NULL;
1287   if (g_credentials_set_unix_user (c2, getuid (), &error))
1288     g_assert_no_error (error);
1289
1290   g_clear_error (&error);
1291   g_assert (g_credentials_is_same_user (c1, c2, &error));
1292   g_assert_no_error (error);
1293
1294   desc = g_credentials_to_string (c1);
1295   g_assert (desc != NULL);
1296   g_free (desc);
1297
1298   g_object_unref (c1);
1299   g_object_unref (c2);
1300 }
1301
1302 /* ---------------------------------------------------------------------------------------------------- */
1303
1304 #ifdef G_OS_UNIX
1305
1306 /* Chosen to be big enough to overflow the socket buffer */
1307 #define OVERFLOW_NUM_SIGNALS 5000
1308 #define OVERFLOW_TIMEOUT_SEC 10
1309
1310 static GDBusMessageFilterResult
1311 overflow_filter_func (GDBusConnection *connection,
1312                       GDBusMessage    *message,
1313                       gboolean         incoming,
1314                       gpointer         user_data)
1315 {
1316   volatile gint *counter = user_data;
1317   *counter += 1;
1318   return G_DBUS_MESSAGE_FILTER_RESULT_NO_EFFECT;
1319 }
1320
1321 static gboolean
1322 overflow_on_500ms_later_func (gpointer user_data)
1323 {
1324   g_main_loop_quit (loop);
1325   return FALSE; /* don't keep the idle */
1326 }
1327
1328 static void
1329 test_overflow (void)
1330 {
1331   gint sv[2];
1332   gint n;
1333   GSocket *socket;
1334   GSocketConnection *socket_connection;
1335   GDBusConnection *producer, *consumer;
1336   GError *error;
1337   GTimer *timer;
1338   volatile gint n_messages_received;
1339   volatile gint n_messages_sent;
1340
1341   g_assert_cmpint (socketpair (AF_UNIX, SOCK_STREAM, 0, sv), ==, 0);
1342
1343   error = NULL;
1344   socket = g_socket_new_from_fd (sv[0], &error);
1345   g_assert_no_error (error);
1346   socket_connection = g_socket_connection_factory_create_connection (socket);
1347   g_assert (socket_connection != NULL);
1348   g_object_unref (socket);
1349   producer = g_dbus_connection_new_sync (G_IO_STREAM (socket_connection),
1350                                          NULL, /* guid */
1351                                          G_DBUS_CONNECTION_FLAGS_NONE,
1352                                          NULL, /* GDBusAuthObserver */
1353                                          NULL, /* GCancellable */
1354                                          &error);
1355   g_dbus_connection_set_exit_on_close (producer, TRUE);
1356   g_assert_no_error (error);
1357   g_object_unref (socket_connection);
1358   n_messages_sent = 0;
1359   g_dbus_connection_add_filter (producer, overflow_filter_func, (gpointer) &n_messages_sent, NULL);
1360
1361   /* send enough data that we get an EAGAIN */
1362   for (n = 0; n < OVERFLOW_NUM_SIGNALS; n++)
1363     {
1364       error = NULL;
1365       g_dbus_connection_emit_signal (producer,
1366                                      NULL, /* destination */
1367                                      "/org/foo/Object",
1368                                      "org.foo.Interface",
1369                                      "Member",
1370                                      g_variant_new ("(s)", "a string"),
1371                                      &error);
1372       g_assert_no_error (error);
1373     }
1374
1375   /* sleep for 0.5 sec (to allow the GDBus IO thread to fill up the
1376    * kernel buffers) and verify that n_messages_sent <
1377    * OVERFLOW_NUM_SIGNALS
1378    *
1379    * This is to verify that not all the submitted messages have been
1380    * sent to the underlying transport.
1381    */
1382   g_timeout_add (500, overflow_on_500ms_later_func, NULL);
1383   g_main_loop_run (loop);
1384   g_assert_cmpint (n_messages_sent, <, OVERFLOW_NUM_SIGNALS);
1385
1386   /* now suck it all out as a client, and add it up */
1387   socket = g_socket_new_from_fd (sv[1], &error);
1388   g_assert_no_error (error);
1389   socket_connection = g_socket_connection_factory_create_connection (socket);
1390   g_assert (socket_connection != NULL);
1391   g_object_unref (socket);
1392   consumer = g_dbus_connection_new_sync (G_IO_STREAM (socket_connection),
1393                                          NULL, /* guid */
1394                                          G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING,
1395                                          NULL, /* GDBusAuthObserver */
1396                                          NULL, /* GCancellable */
1397                                          &error);
1398   g_assert_no_error (error);
1399   g_object_unref (socket_connection);
1400   n_messages_received = 0;
1401   g_dbus_connection_add_filter (consumer, overflow_filter_func, (gpointer) &n_messages_received, NULL);
1402   g_dbus_connection_start_message_processing (consumer);
1403
1404   timer = g_timer_new ();
1405   g_timer_start (timer);
1406
1407   while (n_messages_received < OVERFLOW_NUM_SIGNALS && g_timer_elapsed (timer, NULL) < OVERFLOW_TIMEOUT_SEC)
1408       g_main_context_iteration (NULL, FALSE);
1409
1410   g_assert_cmpint (n_messages_sent, ==, OVERFLOW_NUM_SIGNALS);
1411   g_assert_cmpint (n_messages_received, ==, OVERFLOW_NUM_SIGNALS);
1412
1413   g_timer_destroy (timer);
1414   g_object_unref (consumer);
1415   g_object_unref (producer);
1416 }
1417 #else
1418 static void
1419 test_overflow (void)
1420 {
1421   /* TODO: test this with e.g. GWin32InputStream/GWin32OutputStream */
1422 }
1423 #endif
1424
1425 /* ---------------------------------------------------------------------------------------------------- */
1426
1427 int
1428 main (int   argc,
1429       char *argv[])
1430 {
1431   gint ret;
1432   GDBusNodeInfo *introspection_data = NULL;
1433
1434   g_type_init ();
1435   g_thread_init (NULL);
1436   g_test_init (&argc, &argv, NULL);
1437
1438   introspection_data = g_dbus_node_info_new_for_xml (test_interface_introspection_xml, NULL);
1439   g_assert (introspection_data != NULL);
1440   test_interface_introspection_data = introspection_data->interfaces[0];
1441
1442   test_guid = g_dbus_generate_guid ();
1443
1444   /* all the tests rely on a shared main loop */
1445   loop = g_main_loop_new (NULL, FALSE);
1446
1447   g_test_add_func ("/gdbus/peer-to-peer", test_peer);
1448   g_test_add_func ("/gdbus/delayed-message-processing", delayed_message_processing);
1449   g_test_add_func ("/gdbus/nonce-tcp", test_nonce_tcp);
1450   g_test_add_func ("/gdbus/credentials", test_credentials);
1451   g_test_add_func ("/gdbus/overflow", test_overflow);
1452
1453   ret = g_test_run();
1454
1455   g_main_loop_unref (loop);
1456   g_free (test_guid);
1457   g_dbus_node_info_unref (introspection_data);
1458
1459   return ret;
1460 }