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 (fd_list);
 184       g_object_unref (invocation);
 185
 186       error = NULL;
 187       g_dbus_connection_send_message (connection,
 188                                       reply,
 189                                       G_DBUS_SEND_MESSAGE_FLAGS_NONE,
 190                                       NULL, /* out_serial */
 191                                       &error);
 192       g_assert_no_error (error);
 193       g_object_unref (reply);
 194 #else
 195       g_dbus_method_invocation_return_dbus_error (invocation,
 196                                                   "org.gtk.GDBus.NotOnUnix",
 197                                                   "Your OS does not support file descriptor passing");
 198 #endif
 199     }
 200   else
 201     {
 202       g_assert_not_reached ();
 203     }
 204 }
 205
 206 static GVariant *
 207 test_interface_get_property (GDBusConnection  *connection,
 208                              const gchar      *sender,
 209                              const gchar      *object_path,
 210                              const gchar      *interface_name,
 211                              const gchar      *property_name,
 212                              GError          **error,
 213                              gpointer          user_data)
 214 {
 215   g_assert_cmpstr (object_path, ==, "/org/gtk/GDBus/PeerTestObject");
 216   g_assert_cmpstr (interface_name, ==, "org.gtk.GDBus.PeerTestInterface");
 217   g_assert_cmpstr (property_name, ==, "PeerProperty");
 218
 219   return g_variant_new_string ("ThePropertyValue");
 220 }
 221
 222
 223 static const GDBusInterfaceVTable test_interface_vtable =
 224 {
 225   test_interface_method_call,
 226   test_interface_get_property,
 227   NULL  /* set_property */
 228 };
 229
 230 static void
 231 on_proxy_signal_received (GDBusProxy *proxy,
 232                           gchar      *sender_name,
 233                           gchar      *signal_name,
 234                           GVariant   *parameters,
 235                           gpointer    user_data)
 236 {
 237   PeerData *data = user_data;
 238
 239   data->signal_received = TRUE;
 240
 241   g_assert (sender_name == NULL);
 242   g_assert_cmpstr (signal_name, ==, "PeerSignal");
 243   g_main_loop_quit (loop);
 244 }
 245
 246 static void
 247 on_proxy_signal_received_with_name_set (GDBusProxy *proxy,
 248                                         gchar      *sender_name,
 249                                         gchar      *signal_name,
 250                                         GVariant   *parameters,
 251                                         gpointer    user_data)
 252 {
 253   PeerData *data = user_data;
 254
 255   data->signal_received = TRUE;
 256
 257   g_assert_cmpstr (sender_name, ==, ":1.42");
 258   g_assert_cmpstr (signal_name, ==, "PeerSignalWithNameSet");
 259   g_main_loop_quit (loop);
 260 }
 261
 262 /* ---------------------------------------------------------------------------------------------------- */
 263
 264 static gboolean
 265 on_authorize_authenticated_peer (GDBusAuthObserver *observer,
 266                                  GIOStream         *stream,
 267                                  GCredentials      *credentials,
 268                                  gpointer           user_data)
 269 {
 270   PeerData *data = user_data;
 271   gboolean authorized;
 272
 273   data->num_connection_attempts++;
 274
 275   authorized = TRUE;
 276   if (!data->accept_connection)
 277     {
 278       authorized = FALSE;
 279       g_main_loop_quit (loop);
 280     }
 281
 282   return authorized;
 283 }
 284
 285 /* Runs in thread we created GDBusServer in (since we didn't pass G_DBUS_SERVER_FLAGS_RUN_IN_THREAD) */
 286 static void
 287 on_new_connection (GDBusServer *server,
 288                    GDBusConnection *connection,
 289                    gpointer user_data)
 290 {
 291   PeerData *data = user_data;
 292   GError *error;
 293   guint reg_id;
 294
 295   //g_print ("Client connected.\n"
 296   //         "Negotiated capabilities: unix-fd-passing=%d\n",
 297   //         g_dbus_connection_get_capabilities (connection) & G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING);
 298
 299   g_ptr_array_add (data->current_connections, g_object_ref (connection));
 300
 301   /* export object on the newly established connection */
 302   error = NULL;
 303   reg_id = g_dbus_connection_register_object (connection,
 304                                               "/org/gtk/GDBus/PeerTestObject",
 305                                               test_interface_introspection_data,
 306                                               &test_interface_vtable,
 307                                               data,
 308                                               NULL, /* GDestroyNotify for data */
 309                                               &error);
 310   g_assert_no_error (error);
 311   g_assert (reg_id > 0);
 312
 313   g_main_loop_quit (loop);
 314 }
 315
 316 static gpointer
 317 service_thread_func (gpointer user_data)
 318 {
 319   PeerData *data = user_data;
 320   GMainContext *service_context;
 321   GDBusAuthObserver *observer;
 322   GError *error;
 323
 324   service_context = g_main_context_new ();
 325   g_main_context_push_thread_default (service_context);
 326
 327   error = NULL;
 328   observer = g_dbus_auth_observer_new ();
 329   server = g_dbus_server_new_sync (is_unix ? "unix:tmpdir=/tmp/gdbus-test-" : "nonce-tcp:",
 330                                    G_DBUS_SERVER_FLAGS_NONE,
 331                                    test_guid,
 332                                    observer,
 333                                    NULL, /* cancellable */
 334                                    &error);
 335   g_assert_no_error (error);
 336
 337   g_signal_connect (server,
 338                     "new-connection",
 339                     G_CALLBACK (on_new_connection),
 340                     data);
 341   g_signal_connect (observer,
 342                     "authorize-authenticated-peer",
 343                     G_CALLBACK (on_authorize_authenticated_peer),
 344                     data);
 345   g_object_unref (observer);
 346
 347   g_dbus_server_start (server);
 348
 349   service_loop = g_main_loop_new (service_context, FALSE);
 350   g_main_loop_run (service_loop);
 351
 352   g_main_context_pop_thread_default (service_context);
 353
 354   g_main_loop_unref (service_loop);
 355   g_main_context_unref (service_context);
 356
 357   /* test code specifically unrefs the server - see below */
 358   g_assert (server == NULL);
 359
 360   return NULL;
 361 }
 362
 363 #if 0
 364 static gboolean
 365 on_incoming_connection (GSocketService     *service,
 366                         GSocketConnection  *socket_connection,
 367                         GObject            *source_object,
 368                         gpointer           user_data)
 369 {
 370   PeerData *data = user_data;
 371
 372   if (data->accept_connection)
 373     {
 374       GError *error;
 375       guint reg_id;
 376       GDBusConnection *connection;
 377
 378       error = NULL;
 379       connection = g_dbus_connection_new_sync (G_IO_STREAM (socket_connection),
 380                                                test_guid,
 381                                                G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER,
 382                                                NULL, /* cancellable */
 383                                                &error);
 384       g_assert_no_error (error);
 385
 386       g_ptr_array_add (data->current_connections, connection);
 387
 388       /* export object on the newly established connection */
 389       error = NULL;
 390       reg_id = g_dbus_connection_register_object (connection,
 391                                                   "/org/gtk/GDBus/PeerTestObject",
 392                                                   &test_interface_introspection_data,
 393                                                   &test_interface_vtable,
 394                                                   data,
 395                                                   NULL, /* GDestroyNotify for data */
 396                                                   &error);
 397       g_assert_no_error (error);
 398       g_assert (reg_id > 0);
 399
 400     }
 401   else
 402     {
 403       /* don't do anything */
 404     }
 405
 406   data->num_connection_attempts++;
 407
 408   g_main_loop_quit (loop);
 409
 410   /* stops other signal handlers from being invoked */
 411   return TRUE;
 412 }
 413
 414 static gpointer
 415 service_thread_func (gpointer data)
 416 {
 417   GMainContext *service_context;
 418   gchar *socket_path;
 419   GSocketAddress *address;
 420   GError *error;
 421
 422   service_context = g_main_context_new ();
 423   g_main_context_push_thread_default (service_context);
 424
 425   socket_path = g_strdup_printf ("/tmp/gdbus-test-pid-%d", getpid ());
 426   address = g_unix_socket_address_new (socket_path);
 427
 428   service = g_socket_service_new ();
 429   error = NULL;
 430   g_socket_listener_add_address (G_SOCKET_LISTENER (service),
 431                                  address,
 432                                  G_SOCKET_TYPE_STREAM,
 433                                  G_SOCKET_PROTOCOL_DEFAULT,
 434                                  NULL, /* source_object */
 435                                  NULL, /* effective_address */
 436                                  &error);
 437   g_assert_no_error (error);
 438   g_signal_connect (service,
 439                     "incoming",
 440                     G_CALLBACK (on_incoming_connection),
 441                     data);
 442   g_socket_service_start (service);
 443
 444   service_loop = g_main_loop_new (service_context, FALSE);
 445   g_main_loop_run (service_loop);
 446
 447   g_main_context_pop_thread_default (service_context);
 448
 449   g_main_loop_unref (service_loop);
 450   g_main_context_unref (service_context);
 451
 452   g_object_unref (address);
 453   g_free (socket_path);
 454   return NULL;
 455 }
 456 #endif
 457
 458 /* ---------------------------------------------------------------------------------------------------- */
 459
 460 #if 0
 461 static gboolean
 462 check_connection (gpointer user_data)
 463 {
 464   PeerData *data = user_data;
 465   guint n;
 466
 467   for (n = 0; n < data->current_connections->len; n++)
 468     {
 469       GDBusConnection *c;
 470       GIOStream *stream;
 471
 472       c = G_DBUS_CONNECTION (data->current_connections->pdata[n]);
 473       stream = g_dbus_connection_get_stream (c);
 474
 475       g_debug ("In check_connection for %d: connection %p, stream %p", n, c, stream);
 476       g_debug ("closed = %d", g_io_stream_is_closed (stream));
 477
 478       GSocket *socket;
 479       socket = g_socket_connection_get_socket (G_SOCKET_CONNECTION (stream));
 480       g_debug ("socket_closed = %d", g_socket_is_closed (socket));
 481       g_debug ("socket_condition_check = %d", g_socket_condition_check (socket, G_IO_IN|G_IO_OUT|G_IO_ERR|G_IO_HUP));
 482
 483       gchar buf[128];
 484       GError *error;
 485       gssize num_read;
 486       error = NULL;
 487       num_read = g_input_stream_read (g_io_stream_get_input_stream (stream),
 488                                       buf,
 489                                       128,
 490                                       NULL,
 491                                       &error);
 492       if (num_read < 0)
 493         {
 494           g_debug ("error: %s", error->message);
 495           g_error_free (error);
 496         }
 497       else
 498         {
 499           g_debug ("no error, read %d bytes", (gint) num_read);
 500         }
 501     }
 502
 503   return FALSE;
 504 }
 505
 506 static gboolean
 507 on_do_disconnect_in_idle (gpointer data)
 508 {
 509   GDBusConnection *c = G_DBUS_CONNECTION (data);
 510   g_debug ("GDC %p has ref_count %d", c, G_OBJECT (c)->ref_count);
 511   g_dbus_connection_disconnect (c);
 512   g_object_unref (c);
 513   return FALSE;
 514 }
 515 #endif
 516
 517 #ifdef G_OS_UNIX
 518 static gchar *
 519 read_all_from_fd (gint fd, gsize *out_len, GError **error)
 520 {
 521   GString *str;
 522   gchar buf[64];
 523   gssize num_read;
 524
 525   str = g_string_new (NULL);
 526
 527   do
 528     {
 529       num_read = read (fd, buf, sizeof (buf));
 530       if (num_read == -1)
 531         {
 532           if (errno == EAGAIN || errno == EWOULDBLOCK)
 533             continue;
 534           g_set_error (error,
 535                        G_IO_ERROR,
 536                        g_io_error_from_errno (errno),
 537                        "Failed reading %d bytes into offset %d: %s",
 538                        (gint) sizeof (buf),
 539                        (gint) str->len,
 540                        strerror (errno));
 541           goto error;
 542         }
 543       else if (num_read > 0)
 544         {
 545           g_string_append_len (str, buf, num_read);
 546         }
 547       else if (num_read == 0)
 548         {
 549           break;
 550         }
 551     }
 552   while (TRUE);
 553
 554   if (out_len != NULL)
 555     *out_len = str->len;
 556   return g_string_free (str, FALSE);
 557
 558  error:
 559   if (out_len != NULL)
 560     out_len = 0;
 561   g_string_free (str, TRUE);
 562   return NULL;
 563 }
 564 #endif
 565
 566 static void
 567 test_peer (void)
 568 {
 569   GDBusConnection *c;
 570   GDBusConnection *c2;
 571   GDBusProxy *proxy;
 572   GError *error;
 573   PeerData data;
 574   GVariant *value;
 575   GVariant *result;
 576   const gchar *s;
 577   GThread *service_thread;
 578   gulong signal_handler_id;
 579
 580   memset (&data, '\0', sizeof (PeerData));
 581   data.current_connections = g_ptr_array_new_with_free_func (g_object_unref);
 582
 583   /* first try to connect when there is no server */
 584   error = NULL;
 585   c = g_dbus_connection_new_for_address_sync (is_unix ? "unix:path=/tmp/gdbus-test-does-not-exist-pid" :
 586                                               /* NOTE: Even if something is listening on port 12345 the connection
 587                                                * will fail because the nonce file doesn't exist */
 588                                               "nonce-tcp:host=localhost,port=12345,noncefile=this-does-not-exist-gdbus",
 589                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 590                                               NULL, /* GDBusAuthObserver */
 591                                               NULL, /* cancellable */
 592                                               &error);
 593   _g_assert_error_domain (error, G_IO_ERROR);
 594   g_assert (!g_dbus_error_is_remote_error (error));
 595   g_clear_error (&error);
 596   g_assert (c == NULL);
 597
 598   /* bring up a server - we run the server in a different thread to avoid deadlocks */
 599   error = NULL;
 600   service_thread = g_thread_create (service_thread_func,
 601                                     &data,
 602                                     TRUE,
 603                                     &error);
 604   while (service_loop == NULL)
 605     g_thread_yield ();
 606   g_assert (server != NULL);
 607
 608   /* bring up a connection and accept it */
 609   data.accept_connection = TRUE;
 610   error = NULL;
 611   c = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
 612                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 613                                               NULL, /* GDBusAuthObserver */
 614                                               NULL, /* cancellable */
 615                                               &error);
 616   g_assert_no_error (error);
 617   g_assert (c != NULL);
 618   while (data.current_connections->len < 1)
 619     g_main_loop_run (loop);
 620   g_assert_cmpint (data.current_connections->len, ==, 1);
 621   g_assert_cmpint (data.num_connection_attempts, ==, 1);
 622   g_assert (g_dbus_connection_get_unique_name (c) == NULL);
 623   g_assert_cmpstr (g_dbus_connection_get_guid (c), ==, test_guid);
 624
 625   /* check that we create a proxy, read properties, receive signals and invoke
 626    * the HelloPeer() method. Since the server runs in another thread it's fine
 627    * to use synchronous blocking API here.
 628    */
 629   error = NULL;
 630   proxy = g_dbus_proxy_new_sync (c,
 631                                  G_DBUS_PROXY_FLAGS_NONE,
 632                                  NULL,
 633                                  NULL, /* bus_name */
 634                                  "/org/gtk/GDBus/PeerTestObject",
 635                                  "org.gtk.GDBus.PeerTestInterface",
 636                                  NULL, /* GCancellable */
 637                                  &error);
 638   g_assert_no_error (error);
 639   g_assert (proxy != NULL);
 640   error = NULL;
 641   value = g_dbus_proxy_get_cached_property (proxy, "PeerProperty");
 642   g_assert_cmpstr (g_variant_get_string (value, NULL), ==, "ThePropertyValue");
 643
 644   /* try invoking a method */
 645   error = NULL;
 646   result = g_dbus_proxy_call_sync (proxy,
 647                                    "HelloPeer",
 648                                    g_variant_new ("(s)", "Hey Peer!"),
 649                                    G_DBUS_CALL_FLAGS_NONE,
 650                                    -1,
 651                                    NULL,  /* GCancellable */
 652                                    &error);
 653   g_assert_no_error (error);
 654   g_variant_get (result, "(&s)", &s);
 655   g_assert_cmpstr (s, ==, "You greeted me with 'Hey Peer!'.");
 656   g_variant_unref (result);
 657   g_assert_cmpint (data.num_method_calls, ==, 1);
 658
 659   /* make the other peer emit a signal - catch it */
 660   signal_handler_id = g_signal_connect (proxy,
 661                                         "g-signal",
 662                                         G_CALLBACK (on_proxy_signal_received),
 663                                         &data);
 664   g_assert (!data.signal_received);
 665   g_dbus_proxy_call (proxy,
 666                      "EmitSignal",
 667                      NULL,  /* no arguments */
 668                      G_DBUS_CALL_FLAGS_NONE,
 669                      -1,
 670                      NULL,  /* GCancellable */
 671                      NULL,  /* GAsyncReadyCallback - we don't care about the result */
 672                      NULL); /* user_data */
 673   g_main_loop_run (loop);
 674   g_assert (data.signal_received);
 675   g_assert_cmpint (data.num_method_calls, ==, 2);
 676   g_signal_handler_disconnect (proxy, signal_handler_id);
 677
 678   /* Also ensure that messages with the sender header-field set gets
 679    * delivered to the proxy - note that this doesn't really make sense
 680    * e.g. names are meaning-less in a peer-to-peer case... but we
 681    * support it because it makes sense in certain bridging
 682    * applications - see e.g. #623815.
 683    */
 684   signal_handler_id = g_signal_connect (proxy,
 685                                         "g-signal",
 686                                         G_CALLBACK (on_proxy_signal_received_with_name_set),
 687                                         &data);
 688   data.signal_received = FALSE;
 689   g_dbus_proxy_call (proxy,
 690                      "EmitSignalWithNameSet",
 691                      NULL,  /* no arguments */
 692                      G_DBUS_CALL_FLAGS_NONE,
 693                      -1,
 694                      NULL,  /* GCancellable */
 695                      NULL,  /* GAsyncReadyCallback - we don't care about the result */
 696                      NULL); /* user_data */
 697   g_main_loop_run (loop);
 698   g_assert (data.signal_received);
 699   g_assert_cmpint (data.num_method_calls, ==, 3);
 700   g_signal_handler_disconnect (proxy, signal_handler_id);
 701
 702   /* check for UNIX fd passing */
 703 #ifdef G_OS_UNIX
 704   {
 705     GDBusMessage *method_call_message;
 706     GDBusMessage *method_reply_message;
 707     GUnixFDList *fd_list;
 708     gint fd;
 709     gchar *buf;
 710     gsize len;
 711     gchar *buf2;
 712     gsize len2;
 713
 714     method_call_message = g_dbus_message_new_method_call (NULL, /* name */
 715                                                           "/org/gtk/GDBus/PeerTestObject",
 716                                                           "org.gtk.GDBus.PeerTestInterface",
 717                                                           "OpenFile");
 718     g_dbus_message_set_body (method_call_message, g_variant_new ("(s)", "/etc/hosts"));
 719     error = NULL;
 720     method_reply_message = g_dbus_connection_send_message_with_reply_sync (c,
 721                                                                            method_call_message,
 722                                                                            G_DBUS_SEND_MESSAGE_FLAGS_NONE,
 723                                                                            -1,
 724                                                                            NULL, /* out_serial */
 725                                                                            NULL, /* cancellable */
 726                                                                            &error);
 727     g_assert_no_error (error);
 728     g_assert (g_dbus_message_get_message_type (method_reply_message) == G_DBUS_MESSAGE_TYPE_METHOD_RETURN);
 729     fd_list = g_dbus_message_get_unix_fd_list (method_reply_message);
 730     g_assert (fd_list != NULL);
 731     g_assert_cmpint (g_unix_fd_list_get_length (fd_list), ==, 1);
 732     error = NULL;
 733     fd = g_unix_fd_list_get (fd_list, 0, &error);
 734     g_assert_no_error (error);
 735     g_object_unref (method_call_message);
 736     g_object_unref (method_reply_message);
 737
 738     error = NULL;
 739     len = 0;
 740     buf = read_all_from_fd (fd, &len, &error);
 741     g_assert_no_error (error);
 742     g_assert (buf != NULL);
 743     close (fd);
 744
 745     error = NULL;
 746     g_file_get_contents ("/etc/hosts",
 747                          &buf2,
 748                          &len2,
 749                          &error);
 750     g_assert_no_error (error);
 751     g_assert_cmpint (len, ==, len2);
 752     g_assert (memcmp (buf, buf2, len) == 0);
 753     g_free (buf2);
 754     g_free (buf);
 755   }
 756 #else
 757   error = NULL;
 758   result = g_dbus_proxy_call_sync (proxy,
 759                                    "OpenFile",
 760                                    g_variant_new ("(s)", "boo"),
 761                                    G_DBUS_CALL_FLAGS_NONE,
 762                                    -1,
 763                                    NULL,  /* GCancellable */
 764                                    &error);
 765   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_DBUS_ERROR);
 766   g_assert (result == NULL);
 767   g_error_free (error);
 768 #endif /* G_OS_UNIX */
 769
 770   /* Check that g_socket_get_credentials() work - this really should
 771    * be in a GSocket-specific test suite but no such test suite exists
 772    * right now.
 773    */
 774   {
 775     GSocket *socket;
 776     GCredentials *credentials;
 777     socket = g_socket_connection_get_socket (G_SOCKET_CONNECTION (g_dbus_connection_get_stream (c)));
 778     g_assert (G_IS_SOCKET (socket));
 779     error = NULL;
 780     credentials = g_socket_get_credentials (socket, &error);
 781 #ifdef __linux__
 782     {
 783       struct ucred *native_creds;
 784       g_assert_no_error (error);
 785       g_assert (G_IS_CREDENTIALS (credentials));
 786       native_creds = g_credentials_get_native (credentials, G_CREDENTIALS_TYPE_LINUX_UCRED);
 787       g_assert (native_creds != NULL);
 788       g_assert (native_creds->uid == getuid ());
 789       g_assert (native_creds->gid == getgid ());
 790       g_assert (native_creds->pid == getpid ());
 791     }
 792     g_object_unref (credentials);
 793 #else
 794     g_assert_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED);
 795     g_assert (credentials == NULL);
 796 #endif
 797   }
 798
 799
 800   /* bring up a connection - don't accept it - this should fail
 801    */
 802   data.accept_connection = FALSE;
 803   error = NULL;
 804   c2 = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
 805                                                G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 806                                                NULL, /* GDBusAuthObserver */
 807                                                NULL, /* cancellable */
 808                                                &error);
 809   _g_assert_error_domain (error, G_IO_ERROR);
 810   g_error_free (error);
 811   g_assert (c2 == NULL);
 812
 813 #if 0
 814   /* TODO: THIS TEST DOESN'T WORK YET */
 815
 816   /* bring up a connection - accept it.. then disconnect from the client side - check
 817    * that the server side gets the disconnect signal.
 818    */
 819   error = NULL;
 820   data.accept_connection = TRUE;
 821   c2 = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
 822                                                G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
 823                                                NULL, /* GDBusAuthObserver */
 824                                                NULL, /* cancellable */
 825                                                &error);
 826   g_assert_no_error (error);
 827   g_assert (c2 != NULL);
 828   g_assert (!g_dbus_connection_get_is_disconnected (c2));
 829   while (data.num_connection_attempts < 3)
 830     g_main_loop_run (loop);
 831   g_assert_cmpint (data.current_connections->len, ==, 2);
 832   g_assert_cmpint (data.num_connection_attempts, ==, 3);
 833   g_assert (!g_dbus_connection_get_is_disconnected (G_DBUS_CONNECTION (data.current_connections->pdata[1])));
 834   g_idle_add (on_do_disconnect_in_idle, c2);
 835   g_debug ("==================================================");
 836   g_debug ("==================================================");
 837   g_debug ("==================================================");
 838   g_debug ("waiting for disconnect on connection %p, stream %p",
 839            data.current_connections->pdata[1],
 840            g_dbus_connection_get_stream (data.current_connections->pdata[1]));
 841
 842   g_timeout_add (2000, check_connection, &data);
 843   //_g_assert_signal_received (G_DBUS_CONNECTION (data.current_connections->pdata[1]), "closed");
 844   g_main_loop_run (loop);
 845   g_assert (g_dbus_connection_get_is_disconnected (G_DBUS_CONNECTION (data.current_connections->pdata[1])));
 846   g_ptr_array_set_size (data.current_connections, 1); /* remove disconnected connection object */
 847 #endif
 848
 849   /* unref the server and stop listening for new connections
 850    *
 851    * This won't bring down the established connections - check that c is still connected
 852    * by invoking a method
 853    */
 854   //g_socket_service_stop (service);
 855   //g_object_unref (service);
 856   g_dbus_server_stop (server);
 857   g_object_unref (server);
 858   server = NULL;
 859
 860   error = NULL;
 861   result = g_dbus_proxy_call_sync (proxy,
 862                                    "HelloPeer",
 863                                    g_variant_new ("(s)", "Hey Again Peer!"),
 864                                    G_DBUS_CALL_FLAGS_NONE,
 865                                    -1,
 866                                    NULL,  /* GCancellable */
 867                                    &error);
 868   g_assert_no_error (error);
 869   g_variant_get (result, "(&s)", &s);
 870   g_assert_cmpstr (s, ==, "You greeted me with 'Hey Again Peer!'.");
 871   g_variant_unref (result);
 872   g_assert_cmpint (data.num_method_calls, ==, 5);
 873
 874 #if 0
 875   /* TODO: THIS TEST DOESN'T WORK YET */
 876
 877   /* now disconnect from the server side - check that the client side gets the signal */
 878   g_assert_cmpint (data.current_connections->len, ==, 1);
 879   g_assert (G_DBUS_CONNECTION (data.current_connections->pdata[0]) != c);
 880   g_dbus_connection_disconnect (G_DBUS_CONNECTION (data.current_connections->pdata[0]));
 881   if (!g_dbus_connection_get_is_disconnected (c))
 882     _g_assert_signal_received (c, "closed");
 883   g_assert (g_dbus_connection_get_is_disconnected (c));
 884 #endif
 885
 886   g_object_unref (c);
 887   g_ptr_array_unref (data.current_connections);
 888   g_object_unref (proxy);
 889
 890   g_main_loop_quit (service_loop);
 891   g_thread_join (service_thread);
 892 }
 893
 894 /* ---------------------------------------------------------------------------------------------------- */
 895
 896 typedef struct
 897 {
 898   GDBusServer *server;
 899   GMainContext *context;
 900   GMainLoop *loop;
 901
 902   GList *connections;
 903 } DmpData;
 904
 905 static void
 906 dmp_data_free (DmpData *data)
 907 {
 908   g_main_loop_unref (data->loop);
 909   g_main_context_unref (data->context);
 910   g_object_unref (data->server);
 911   g_list_foreach (data->connections, (GFunc) g_object_unref, NULL);
 912   g_list_free (data->connections);
 913   g_free (data);
 914 }
 915
 916 static void
 917 dmp_on_method_call (GDBusConnection       *connection,
 918                     const gchar           *sender,
 919                     const gchar           *object_path,
 920                     const gchar           *interface_name,
 921                     const gchar           *method_name,
 922                     GVariant              *parameters,
 923                     GDBusMethodInvocation *invocation,
 924                     gpointer               user_data)
 925 {
 926   //DmpData *data = user_data;
 927   gint32 first;
 928   gint32 second;
 929   g_variant_get (parameters,
 930                  "(ii)",
 931                  &first,
 932                  &second);
 933   g_dbus_method_invocation_return_value (invocation,
 934                                          g_variant_new ("(i)", first + second));
 935 }
 936
 937 static const GDBusInterfaceVTable dmp_interface_vtable =
 938 {
 939   dmp_on_method_call,
 940   NULL,  /* get_property */
 941   NULL   /* set_property */
 942 };
 943
 944
 945 /* Runs in thread we created GDBusServer in (since we didn't pass G_DBUS_SERVER_FLAGS_RUN_IN_THREAD) */
 946 static void
 947 dmp_on_new_connection (GDBusServer     *server,
 948                        GDBusConnection *connection,
 949                        gpointer         user_data)
 950 {
 951   DmpData *data = user_data;
 952   GDBusNodeInfo *node;
 953   GError *error;
 954
 955   /* accept the connection */
 956   data->connections = g_list_prepend (data->connections, g_object_ref (connection));
 957
 958   error = NULL;
 959   node = g_dbus_node_info_new_for_xml ("<node>"
 960                                        "  <interface name='org.gtk.GDBus.DmpInterface'>"
 961                                        "    <method name='AddPair'>"
 962                                        "      <arg type='i' name='first' direction='in'/>"
 963                                        "      <arg type='i' name='second' direction='in'/>"
 964                                        "      <arg type='i' name='sum' direction='out'/>"
 965                                        "    </method>"
 966                                        "  </interface>"
 967                                        "</node>",
 968                                        &error);
 969   g_assert_no_error (error);
 970
 971   /* sleep 100ms before exporting an object - this is to test that
 972    * G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING really works
 973    * (GDBusServer uses this feature).
 974    */
 975   usleep (100 * 1000);
 976
 977   /* export an object */
 978   error = NULL;
 979   g_dbus_connection_register_object (connection,
 980                                      "/dmp/test",
 981                                      node->interfaces[0],
 982                                      &dmp_interface_vtable,
 983                                      data,
 984                                      NULL,
 985                                      &error);
 986   g_dbus_node_info_unref (node);
 987 }
 988
 989 static gpointer
 990 dmp_thread_func (gpointer user_data)
 991 {
 992   DmpData *data = user_data;
 993   GError *error;
 994   gchar *guid;
 995
 996   data->context = g_main_context_new ();
 997   g_main_context_push_thread_default (data->context);
 998
 999   error = NULL;
1000   guid = g_dbus_generate_guid ();
1001   data->server = g_dbus_server_new_sync ("unix:tmpdir=/tmp/gdbus-test-",
1002                                          G_DBUS_SERVER_FLAGS_NONE,
1003                                          guid,
1004                                          NULL, /* GDBusAuthObserver */
1005                                          NULL, /* GCancellable */
1006                                          &error);
1007   g_assert_no_error (error);
1008   g_signal_connect (data->server,
1009                     "new-connection",
1010                     G_CALLBACK (dmp_on_new_connection),
1011                     data);
1012
1013   g_dbus_server_start (data->server);
1014
1015   data->loop = g_main_loop_new (data->context, FALSE);
1016   g_main_loop_run (data->loop);
1017
1018   g_main_context_pop_thread_default (data->context);
1019
1020   g_free (guid);
1021   return NULL;
1022 }
1023
1024 static void
1025 delayed_message_processing (void)
1026 {
1027   GError *error;
1028   DmpData *data;
1029   GThread *service_thread;
1030   guint n;
1031
1032   data = g_new0 (DmpData, 1);
1033
1034   error = NULL;
1035   service_thread = g_thread_create (dmp_thread_func,
1036                                     data,
1037                                     TRUE,
1038                                     &error);
1039   while (data->server == NULL || !g_dbus_server_is_active (data->server))
1040     g_thread_yield ();
1041
1042   for (n = 0; n < 5; n++)
1043     {
1044       GDBusConnection *c;
1045       GVariant *res;
1046       gint32 val;
1047
1048       error = NULL;
1049       c = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (data->server),
1050                                                   G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1051                                                   NULL, /* GDBusAuthObserver */
1052                                                   NULL, /* GCancellable */
1053                                                   &error);
1054       g_assert_no_error (error);
1055
1056       error = NULL;
1057       res = g_dbus_connection_call_sync (c,
1058                                          NULL,    /* bus name */
1059                                          "/dmp/test",
1060                                          "org.gtk.GDBus.DmpInterface",
1061                                          "AddPair",
1062                                          g_variant_new ("(ii)", 2, n),
1063                                          G_VARIANT_TYPE ("(i)"),
1064                                          G_DBUS_CALL_FLAGS_NONE,
1065                                          -1, /* timeout_msec */
1066                                          NULL, /* GCancellable */
1067                                          &error);
1068       g_assert_no_error (error);
1069       g_variant_get (res, "(i)", &val);
1070       g_assert_cmpint (val, ==, 2 + n);
1071       g_variant_unref (res);
1072       g_object_unref (c);
1073   }
1074
1075   g_main_loop_quit (data->loop);
1076   g_thread_join (service_thread);
1077   dmp_data_free (data);
1078 }
1079
1080 /* ---------------------------------------------------------------------------------------------------- */
1081
1082 static gboolean
1083 nonce_tcp_on_authorize_authenticated_peer (GDBusAuthObserver *observer,
1084                                            GIOStream         *stream,
1085                                            GCredentials      *credentials,
1086                                            gpointer           user_data)
1087 {
1088   PeerData *data = user_data;
1089   gboolean authorized;
1090
1091   data->num_connection_attempts++;
1092
1093   authorized = TRUE;
1094   if (!data->accept_connection)
1095     {
1096       authorized = FALSE;
1097       g_main_loop_quit (loop);
1098     }
1099
1100   return authorized;
1101 }
1102
1103 /* Runs in thread we created GDBusServer in (since we didn't pass G_DBUS_SERVER_FLAGS_RUN_IN_THREAD) */
1104 static void
1105 nonce_tcp_on_new_connection (GDBusServer *server,
1106                              GDBusConnection *connection,
1107                              gpointer user_data)
1108 {
1109   PeerData *data = user_data;
1110
1111   g_ptr_array_add (data->current_connections, g_object_ref (connection));
1112
1113   g_main_loop_quit (loop);
1114 }
1115
1116 static gpointer
1117 nonce_tcp_service_thread_func (gpointer user_data)
1118 {
1119   PeerData *data = user_data;
1120   GMainContext *service_context;
1121   GDBusAuthObserver *observer;
1122   GError *error;
1123
1124   service_context = g_main_context_new ();
1125   g_main_context_push_thread_default (service_context);
1126
1127   error = NULL;
1128   observer = g_dbus_auth_observer_new ();
1129   server = g_dbus_server_new_sync ("nonce-tcp:",
1130                                    G_DBUS_SERVER_FLAGS_NONE,
1131                                    test_guid,
1132                                    observer,
1133                                    NULL, /* cancellable */
1134                                    &error);
1135   g_assert_no_error (error);
1136
1137   g_signal_connect (server,
1138                     "new-connection",
1139                     G_CALLBACK (nonce_tcp_on_new_connection),
1140                     data);
1141   g_signal_connect (observer,
1142                     "authorize-authenticated-peer",
1143                     G_CALLBACK (nonce_tcp_on_authorize_authenticated_peer),
1144                     data);
1145   g_object_unref (observer);
1146
1147   g_dbus_server_start (server);
1148
1149   service_loop = g_main_loop_new (service_context, FALSE);
1150   g_main_loop_run (service_loop);
1151
1152   g_main_context_pop_thread_default (service_context);
1153
1154   g_main_loop_unref (service_loop);
1155   g_main_context_unref (service_context);
1156
1157   /* test code specifically unrefs the server - see below */
1158   g_assert (server == NULL);
1159
1160   return NULL;
1161 }
1162
1163 static void
1164 test_nonce_tcp (void)
1165 {
1166   PeerData data;
1167   GError *error;
1168   GThread *service_thread;
1169   GDBusConnection *c;
1170   gchar *s;
1171   gchar *nonce_file;
1172   gboolean res;
1173   const gchar *address;
1174
1175   memset (&data, '\0', sizeof (PeerData));
1176   data.current_connections = g_ptr_array_new_with_free_func (g_object_unref);
1177
1178   error = NULL;
1179   server = NULL;
1180   service_loop = NULL;
1181   service_thread = g_thread_create (nonce_tcp_service_thread_func,
1182                                     &data,
1183                                     TRUE,
1184                                     &error);
1185   while (service_loop == NULL)
1186     g_thread_yield ();
1187   g_assert (server != NULL);
1188
1189
1190   /* bring up a connection and accept it */
1191   data.accept_connection = TRUE;
1192   error = NULL;
1193   c = g_dbus_connection_new_for_address_sync (g_dbus_server_get_client_address (server),
1194                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1195                                               NULL, /* GDBusAuthObserver */
1196                                               NULL, /* cancellable */
1197                                               &error);
1198   g_assert_no_error (error);
1199   g_assert (c != NULL);
1200   while (data.current_connections->len < 1)
1201     g_main_loop_run (loop);
1202   g_assert_cmpint (data.current_connections->len, ==, 1);
1203   g_assert_cmpint (data.num_connection_attempts, ==, 1);
1204   g_assert (g_dbus_connection_get_unique_name (c) == NULL);
1205   g_assert_cmpstr (g_dbus_connection_get_guid (c), ==, test_guid);
1206   g_object_unref (c);
1207
1208   /* now, try to subvert the nonce file (this assumes noncefile is the last key/value pair)
1209    */
1210
1211   address = g_dbus_server_get_client_address (server);
1212
1213   s = strstr (address, "noncefile=");
1214   g_assert (s != NULL);
1215   s += sizeof "noncefile=" - 1;
1216   nonce_file = g_strdup (s);
1217
1218   /* First try invalid data in the nonce file - this will actually
1219    * make the client send this and the server will reject it. The way
1220    * it works is that if the nonce doesn't match, the server will
1221    * simply close the connection. So, from the client point of view,
1222    * we can see a variety of errors.
1223    */
1224   error = NULL;
1225   res = g_file_set_contents (nonce_file,
1226                              "0123456789012345",
1227                              -1,
1228                              &error);
1229   g_assert_no_error (error);
1230   g_assert (res);
1231   c = g_dbus_connection_new_for_address_sync (address,
1232                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1233                                               NULL, /* GDBusAuthObserver */
1234                                               NULL, /* cancellable */
1235                                               &error);
1236   _g_assert_error_domain (error, G_IO_ERROR);
1237   g_error_free (error);
1238   g_assert (c == NULL);
1239
1240   /* Then try with a nonce-file of incorrect length - this will make
1241    * the client complain - we won't even try connecting to the server
1242    * for this
1243    */
1244   error = NULL;
1245   res = g_file_set_contents (nonce_file,
1246                              "0123456789012345_",
1247                              -1,
1248                              &error);
1249   g_assert_no_error (error);
1250   g_assert (res);
1251   c = g_dbus_connection_new_for_address_sync (address,
1252                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1253                                               NULL, /* GDBusAuthObserver */
1254                                               NULL, /* cancellable */
1255                                               &error);
1256   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
1257   g_error_free (error);
1258   g_assert (c == NULL);
1259
1260   /* Finally try with no nonce-file at all */
1261   g_assert_cmpint (g_unlink (nonce_file), ==, 0);
1262   error = NULL;
1263   c = g_dbus_connection_new_for_address_sync (address,
1264                                               G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
1265                                               NULL, /* GDBusAuthObserver */
1266                                               NULL, /* cancellable */
1267                                               &error);
1268   g_assert_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT);
1269   g_error_free (error);
1270   g_assert (c == NULL);
1271
1272   g_free (nonce_file);
1273
1274   g_dbus_server_stop (server);
1275   g_object_unref (server);
1276   server = NULL;
1277
1278   g_main_loop_quit (service_loop);
1279   g_thread_join (service_thread);
1280 }
1281
1282 static void
1283 test_credentials (void)
1284 {
1285   GCredentials *c1, *c2;
1286   GError *error;
1287   gchar *desc;
1288
1289   c1 = g_credentials_new ();
1290   c2 = g_credentials_new ();
1291
1292   error = NULL;
1293   if (g_credentials_set_unix_user (c2, getuid (), &error))
1294     g_assert_no_error (error);
1295
1296   g_clear_error (&error);
1297   g_assert (g_credentials_is_same_user (c1, c2, &error));
1298   g_assert_no_error (error);
1299
1300   desc = g_credentials_to_string (c1);
1301   g_assert (desc != NULL);
1302   g_free (desc);
1303
1304   g_object_unref (c1);
1305   g_object_unref (c2);
1306 }
1307
1308 /* ---------------------------------------------------------------------------------------------------- */
1309
1310 #ifdef G_OS_UNIX
1311
1312 /* Chosen to be big enough to overflow the socket buffer */
1313 #define OVERFLOW_NUM_SIGNALS 5000
1314 #define OVERFLOW_TIMEOUT_SEC 10
1315
1316 static GDBusMessage *
1317 overflow_filter_func (GDBusConnection *connection,
1318                       GDBusMessage    *message,
1319                       gboolean         incoming,
1320                       gpointer         user_data)
1321 {
1322   volatile gint *counter = user_data;
1323   *counter += 1;
1324   return message;
1325 }
1326
1327 static gboolean
1328 overflow_on_500ms_later_func (gpointer user_data)
1329 {
1330   g_main_loop_quit (loop);
1331   return FALSE; /* don't keep the idle */
1332 }
1333
1334 static void
1335 test_overflow (void)
1336 {
1337   gint sv[2];
1338   gint n;
1339   GSocket *socket;
1340   GSocketConnection *socket_connection;
1341   GDBusConnection *producer, *consumer;
1342   GError *error;
1343   GTimer *timer;
1344   volatile gint n_messages_received;
1345   volatile gint n_messages_sent;
1346
1347   g_assert_cmpint (socketpair (AF_UNIX, SOCK_STREAM, 0, sv), ==, 0);
1348
1349   error = NULL;
1350   socket = g_socket_new_from_fd (sv[0], &error);
1351   g_assert_no_error (error);
1352   socket_connection = g_socket_connection_factory_create_connection (socket);
1353   g_assert (socket_connection != NULL);
1354   g_object_unref (socket);
1355   producer = g_dbus_connection_new_sync (G_IO_STREAM (socket_connection),
1356                                          NULL, /* guid */
1357                                          G_DBUS_CONNECTION_FLAGS_NONE,
1358                                          NULL, /* GDBusAuthObserver */
1359                                          NULL, /* GCancellable */
1360                                          &error);
1361   g_dbus_connection_set_exit_on_close (producer, TRUE);
1362   g_assert_no_error (error);
1363   g_object_unref (socket_connection);
1364   n_messages_sent = 0;
1365   g_dbus_connection_add_filter (producer, overflow_filter_func, (gpointer) &n_messages_sent, NULL);
1366
1367   /* send enough data that we get an EAGAIN */
1368   for (n = 0; n < OVERFLOW_NUM_SIGNALS; n++)
1369     {
1370       error = NULL;
1371       g_dbus_connection_emit_signal (producer,
1372                                      NULL, /* destination */
1373                                      "/org/foo/Object",
1374                                      "org.foo.Interface",
1375                                      "Member",
1376                                      g_variant_new ("(s)", "a string"),
1377                                      &error);
1378       g_assert_no_error (error);
1379     }
1380
1381   /* sleep for 0.5 sec (to allow the GDBus IO thread to fill up the
1382    * kernel buffers) and verify that n_messages_sent <
1383    * OVERFLOW_NUM_SIGNALS
1384    *
1385    * This is to verify that not all the submitted messages have been
1386    * sent to the underlying transport.
1387    */
1388   g_timeout_add (500, overflow_on_500ms_later_func, NULL);
1389   g_main_loop_run (loop);
1390   g_assert_cmpint (n_messages_sent, <, OVERFLOW_NUM_SIGNALS);
1391
1392   /* now suck it all out as a client, and add it up */
1393   socket = g_socket_new_from_fd (sv[1], &error);
1394   g_assert_no_error (error);
1395   socket_connection = g_socket_connection_factory_create_connection (socket);
1396   g_assert (socket_connection != NULL);
1397   g_object_unref (socket);
1398   consumer = g_dbus_connection_new_sync (G_IO_STREAM (socket_connection),
1399                                          NULL, /* guid */
1400                                          G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING,
1401                                          NULL, /* GDBusAuthObserver */
1402                                          NULL, /* GCancellable */
1403                                          &error);
1404   g_assert_no_error (error);
1405   g_object_unref (socket_connection);
1406   n_messages_received = 0;
1407   g_dbus_connection_add_filter (consumer, overflow_filter_func, (gpointer) &n_messages_received, NULL);
1408   g_dbus_connection_start_message_processing (consumer);
1409
1410   timer = g_timer_new ();
1411   g_timer_start (timer);
1412
1413   while (n_messages_received < OVERFLOW_NUM_SIGNALS && g_timer_elapsed (timer, NULL) < OVERFLOW_TIMEOUT_SEC)
1414       g_main_context_iteration (NULL, FALSE);
1415
1416   g_assert_cmpint (n_messages_sent, ==, OVERFLOW_NUM_SIGNALS);
1417   g_assert_cmpint (n_messages_received, ==, OVERFLOW_NUM_SIGNALS);
1418
1419   g_timer_destroy (timer);
1420   g_object_unref (consumer);
1421   g_object_unref (producer);
1422 }
1423 #else
1424 static void
1425 test_overflow (void)
1426 {
1427   /* TODO: test this with e.g. GWin32InputStream/GWin32OutputStream */
1428 }
1429 #endif
1430
1431 /* ---------------------------------------------------------------------------------------------------- */
1432
1433 int
1434 main (int   argc,
1435       char *argv[])
1436 {
1437   gint ret;
1438   GDBusNodeInfo *introspection_data = NULL;
1439
1440   g_type_init ();
1441   g_thread_init (NULL);
1442   g_test_init (&argc, &argv, NULL);
1443
1444   introspection_data = g_dbus_node_info_new_for_xml (test_interface_introspection_xml, NULL);
1445   g_assert (introspection_data != NULL);
1446   test_interface_introspection_data = introspection_data->interfaces[0];
1447
1448   test_guid = g_dbus_generate_guid ();
1449
1450   /* all the tests rely on a shared main loop */
1451   loop = g_main_loop_new (NULL, FALSE);
1452
1453   g_test_add_func ("/gdbus/peer-to-peer", test_peer);
1454   g_test_add_func ("/gdbus/delayed-message-processing", delayed_message_processing);
1455   g_test_add_func ("/gdbus/nonce-tcp", test_nonce_tcp);
1456   g_test_add_func ("/gdbus/credentials", test_credentials);
1457   g_test_add_func ("/gdbus/overflow", test_overflow);
1458
1459   ret = g_test_run();
1460
1461   g_main_loop_unref (loop);
1462   g_free (test_guid);
1463   g_dbus_node_info_unref (introspection_data);
1464
1465   return ret;
1466 }