1 /* GDBus - GLib D-Bus Library
3 * Copyright (C) 2008-2010 Red Hat, Inc.
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.
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.
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.
20 * Author: David Zeuthen <davidz@redhat.com>
29 #include <gio/gunixconnection.h>
30 #include <gio/gunixfdmessage.h>
31 #include "gunixcredentialsmessage.h"
37 #include "gdbusprivate.h"
38 #include "gdbusmessage.h"
39 #include "gdbuserror.h"
40 #include "gdbusintrospection.h"
41 #include "gasyncresult.h"
42 #include "gsimpleasyncresult.h"
43 #include "ginputstream.h"
44 #include "giostream.h"
45 #include "gsocketcontrolmessage.h"
49 #include "gunixfdmessage.h"
50 #include "gunixconnection.h"
56 /* ---------------------------------------------------------------------------------------------------- */
59 hexdump (const gchar *data, gsize len, guint indent)
64 ret = g_string_new (NULL);
66 for (n = 0; n < len; n += 16)
68 g_string_append_printf (ret, "%*s%04x: ", indent, "", n);
70 for (m = n; m < n + 16; m++)
72 if (m > n && (m%4) == 0)
73 g_string_append_c (ret, ' ');
75 g_string_append_printf (ret, "%02x ", (guchar) data[m]);
77 g_string_append (ret, " ");
80 g_string_append (ret, " ");
82 for (m = n; m < len && m < n + 16; m++)
83 g_string_append_c (ret, g_ascii_isprint (data[m]) ? data[m] : '.');
85 g_string_append_c (ret, '\n');
88 return g_string_free (ret, FALSE);
91 /* ---------------------------------------------------------------------------------------------------- */
93 /* Unfortunately ancillary messages are discarded when reading from a
94 * socket using the GSocketInputStream abstraction. So we provide a
95 * very GInputStream-ish API that uses GSocket in this case (very
96 * similar to GSocketInputStream).
102 GCancellable *cancellable;
107 GSocketControlMessage ***messages;
110 GSimpleAsyncResult *simple;
112 gboolean from_mainloop;
113 } ReadWithControlData;
116 read_with_control_data_free (ReadWithControlData *data)
118 g_object_unref (data->socket);
119 if (data->cancellable != NULL)
120 g_object_unref (data->cancellable);
125 _g_socket_read_with_control_messages_ready (GSocket *socket,
126 GIOCondition condition,
129 ReadWithControlData *data = user_data;
135 vector.buffer = data->buffer;
136 vector.size = data->count;
137 result = g_socket_receive_message (data->socket,
148 g_simple_async_result_set_op_res_gssize (data->simple, result);
152 g_assert (error != NULL);
153 g_simple_async_result_set_from_error (data->simple, error);
154 g_error_free (error);
157 if (data->from_mainloop)
158 g_simple_async_result_complete (data->simple);
160 g_simple_async_result_complete_in_idle (data->simple);
166 _g_socket_read_with_control_messages (GSocket *socket,
169 GSocketControlMessage ***messages,
172 GCancellable *cancellable,
173 GAsyncReadyCallback callback,
176 ReadWithControlData *data;
178 data = g_new0 (ReadWithControlData, 1);
179 data->socket = g_object_ref (socket);
180 data->cancellable = cancellable != NULL ? g_object_ref (cancellable) : NULL;
181 data->buffer = buffer;
183 data->messages = messages;
184 data->num_messages = num_messages;
186 data->simple = g_simple_async_result_new (G_OBJECT (socket),
189 _g_socket_read_with_control_messages);
191 if (!g_socket_condition_check (socket, G_IO_IN))
194 data->from_mainloop = TRUE;
195 source = g_socket_create_source (data->socket,
196 G_IO_IN | G_IO_HUP | G_IO_ERR,
198 g_source_set_callback (source,
199 (GSourceFunc) _g_socket_read_with_control_messages_ready,
201 (GDestroyNotify) read_with_control_data_free);
202 g_source_attach (source, g_main_context_get_thread_default ());
203 g_source_unref (source);
207 _g_socket_read_with_control_messages_ready (data->socket, G_IO_IN, data);
208 read_with_control_data_free (data);
213 _g_socket_read_with_control_messages_finish (GSocket *socket,
214 GAsyncResult *result,
217 GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
219 g_return_val_if_fail (G_IS_SOCKET (socket), -1);
220 g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == _g_socket_read_with_control_messages);
222 if (g_simple_async_result_propagate_error (simple, error))
225 return g_simple_async_result_get_op_res_gssize (simple);
228 /* ---------------------------------------------------------------------------------------------------- */
230 G_LOCK_DEFINE_STATIC (shared_thread_lock);
236 GMainContext *context;
240 static SharedThreadData *shared_thread_data = NULL;
243 shared_thread_func (gpointer data)
245 g_main_context_push_thread_default (shared_thread_data->context);
246 g_main_loop_run (shared_thread_data->loop);
247 g_main_context_pop_thread_default (shared_thread_data->context);
251 typedef void (*GDBusSharedThreadFunc) (gpointer user_data);
255 GDBusSharedThreadFunc func;
261 invoke_caller (gpointer user_data)
263 CallerData *data = user_data;
264 data->func (data->user_data);
270 _g_dbus_shared_thread_ref (GDBusSharedThreadFunc func,
274 GSource *idle_source;
277 G_LOCK (shared_thread_lock);
279 if (shared_thread_data != NULL)
281 shared_thread_data->num_users += 1;
285 shared_thread_data = g_new0 (SharedThreadData, 1);
286 shared_thread_data->num_users = 1;
289 shared_thread_data->context = g_main_context_new ();
290 shared_thread_data->loop = g_main_loop_new (shared_thread_data->context, FALSE);
291 shared_thread_data->thread = g_thread_create (shared_thread_func,
295 g_assert_no_error (error);
299 data = g_new0 (CallerData, 1);
301 data->user_data = user_data;
304 idle_source = g_idle_source_new ();
305 g_source_set_priority (idle_source, G_PRIORITY_DEFAULT);
306 g_source_set_callback (idle_source,
310 g_source_attach (idle_source, shared_thread_data->context);
311 g_source_unref (idle_source);
313 /* wait for the user code to run.. hmm.. probably use a condition variable instead */
319 G_UNLOCK (shared_thread_lock);
323 _g_dbus_shared_thread_unref (void)
325 /* TODO: actually destroy the shared thread here */
327 G_LOCK (shared_thread_lock);
328 g_assert (shared_thread_data != NULL);
329 shared_thread_data->num_users -= 1;
330 if (shared_thread_data->num_users == 0)
332 g_main_loop_quit (shared_thread_data->loop);
333 //g_thread_join (shared_thread_data->thread);
334 g_main_loop_unref (shared_thread_data->loop);
335 g_main_context_unref (shared_thread_data->context);
336 g_free (shared_thread_data);
337 shared_thread_data = NULL;
338 G_UNLOCK (shared_thread_lock);
342 G_UNLOCK (shared_thread_lock);
347 /* ---------------------------------------------------------------------------------------------------- */
351 volatile gint ref_count;
354 GDBusCapabilityFlags capabilities;
355 GCancellable *cancellable;
356 GDBusWorkerMessageReceivedCallback message_received_callback;
357 GDBusWorkerDisconnectedCallback disconnected_callback;
362 /* if not NULL, stream is GSocketConnection */
365 /* used for reading */
368 gsize read_buffer_allocated_size;
369 gsize read_buffer_cur_size;
370 gsize read_buffer_bytes_wanted;
371 GUnixFDList *read_fd_list;
372 GSocketControlMessage **read_ancillary_messages;
373 gint read_num_ancillary_messages;
375 /* used for writing */
378 gboolean write_is_pending;
381 struct _MessageToWriteData ;
382 typedef struct _MessageToWriteData MessageToWriteData;
384 static void message_to_write_data_free (MessageToWriteData *data);
387 _g_dbus_worker_ref (GDBusWorker *worker)
389 g_atomic_int_inc (&worker->ref_count);
394 _g_dbus_worker_unref (GDBusWorker *worker)
396 if (g_atomic_int_dec_and_test (&worker->ref_count))
398 _g_dbus_shared_thread_unref ();
400 g_object_unref (worker->stream);
402 g_mutex_free (worker->read_lock);
403 g_object_unref (worker->cancellable);
404 if (worker->read_fd_list != NULL)
405 g_object_unref (worker->read_fd_list);
407 g_mutex_free (worker->write_lock);
408 g_queue_foreach (worker->write_queue,
409 (GFunc) message_to_write_data_free,
411 g_queue_free (worker->write_queue);
417 _g_dbus_worker_emit_disconnected (GDBusWorker *worker,
418 gboolean remote_peer_vanished,
421 if (!worker->stopped)
422 worker->disconnected_callback (worker, remote_peer_vanished, error, worker->user_data);
426 _g_dbus_worker_emit_message (GDBusWorker *worker,
427 GDBusMessage *message)
429 if (!worker->stopped)
430 worker->message_received_callback (worker, message, worker->user_data);
433 static void _g_dbus_worker_do_read_unlocked (GDBusWorker *worker);
435 /* called in private thread shared by all GDBusConnection instances (without read-lock held) */
437 _g_dbus_worker_do_read_cb (GInputStream *input_stream,
441 GDBusWorker *worker = user_data;
445 g_mutex_lock (worker->read_lock);
447 /* If already stopped, don't even process the reply */
452 if (worker->socket == NULL)
453 bytes_read = g_input_stream_read_finish (g_io_stream_get_input_stream (worker->stream),
457 bytes_read = _g_socket_read_with_control_messages_finish (worker->socket,
460 if (worker->read_num_ancillary_messages > 0)
463 for (n = 0; n < worker->read_num_ancillary_messages; n++)
465 GSocketControlMessage *control_message = G_SOCKET_CONTROL_MESSAGE (worker->read_ancillary_messages[n]);
471 else if (G_IS_UNIX_FD_MESSAGE (control_message))
473 GUnixFDMessage *fd_message;
477 fd_message = G_UNIX_FD_MESSAGE (control_message);
478 fds = g_unix_fd_message_steal_fds (fd_message, &num_fds);
479 if (worker->read_fd_list == NULL)
481 worker->read_fd_list = g_unix_fd_list_new_from_array (fds, num_fds);
486 for (n = 0; n < num_fds; n++)
488 /* TODO: really want a append_steal() */
489 g_unix_fd_list_append (worker->read_fd_list, fds[n], NULL);
495 else if (G_IS_UNIX_CREDENTIALS_MESSAGE (control_message))
507 "Unexpected ancillary message of type %s received from peer",
508 g_type_name (G_TYPE_FROM_INSTANCE (control_message)));
509 _g_dbus_worker_emit_disconnected (worker, TRUE, error);
510 g_error_free (error);
511 g_object_unref (control_message);
513 while (n < worker->read_num_ancillary_messages)
514 g_object_unref (worker->read_ancillary_messages[n++]);
515 g_free (worker->read_ancillary_messages);
519 g_object_unref (control_message);
521 g_free (worker->read_ancillary_messages);
524 if (bytes_read == -1)
526 _g_dbus_worker_emit_disconnected (worker, TRUE, error);
527 g_error_free (error);
532 g_debug ("read %d bytes (is_closed=%d blocking=%d condition=0x%02x) stream %p, %p",
534 g_socket_is_closed (g_socket_connection_get_socket (G_SOCKET_CONNECTION (worker->stream))),
535 g_socket_get_blocking (g_socket_connection_get_socket (G_SOCKET_CONNECTION (worker->stream))),
536 g_socket_condition_check (g_socket_connection_get_socket (G_SOCKET_CONNECTION (worker->stream)),
537 G_IO_IN | G_IO_OUT | G_IO_HUP),
542 /* TODO: hmm, hmm... */
548 "Underlying GIOStream returned 0 bytes on an async read");
549 _g_dbus_worker_emit_disconnected (worker, TRUE, error);
550 g_error_free (error);
554 worker->read_buffer_cur_size += bytes_read;
555 if (worker->read_buffer_bytes_wanted == worker->read_buffer_cur_size)
557 /* OK, got what we asked for! */
558 if (worker->read_buffer_bytes_wanted == 16)
561 /* OK, got the header - determine how many more bytes are needed */
563 message_len = g_dbus_message_bytes_needed ((guchar *) worker->read_buffer,
566 if (message_len == -1)
568 g_warning ("_g_dbus_worker_do_read_cb: error determing bytes needed: %s", error->message);
569 _g_dbus_worker_emit_disconnected (worker, FALSE, error);
570 g_error_free (error);
574 worker->read_buffer_bytes_wanted = message_len;
575 _g_dbus_worker_do_read_unlocked (worker);
579 GDBusMessage *message;
582 /* TODO: use connection->priv->auth to decode the message */
584 message = g_dbus_message_new_from_blob ((guchar *) worker->read_buffer,
585 worker->read_buffer_cur_size,
586 worker->capabilities,
590 _g_dbus_worker_emit_disconnected (worker, FALSE, error);
591 g_error_free (error);
595 if (worker->read_fd_list != NULL)
597 g_dbus_message_set_unix_fd_list (message, worker->read_fd_list);
598 worker->read_fd_list = NULL;
601 if (G_UNLIKELY (_g_dbus_debug_message ()))
604 g_print ("========================================================================\n"
605 "GDBus-debug:Message:\n"
606 " <<<< RECEIVED D-Bus message (%" G_GSIZE_FORMAT " bytes)\n",
607 worker->read_buffer_cur_size);
608 s = g_dbus_message_print (message, 2);
611 s = hexdump (worker->read_buffer, worker->read_buffer_cur_size, 2);
616 /* yay, got a message, go deliver it */
617 _g_dbus_worker_emit_message (worker, message);
618 g_object_unref (message);
620 /* start reading another message! */
621 worker->read_buffer_bytes_wanted = 0;
622 worker->read_buffer_cur_size = 0;
623 _g_dbus_worker_do_read_unlocked (worker);
628 /* didn't get all the bytes we requested - so repeat the request... */
629 _g_dbus_worker_do_read_unlocked (worker);
633 g_mutex_unlock (worker->read_lock);
635 /* gives up the reference acquired when calling g_input_stream_read_async() */
636 _g_dbus_worker_unref (worker);
639 /* called in private thread shared by all GDBusConnection instances (with read-lock held) */
641 _g_dbus_worker_do_read_unlocked (GDBusWorker *worker)
643 /* if bytes_wanted is zero, it means start reading a message */
644 if (worker->read_buffer_bytes_wanted == 0)
646 worker->read_buffer_cur_size = 0;
647 worker->read_buffer_bytes_wanted = 16;
650 /* ensure we have a (big enough) buffer */
651 if (worker->read_buffer == NULL || worker->read_buffer_bytes_wanted > worker->read_buffer_allocated_size)
653 /* TODO: 4096 is randomly chosen; might want a better chosen default minimum */
654 worker->read_buffer_allocated_size = MAX (worker->read_buffer_bytes_wanted, 4096);
655 worker->read_buffer = g_realloc (worker->read_buffer, worker->read_buffer_allocated_size);
658 if (worker->socket == NULL)
659 g_input_stream_read_async (g_io_stream_get_input_stream (worker->stream),
660 worker->read_buffer + worker->read_buffer_cur_size,
661 worker->read_buffer_bytes_wanted - worker->read_buffer_cur_size,
664 (GAsyncReadyCallback) _g_dbus_worker_do_read_cb,
665 _g_dbus_worker_ref (worker));
668 worker->read_ancillary_messages = NULL;
669 worker->read_num_ancillary_messages = 0;
670 _g_socket_read_with_control_messages (worker->socket,
671 worker->read_buffer + worker->read_buffer_cur_size,
672 worker->read_buffer_bytes_wanted - worker->read_buffer_cur_size,
673 &worker->read_ancillary_messages,
674 &worker->read_num_ancillary_messages,
677 (GAsyncReadyCallback) _g_dbus_worker_do_read_cb,
678 _g_dbus_worker_ref (worker));
682 /* called in private thread shared by all GDBusConnection instances (without read-lock held) */
684 _g_dbus_worker_do_read (GDBusWorker *worker)
686 g_mutex_lock (worker->read_lock);
687 _g_dbus_worker_do_read_unlocked (worker);
688 g_mutex_unlock (worker->read_lock);
691 /* ---------------------------------------------------------------------------------------------------- */
693 struct _MessageToWriteData
695 GDBusMessage *message;
701 message_to_write_data_free (MessageToWriteData *data)
703 g_object_unref (data->message);
708 /* ---------------------------------------------------------------------------------------------------- */
710 /* called in private thread shared by all GDBusConnection instances (with write-lock held) */
712 write_message (GDBusWorker *worker,
713 MessageToWriteData *data,
718 g_return_val_if_fail (data->blob_size > 16, FALSE);
722 /* First, the initial 16 bytes - special case UNIX sockets here
723 * since it may involve writing an ancillary message with file
728 GOutputVector vector;
729 GSocketControlMessage *message;
730 GUnixFDList *fd_list;
731 gssize bytes_written;
733 fd_list = g_dbus_message_get_unix_fd_list (data->message);
738 if (!G_IS_UNIX_CONNECTION (worker->stream))
742 G_IO_ERROR_INVALID_ARGUMENT,
743 "Tried sending a file descriptor on unsupported stream of type %s",
744 g_type_name (G_TYPE_FROM_INSTANCE (worker->stream)));
747 else if (!(worker->capabilities & G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING))
749 g_set_error_literal (error,
751 G_IO_ERROR_INVALID_ARGUMENT,
752 "Tried sending a file descriptor but remote peer does not support this capability");
755 message = g_unix_fd_message_new_with_fd_list (fd_list);
758 vector.buffer = data->blob;
761 bytes_written = g_socket_send_message (worker->socket,
765 message != NULL ? &message : NULL,
766 message != NULL ? 1 : 0,
770 if (bytes_written == -1)
772 g_prefix_error (error, _("Error writing first 16 bytes of message to socket: "));
774 g_object_unref (message);
778 g_object_unref (message);
780 if (bytes_written < 16)
782 /* TODO: I think this needs to be handled ... are we guaranteed that the ancillary
785 g_assert_not_reached ();
789 /* write the first 16 bytes (guaranteed to return an error if everything can't be written) */
790 if (!g_output_stream_write_all (g_io_stream_get_output_stream (worker->stream),
791 (const gchar *) data->blob,
793 NULL, /* bytes_written */
794 worker->cancellable, /* cancellable */
799 /* Then write the rest of the message (guaranteed to return an error if everything can't be written) */
800 if (!g_output_stream_write_all (g_io_stream_get_output_stream (worker->stream),
801 (const gchar *) data->blob + 16,
802 data->blob_size - 16,
803 NULL, /* bytes_written */
804 worker->cancellable, /* cancellable */
810 if (G_UNLIKELY (_g_dbus_debug_message ()))
813 g_print ("========================================================================\n"
814 "GDBus-debug:Message:\n"
815 " >>>> SENT D-Bus message (%" G_GSIZE_FORMAT " bytes)\n",
817 s = g_dbus_message_print (data->message, 2);
820 s = hexdump (data->blob, data->blob_size, 2);
829 /* ---------------------------------------------------------------------------------------------------- */
831 /* called in private thread shared by all GDBusConnection instances (without write-lock held) */
833 write_message_in_idle_cb (gpointer user_data)
835 GDBusWorker *worker = user_data;
836 gboolean more_writes_are_pending;
837 MessageToWriteData *data;
840 g_mutex_lock (worker->write_lock);
842 data = g_queue_pop_head (worker->write_queue);
843 g_assert (data != NULL);
846 if (!write_message (worker,
851 _g_dbus_worker_emit_disconnected (worker, TRUE, error);
852 g_error_free (error);
854 message_to_write_data_free (data);
856 more_writes_are_pending = (g_queue_get_length (worker->write_queue) > 0);
858 worker->write_is_pending = more_writes_are_pending;
859 g_mutex_unlock (worker->write_lock);
861 return more_writes_are_pending;
864 /* ---------------------------------------------------------------------------------------------------- */
866 /* can be called from any thread - steals blob */
868 _g_dbus_worker_send_message (GDBusWorker *worker,
869 GDBusMessage *message,
873 MessageToWriteData *data;
875 g_return_if_fail (G_IS_DBUS_MESSAGE (message));
876 g_return_if_fail (blob != NULL);
877 g_return_if_fail (blob_len > 16);
879 data = g_new0 (MessageToWriteData, 1);
880 data->message = g_object_ref (message);
881 data->blob = blob; /* steal! */
882 data->blob_size = blob_len;
884 g_mutex_lock (worker->write_lock);
885 g_queue_push_tail (worker->write_queue, data);
886 if (!worker->write_is_pending)
888 GSource *idle_source;
890 worker->write_is_pending = TRUE;
892 idle_source = g_idle_source_new ();
893 g_source_set_priority (idle_source, G_PRIORITY_DEFAULT);
894 g_source_set_callback (idle_source,
895 write_message_in_idle_cb,
896 _g_dbus_worker_ref (worker),
897 (GDestroyNotify) _g_dbus_worker_unref);
898 g_source_attach (idle_source, shared_thread_data->context);
899 g_source_unref (idle_source);
901 g_mutex_unlock (worker->write_lock);
904 /* ---------------------------------------------------------------------------------------------------- */
907 _g_dbus_worker_thread_begin_func (gpointer user_data)
909 GDBusWorker *worker = user_data;
911 worker->thread = g_thread_self ();
914 _g_dbus_worker_do_read (worker);
918 _g_dbus_worker_new (GIOStream *stream,
919 GDBusCapabilityFlags capabilities,
920 GDBusWorkerMessageReceivedCallback message_received_callback,
921 GDBusWorkerDisconnectedCallback disconnected_callback,
926 g_return_val_if_fail (G_IS_IO_STREAM (stream), NULL);
927 g_return_val_if_fail (message_received_callback != NULL, NULL);
928 g_return_val_if_fail (disconnected_callback != NULL, NULL);
930 worker = g_new0 (GDBusWorker, 1);
931 worker->ref_count = 1;
933 worker->read_lock = g_mutex_new ();
934 worker->message_received_callback = message_received_callback;
935 worker->disconnected_callback = disconnected_callback;
936 worker->user_data = user_data;
937 worker->stream = g_object_ref (stream);
938 worker->capabilities = capabilities;
939 worker->cancellable = g_cancellable_new ();
941 worker->write_lock = g_mutex_new ();
942 worker->write_queue = g_queue_new ();
944 if (G_IS_SOCKET_CONNECTION (worker->stream))
945 worker->socket = g_socket_connection_get_socket (G_SOCKET_CONNECTION (worker->stream));
947 _g_dbus_shared_thread_ref (_g_dbus_worker_thread_begin_func, worker);
952 /* This can be called from any thread - frees worker - guarantees no callbacks
953 * will ever be issued again
956 _g_dbus_worker_stop (GDBusWorker *worker)
958 /* If we're called in the worker thread it means we are called from
959 * a worker callback. This is fine, we just can't lock in that case since
960 * we're already holding the lock...
962 if (g_thread_self () != worker->thread)
963 g_mutex_lock (worker->read_lock);
964 worker->stopped = TRUE;
965 if (g_thread_self () != worker->thread)
966 g_mutex_unlock (worker->read_lock);
968 g_cancellable_cancel (worker->cancellable);
969 _g_dbus_worker_unref (worker);
972 #define G_DBUS_DEBUG_AUTHENTICATION (1<<0)
973 #define G_DBUS_DEBUG_MESSAGE (1<<1)
974 #define G_DBUS_DEBUG_ALL 0xffffffff
975 static gint _gdbus_debug_flags = 0;
978 _g_dbus_debug_authentication (void)
980 _g_dbus_initialize ();
981 return (_gdbus_debug_flags & G_DBUS_DEBUG_AUTHENTICATION) != 0;
985 _g_dbus_debug_message (void)
987 _g_dbus_initialize ();
988 return (_gdbus_debug_flags & G_DBUS_DEBUG_MESSAGE) != 0;
992 * _g_dbus_initialize:
994 * Does various one-time init things such as
996 * - registering the G_DBUS_ERROR error domain
997 * - parses the G_DBUS_DEBUG environment variable
1000 _g_dbus_initialize (void)
1002 static volatile gsize initialized = 0;
1004 if (g_once_init_enter (&initialized))
1006 volatile GQuark g_dbus_error_domain;
1009 g_dbus_error_domain = G_DBUS_ERROR;
1011 debug = g_getenv ("G_DBUS_DEBUG");
1016 tokens = g_strsplit (debug, ",", 0);
1017 for (n = 0; tokens[n] != NULL; n++)
1019 if (g_strcmp0 (tokens[n], "authentication") == 0)
1020 _gdbus_debug_flags |= G_DBUS_DEBUG_AUTHENTICATION;
1021 else if (g_strcmp0 (tokens[n], "message") == 0)
1022 _gdbus_debug_flags |= G_DBUS_DEBUG_MESSAGE;
1023 else if (g_strcmp0 (tokens[n], "all") == 0)
1024 _gdbus_debug_flags |= G_DBUS_DEBUG_ALL;
1026 g_strfreev (tokens);
1029 g_once_init_leave (&initialized, 1);
1033 /* ---------------------------------------------------------------------------------------------------- */
1036 _g_dbus_compute_complete_signature (GDBusArgInfo **args,
1037 gboolean include_parentheses)
1042 if (include_parentheses)
1043 s = g_string_new ("(");
1045 s = g_string_new ("");
1047 for (n = 0; args[n] != NULL; n++)
1048 g_string_append (s, args[n]->signature);
1050 if (include_parentheses)
1051 g_string_append_c (s, ')');
1053 return g_string_free (s, FALSE);
1056 #define __G_DBUS_PRIVATE_C__
1057 #include "gioaliasdef.c"