1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* dispatch.c Message dispatcher
4 * Copyright (C) 2003 CodeFactory AB
6 * Licensed under the Academic Free License version 1.2
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "connection.h"
28 #include <dbus/dbus-internals.h>
31 static int message_handler_slot;
34 send_one_message (DBusConnection *connection, void *data)
36 BUS_HANDLE_OOM (dbus_connection_send_message (connection, data, NULL, NULL));
40 bus_dispatch_broadcast_message (DBusMessage *message)
42 _dbus_assert (dbus_message_get_sender (message) != NULL);
44 bus_connection_foreach (send_one_message, message);
48 static DBusHandlerResult
49 bus_dispatch_message_handler (DBusMessageHandler *handler,
50 DBusConnection *connection,
54 const char *sender, *service_name, *message_name;
56 /* Assign a sender to the message */
57 sender = bus_connection_get_name (connection);
58 BUS_HANDLE_OOM (dbus_message_set_sender (message, sender));
60 service_name = dbus_message_get_service (message);
61 message_name = dbus_message_get_name (message);
63 /* TODO: Crashes if service_name == NULL */
65 /* See if the message is to the driver */
66 if (message_name && strcmp (message_name, DBUS_MESSAGE_LOCAL_DISCONNECT) == 0)
68 bus_connection_disconnect (connection);
70 else if (strcmp (service_name, DBUS_SERVICE_DBUS) == 0)
72 bus_driver_handle_message (connection, message);
74 else if (sender == NULL)
76 _dbus_verbose ("Received message from non-registered client. Disconnecting.\n");
77 dbus_connection_disconnect (connection);
79 else if (strcmp (service_name, DBUS_SERVICE_BROADCAST) == 0)
81 bus_dispatch_broadcast_message (message);
85 DBusString service_string;
88 _dbus_string_init_const (&service_string, service_name);
89 service = bus_service_lookup (&service_string, FALSE);
93 DBusMessage *error_reply;
94 DBusString error_message;
95 const char *error_str;
97 /* Trying to send a message to a non-existant service,
98 bounce back an error message. */
100 BUS_HANDLE_OOM (_dbus_string_init (&error_message, _DBUS_INT_MAX));
102 BUS_HANDLE_OOM (_dbus_string_append (&error_message, "Service \""));
103 BUS_HANDLE_OOM (_dbus_string_append (&error_message, service_name));
104 BUS_HANDLE_OOM (_dbus_string_append (&error_message, "does not exist"));
106 _dbus_string_get_const_data (&error_message, &error_str);
107 BUS_HANDLE_OOM (error_reply = dbus_message_new_error_reply (message, DBUS_ERROR_SERVICE_DOES_NOT_EXIST,
109 _dbus_string_free (&error_message);
111 /* Dispatch the message */
112 BUS_HANDLE_OOM (dbus_connection_send_message (connection, error_reply, NULL, NULL));
113 dbus_message_unref (error_reply);
117 _dbus_assert (bus_service_get_primary_owner (service) != NULL);
119 /* Dispatch the message */
120 BUS_HANDLE_OOM (dbus_connection_send_message (bus_service_get_primary_owner (service),
121 message, NULL, NULL));
125 return DBUS_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
129 bus_dispatch_add_connection (DBusConnection *connection)
131 DBusMessageHandler *handler;
133 message_handler_slot = dbus_connection_allocate_data_slot ();
135 if (message_handler_slot < 0)
138 handler = dbus_message_handler_new (bus_dispatch_message_handler, NULL, NULL);
140 if (!dbus_connection_add_filter (connection, handler))
142 dbus_message_handler_unref (handler);
147 if (!dbus_connection_set_data (connection,
148 message_handler_slot,
150 (DBusFreeFunction)dbus_message_handler_unref))
152 dbus_connection_remove_filter (connection, handler);
153 dbus_message_handler_unref (handler);
162 bus_dispatch_remove_connection (DBusConnection *connection)
164 /* Here we tell the bus driver that we want to get off. */
165 bus_driver_remove_connection (connection);
167 dbus_connection_set_data (connection,
168 message_handler_slot,