1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* connection.h  Client connections
3  *
4  * Copyright (C) 2003, 2004  Red Hat, Inc.
5  *
6  * Licensed under the Academic Free License version 2.1
7  *
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.
12  *
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.
17  *
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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
21  *
22  */
23 
24 #ifndef BUS_CONNECTION_H
25 #define BUS_CONNECTION_H
26 
27 #include <dbus/dbus.h>
28 #include <dbus/dbus-list.h>
29 #include "bus.h"
30 
31 typedef dbus_bool_t (* BusConnectionForeachFunction) (DBusConnection *connection,
32                                                       void           *data);
33 
34 
35 BusConnections* bus_connections_new               (BusContext                   *context);
36 BusConnections* bus_connections_ref               (BusConnections               *connections);
37 void            bus_connections_unref             (BusConnections               *connections);
38 dbus_bool_t     bus_connections_setup_connection  (BusConnections               *connections,
39                                                    DBusConnection               *connection);
40 void            bus_connections_foreach           (BusConnections               *connections,
41                                                    BusConnectionForeachFunction  function,
42                                                    void                         *data);
43 void            bus_connections_foreach_active    (BusConnections               *connections,
44                                                    BusConnectionForeachFunction  function,
45                                                    void                         *data);
46 BusContext*     bus_connections_get_context       (BusConnections               *connections);
47 void            bus_connections_increment_stamp   (BusConnections               *connections);
48 BusContext*     bus_connection_get_context        (DBusConnection               *connection);
49 BusConnections* bus_connection_get_connections    (DBusConnection               *connection);
50 BusRegistry*    bus_connection_get_registry       (DBusConnection               *connection);
51 BusActivation*  bus_connection_get_activation     (DBusConnection               *connection);
52 BusMatchmaker*  bus_connection_get_matchmaker     (DBusConnection               *connection);
53 const char *    bus_connection_get_loginfo        (DBusConnection        *connection);
54 BusSELinuxID*   bus_connection_get_selinux_id     (DBusConnection               *connection);
55 dbus_bool_t     bus_connections_check_limits      (BusConnections               *connections,
56                                                    DBusConnection               *requesting_completion,
57                                                    DBusError                    *error);
58 void            bus_connections_expire_incomplete (BusConnections               *connections);
59 
60 dbus_bool_t     bus_connections_expect_reply      (BusConnections               *connections,
61                                                    BusTransaction               *transaction,
62                                                    DBusConnection               *will_get_reply,
63                                                    DBusConnection               *will_send_reply,
64                                                    DBusMessage                  *reply_to_this,
65                                                    DBusError                    *error);
66 dbus_bool_t     bus_connections_check_reply       (BusConnections               *connections,
67                                                    BusTransaction               *transaction,
68                                                    DBusConnection               *sending_reply,
69                                                    DBusConnection               *receiving_reply,
70                                                    DBusMessage                  *reply,
71                                                    DBusError                    *error);
72 
73 dbus_bool_t     bus_connection_mark_stamp         (DBusConnection               *connection);
74 
75 dbus_bool_t bus_connection_is_active (DBusConnection *connection);
76 const char *bus_connection_get_name  (DBusConnection *connection);
77 
78 dbus_bool_t bus_connection_preallocate_oom_error (DBusConnection *connection);
79 void        bus_connection_send_oom_error        (DBusConnection *connection,
80                                                   DBusMessage    *in_reply_to);
81 
82 /* called by signals.c */
83 dbus_bool_t bus_connection_add_match_rule      (DBusConnection *connection,
84                                                 BusMatchRule   *rule);
85 void        bus_connection_add_match_rule_link (DBusConnection *connection,
86                                                 DBusList       *link);
87 void        bus_connection_remove_match_rule   (DBusConnection *connection,
88                                                 BusMatchRule   *rule);
89 int         bus_connection_get_n_match_rules   (DBusConnection *connection);
90 
91 
92 /* called by services.c */
93 dbus_bool_t bus_connection_add_owned_service      (DBusConnection *connection,
94                                                    BusService     *service);
95 void        bus_connection_remove_owned_service   (DBusConnection *connection,
96                                                    BusService     *service);
97 void        bus_connection_add_owned_service_link (DBusConnection *connection,
98                                                    DBusList       *link);
99 int         bus_connection_get_n_services_owned   (DBusConnection *connection);
100 
101 /* called by driver.c */
102 dbus_bool_t bus_connection_complete (DBusConnection               *connection,
103 				     const DBusString             *name,
104                                      DBusError                    *error);
105 
106 /* called by dispatch.c when the connection is dropped */
107 void        bus_connection_disconnected (DBusConnection *connection);
108 
109 dbus_bool_t      bus_connection_is_in_unix_group (DBusConnection       *connection,
110                                                   unsigned long         gid);
111 dbus_bool_t      bus_connection_get_unix_groups  (DBusConnection       *connection,
112                                                   unsigned long       **groups,
113                                                   int                  *n_groups,
114                                                   DBusError            *error);
115 BusClientPolicy* bus_connection_get_policy  (DBusConnection       *connection);
116 
117 /* transaction API so we can send or not send a block of messages as a whole */
118 
119 typedef void (* BusTransactionCancelFunction) (void *data);
120 
121 BusTransaction* bus_transaction_new              (BusContext                   *context);
122 BusContext*     bus_transaction_get_context      (BusTransaction               *transaction);
123 BusConnections* bus_transaction_get_connections  (BusTransaction               *transaction);
124 dbus_bool_t     bus_transaction_send             (BusTransaction               *transaction,
125                                                   DBusConnection               *connection,
126                                                   DBusMessage                  *message);
127 dbus_bool_t     bus_transaction_send_from_driver (BusTransaction               *transaction,
128                                                   DBusConnection               *connection,
129                                                   DBusMessage                  *message);
130 dbus_bool_t     bus_transaction_send_error_reply (BusTransaction               *transaction,
131                                                   DBusConnection               *connection,
132                                                   const DBusError              *error,
133                                                   DBusMessage                  *in_reply_to);
134 void            bus_transaction_cancel_and_free  (BusTransaction               *transaction);
135 void            bus_transaction_execute_and_free (BusTransaction               *transaction);
136 dbus_bool_t     bus_transaction_add_cancel_hook  (BusTransaction               *transaction,
137                                                   BusTransactionCancelFunction  cancel_function,
138                                                   void                         *data,
139                                                   DBusFreeFunction              free_data_function);
140 
141 /* called by stats.c, only present if DBUS_ENABLE_STATS */
142 int bus_connections_get_n_active                  (BusConnections *connections);
143 int bus_connections_get_n_incomplete              (BusConnections *connections);
144 int bus_connections_get_total_match_rules         (BusConnections *connections);
145 int bus_connections_get_peak_match_rules          (BusConnections *connections);
146 int bus_connections_get_peak_match_rules_per_conn (BusConnections *connections);
147 int bus_connections_get_total_bus_names           (BusConnections *connections);
148 int bus_connections_get_peak_bus_names            (BusConnections *connections);
149 int bus_connections_get_peak_bus_names_per_conn   (BusConnections *connections);
150 
151 int bus_connection_get_peak_match_rules           (DBusConnection *connection);
152 int bus_connection_get_peak_bus_names             (DBusConnection *connection);
153 
154 #endif /* BUS_CONNECTION_H */
155