summaryrefslogtreecommitdiffstats
path: root/dbus/dbus-connection.h
blob: 12de0c058702c234737bab62c9e223c1ef7749e6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
/* -*- mode: C; c-file-style: "gnu" -*- */
/* dbus-connection.h DBusConnection object
 *
 * Copyright (C) 2002, 2003  Red Hat Inc.
 *
 * Licensed under the Academic Free License version 2.0
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#if !defined (DBUS_INSIDE_DBUS_H) && !defined (DBUS_COMPILATION)
#error "Only <dbus/dbus.h> can be included directly, this file may disappear or change contents."
#endif

#ifndef DBUS_CONNECTION_H
#define DBUS_CONNECTION_H

#include <dbus/dbus-errors.h>
#include <dbus/dbus-memory.h>
#include <dbus/dbus-message.h>
#include <dbus/dbus-shared.h>

DBUS_BEGIN_DECLS;

typedef struct DBusWatch DBusWatch;
typedef struct DBusTimeout DBusTimeout;
typedef struct DBusPreallocatedSend DBusPreallocatedSend;
typedef struct DBusPendingCall DBusPendingCall;
typedef struct DBusConnection DBusConnection;
typedef struct DBusObjectPathVTable DBusObjectPathVTable;

typedef enum
{
  DBUS_WATCH_READABLE = 1 << 0, /**< As in POLLIN */
  DBUS_WATCH_WRITABLE = 1 << 1, /**< As in POLLOUT */
  DBUS_WATCH_ERROR    = 1 << 2, /**< As in POLLERR (can't watch for this, but
                                 *   the flag can be passed to dbus_watch_handle()).
                                 */
  DBUS_WATCH_HANGUP   = 1 << 3  /**< As in POLLHUP (can't watch for it, but
                                 *   can be present in current state). */
} DBusWatchFlags;

typedef enum
{
  DBUS_DISPATCH_DATA_REMAINS,  /**< There is more data to potentially convert to messages. */
  DBUS_DISPATCH_COMPLETE,      /**< All currently available data has been processed. */
  DBUS_DISPATCH_NEED_MEMORY    /**< More memory is needed to continue. */
} DBusDispatchStatus;

typedef dbus_bool_t (* DBusAddWatchFunction)       (DBusWatch      *watch,
                                                    void           *data);
typedef void        (* DBusWatchToggledFunction)   (DBusWatch      *watch,
                                                    void           *data);
typedef void        (* DBusRemoveWatchFunction)    (DBusWatch      *watch,
                                                    void           *data);
typedef dbus_bool_t (* DBusAddTimeoutFunction)     (DBusTimeout    *timeout,
                                                    void           *data);
typedef void        (* DBusTimeoutToggledFunction) (DBusTimeout    *timeout,
                                                    void           *data);
typedef void        (* DBusRemoveTimeoutFunction)  (DBusTimeout    *timeout,
                                                    void           *data);
typedef void        (* DBusDispatchStatusFunction) (DBusConnection *connection,
                                                    DBusDispatchStatus new_status,
                                                    void           *data);
typedef void        (* DBusWakeupMainFunction)     (void           *data);
typedef dbus_bool_t (* DBusAllowUnixUserFunction)  (DBusConnection *connection,
                                                    unsigned long   uid,
                                                    void           *data);

typedef void (* DBusPendingCallNotifyFunction) (DBusPendingCall *pending,
                                                void            *user_data);


typedef DBusHandlerResult (* DBusHandleMessageFunction) (DBusConnection     *connection,
                                                         DBusMessage        *message,
                                                         void               *user_data);

DBusConnection*    dbus_connection_open                         (const char                 *address,
                                                                 DBusError                  *error);
DBusConnection*    dbus_connection_ref                          (DBusConnection             *connection);
void               dbus_connection_unref                        (DBusConnection             *connection);
void               dbus_connection_disconnect                   (DBusConnection             *connection);
dbus_bool_t        dbus_connection_get_is_connected             (DBusConnection             *connection);
dbus_bool_t        dbus_connection_get_is_authenticated         (DBusConnection             *connection);
void               dbus_connection_set_exit_on_disconnect       (DBusConnection             *connection,
                                                                 dbus_bool_t                 exit_on_disconnect);
void               dbus_connection_flush                        (DBusConnection             *connection);
DBusMessage*       dbus_connection_borrow_message               (DBusConnection             *connection);
void               dbus_connection_return_message               (DBusConnection             *connection,
                                                                 DBusMessage                *message);
void               dbus_connection_steal_borrowed_message       (DBusConnection             *connection,
                                                                 DBusMessage                *message);
DBusMessage*       dbus_connection_pop_message                  (DBusConnection             *connection);
DBusDispatchStatus dbus_connection_get_dispatch_status          (DBusConnection             *connection);
DBusDispatchStatus dbus_connection_dispatch                     (DBusConnection             *connection);
dbus_bool_t        dbus_connection_send                         (DBusConnection             *connection,
                                                                 DBusMessage                *message,
                                                                 dbus_uint32_t              *client_serial);
dbus_bool_t        dbus_connection_send_with_reply              (DBusConnection             *connection,
                                                                 DBusMessage                *message,
                                                                 DBusPendingCall           **pending_return,
                                                                 int                         timeout_milliseconds);
DBusMessage *      dbus_connection_send_with_reply_and_block    (DBusConnection             *connection,
                                                                 DBusMessage                *message,
                                                                 int                         timeout_milliseconds,
                                                                 DBusError                  *error);
dbus_bool_t        dbus_connection_set_watch_functions          (DBusConnection             *connection,
                                                                 DBusAddWatchFunction        add_function,
                                                                 DBusRemoveWatchFunction     remove_function,
                                                                 DBusWatchToggledFunction    toggled_function,
                                                                 void                       *data,
                                                                 DBusFreeFunction            free_data_function);
dbus_bool_t        dbus_connection_set_timeout_functions        (DBusConnection             *connection,
                                                                 DBusAddTimeoutFunction      add_function,
                                                                 DBusRemoveTimeoutFunction   remove_function,
                                                                 DBusTimeoutToggledFunction  toggled_function,
                                                                 void                       *data,
                                                                 DBusFreeFunction            free_data_function);
void               dbus_connection_set_wakeup_main_function     (DBusConnection             *connection,
                                                                 DBusWakeupMainFunction      wakeup_main_function,
                                                                 void                       *data,
                                                                 DBusFreeFunction            free_data_function);
void               dbus_connection_set_dispatch_status_function (DBusConnection             *connection,
                                                                 DBusDispatchStatusFunction  function,
                                                                 void                       *data,
                                                                 DBusFreeFunction            free_data_function);
dbus_bool_t        dbus_connection_get_unix_user                (DBusConnection             *connection,
                                                                 unsigned long              *uid);
dbus_bool_t        dbus_connection_get_unix_process_id          (DBusConnection             *connection,
                                                                 unsigned long              *pid);
void               dbus_connection_set_unix_user_function       (DBusConnection             *connection,
                                                                 DBusAllowUnixUserFunction   function,
                                                                 void                       *data,
                                                                 DBusFreeFunction            free_data_function);


int          dbus_watch_get_fd      (DBusWatch        *watch);
unsigned int dbus_watch_get_flags   (DBusWatch        *watch);
void*        dbus_watch_get_data    (DBusWatch        *watch);
void         dbus_watch_set_data    (DBusWatch        *watch,
                                     void             *data,
                                     DBusFreeFunction  free_data_function);
dbus_bool_t  dbus_watch_handle      (DBusWatch        *watch,
                                     unsigned int      flags);
dbus_bool_t  dbus_watch_get_enabled (DBusWatch        *watch);

int         dbus_timeout_get_interval (DBusTimeout      *timeout);
void*       dbus_timeout_get_data     (DBusTimeout      *timeout);
void        dbus_timeout_set_data     (DBusTimeout      *timeout,
                                       void             *data,
                                       DBusFreeFunction  free_data_function);
dbus_bool_t dbus_timeout_handle       (DBusTimeout      *timeout);
dbus_bool_t dbus_timeout_get_enabled  (DBusTimeout      *timeout);

/* Filters */

dbus_bool_t dbus_connection_add_filter    (DBusConnection            *connection,
                                           DBusHandleMessageFunction  function,
                                           void                      *user_data,
                                           DBusFreeFunction           free_data_function);
void        dbus_connection_remove_filter (DBusConnection            *connection,
                                           DBusHandleMessageFunction  function,
                                           void                      *user_data);


/* Other */
dbus_bool_t dbus_connection_allocate_data_slot (dbus_int32_t     *slot_p);
void        dbus_connection_free_data_slot     (dbus_int32_t     *slot_p);
dbus_bool_t dbus_connection_set_data           (DBusConnection   *connection,
                                                dbus_int32_t      slot,
                                                void             *data,
                                                DBusFreeFunction  free_data_func);
void*       dbus_connection_get_data           (DBusConnection   *connection,
                                                dbus_int32_t      slot);

void        dbus_connection_set_change_sigpipe (dbus_bool_t       will_modify_sigpipe); 

void dbus_connection_set_max_message_size  (DBusConnection *connection,
                                            long            size);
long dbus_connection_get_max_message_size  (DBusConnection *connection);
void dbus_connection_set_max_received_size (DBusConnection *connection,
                                            long            size);
long dbus_connection_get_max_received_size (DBusConnection *connection);
long dbus_connection_get_outgoing_size     (DBusConnection *connection);

DBusPreallocatedSend* dbus_connection_preallocate_send       (DBusConnection       *connection);
void                  dbus_connection_free_preallocated_send (DBusConnection       *connection,
                                                              DBusPreallocatedSend *preallocated);
void                  dbus_connection_send_preallocated      (DBusConnection       *connection,
                                                              DBusPreallocatedSend *preallocated,
                                                              DBusMessage          *message,
                                                              dbus_uint32_t        *client_serial);


/* Object tree functionality */

typedef void              (* DBusObjectPathUnregisterFunction) (DBusConnection  *connection,
                                                                void            *user_data);
typedef DBusHandlerResult (* DBusObjectPathMessageFunction)    (DBusConnection  *connection,
                                                                DBusMessage     *message,
                                                                void            *user_data);

/**
 * Virtual table that must be implemented to handle a portion of the
 * object path hierarchy.
 */
struct DBusObjectPathVTable
{
  DBusObjectPathUnregisterFunction   unregister_function; /**< Function to unregister this handler */
  DBusObjectPathMessageFunction      message_function; /**< Function to handle messages */
  
  void (* dbus_internal_pad1) (void *); /**< Reserved for future expansion */
  void (* dbus_internal_pad2) (void *); /**< Reserved for future expansion */
  void (* dbus_internal_pad3) (void *); /**< Reserved for future expansion */
  void (* dbus_internal_pad4) (void *); /**< Reserved for future expansion */
};

dbus_bool_t dbus_connection_register_object_path   (DBusConnection              *connection,
                                                    const char                  *path,
                                                    const DBusObjectPathVTable  *vtable,
                                                    void                        *user_data);
dbus_bool_t dbus_connection_register_fallback      (DBusConnection              *connection,
                                                    const char                  *path,
                                                    const DBusObjectPathVTable  *vtable,
                                                    void                        *user_data);
dbus_bool_t dbus_connection_unregister_object_path (DBusConnection              *connection,
                                                    const char                  *path);

dbus_bool_t dbus_connection_list_registered        (DBusConnection              *connection,
                                                    const char                  *parent_path,
                                                    char                      ***child_entries);

DBUS_END_DECLS;

#endif /* DBUS_CONNECTION_H */