D-Bus: dbus-server-protected.h Source File

D-Bus 1.16.2

dbus-server-protected.h
1/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2/* dbus-server-protected.h Used by subclasses of DBusServer object (internal to D-Bus implementation)
3 *
4 * Copyright (C) 2002 Red Hat Inc.
5 *
6 * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
7 *
8 * Licensed under the Academic Free License version 2.1
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 *
24 */
25#ifndef DBUS_SERVER_PROTECTED_H
26#define DBUS_SERVER_PROTECTED_H
27
28#include <dbus/dbus-internals.h>
29#include <dbus/dbus-threads-internal.h>
30#include <dbus/dbus-server.h>
31#include <dbus/dbus-address.h>
32#include <dbus/dbus-timeout.h>
33#include <dbus/dbus-watch.h>
34#include <dbus/dbus-resources.h>
35#include <dbus/dbus-dataslot.h>
36#include <dbus/dbus-string.h>
37
38 DBUS_BEGIN_DECLS
39
40typedef struct DBusServerVTable DBusServerVTable;
41
45 struct DBusServerVTable
46{
47 void (* finalize) (DBusServer *server);
49
50 void (* disconnect) (DBusServer *server);
52};
53
58 struct DBusServer
59{
60 DBusAtomic refcount;
61 const DBusServerVTable *vtable;
62 DBusRMutex *mutex;
63
64 DBusGUID guid;
65
66 DBusString guid_hex;
67
68 DBusWatchList *watches;
69 DBusTimeoutList *timeouts;
70
71 char *address;
72 dbus_bool_t published_address;
73
74 int max_connections;
75
76 DBusDataSlotList slot_list;
77
78 DBusNewConnectionFunction new_connection_function;
80 void *new_connection_data;
82 DBusFreeFunction new_connection_free_data_function;
86
87 char **auth_mechanisms;
88
89 unsigned int disconnected : 1;
90
91#ifndef DBUS_DISABLE_CHECKS
92 unsigned int have_server_lock : 1;
93#endif
94};
95
96 dbus_bool_t _dbus_server_init_base (DBusServer *server,
97 const DBusServerVTable *vtable,
98 const DBusString *address,
99 DBusError *error);
100void _dbus_server_finalize_base (DBusServer *server);
101void _dbus_server_disconnect_unlocked (DBusServer *server);
102 dbus_bool_t _dbus_server_add_watch (DBusServer *server,
103 DBusWatch *watch);
104void _dbus_server_remove_watch (DBusServer *server,
105 DBusWatch *watch);
106DBUS_PRIVATE_EXPORT
107void _dbus_server_toggle_all_watches (DBusServer *server,
108 dbus_bool_t enabled);
109 dbus_bool_t _dbus_server_add_timeout (DBusServer *server,
110 DBusTimeout *timeout);
111void _dbus_server_remove_timeout (DBusServer *server,
112 DBusTimeout *timeout);
113void _dbus_server_toggle_timeout (DBusServer *server,
114 DBusTimeout *timeout,
115 dbus_bool_t enabled);
116
117DBUS_PRIVATE_EXPORT
118void _dbus_server_ref_unlocked (DBusServer *server);
119DBUS_PRIVATE_EXPORT
120void _dbus_server_unref_unlocked (DBusServer *server);
121
122typedef enum
123{
124 DBUS_SERVER_LISTEN_NOT_HANDLED,
125 DBUS_SERVER_LISTEN_OK,
126 DBUS_SERVER_LISTEN_BAD_ADDRESS,
127 DBUS_SERVER_LISTEN_DID_NOT_CONNECT,
128 DBUS_SERVER_LISTEN_ADDRESS_ALREADY_USED
129} DBusServerListenResult;
130
131DBusServerListenResult _dbus_server_listen_unix_socket (DBusAddressEntry *entry,
132 DBusServer **server_p,
133 DBusError *error);
134
135DBusServerListenResult _dbus_server_listen_platform_specific (DBusAddressEntry *entry,
136 DBusServer **server_p,
137 DBusError *error);
138
139#ifdef DBUS_ENABLE_VERBOSE_MODE
140void _dbus_server_trace_ref (DBusServer *server,
141 int old_refcount,
142 int new_refcount,
143 const char *why);
144#else
145#define _dbus_server_trace_ref(s,o,n,w) \
146 do \
147 {\
148 (void) (o); \
149 (void) (n); \
150 } while (0)
151#endif
152
153#ifdef DBUS_DISABLE_CHECKS
154#define TOOK_LOCK_CHECK(server)
155#define RELEASING_LOCK_CHECK(server)
156#define HAVE_LOCK_CHECK(server)
157#else
158#define TOOK_LOCK_CHECK(server) do { \
159 _dbus_assert (!(server)->have_server_lock); \
160 (server)->have_server_lock = TRUE; \
161 } while (0)
162#define RELEASING_LOCK_CHECK(server) do { \
163 _dbus_assert ((server)->have_server_lock); \
164 (server)->have_server_lock = FALSE; \
165 } while (0)
166#define HAVE_LOCK_CHECK(server) _dbus_assert ((server)->have_server_lock)
167/* A "DO_NOT_HAVE_LOCK_CHECK" is impossible since we need the lock to check the flag */
168#endif
169
170#define TRACE_LOCKS 0
171
172#define SERVER_LOCK(server) do { \
173 if (TRACE_LOCKS) { _dbus_verbose ("LOCK\n"); } \
174 _dbus_rmutex_lock ((server)->mutex); \
175 TOOK_LOCK_CHECK (server); \
176 } while (0)
177
178#define SERVER_UNLOCK(server) do { \
179 if (TRACE_LOCKS) { _dbus_verbose ("UNLOCK\n"); } \
180 RELEASING_LOCK_CHECK (server); \
181 _dbus_rmutex_unlock ((server)->mutex); \
182 } while (0)
183
184 DBUS_END_DECLS
185
186#endif /* DBUS_SERVER_PROTECTED_H */
DBUS_BEGIN_DECLS
#define DBUS_BEGIN_DECLS
Macro used prior to declaring functions in the D-Bus header files.
Definition dbus-macros.h:36
DBUS_END_DECLS
#define DBUS_END_DECLS
Macro used after declaring functions in the D-Bus header files.
Definition dbus-macros.h:37
DBusFreeFunction
void(* DBusFreeFunction)(void *memory)
The type of a function which frees a block of memory.
Definition dbus-memory.h:65
_dbus_server_add_watch
dbus_bool_t _dbus_server_add_watch(DBusServer *server, DBusWatch *watch)
Adds a watch for this server, chaining out to application-provided watch handlers.
Definition dbus-server.c:297
_dbus_server_remove_watch
void _dbus_server_remove_watch(DBusServer *server, DBusWatch *watch)
Removes a watch previously added with _dbus_server_remove_watch().
Definition dbus-server.c:313
_dbus_server_remove_timeout
void _dbus_server_remove_timeout(DBusServer *server, DBusTimeout *timeout)
Removes a timeout previously added with _dbus_server_add_timeout().
Definition dbus-server.c:421
_dbus_server_unref_unlocked
DBUS_PRIVATE_EXPORT void _dbus_server_unref_unlocked(DBusServer *server)
Like dbus_server_unref() but does not acquire the lock (must already be held)
Definition dbus-server.c:476
_dbus_server_toggle_timeout
void _dbus_server_toggle_timeout(DBusServer *server, DBusTimeout *timeout, dbus_bool_t enabled)
Toggles a timeout and notifies app via server's DBusTimeoutToggledFunction if available.
Definition dbus-server.c:440
_dbus_server_add_timeout
dbus_bool_t _dbus_server_add_timeout(DBusServer *server, DBusTimeout *timeout)
Adds a timeout for this server, chaining out to application-provided timeout handlers.
Definition dbus-server.c:406
_dbus_server_init_base
dbus_bool_t _dbus_server_init_base(DBusServer *server, const DBusServerVTable *vtable, const DBusString *address, DBusError *error)
Initializes the members of the DBusServer base class.
Definition dbus-server.c:113
_dbus_server_finalize_base
void _dbus_server_finalize_base(DBusServer *server)
Finalizes the members of the DBusServer base class.
Definition dbus-server.c:202
_dbus_server_ref_unlocked
DBUS_PRIVATE_EXPORT void _dbus_server_ref_unlocked(DBusServer *server)
Like dbus_server_ref() but does not acquire the lock (must already be held)
Definition dbus-server.c:457
_dbus_server_toggle_all_watches
DBUS_PRIVATE_EXPORT void _dbus_server_toggle_all_watches(DBusServer *server, dbus_bool_t enabled)
Toggles all watch and notifies app via server's DBusWatchToggledFunction if available.
Definition dbus-server.c:331
_dbus_server_listen_unix_socket
DBusServerListenResult _dbus_server_listen_unix_socket(DBusAddressEntry *entry, DBusServer **server_p, DBusError *error)
Tries to interpret the address entry for UNIX socket addresses.
Definition dbus-server-socket.c:761
_dbus_server_listen_platform_specific
DBusServerListenResult _dbus_server_listen_platform_specific(DBusAddressEntry *entry, DBusServer **server_p, DBusError *error)
Tries to interpret the address entry in a platform-specific way, creating a platform-specific server ...
Definition dbus-server-unix.c:55
DBusNewConnectionFunction
void(* DBusNewConnectionFunction)(DBusServer *server, DBusConnection *new_connection, void *data)
Called when a new connection to the server is available.
Definition dbus-server.h:50
dbus_bool_t
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition dbus-types.h:37
DBusAddressEntry
Internals of DBusAddressEntry.
Definition dbus-address.c:49
DBusAtomic
An atomic integer safe to increment or decrement from multiple threads.
Definition dbus-sysdeps.h:340
DBusDataSlotList
Data structure that stores the actual user data set at a given slot.
Definition dbus-dataslot.h:72
DBusError
Object representing an exception.
Definition dbus-errors.h:51
DBusRMutex
Definition dbus-sysdeps-pthread.c:51
DBusServerVTable
Virtual table to be implemented by all server "subclasses".
Definition dbus-server-protected.h:46
DBusServerVTable::disconnect
void(* disconnect)(DBusServer *server)
Disconnect this server.
Definition dbus-server-protected.h:50
DBusServerVTable::finalize
void(* finalize)(DBusServer *server)
The finalize method must free the server.
Definition dbus-server-protected.h:47
DBusServer
Internals of DBusServer object.
Definition dbus-server-protected.h:59
DBusServer::published_address
dbus_bool_t published_address
flag which indicates that server has published its bus address.
Definition dbus-server-protected.h:72
DBusServer::slot_list
DBusDataSlotList slot_list
Data stored by allocated integer ID.
Definition dbus-server-protected.h:76
DBusServer::address
char * address
Address this server is listening on.
Definition dbus-server-protected.h:71
DBusServer::new_connection_free_data_function
DBusFreeFunction new_connection_free_data_function
Callback to invoke to free new_connection_data when server is finalized or data is replaced.
Definition dbus-server-protected.h:82
DBusServer::refcount
DBusAtomic refcount
Reference count.
Definition dbus-server-protected.h:60
DBusServer::watches
DBusWatchList * watches
Our watches.
Definition dbus-server-protected.h:68
DBusServer::guid
DBusGUID guid
Globally unique ID of server.
Definition dbus-server-protected.h:64
DBusServer::guid_hex
DBusString guid_hex
Hex-encoded version of GUID.
Definition dbus-server-protected.h:66
DBusServer::disconnected
unsigned int disconnected
TRUE if we are disconnected.
Definition dbus-server-protected.h:89
DBusServer::mutex
DBusRMutex * mutex
Lock on the server object.
Definition dbus-server-protected.h:62
DBusServer::max_connections
int max_connections
Max number of connections allowed at once.
Definition dbus-server-protected.h:74
DBusServer::new_connection_function
DBusNewConnectionFunction new_connection_function
Callback to invoke when a new connection is created.
Definition dbus-server-protected.h:78
DBusServer::vtable
const DBusServerVTable * vtable
Virtual methods for this instance.
Definition dbus-server-protected.h:61
DBusServer::new_connection_data
void * new_connection_data
Data for new connection callback.
Definition dbus-server-protected.h:80
DBusServer::have_server_lock
unsigned int have_server_lock
Does someone have the server mutex locked.
Definition dbus-server-protected.h:92
DBusServer::auth_mechanisms
char ** auth_mechanisms
Array of allowed authentication mechanisms.
Definition dbus-server-protected.h:87
DBusServer::timeouts
DBusTimeoutList * timeouts
Our timeouts.
Definition dbus-server-protected.h:69
DBusString
Definition dbus-string.h:47
DBusTimeoutList
DBusTimeoutList implementation details.
Definition dbus-timeout.c:183
DBusTimeout
Internals of DBusTimeout.
Definition dbus-timeout.c:43
DBusWatchList
DBusWatchList implementation details.
Definition dbus-watch.c:217
DBusWatch
Implementation of DBusWatch.
Definition dbus-watch.c:43
DBusGUID
A globally unique ID ; we have one for each DBusServer, and also one for each machine with libdbus in...
Definition dbus-internals.h:458