1 /* -*- mode: C; c-file-style: "gnu" -*- */
2 /* dbus-transport-protected.h Used by subclasses of DBusTransport object (internal to D-BUS implementation)
4 * Copyright (C) 2002 Red Hat Inc.
6 * Licensed under the Academic Free License version 2.0
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
23 #ifndef DBUS_TRANSPORT_PROTECTED_H
24 #define DBUS_TRANSPORT_PROTECTED_H
26 #include <dbus/dbus-internals.h>
27 #include <dbus/dbus-errors.h>
28 #include <dbus/dbus-transport.h>
29 #include <dbus/dbus-message-internal.h>
30 #include <dbus/dbus-auth.h>
31 #include <dbus/dbus-resources.h>
35 typedef struct DBusTransportVTable DBusTransportVTable;
38 * The virtual table that must be implemented to
39 * create a new kind of transport.
41 struct DBusTransportVTable
43 void (* finalize) (DBusTransport *transport);
44 /**< The finalize method must free the transport. */
46 dbus_bool_t (* handle_watch) (DBusTransport *transport,
49 /**< The handle_watch method handles reading/writing
50 * data as indicated by the flags.
53 void (* disconnect) (DBusTransport *transport);
54 /**< Disconnect this transport. */
56 dbus_bool_t (* connection_set) (DBusTransport *transport);
57 /**< Called when transport->connection has been filled in */
59 void (* messages_pending) (DBusTransport *transport,
61 /**< Called when the outgoing message queue goes from empty
62 * to non-empty or vice versa.
65 void (* do_iteration) (DBusTransport *transport,
67 int timeout_milliseconds);
68 /**< Called to do a single "iteration" (block on select/poll
69 * followed by reading or writing data).
72 void (* live_messages_changed) (DBusTransport *transport);
73 /**< Outstanding messages counter changed */
75 dbus_bool_t (* get_unix_fd) (DBusTransport *transport,
77 /**< Get UNIX file descriptor */
81 * Object representing a transport such as a socket.
82 * A transport can shuttle messages from point A to point B,
83 * and is the backend for a #DBusConnection.
88 int refcount; /**< Reference count. */
90 const DBusTransportVTable *vtable; /**< Virtual methods for this instance. */
92 DBusConnection *connection; /**< Connection owning this transport. */
94 DBusMessageLoader *loader; /**< Message-loading buffer. */
96 DBusAuth *auth; /**< Authentication conversation */
98 DBusCredentials credentials; /**< Credentials of other end */
100 long max_live_messages_size; /**< Max total size of received messages. */
102 DBusCounter *live_messages_size; /**< Counter for size of all live messages. */
105 char *address; /**< Address of this server */
107 DBusAllowUnixUserFunction unix_user_function; /**< Function for checking whether a user is authorized. */
108 void *unix_user_data; /**< Data for unix_user_function */
110 DBusFreeFunction free_unix_user_data; /**< Function to free unix_user_data */
112 unsigned int disconnected : 1; /**< #TRUE if we are disconnected. */
113 unsigned int authenticated : 1; /**< Cache of auth state; use _dbus_transport_get_is_authenticated() to query value */
114 unsigned int messages_need_sending : 1; /**< #TRUE if we need to write messages out */
115 unsigned int send_credentials_pending : 1; /**< #TRUE if we need to send credentials */
116 unsigned int receive_credentials_pending : 1; /**< #TRUE if we need to receive credentials */
117 unsigned int is_server : 1; /**< #TRUE if on the server side */
118 unsigned int unused_bytes_recovered : 1; /**< #TRUE if we've recovered unused bytes from auth */
121 dbus_bool_t _dbus_transport_init_base (DBusTransport *transport,
122 const DBusTransportVTable *vtable,
124 const DBusString *address);
125 void _dbus_transport_finalize_base (DBusTransport *transport);
131 #endif /* DBUS_TRANSPORT_PROTECTED_H */