Top |
gchar * | account-path-suffix | Read / Write / Construct Only |
GDBusConnection * | dbus-connection | Read / Write / Construct Only |
GStrv | interfaces | Read |
gchar * | protocol | Read / Write / Construct Only |
guint | self-handle | Read / Write |
gchar * | self-id | Read |
void | clients-interested | Has Details |
void | clients-uninterested | Has Details |
void | shutdown-finished | Has Details |
void | status-changed | Has Details |
This base class makes it easier to write Connection implementations by managing connection status, channel managers and handle tracking.
# define TP_INTERNAL_CONNECTION_STATUS_NEW ((TpConnectionStatus)(-1))
A special value for TpConnectionStatus, used within GLib connection managers to indicate that the connection is disconnected because connection has never been attempted (as distinct from disconnected after connection has started, either by user request or an error).
Must never be visible on the D-Bus - TP_CONNECTION_STATUS_DISCONNECTED
is sent instead.
GPtrArray *
(*TpBaseConnectionCreateChannelManagersImpl)
(TpBaseConnection *self
);
Signature of an implementation of the create_channel_managers method of TpBaseConnection.
a GPtrArray of objects implementing TpChannelManager which, between them, implement all channel types this Connection supports.
[transfer full]
void (*TpBaseConnectionCreateHandleReposImpl) (TpBaseConnection *self
,TpHandleRepoIface *repos[TP_NUM_ENTITY_TYPES]
);
Signature of an implementation of the create_handle_repos method of TpBaseConnection.
gchar *
(*TpBaseConnectionGetUniqueConnectionNameImpl)
(TpBaseConnection *self
);
Signature of the get_unique_connection_name
virtual method
on TpBaseConnection.
a name for this connection which will be unique within this connection manager process, as a string which the caller must free with g_free.
[transfer full]
void
(*TpBaseConnectionProc) (TpBaseConnection *self
);
Signature of a virtual method on TpBaseConnection that takes no additional parameters and returns nothing.
gboolean (*TpBaseConnectionStartConnectingImpl) (TpBaseConnection *self
,GError **error
);
Signature of an implementation of the start_connecting method of TpBaseConnection.
On entry, the implementation may assume that it is in state NEW.
If TRUE
is returned, the Connect D-Bus method succeeds; the
implementation must either have already set the status to CONNECTED by
calling tp_base_connection_change_status()
, or have arranged for a
status change to either state DISCONNECTED or CONNECTED to be signalled by
calling tp_base_connection_change_status()
at some later time.
If the status is still NEW after returning TRUE
, TpBaseConnection will
automatically change it to CONNECTING for reason REQUESTED.
If FALSE
is returned, the error will be raised from Connect as an
exception. If the status is not DISCONNECTED after FALSE
is returned,
TpBaseConnection will automatically change it to DISCONNECTED
with a reason appropriate to the error; NetworkError results in
NETWORK_ERROR, PermissionDenied results in AUTHENTICATION_FAILED, and all
other errors currently result in NONE_SPECIFIED.
All except the simplest connection managers are expected to implement this
asynchronously, returning TRUE
in most cases and changing the status
to CONNECTED or DISCONNECTED later.
Subclasses may call g_dbus_object_skeleton_add_interface()
at any time before the status reaches CONNECTED. It is considered
to be an error to do so after CONNECTED status has been reached.
const gchar *
tp_base_connection_get_bus_name (TpBaseConnection *self
);
Return the bus name starting with TP_CONN_BUS_NAME_BASE
that represents
this connection on D-Bus.
The returned string belongs to the TpBaseConnection and must be copied by the caller if it will be kept.
If this connection has never been present on D-Bus
(tp_base_connection_register()
has never been called), return NULL
instead.
Since 0.19.1
const gchar *
tp_base_connection_get_object_path (TpBaseConnection *self
);
Return the object path starting with TP_CONN_OBJECT_PATH_BASE
that
represents this connection on D-Bus.
The returned string belongs to the TpBaseConnection and must be copied by the caller if it will be kept.
If this connection has never been present on D-Bus
(tp_base_connection_register()
has never been called), return NULL
instead.
Since 0.19.1
GDBusConnection *
tp_base_connection_get_dbus_connection
(TpBaseConnection *self
);
the value of the
“dbus-connection” property. The caller must reference
the returned object with g_object_ref()
if it will be kept.
[transfer none]
Since 0.11.3
gboolean tp_base_connection_register (TpBaseConnection *self
,const gchar *cm_name
,gchar **bus_name
,gchar **object_path
,GError **error
);
Make the connection object appear on the bus, returning the bus
name and object path used. If TRUE
is returned, the connection owns the
bus name, and will release it when destroyed.
Since 0.11.11, bus_name
and object_path
may be NULL
if the
strings are not needed.
self |
A connection |
|
cm_name |
The name of the connection manager in the Telepathy protocol |
|
bus_name |
Used to return the bus name corresponding to the connection
if |
[out] |
object_path |
Used to return the object path of the connection if
|
[out] |
error |
TpHandleRepoIface * tp_base_connection_get_handles (TpBaseConnection *self
,TpEntityType entity_type
);
the handle repository corresponding to the given entity type, or NULL if it's unsupported or invalid.
[transfer none]
TpHandle
tp_base_connection_get_self_handle (TpBaseConnection *self
);
Returns the “self-handle” property, which is guaranteed not to be 0 once the connection has moved to the CONNECTED state.
Since 0.7.15
void tp_base_connection_set_self_handle (TpBaseConnection *self
,TpHandle self_handle
);
Sets the “self-handle” property. self_handle may not be 0 once the connection has moved to the CONNECTED state.
Since 0.7.15
TpConnectionStatus
tp_base_connection_get_status (TpBaseConnection *self
);
Return the status of this connection, as set by
tp_base_connection_change_status()
or similar functions like
tp_base_connection_disconnect_with_dbus_error()
.
Like the corresponding D-Bus property, this method returns
TP_CONNECTION_STATUS_DISCONNECTED
in two situations:
either the connection is newly-created (and has never emitted
“status-changed”), or D-Bus clients have already been
told that it has been destroyed (by the Disconnect D-Bus method,
a failed attempt to connect, or loss of an established connection).
Use tp_base_connection_is_destroyed()
to distinguish between the two.
Since 0.19.1
gboolean
tp_base_connection_is_destroyed (TpBaseConnection *self
);
Return whether this connection has already emitted the D-Bus signal indicating that it has been destroyed.
In particular, this can be used to distinguish between the two reasons
why tp_base_connection_get_status()
would return
TP_CONNECTION_STATUS_DISCONNECTED
: it will return FALSE
if the
connection is newly-created, and TRUE
if the Disconnect D-Bus method
has been called, an attempt to connect has failed, or an established
connection has encountered an error.
Since 0.19.1
gboolean tp_base_connection_check_connected (TpBaseConnection *self
,GError **error
);
Return whether this connection is fully active and connected.
If it is not, raise TP_ERROR_DISCONNECTED
.
This is equivalent to checking whether tp_base_connection_get_status()
returns TP_CONNECTION_STATUS_CONNECTED
; it is provided because methods
on the connection often need to make this check, and return a
GError if it fails.
Since 0.19.1
void tp_base_connection_change_status (TpBaseConnection *self
,TpConnectionStatus status
,TpConnectionStatusReason reason
);
Change the status of the connection. The allowed state transitions are:
Before the transition to TP_CONNECTION_STATUS_CONNECTED, the implementation
must have discovered the handle for the local user and passed it to
tp_base_connection_set_self_handle()
.
Changing from NEW to CONNECTED is implemented by doing the transition from NEW to CONNECTING, followed by the transition from CONNECTING to CONNECTED; it's exactly equivalent to calling tp_base_connection_change_status for those two transitions one after the other.
Any other valid transition does the following, in this order:
To provide more details about what happened when moving to status
TP_CONNECTION_STATUS_DISCONNECTED due to an error, consider calling
tp_base_connection_disconnect_with_dbus_error()
instead of this function.
Changed in 0.7.35: the self_handle
member of TpBaseConnection was
previously set to 0 at this stage. It now remains non-zero until the object
is disposed.
void tp_base_connection_disconnect_with_dbus_error (TpBaseConnection *self
,const gchar *error_name
,GVariant *details
,TpConnectionStatusReason reason
);
Changes the TpBaseConnection.status of self
to
TP_CONNECTION_STATUS_DISCONNECTED
, as if by a call to
tp_base_connection_change_status()
, but additionally emits the
ConnectionError
D-Bus signal to provide more details about the
error.
Well-known keys for details
are documented in the Telepathy specification's
"debug-message"
, whose value should have type
G_TYPE_STRING, for debugging information about the
disconnection which should not be shown to the user"server-message"
, whose value should also have type
G_TYPE_STRING, for a human-readable error message from the server (in an
unspecified language) explaining why the user was
disconnected.self |
The connection |
|
error_name |
The D-Bus error with which the connection changed status to Disconnected |
|
details |
Further details of the error, as a variant of
type |
|
reason |
The reason code to use in the StatusChanged signal
(a less specific, non-extensible version of |
Since 0.7.24
void
tp_base_connection_finish_shutdown (TpBaseConnection *self
);
Tell the connection manager that this Connection has been disconnected, has emitted StatusChanged and is ready to be removed from D-Bus.
GVariant * tp_base_connection_dup_contact_attributes (TpBaseConnection *self
,const GArray *handles
,const gchar * const *interfaces
,const gchar * const *assumed_interfaces
);
Get contact attributes for the given contacts. Provide attributes for all requested interfaces. If contact attributes are not immediately known, the behaviour is defined by the interface; the attribute should either be omitted from the result or replaced with a default value.
self |
A connection instance. The connection must be connected. |
|
handles |
List of handles to retrieve contacts for. Any invalid handles will be dropped from the returned mapping. |
[element-type guint32] |
interfaces |
an array of user-requested interfaces. |
[allow-none][array zero-terminated=1][element-type utf8] |
assumed_interfaces |
A list of additional interfaces to retrieve attributes
from. This can be used for interfaces documented as automatically included,
like |
[allow-none][array zero-terminated=1][element-type utf8] |
#define TP_BASE_CONNECTION_ERROR_IF_NOT_CONNECTED(conn, context)
If conn
is not in state TP_CONNECTION_STATUS_CONNECTED, complete the
D-Bus method invocation context
by raising the Telepathy error
TP_ERROR_DISCONNECTED, and return from the current function (which
must be void). For use in D-Bus method implementations.
void tp_base_connection_add_possible_client_interest (TpBaseConnection *self
,GQuark token
);
Add token
to the set of tokens for which this connection will emit
“clients-interested” and
“clients-uninterested”.
This method must be called from the GObjectClass.constructed or GObjectClass.constructor callback (otherwise, it will run too late to be useful).
void tp_base_connection_add_client_interest (TpBaseConnection *self
,const gchar *unique_name
,const gchar *token
,gboolean only_if_uninterested
);
Add a "client interest" for token
on behalf of the given client.
This emits “clients-interested” if this was the first time a client expressed an interest in this token.
self |
||
unique_name |
the unique bus name of a D-Bus client |
|
token |
a D-Bus interface or a token representing part of an interface,
added with |
|
only_if_uninterested |
only add to the interest count if the client is not already interested (appropriate for APIs that implicitly subscribe on first use if this has not been done already, like Location) |
const gchar *
tp_base_connection_get_account_path_suffix
(TpBaseConnection *self
);
Since 0.23.2
void tp_base_connection_channel_manager_iter_init (TpChannelManagerIter *iter
,TpBaseConnection *self
);
Initializes an iterator over the TpChannelManager objects known to
self
. It is intended to be used as followed:
1 2 3 4 5 6 7 8 |
TpChannelManagerIter iter; TpChannelManager *manager; tp_base_connection_channel_manager_iter_init (&iter, base_conn); while (tp_base_connection_channel_manager_iter_next (&iter, &manager)) { ...do something with manager... } |
Since 0.7.15
gboolean tp_base_connection_channel_manager_iter_next (TpChannelManagerIter *iter
,TpChannelManager **manager_out
);
Advances iter
, and retrieves the TpChannelManager it now points to. If
there are no more channel managers, manager_out
is not set and FALSE
is
returned.
iter |
an initialized TpChannelManagerIter |
|
manager_out |
a location to store the channel manager, or |
Since 0.7.15
typedef struct _TpBaseConnection TpBaseConnection;
Data structure representing a generic connection implementation.
struct TpBaseConnectionClass { GDBusObjectSkeletonClass parent_class; #ifdef __GI_SCANNER__ #else TpBaseConnectionCreateHandleReposImpl create_handle_repos; #endif TpBaseConnectionGetUniqueConnectionNameImpl get_unique_connection_name; TpBaseConnectionProc connecting; TpBaseConnectionProc connected; TpBaseConnectionProc disconnected; TpBaseConnectionProc shut_down; TpBaseConnectionStartConnectingImpl start_connecting; TpBaseConnectionCreateChannelManagersImpl create_channel_managers; void (*fill_contact_attributes) (TpBaseConnection *self, const gchar *dbus_interface, TpHandle contact, GVariantDict *attributes); };
The class of a TpBaseConnection. Many members are virtual methods etc. to be filled in in the subclass' class_init function.
GDBusObjectSkeletonClass |
The superclass' structure |
|
TpBaseConnectionCreateHandleReposImpl |
Fill in suitable handle repositories in the
given array for all those entity types this Connection supports.
Must be set by subclasses to a non- |
|
TpBaseConnectionGetUniqueConnectionNameImpl |
Construct a unique name for this connection
(for example using the protocol's format for usernames). If |
|
TpBaseConnectionProc |
If set by subclasses, will be called just after the state
changes to CONNECTING. May be |
|
TpBaseConnectionProc |
If set by subclasses, will be called just after the state
changes to CONNECTED. May be |
|
TpBaseConnectionProc |
If set by subclasses, will be called just after the state
changes to DISCONNECTED. May be |
|
TpBaseConnectionProc |
Called after |
|
TpBaseConnectionStartConnectingImpl |
Asynchronously start connecting - called to implement
the Connect D-Bus method. See TpBaseConnectionStartConnectingImpl for
details. May not be left as |
|
TpBaseConnectionCreateChannelManagersImpl |
Create an array of channel managers for this
Connection. This must be set by subclasses to a non- |
|
If |
struct TpChannelManagerIter { };
An iterator over the TpChannelManager objects known to a TpBaseConnection. It has no public fields.
Use tp_base_connection_channel_manager_iter_init()
to start iteration and
tp_base_connection_channel_manager_iter_next()
to continue.
Since 0.7.15
“account-path-suffix”
property“account-path-suffix” gchar *
The suffix of the account object path such as
"gabble/jabber/chris_40example_2ecom0" for the account whose object path is
TP_ACCOUNT_OBJECT_PATH_BASE
+ "gabble/jabber/chris_40example_2ecom0".
The same as returned by tp_account_get_path_suffix()
.
It is given by the AccountManager in the connection parameters. Or NULL
if
the ConnectionManager or the AccountManager are too old.
Flags: Read / Write / Construct Only
Default value: NULL
Since 0.23.2
“dbus-connection”
property“dbus-connection” GDBusConnection *
This object's connection to D-Bus. Read-only except during construction.
If this property is NULL
or omitted during construction, the object will
automatically attempt to connect to the session bus with
g_bus_get_sync()
just after it is constructed; if this fails, this
property will remain NULL
, and tp_base_connection_register()
will fail.
Flags: Read / Write / Construct Only
Since 0.99.10
“interfaces”
property“interfaces” GStrv
The set of D-Bus interfaces available on this Connection, other than Connection itself.
Flags: Read
Since 0.11.3
“protocol”
property“protocol” gchar *
Identifier used in the Telepathy protocol when this connection's protocol name is required.
Flags: Read / Write / Construct Only
Default value: NULL
“self-handle”
property“self-handle” guint
The handle of type TP_ENTITY_TYPE_CONTACT
representing the local user.
Must be set nonzero by the subclass before moving to state CONNECTED.
Flags: Read / Write
Default value: 0
Since 0.7.15
“self-id”
property“self-id” gchar *
The identifier representing the local user. This is the result of inspecting “self-handle”.
Flags: Read
Default value: ""
Since 0.21.2
“clients-interested”
signalvoid user_function (TpBaseConnection *connection, gchar *token, gpointer user_data)
Emitted when a client becomes interested in any token that was added with
tp_base_connection_add_possible_client_interest()
.
The "signal detail" is a GQuark representing token
. Modules implementing
an interface (Location, say) should typically connect to a detailed signal
like
"clients-interested::im.telepathy.v1.Connection.Interface.Location"
rather than receiving all emissions of this signal.
connection |
the TpBaseConnection |
|
token |
the interface or part of an interface in which clients are newly interested |
|
user_data |
user data set when the signal handler was connected. |
Flags: Has Details
“clients-uninterested”
signalvoid user_function (TpBaseConnection *connection, gchar *token, gpointer user_data)
Emitted when no more clients are interested in an interface added with
tp_base_connection_add_possible_client_interest()
, for which
“clients-interested” was previously emitted.
As with “clients-interested”, the "signal detail" is a
GQuark representing token
. Modules implementing an interface (Location,
say) should typically connect to a detailed signal like
"clients-uninterested::im.telepathy.v1.Connection.Interface.Location"
rather than receiving all emissions of this signal.
connection |
the TpBaseConnection |
|
token |
the interface or part of an interface in which clients are no longer interested |
|
user_data |
user data set when the signal handler was connected. |
Flags: Has Details
“shutdown-finished”
signalvoid user_function (TpBaseConnection *connection, gpointer user_data)
Emitted by tp_base_connection_finish_shutdown()
when the underlying
network connection has been closed; TpBaseConnectionManager listens
for this signal and removes connections from its table of active
connections when it is received.
connection |
the TpBaseConnection |
|
user_data |
user data set when the signal handler was connected. |
Flags: Has Details
“status-changed”
signalvoid user_function (TpBaseConnection *connection, guint status, guint reason, gpointer user_data)
Emitted when the status of this connection changes. Mainly for compatibility since TpBaseConnection doesn't implement TpSvcConnection interface anymore.
connection |
the TpBaseConnection |
|
status |
the new TpConnectionStatus |
|
reason |
the TpConnectionStatusReason for this status change |
|
user_data |
user data set when the signal handler was connected. |
Flags: Has Details
Since 0.99.11