TpChannelRequest

typedef struct _TpChannelRequest TpChannelRequest;

Requesting a channel from the channel dispatcher can take some time, so an object is created in the channel dispatcher to represent each request. This proxy represents one of those objects.

Any client can call tp_cli_channel_request_call_cancel() at any time to attempt to cancel the request.

On success, the "succeeded" signal will be emitted. Immediately after that, the "invalidated" signal will be emitted, with the domain TP_DBUS_ERRORS and the error code TP_DBUS_ERROR_OBJECT_REMOVED (this is not an error condition, it merely indicates that the channel request no longer exists).

On failure, the "invalidated" signal will be emitted with some other suitable error, usually from the TP_ERRORS domain.

If the channel dispatcher crashes or exits, the "invalidated" signal will be emitted with the domain TP_DBUS_ERRORS and the error code TP_DBUS_ERROR_NAME_OWNER_LOST.

This proxy is usable but incomplete: accessors for the Account, UserActionTime, PreferredHandler, Requests and Interfaces properties will be added in a later version of telepathy-glib, along with a mechanism similar to tp_connection_call_when_ready().

Until suitable convenience methods are implemented, the generic tp_cli_dbus_properties_call_get_all() method can be used to get those properties.

Since 0.7.32

TpChannelRequestClass

typedef struct {
} TpChannelRequestClass;

The class of a TpChannelRequest.

tp_channel_request_new ()

TpChannelRequest*   tp_channel_request_new              (TpDBusDaemon *bus_daemon,
                                                         const gchar *object_path,
                                                         GHashTable *immutable_properties,
                                                         GError **error);

Convenience function to create a new channel request proxy.

If the channel request was newly created, the client making the request is responsible for calling tp_cli_channel_request_call_proceed() when it is ready for the channel request to proceed.

The immutable_properties argument is not yet used.

tp_channel_request_init_known_interfaces ()

void                tp_channel_request_init_known_interfaces
                                                        (void);

Ensure that the known interfaces for TpChannelRequest have been set up. This is done automatically when necessary, but for correct overriding of library interfaces by local extensions, you should call this function before calling tp_proxy_or_subclass_hook_on_interface_add() with first argument TP_TYPE_CHANNEL_REQUEST.

Since 0.7.32

tp_cli_channel_request_callback_for_cancel ()

void                (*tp_cli_channel_request_callback_for_cancel)
                                                        (TpChannelRequest *proxy,
                                                         const GError *error,
                                                         gpointer user_data,
                                                         GObject *weak_object);

Signature of the callback called when a Cancel method call succeeds or fails.

tp_cli_channel_request_call_cancel ()

TpProxyPendingCall* tp_cli_channel_request_call_cancel  (TpChannelRequest *proxy,
                                                         gint timeout_ms,
                                                         tp_cli_channel_request_callback_for_cancel callback,
                                                         gpointer user_data,
                                                         GDestroyNotify destroy,
                                                         GObject *weak_object);

Start a Cancel method call.

<tp:docstring xmlns="http://www.w3.org/1999/xhtml"> <p>Cancel the channel request. The precise effect depends on the current progress of the request.</p> <p>If the connection manager has not already been asked to create a channel, then <tp:member-ref>Failed</tp:member-ref> is emitted immediately, and the channel request is removed.</p> <p>If the connection manager has already been asked to create a channel but has not produced one yet (e.g. if <tp:dbus-ref namespace="org.freedesktop.Telepathy">Connection.Interface.Requests.CreateChannel</tp:dbus-ref> has been called, but has not yet returned), then the ChannelDispatcher will remember that the request has been cancelled. When the channel appears, it will be closed (if it was newly created and can be closed), and will not be dispatched to a handler.</p> <p>If the connection manager has already returned a channel, but the channel has not yet been dispatched to a handler then the channel dispatcher will not dispatch that channel to a handler. If the channel was newly created for this request, the channel dispatcher will close it with <tp:dbus-ref namespace="org.freedesktop.Telepathy.Channel">Close</tp:dbus-ref>; otherwise, the channel dispatcher will ignore it. In either case, <tp:member-ref>Failed</tp:member-ref> will be emitted when processing has been completed.</p> <p>If <tp:member-ref>Failed</tp:member-ref> is emitted in response to this method, the error SHOULD be <code>org.freedesktop.Telepathy.Error.Cancelled</code>.</p> <p>If the channel has already been dispatched to a handler, then it's too late to call this method, and the channel request will no longer exist.</p>

tp_cli_channel_request_callback_for_proceed ()

void                (*tp_cli_channel_request_callback_for_proceed)
                                                        (TpChannelRequest *proxy,
                                                         const GError *error,
                                                         gpointer user_data,
                                                         GObject *weak_object);

Signature of the callback called when a Proceed method call succeeds or fails.

tp_cli_channel_request_call_proceed ()

TpProxyPendingCall* tp_cli_channel_request_call_proceed (TpChannelRequest *proxy,
                                                         gint timeout_ms,
                                                         tp_cli_channel_request_callback_for_proceed callback,
                                                         gpointer user_data,
                                                         GDestroyNotify destroy,
                                                         GObject *weak_object);

Start a Proceed method call.

<tp:docstring xmlns="http://www.w3.org/1999/xhtml"> <p>Proceed with the channel request.</p> <tp:rationale> <p>The client that created this object calls this method when it has connected signal handlers for <tp:member-ref>Succeeded</tp:member-ref> and <tp:member-ref>Failed</tp:member-ref>.</p> </tp:rationale> <p>Clients other than the client which created the ChannelRequest MUST NOT call this method.</p> <p>This method SHOULD return immediately; on success, the request might still fail, but this will be indicated asynchronously by the <tp:member-ref>Failed</tp:member-ref> signal.</p> <p>Proceed cannot fail, unless clients have got the life-cycle of a ChannelRequest seriously wrong (e.g. a client calls this method twice, or a client that did not create the ChannelRequest calls this method). If it fails, clients SHOULD assume that the whole ChannelRequest has become useless.</p>

tp_cli_channel_request_signal_callback_failed ()

void                (*tp_cli_channel_request_signal_callback_failed)
                                                        (TpChannelRequest *proxy,
                                                         const gchar *arg_Error,
                                                         const gchar *arg_Message,
                                                         gpointer user_data,
                                                         GObject *weak_object);

Represents the signature of a callback for the signal Failed.

tp_cli_channel_request_connect_to_failed ()

TpProxySignalConnection* tp_cli_channel_request_connect_to_failed
                                                        (TpChannelRequest *proxy,
                                                         tp_cli_channel_request_signal_callback_failed callback,
                                                         gpointer user_data,
                                                         GDestroyNotify destroy,
                                                         GObject *weak_object,
                                                         GError **error);

Connect a handler to the signal Failed.

<tp:docstring xmlns="http://www.w3.org/1999/xhtml"> <p>The channel request has failed. It is no longer present, and further methods must not be called on it.</p>

tp_cli_channel_request_signal_callback_succeeded ()

void                (*tp_cli_channel_request_signal_callback_succeeded)
                                                        (TpChannelRequest *proxy,
                                                         gpointer user_data,
                                                         GObject *weak_object);

Represents the signature of a callback for the signal Succeeded.

tp_cli_channel_request_connect_to_succeeded ()

TpProxySignalConnection* tp_cli_channel_request_connect_to_succeeded
                                                        (TpChannelRequest *proxy,
                                                         tp_cli_channel_request_signal_callback_succeeded callback,
                                                         gpointer user_data,
                                                         GDestroyNotify destroy,
                                                         GObject *weak_object,
                                                         GError **error);

Connect a handler to the signal Succeeded.

<tp:docstring xmlns="http://www.w3.org/1999/xhtml"> <p>The channel request has succeeded. It is no longer present, and further methods must not be called on it.</p>

The "succeeded" signal

void                user_function                      (TpChannelRequest *self,
                                                        gpointer          user_data)      : Run Last / Has Details

Emitted when the channel request succeeds.