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<?xml version="1.0" ?>
<node name="/Channel_Interface_Destroyable"
xmlns:tp="http://telepathy.freedesktop.org/wiki/DbusSpec#extensions-v0">
<tp:copyright>Copyright (C) 2008 Collabora Ltd.</tp:copyright>
<tp:copyright>Copyright (C) 2008 Nokia Corporation</tp:copyright>
<tp:license xmlns="http://www.w3.org/1999/xhtml">
<p>This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.</p>
<p>This library 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
Lesser General Public License for more details.</p>
<p>You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA.</p>
</tp:license>
<interface
name="org.freedesktop.Telepathy.Channel.Interface.Destroyable">
<tp:requires interface="org.freedesktop.Telepathy.Channel"/>
<tp:added version="0.17.14">(as stable API)</tp:added>
<tp:docstring xmlns="http://www.w3.org/1999/xhtml">
<p>This interface exists to support channels where
<tp:dbus-ref
namespace="org.freedesktop.Telepathy">Channel.Close</tp:dbus-ref>
is insufficiently destructive. At the moment this means
<tp:dbus-ref
namespace="org.freedesktop.Telepathy">Channel.Type.Text</tp:dbus-ref>,
but the existence of this interface means that unsupported channels
can be terminated in a non-channel-type-specific way.</p>
</tp:docstring>
<method name="Destroy" tp:name-for-bindings="Destroy">
<tp:docstring xmlns="http://www.w3.org/1999/xhtml">
<p>Close the channel abruptly, possibly with loss of data. The
connection manager MUST NOT re-create the channel unless/until
more events occur.</p>
<tp:rationale>
<p>The main motivating situation for this method is that when a Text
channel with pending messages is closed with Close, it comes back
as an incoming channel (to avoid a race between Close and an
incoming message). If Destroy is called on a Text channel, the CM
should delete all pending messages and close the channel, and
the channel shouldn't be re-created until/unless another message
arrives.</p>
</tp:rationale>
<p>Most clients SHOULD call
<tp:dbus-ref
namespace="org.freedesktop.Telepathy">Channel.Close</tp:dbus-ref>
instead. However, if a client explicitly intends to destroy the
channel with possible loss of data, it SHOULD call this method
if this interface is supported (according to the
<tp:dbus-ref
namespace="org.freedesktop.Telepathy">Channel.Interfaces</tp:dbus-ref>
property), falling back to Close if not.</p>
<p>In particular, channel dispatchers SHOULD use this method if
available when terminating channels that cannot be handled
correctly (for instance, if no handler has been installed for
a channel type, or if the handler crashes repeatedly).</p>
<p>Connection managers do not need to implement this interface on
channels where Close and Destroy would be equivalent.</p>
<tp:rationale>
<p>Callers need to be able to fall back to Close in any case.</p>
</tp:rationale>
</tp:docstring>
</method>
</interface>
</node>
<!-- vim:set sw=2 sts=2 et ft=xml: -->
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