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reintroduce channels

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Bring back the channel object. Making a node and port on the client side
was rather awkward because of the async nature of many methods. It feels
better to have a specific communication channel object to interface with
a server side port.
Use port activate/deactivate to start/stop streams
Remove links from the ports. We let other objects install a callback on
the port to receive and route buffers.
This commit is contained in:
Wim Taymans 2016-07-20 17:29:34 +02:00
parent eefe6aacb9
commit e167d30296
26 changed files with 2840 additions and 675 deletions
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137
pinos/client/introspect.c
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@ -462,6 +462,143 @@ pinos_port_state_as_string (PinosPortState state)
return val == NULL ? "invalid-state" : val->value_nick;
}
/**
* pinos_channel_state_as_string:
* @state: a #PinosChannelState
*
* Return the string representation of @state.
*
* Returns: the string representation of @state.
*/
const gchar *
pinos_channel_state_as_string (PinosChannelState state)
{
GEnumValue *val;
val = g_enum_get_value (G_ENUM_CLASS (g_type_class_ref (PINOS_TYPE_CHANNEL_STATE)),
state);
return val == NULL ? "invalid-state" : val->value_nick;
}
static void
channel_fill_info (PinosChannelInfo *info, GDBusProxy *proxy)
{
GHashTable *changed = g_object_get_data (G_OBJECT (proxy), "pinos-changed-properties");
info->id = proxy;
info->channel_path = g_dbus_proxy_get_object_path (proxy);
SET_UINT32 ("Direction", direction, 2, PINOS_DIRECTION_INVALID);
SET_STRING ("Client", client_path, 0);
info->change_mask = 0;
SET_STRING ("Port", port_path, 0);
SET_PROPERTIES ("Properties", properties, 1);
SET_UINT32 ("State", state, 2, PINOS_CHANNEL_STATE_ERROR);
SET_BYTES ("PossibleFormats", possible_formats, 3);
SET_BYTES ("Format", format, 4);
if (changed)
g_hash_table_remove_all (changed);
}
static void
channel_clear_info (PinosChannelInfo *info)
{
if (info->possible_formats)
g_bytes_unref (info->possible_formats);
if (info->format)
g_bytes_unref (info->format);
if (info->properties)
pinos_properties_free (info->properties);
}
/**
* pinos_context_list_channel_info:
* @context: a connected #PinosContext
* @flags: extra #PinosChannelInfoFlags
* @cb: a #PinosChannelInfoCallback
* @cancelable: a #GCancellable
* @callback: a #GAsyncReadyCallback to call when the operation is finished
* @user_data: user data passed to @cb
*
* Call @cb for each channel.
*/
void
pinos_context_list_channel_info (PinosContext *context,
PinosChannelInfoFlags flags,
PinosChannelInfoCallback cb,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
PinosContextPrivate *priv;
GList *walk;
GTask *task;
g_return_if_fail (PINOS_IS_CONTEXT (context));
g_return_if_fail (cb != NULL);
task = g_task_new (context, cancellable, callback, user_data);
priv = context->priv;
for (walk = priv->channels; walk; walk = g_list_next (walk)) {
GDBusProxy *proxy = walk->data;
PinosChannelInfo info;
channel_fill_info (&info, proxy);
cb (context, &info, user_data);
channel_clear_info (&info);
}
g_task_return_boolean (task, TRUE);
g_object_unref (task);
}
/**
* pinos_context_get_channel_info_by_id:
* @context: a connected #PinosContext
* @id: a channel id
* @flags: extra #PinosChannelInfoFlags
* @cb: a #PinosChannelInfoCallback
* @cancelable: a #GCancellable
* @callback: a #GAsyncReadyCallback to call when the operation is finished
* @user_data: user data passed to @cb
*
* Call @cb for the channel with @id.
*/
void
pinos_context_get_channel_info_by_id (PinosContext *context,
gpointer id,
PinosChannelInfoFlags flags,
PinosChannelInfoCallback cb,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
PinosChannelInfo info;
GDBusProxy *proxy;
GTask *task;
g_return_if_fail (PINOS_IS_CONTEXT (context));
g_return_if_fail (id != NULL);
g_return_if_fail (cb != NULL);
task = g_task_new (context, cancellable, callback, user_data);
proxy = G_DBUS_PROXY (id);
channel_fill_info (&info, proxy);
cb (context, &info, user_data);
channel_clear_info (&info);
g_task_return_boolean (task, TRUE);
g_object_unref (task);
}
static void
connection_fill_info (PinosConnectionInfo *info, GDBusProxy *proxy)
{