/**
* grss_feeds_store_switch:
* @store: a #GrssFeedsStore.
* @run: %TRUE to run the @store, %FALSE to stop.
*
* This is to permit the @store to auto-update itself: it creates an internal
* #GrssFeedsPool and listens for his signals, so to implement the whole loop
* fetch-parse-save trasparently.
*/
void
grss_feeds_store_switch (GrssFeedsStore *store, gboolean run)
{
GList *channels;
if (store->priv->running == run)
return;
if (run == TRUE) {
if (store->priv->pool == NULL) {
store->priv->pool = grss_feeds_pool_new ();
g_signal_connect (store->priv->pool, "feed-ready", G_CALLBACK (feed_fetched), store);
}
channels = grss_feeds_store_get_channels (store);
grss_feeds_pool_listen (store->priv->pool, channels);
grss_feeds_pool_switch (store->priv->pool, TRUE);
}
else {
if (store->priv->pool != NULL)
grss_feeds_pool_switch (store->priv->pool, FALSE);
}
store->priv->running = run;
}
/**
* grss_feeds_pool_listen:
* @pool: a #GrssFeedsPool.
* @feeds: (element-type GrssFeedChannel): a list of #GrssFeedChannel.
*
* To set the list of feeds to be managed by the pool. The previous list, if
* any, is invalidated. After invokation to the function, grss_feeds_pool_switch()
* must be call to run the auto-fetching (always, also if previous state was
* "running").
* The list in @feeds can be freed after calling this; linked #GrssFeedChannel
* are g_object_ref'd here.
*/
void
grss_feeds_pool_listen (GrssFeedsPool *pool, GList *feeds)
{
gboolean original_status;
original_status = pool->priv->running;
grss_feeds_pool_switch (pool, FALSE);
remove_currently_listened (pool);
create_listened (pool, feeds);
grss_feeds_pool_switch (pool, original_status);
}
static void
grss_feeds_pool_finalize (GObject *obj)
{
GrssFeedsPool *pool;
pool = GRSS_FEEDS_POOL (obj);
grss_feeds_pool_switch (pool, FALSE);
remove_currently_listened (pool);
g_object_unref (pool->priv->parser);
g_object_unref (pool->priv->soupsession);
}
int main ()
{
register int i;
gchar *example_feeds [] = {
"http://rss.slashdot.org/Slashdot/slashdot",
"http://planet.gnome.org/atom.xml",
"http://news.gnome.org/atom.xml",
"http://lwn.net/headlines/rss",
NULL
};
GList *iter;
GList *list;
GrssFeedChannel *feed;
GrssFeedsPool *pool;
list = NULL;
for (i = 0; example_feeds [i] != NULL; i++) {
feed = grss_feed_channel_new ();
grss_feed_channel_set_source (feed, example_feeds [i]);
grss_feed_channel_set_update_interval (feed, i + 1);
list = g_list_prepend (list, feed);
}
list = g_list_reverse (list);
pool = grss_feeds_pool_new ();
grss_feeds_pool_listen (pool, list);
grss_feeds_pool_switch (pool, TRUE);
g_signal_connect (pool, "feed-ready", G_CALLBACK (feed_fetched), NULL);
g_main_run (g_main_loop_new (NULL, FALSE));
for (iter = list; iter; iter = g_list_next (iter))
g_object_unref (iter->data);
g_object_unref (pool);
exit (0);
}
