simplepie: fix feed-not-found bug; update daemon1 to some code from daemon2

functions.php

@@ -543,7 +543,7 @@
 
 			$rss = new SimplePie();
 			$rss->set_useragent(SIMPLEPIE_USERAGENT . MAGPIE_USER_AGENT_EXT);
-			$rss->set_timeout(20);
+			$rss->set_timeout(10);
 			$rss->set_feed_url($fetch_url);
 			$rss->set_output_encoding('UTF-8');
 

simplepie/simplepie.inc

@@ -7616,6 +7616,11 @@ class SimplePie_File
 							return $this->SimplePie_File($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
 						}
 					}
+					// No feed fount at error correction.
+					// according to http://simplepie.org/support/viewtopic.php?id=1430
+					else {
+						$this->success = false;
+					}
 				}
 			}
 			else

update_daemon_loop.php

@@ -155,8 +155,23 @@
 	$user_prefs_cache = array();
 
 	_debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
-	
+
+	// Here is a little cache magic in order to minimize risk of double feed updates.
+	$feeds_to_update = array();
 	while ($line = db_fetch_assoc($result)) {
+		$feeds_to_update[$line['id']] = $line;
+	}
+
+	// We update the feed last update started date before anything else.
+	// There is no lag due to feed contents downloads
+	// It prevent an other process to update the same feed (for exemple, forced update by user).
+	$feed_ids = array_keys($feeds_to_update);
+	if($feed_ids) {
+		db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
+		WHERE id IN (%s)", implode(',', $feed_ids)));
+	}
+
+	while ($line = array_pop($feeds_to_update)) {
 
 		_debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);