document multi-pass mode on consume_feed

This commit is contained in:
Friendika 2011-10-04 04:38:58 -07:00
parent a9802575df
commit aeb83fa063

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@ -1078,7 +1078,18 @@ function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
* have a contact record.
* $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
* might not) try and subscribe to it.
* $datedir sorts in reverse order
* $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
* imported prior to its children being seen in the stream unless we are certain
* of how the feed is arranged/ordered.
* With $pass = 1, we only pull parent items out of the stream.
* With $pass = 2, we only pull children (comments/likes).
*
* So running this twice, first with pass 1 and then with pass 2 will do the right
* thing regardless of feed ordering. This won't be adequate in a fully-threaded
* model where comments can have sub-threads. That would require some massive sorting
* to get all the feed items into a mostly linear ordering, and might still require
* recursion.
*/
function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $pass = 0) {