]> git.mxchange.org Git - friendica.git/commitdiff
ok now I'm just making silly mistakes--take out premature function locking code
authorZach Prezkuta <fermion@gmx.com>
Sun, 24 Jun 2012 04:28:28 +0000 (22:28 -0600)
committerZach Prezkuta <fermion@gmx.com>
Sun, 24 Jun 2012 04:28:28 +0000 (22:28 -0600)
include/diaspora.php

index ab43b4608b072860b13d7bab9d9db8e17d2fda6b..a398007e197d206629caa3b17cd92fd5845eb27b 100755 (executable)
@@ -5,7 +5,6 @@ require_once('include/items.php');
 require_once('include/bb2diaspora.php');
 require_once('include/contact_selectors.php');
 require_once('include/queue_fn.php');
-require_once('include/lock.php');
 
 
 function diaspora_dispatch_public($msg) {
@@ -114,83 +113,27 @@ function diaspora_get_contact_by_handle($uid,$handle) {
 }
 
 function find_diaspora_person_by_handle($handle) {
-
-       $person = false;
        $update = false;
-       $got_lock = false;
-
-       do {
-               $r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1",
-                       dbesc(NETWORK_DIASPORA),
-                       dbesc($handle)
-               );
-               if(count($r)) {
-                       $person = $r[0];
-                       logger('find_diaspora_person_by handle: in cache ' . print_r($r,true), LOGGER_DEBUG);
-
-                       // update record occasionally so it doesn't get stale
-                       $d = strtotime($person['updated'] . ' +00:00');
-                       if($d < strtotime('now - 14 days'))
-                               $update = true;
-               }
-
-
-               // FETCHING PERSON INFORMATION FROM REMOTE SERVER
-               //
-               // If the person isn't in our 'fcontact' table, or if he/she is but
-               // his/her information hasn't been updated for more than 14 days, then
-               // we want to fetch the person's information from the remote server.
-               //
-               // Note that $person isn't changed by this block of code unless the
-               // person's information has been successfully fetched from the remote
-               // server. So if $person was 'false' to begin with (because he/she wasn't
-               // in the local cache), it'll stay false, and if $person held the local
-               // cache information to begin with, it'll keep that information. That way
-               // if there's a problem with the remote fetch, we can at least use our
-               // cached information--it's better than nothing.
-
-               if((! $person) || ($update))  {
-                       // Lock the function to prevent race conditions if multiple items
-                       // come in at the same time from a person who doesn't exist in
-                       // fcontact
-                       $got_lock = lock_function('find_diaspora_person_by_handle', false);
-
-                       if($got_lock) {
-                               logger('find_diaspora_person_by_handle: create or refresh', LOGGER_DEBUG);
-                               require_once('include/Scrape.php');
-                               $r = probe_url($handle, PROBE_DIASPORA);
-
-                               // Note that Friendica contacts can return a "Diaspora person"
-                               // if Diaspora connectivity is enabled on their server
-                               if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) {
-                                       add_fcontact($r,$update);
-                                       $person = ($r);
-                               }
-
-                               unlock_function('find_diaspora_person_by_handle');
-                       }
-                       else {
-                               logger('find_diaspora_person_by_handle: couldn\'t lock function', LOGGER_DEBUG);
-                               if(! $person)
-                                       block_on_function_lock('find_diaspora_person_by_handle');
-                       }
-               }
-       } while((! $person) && (! $got_lock));
-       // We need to try again if the person wasn't in 'fcontact' but the function was locked.
-       // The fact that the function was locked may mean that another process was creating the
-       // person's record. It could also mean another process was creating or updating an unrelated
-       // person.
-       //
-       // At any rate, we need to keep trying until we've either got the person or had a chance to
-       // try to fetch his/her remote information. But we don't want to block on locking the
-       // function, because if the other process is creating the record, then when we acquire the lock
-       // we'll dive right into creating another, duplicate record. We DO want to at least wait
-       // until the lock is released, so we don't flood the database with requests.
-       //
-       // If the person was in the 'fcontact' table, don't try again. It's not worth the time, since
-       // we do have some information for the person
-
-       return $person;
+       $r = q("select * from fcontact where network = '%s' and addr = '%s' limit 1",
+               dbesc(NETWORK_DIASPORA),
+               dbesc($handle)
+       );
+       if(count($r)) {
+               logger('find_diaspora_person_by handle: in cache ' . print_r($r,true), LOGGER_DEBUG);
+               // update record occasionally so it doesn't get stale
+               $d = strtotime($r[0]['updated'] . ' +00:00');
+               if($d > strtotime('now - 14 days'))
+                       return $r[0];
+               $update = true;
+       }
+       logger('find_diaspora_person_by_handle: refresh',LOGGER_DEBUG);
+       require_once('include/Scrape.php');
+       $r = probe_url($handle, PROBE_DIASPORA);
+       if((count($r)) && ($r['network'] === NETWORK_DIASPORA)) {
+               add_fcontact($r,$update);
+               return ($r);
+       }
+       return false;
 }