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Retry using the waiting queue so as to preserve message ordering

This commit is contained in:
Luke Fitzgerald 2010-08-10 19:23:45 -07:00
parent 8005bdb421
commit 9da2368383
3 changed files with 31 additions and 10 deletions
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1
plugins/Irc/IrcPlugin.php
View File

@ -164,6 +164,7 @@ class IrcPlugin extends ImPlugin {
false, 'PRI', null, null, true),
new ColumnDef('data', 'blob', null, false),
new ColumnDef('prioritise', 'tinyint', 1, false),
new ColumnDef('attempts', 'integer', null, false),
new ColumnDef('created', 'datetime', null, false),
new ColumnDef('claimed', 'datetime')));

17
plugins/Irc/Irc_waiting_message.php
View File

@ -10,6 +10,7 @@ class Irc_waiting_message extends Memcached_DataObject {
public $id; // int primary_key not_null auto_increment
public $data; // blob not_null
public $prioritise; // tinyint(1) not_null
public $attempts; // int not_null
public $created; // datetime() not_null
public $claimed; // datetime()
@ -111,6 +112,22 @@ class Irc_waiting_message extends Memcached_DataObject {
return null;
}
/**
* Increment the attempts count
*
* @return void
* @throws Exception
*/
public function incAttempts() {
$orig = clone($this);
$this->attempts++;
$result = $this->update($orig);
if (!$result) {
throw Exception(sprintf(_m("Could not increment attempts count for %d"), $this->id));
}
}
/**
* Release a claimed item.
*/

23
plugins/Irc/ircmanager.php
View File

@ -101,19 +101,21 @@ class IrcManager extends ImManager {
$this->messageWaiting = false;
return;
}
$data = unserialize($wm->data);
$wm->incAttempts();
if (!$this->send_raw_message($data)) {
$this->plugin->enqueue_outgoing_raw(
array(
'type' => 'message',
'prioritise' => $data['prioritise'],
'data' => $data['data']
)
);
if ($this->send_raw_message($data)) {
$wm->delete();
} else {
if ($wm->attempts <= common_config('queue', 'max_retries')) {
// Try again next idle
$wm->releaseClaim();
} else {
// Exceeded the maximum number of retries
$wm->delete();
}
}
$wm->delete();
}
}
}
@ -276,6 +278,7 @@ class IrcManager extends ImManager {
$wm->data = serialize($data);
$wm->prioritise = $data['prioritise'];
$wm->attempts = 0;
$wm->created = common_sql_now();
$result = $wm->insert();