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Prevent more than one instance of the poller running at a time.

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This commit is contained in:
Thomas Willingham 2014-10-20 19:31:47 +01:00
parent 11e8fe3085
commit 48b2eafcaa
1 changed files with 19 additions and 12 deletions
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29
include/poller.php
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@ -25,6 +25,15 @@ function poller_run($argv, $argc){
if(! $interval)
$interval = ((get_config('system','delivery_interval') === false) ? 3 : intval(get_config('system','delivery_interval')));
// Check for a logfile. If it exists, but is over an hour old, it's stale. Ignore it.
$lockfile = 'store/[data]/poller';
if ((file_exists($lockfile)) && (filemtime($lockfile) > (time() - 3600))) {
logger("poller: Already running");
return;
}
// Create a lockfile. Needs two vars, but $x doesn't need to contain anything.
file_put_contents($lockfile, $x);
logger('poller: start');
@ -254,7 +263,7 @@ function poller_run($argv, $argc){
);
$contacts = q("SELECT abook_id, abook_flags, abook_updated, abook_connected, abook_closeness, abook_xchan, abook_channel
$contacts = q("SELECT abook_id, abook_flags, abook_updated, abook_connected, abook_closeness, abook_channel
FROM abook LEFT JOIN account on abook_account = account_id where 1
$sql_extra
AND (( abook_flags & %d ) OR ( abook_flags = %d ))
@ -310,17 +319,12 @@ function poller_run($argv, $argc){
// He's dead, Jim
if(strcmp(datetime_convert('UTC','UTC', 'now'),datetime_convert('UTC','UTC', $c . " + 30 day")) > 0) {
$n = q("select xchan_network from xchan where xchan_hash = '%s' limit 1",
dbesc($contact['abook_xchan'])
$r = q("update abook set abook_flags = (abook_flags | %d) where abook_id = %d limit 1",
intval(ABOOK_FLAG_ARCHIVED),
intval($contact['abook_id'])
);
if($n && $n[0]['xchan_network'] == 'zot') {
$r = q("update abook set abook_flags = (abook_flags | %d) where abook_id = %d limit 1",
intval(ABOOK_FLAG_ARCHIVED),
intval($contact['abook_id'])
);
$update = false;
continue;
}
$update = false;
continue;
}
if($contact['abook_flags'] & ABOOK_FLAG_ARCHIVED) {
@ -376,6 +380,9 @@ function poller_run($argv, $argc){
}
}
//All done - clear the lockfile
@unlink($lockfile);
return;
}