static function lock($path)
{
$lockPath = $path . '.lock';
//funx::debug(__FUNCTION__." $lockPath");
// get the lock
$start = time();
while (@mkdir($lockPath) === false) {
// delete stale lock
clearstatcache();
if (file_exists($lockPath)) {
$life = self::life($lockPath);
if ($life > 5) {
funx::debug(__FUNCTION__ . " {$lockPath}: unlocked ({$life} seconds stale)");
self::unlock($path);
}
} else {
funx::debug(__FUNCTION__ . " {$lockPath}: cannot mkdir and path does not exist");
break;
}
//funx::debug(__FUNCTION__." $lockPath: waiting...");
usleep(100000);
// a tenth of one second
if (funx::wait($start, 15) === false) {
funx::debug(__FUNCTION__ . " {$lockPath}: waited to long and didnt unlock (lock life={$life})");
break;
}
}
return true;
}
