/**
* Load in previous master positions for the client
*/
protected function initPositions()
{
if ($this->initialized) {
return;
}
$this->initialized = true;
if ($this->wait) {
// If there is an expectation to see master positions with a certain min
// timestamp, then block until they appear, or until a timeout is reached.
if ($this->waitForPosTime > 0.0) {
$data = null;
$loop = new WaitConditionLoop(function () use(&$data) {
$data = $this->store->get($this->key);
return self::minPosTime($data) >= $this->waitForPosTime ? WaitConditionLoop::CONDITION_REACHED : WaitConditionLoop::CONDITION_CONTINUE;
}, $this->waitForPosTimeout);
$result = $loop->invoke();
$waitedMs = $loop->getLastWaitTime() * 1000.0;
if ($result == $loop::CONDITION_REACHED) {
$msg = "expected and found pos time {$this->waitForPosTime} ({$waitedMs}ms)";
$this->logger->debug($msg);
} else {
$msg = "expected but missed pos time {$this->waitForPosTime} ({$waitedMs}ms)";
$this->logger->info($msg);
}
} else {
$data = $this->store->get($this->key);
}
$this->startupPositions = $data ? $data['positions'] : [];
$this->logger->info(__METHOD__ . ": key is {$this->key} (read)\n");
} else {
$this->startupPositions = [];
$this->logger->info(__METHOD__ . ": key is {$this->key} (unread)\n");
}
}
