/**
* Get status, current crawl, crawl order, and new site information from
* the queue_server.
*
* @return mixed array or bool. If we are doing
* a web crawl and we still have pages to crawl then true, if the
* scheduler page fails to download then false, otherwise, returns
* an array of info from the scheduler.
*/
function checkScheduler()
{
$prefix = $this->fetcher_num . "-";
$info = array();
$to_crawl_count = count($this->to_crawl);
$to_crawl_again_count = count($this->to_crawl_again);
if ($this->recrawl_check_scheduler) {
crawlLog("Archive Crawl checking ... Recrawl.");
}
if ((count($this->to_crawl) > 0 || count($this->to_crawl_again) > 0) && !$this->recrawl_check_scheduler) {
crawlLog(" Current to crawl count:" . $to_crawl_count);
crawlLog(" Current to crawl try again count:" . $to_crawl_again_count);
crawlLog("So not checking scheduler.");
return true;
}
$this->selectCurrentServerAndUpdateIfNeeded(false);
$this->recrawl_check_scheduler = false;
$queue_server = $this->queue_servers[$this->current_server];
crawlLog("Checking {$queue_server} for a new schedule.");
// hosts with error counts cleared with each schedule
$this->hosts_with_errors = array();
$start_time = microtime();
$time = time();
$session = md5($time . AUTH_KEY);
$request = $queue_server . "?c=fetch&a=schedule&time={$time}&session={$session}" . "&robot_instance=" . $prefix . ROBOT_INSTANCE . "&machine_uri=" . WEB_URI . "&crawl_time=" . $this->crawl_time . "&check_crawl_time=" . $this->check_crawl_time;
$info_string = FetchUrl::getPage($request, NULL, true);
crawlLog("Making schedule request: " . $request);
if ($info_string === false) {
crawlLog("The request failed!!!!");
return false;
}
$info_string = trim($info_string);
$tok = strtok($info_string, "\n");
$info = unserialize(base64_decode($tok));
$this->setCrawlParamsFromArray($info);
if (isset($info[self::SITES])) {
$tok = strtok("\n");
//skip meta info
$this->to_crawl = array();
while ($tok !== false) {
$string = base64_decode($tok);
$weight = unpackFloat(substr($string, 0, 4));
$delay = unpackInt(substr($string, 4, 4));
$url = substr($string, 8);
$this->to_crawl[] = array($url, $weight, $delay);
$tok = strtok("\n");
}
$dir = CRAWL_DIR . "/schedules";
file_put_contents("{$dir}/{$prefix}" . self::fetch_batch_name . "{$this->crawl_time}.txt", serialize($this->to_crawl));
$this->db->setWorldPermissionsRecursive("{$dir}/{$prefix}" . self::fetch_batch_name . "{$this->crawl_time}.txt");
unset($info[self::SITES]);
file_put_contents("{$dir}/{$prefix}" . self::fetch_crawl_info . "{$this->crawl_time}.txt", serialize($info));
}
crawlLog("Time to check Scheduler " . changeInMicrotime($start_time));
return $info;
}
function get_from_spr($data)
{
$pos = 0;
//кол-во байт в типе стали (ищем первое вхождение нулевого байта)
$steelTypeByteCount = strpos($data, "");
// класс стали
$this->steel_type = substr($data, 0, $steelTypeByteCount);
$pos += 80;
// Тип группы
$this->group_type = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// Тип элемента
$this->member_type = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// Нулевые байты
$pos += 3;
// Коэффициент расчетной длины отличается от нормативных
$this->isMuSameWithRegulation = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// 00 - расчетные длины, 01 - коэффициенты расчетной длины
$this->isMuUsed = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// Неупругая работа (0 - нет, 1 - да)
$this->isOnlyElastic = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// сопротивление стали
$this->steel_Ry = unpackDouble(substr($data, $pos, 8));
$pos += 8;
//gamma_N
$this->gamma_n = unpackDouble(substr($data, $pos, 8));
$pos += 8;
//gamma_C
$this->gamma_c = unpackDouble(substr($data, $pos, 8));
$pos += 8;
// Нулевые байты
$pos += 8;
// Коэффициенты расчетной длины
$this->mu_XZ = unpackDouble(substr($data, $pos, 8));
$pos += 8;
$this->mu_XY = unpackDouble(substr($data, $pos, 8));
$pos += 8;
// Гибкости
$this->flexCompressed = unpackDouble(substr($data, $pos, 8));
$pos += 8;
$this->flexTensed = unpackDouble(substr($data, $pos, 8));
$pos += 8;
// Расстояние между точками раскрепления
$this->bucklingDistance = unpackDouble(substr($data, $pos, 8));
$pos += 8;
// Нулевые байты
$pos += 16;
// Расчетные длины
$this->length_XZ = unpackDouble(substr($data, $pos, 8));
$pos += 8;
$this->length_XY = unpackDouble(substr($data, $pos, 8));
$pos += 8;
// Неизвестные значения
$this->noname1 = unpackDouble(substr($data, $pos, 8));
$pos += 8;
$this->noname2 = unpackDouble(substr($data, $pos, 8));
$pos += 8;
// Нулевые байты
$pos += 8;
// Проверка перемещений от всех нагрузок (0 - да, 1 - нет)
$this->deflectionFromAllLoadsToBeChecked = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// Проверка перемещений от временных нагрузок (0 - да, 1 - нет)
$this->deflectionFromTemporaryLoadsToBeChecked = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// Нулевые байты
$pos += 32;
// Предельные относительные перемещения
$this->limitRelativeDisplacementFromAllLoads = unpackFloat(substr($data, $pos, 4));
$pos += 4;
$this->limitRelativeDisplacementFromTemporaryLoads = unpackFloat(substr($data, $pos, 4));
$pos += 4;
// Нулевые байты
$pos += 22;
// Дополнительная группа (0 - нет, 1 - да)
$this->isGroupAdditional = unpackInt_1(substr($data, $pos, 1));
$pos += 1;
// Нулевые байты
$pos += 40;
// Предельные абсолютные перемещения
$this->limitAbsoluteDisplacementFromAllLoads = unpackFloat(substr($data, $pos, 4));
$pos += 4;
$this->limitAbsoluteDisplacementFromTemporaryLoads = unpackFloat(substr($data, $pos, 4));
$pos += 4;
}
