include/poller.php

   1 <?php
   2 if (!file_exists("boot.php") AND (sizeof($_SERVER["argv"]) != 0)) {
   3         $directory = dirname($_SERVER["argv"][0]);
   4
   5         if (substr($directory, 0, 1) != "/")
   6                 $directory = $_SERVER["PWD"]."/".$directory;
   7
   8         $directory = realpath($directory."/..");
   9
  10         chdir($directory);
  11 }
  12
  13 use \Friendica\Core\Config;
  14 use \Friendica\Core\PConfig;
  15
  16 require_once("boot.php");
  17
  18 function poller_run($argv, $argc){
  19         global $a, $db;
  20
  21         if(is_null($a)) {
  22                 $a = new App;
  23         }
  24
  25         if(is_null($db)) {
  26                 @include(".htconfig.php");
  27                 require_once("include/dba.php");
  28                 $db = new dba($db_host, $db_user, $db_pass, $db_data);
  29                 unset($db_host, $db_user, $db_pass, $db_data);
  30         };
  31
  32         // Quit when in maintenance
  33         if (Config::get('system', 'maintenance', true)) {
  34                 return;
  35         }
  36
  37         $a->start_process();
  38
  39         if (poller_max_connections_reached()) {
  40                 return;
  41         }
  42
  43         if ($a->maxload_reached()) {
  44                 return;
  45         }
  46
  47         if(($argc <= 1) OR ($argv[1] != "no_cron")) {
  48                 poller_run_cron();
  49         }
  50
  51         if ($a->max_processes_reached()) {
  52                 return;
  53         }
  54
  55         // Checking the number of workers
  56         if (poller_too_much_workers()) {
  57                 poller_kill_stale_workers();
  58                 return;
  59         }
  60
  61         $starttime = time();
  62
  63         while ($r = poller_worker_process()) {
  64
  65                 // Count active workers and compare them with a maximum value that depends on the load
  66                 if (poller_too_much_workers()) {
  67                         return;
  68                 }
  69
  70                 if (!poller_execute($r[0])) {
  71                         return;
  72                 }
  73
  74                 // Quit the poller once every hour
  75                 if (time() > ($starttime + 3600))
  76                         return;
  77         }
  78
  79 }
  80
  81 /**
  82  * @brief Execute a worker entry
  83  *
  84  * @param array $queue Workerqueue entry
  85  *
  86  * @return boolean "true" if further processing should be stopped
  87  */
  88 function poller_execute($queue) {
  89
  90         $a = get_app();
  91
  92         $mypid = getmypid();
  93
  94         // Quit when in maintenance
  95         if (Config::get('system', 'maintenance', true)) {
  96                 return false;
  97         }
  98
  99         // Constantly check the number of parallel database processes
 100         if ($a->max_processes_reached()) {
 101                 return false;
 102         }
 103
 104         // Constantly check the number of available database connections to let the frontend be accessible at any time
 105         if (poller_max_connections_reached()) {
 106                 return false;
 107         }
 108
 109         $upd = q("UPDATE `workerqueue` SET `executed` = '%s', `pid` = %d WHERE `id` = %d AND `pid` = 0",
 110                 dbesc(datetime_convert()),
 111                 intval($mypid),
 112                 intval($queue["id"]));
 113
 114         if (!$upd) {
 115                 logger("Couldn't update queue entry ".$queue["id"]." - skip this execution", LOGGER_DEBUG);
 116                 q("COMMIT");
 117                 return true;
 118         }
 119
 120         // Assure that there are no tasks executed twice
 121         $id = q("SELECT `pid`, `executed` FROM `workerqueue` WHERE `id` = %d", intval($queue["id"]));
 122         if (!$id) {
 123                 logger("Queue item ".$queue["id"]." vanished - skip this execution", LOGGER_DEBUG);
 124                 q("COMMIT");
 125                 return true;
 126         } elseif ((strtotime($id[0]["executed"]) <= 0) OR ($id[0]["pid"] == 0)) {
 127                 logger("Entry for queue item ".$queue["id"]." wasn't stored - skip this execution", LOGGER_DEBUG);
 128                 q("COMMIT");
 129                 return true;
 130         } elseif ($id[0]["pid"] != $mypid) {
 131                 logger("Queue item ".$queue["id"]." is to be executed by process ".$id[0]["pid"]." and not by me (".$mypid.") - skip this execution", LOGGER_DEBUG);
 132                 q("COMMIT");
 133                 return true;
 134         }
 135         q("COMMIT");
 136
 137         $argv = json_decode($queue["parameter"]);
 138
 139         // Check for existance and validity of the include file
 140         $include = $argv[0];
 141
 142         if (!validate_include($include)) {
 143                 logger("Include file ".$argv[0]." is not valid!");
 144                 q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($queue["id"]));
 145                 return true;
 146         }
 147
 148         require_once($include);
 149
 150         $funcname = str_replace(".php", "", basename($argv[0]))."_run";
 151
 152         if (function_exists($funcname)) {
 153
 154                 poller_exec_function($queue, $funcname, $argv);
 155
 156                 q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($queue["id"]));
 157         } else {
 158                 logger("Function ".$funcname." does not exist");
 159         }
 160
 161         return true;
 162 }
 163
 164 /**
 165  * @brief Execute a function from the queue
 166  *
 167  * @param array $queue Workerqueue entry
 168  * @param string $funcname name of the function
 169  */
 170 function poller_exec_function($queue, $funcname, $argv) {
 171
 172         $a = get_app();
 173
 174         $mypid = getmypid();
 175
 176         $argc = count($argv);
 177
 178         logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." ".$queue["parameter"]);
 179
 180         $stamp = (float)microtime(true);
 181
 182         // We use the callstack here to analyze the performance of executed worker entries.
 183         // For this reason the variables have to be initialized.
 184         if (Config::get("system", "profiler")) {
 185                 $a->performance["start"] = microtime(true);
 186                 $a->performance["database"] = 0;
 187                 $a->performance["database_write"] = 0;
 188                 $a->performance["network"] = 0;
 189                 $a->performance["file"] = 0;
 190                 $a->performance["rendering"] = 0;
 191                 $a->performance["parser"] = 0;
 192                 $a->performance["marktime"] = 0;
 193                 $a->performance["markstart"] = microtime(true);
 194                 $a->callstack = array();
 195         }
 196
 197         // For better logging create a new process id for every worker call
 198         // But preserve the old one for the worker
 199         $old_process_id = $a->process_id;
 200         $a->process_id = uniqid("wrk", true);
 201
 202         $funcname($argv, $argc);
 203
 204         $a->process_id = $old_process_id;
 205
 206         $duration = number_format(microtime(true) - $stamp, 3);
 207
 208         logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - done in ".$duration." seconds.");
 209
 210         // Write down the performance values into the log
 211         if (Config::get("system", "profiler")) {
 212                 $duration = microtime(true)-$a->performance["start"];
 213
 214                 if (Config::get("rendertime", "callstack")) {
 215                         if (isset($a->callstack["database"])) {
 216                                 $o = "\nDatabase Read:\n";
 217                                 foreach ($a->callstack["database"] AS $func => $time) {
 218                                         $time = round($time, 3);
 219                                         if ($time > 0)
 220                                                 $o .= $func.": ".$time."\n";
 221                                 }
 222                         }
 223                         if (isset($a->callstack["database_write"])) {
 224                                 $o .= "\nDatabase Write:\n";
 225                                 foreach ($a->callstack["database_write"] AS $func => $time) {
 226                                         $time = round($time, 3);
 227                                         if ($time > 0)
 228                                                 $o .= $func.": ".$time."\n";
 229                                 }
 230                         }
 231                         if (isset($a->callstack["network"])) {
 232                                 $o .= "\nNetwork:\n";
 233                                 foreach ($a->callstack["network"] AS $func => $time) {
 234                                         $time = round($time, 3);
 235                                         if ($time > 0)
 236                                                 $o .= $func.": ".$time."\n";
 237                                 }
 238                         }
 239                 } else {
 240                         $o = '';
 241                 }
 242
 243                 logger("ID ".$queue["id"].": ".$funcname.": ".sprintf("DB: %s/%s, Net: %s, I/O: %s, Other: %s, Total: %s".$o,
 244                         number_format($a->performance["database"] - $a->performance["database_write"], 2),
 245                         number_format($a->performance["database_write"], 2),
 246                         number_format($a->performance["network"], 2),
 247                         number_format($a->performance["file"], 2),
 248                         number_format($duration - ($a->performance["database"] + $a->performance["network"] + $a->performance["file"]), 2),
 249                         number_format($duration, 2)),
 250                         LOGGER_DEBUG);
 251         }
 252
 253         $cooldown = Config::get("system", "worker_cooldown", 0);
 254
 255         if ($cooldown > 0) {
 256                 logger("Process ".$mypid." - Prio ".$queue["priority"]." - ID ".$queue["id"].": ".$funcname." - in cooldown for ".$cooldown." seconds");
 257                 sleep($cooldown);
 258         }
 259 }
 260
 261 /**
 262  * @brief Checks if the number of database connections has reached a critical limit.
 263  *
 264  * @return bool Are more than 3/4 of the maximum connections used?
 265  */
 266 function poller_max_connections_reached() {
 267
 268         // Fetch the max value from the config. This is needed when the system cannot detect the correct value by itself.
 269         $max = Config::get("system", "max_connections");
 270
 271         // Fetch the percentage level where the poller will get active
 272         $maxlevel = Config::get("system", "max_connections_level", 75);
 273
 274         if ($max == 0) {
 275                 // the maximum number of possible user connections can be a system variable
 276                 $r = q("SHOW VARIABLES WHERE `variable_name` = 'max_user_connections'");
 277                 if ($r)
 278                         $max = $r[0]["Value"];
 279
 280                 // Or it can be granted. This overrides the system variable
 281                 $r = q("SHOW GRANTS");
 282                 if ($r)
 283                         foreach ($r AS $grants) {
 284                                 $grant = array_pop($grants);
 285                                 if (stristr($grant, "GRANT USAGE ON"))
 286                                         if (preg_match("/WITH MAX_USER_CONNECTIONS (\d*)/", $grant, $match))
 287                                                 $max = $match[1];
 288                         }
 289         }
 290
 291         // If $max is set we will use the processlist to determine the current number of connections
 292         // The processlist only shows entries of the current user
 293         if ($max != 0) {
 294                 $r = q("SHOW PROCESSLIST");
 295                 if (!dbm::is_result($r))
 296                         return false;
 297
 298                 $used = count($r);
 299
 300                 logger("Connection usage (user values): ".$used."/".$max, LOGGER_DEBUG);
 301
 302                 $level = ($used / $max) * 100;
 303
 304                 if ($level >= $maxlevel) {
 305                         logger("Maximum level (".$maxlevel."%) of user connections reached: ".$used."/".$max);
 306                         return true;
 307                 }
 308         }
 309
 310         // We will now check for the system values.
 311         // This limit could be reached although the user limits are fine.
 312         $r = q("SHOW VARIABLES WHERE `variable_name` = 'max_connections'");
 313         if (!$r)
 314                 return false;
 315
 316         $max = intval($r[0]["Value"]);
 317         if ($max == 0)
 318                 return false;
 319
 320         $r = q("SHOW STATUS WHERE `variable_name` = 'Threads_connected'");
 321         if (!$r)
 322                 return false;
 323
 324         $used = intval($r[0]["Value"]);
 325         if ($used == 0)
 326                 return false;
 327
 328         logger("Connection usage (system values): ".$used."/".$max, LOGGER_DEBUG);
 329
 330         $level = $used / $max * 100;
 331
 332         if ($level < $maxlevel)
 333                 return false;
 334
 335         logger("Maximum level (".$level."%) of system connections reached: ".$used."/".$max);
 336         return true;
 337 }
 338
 339 /**
 340  * @brief fix the queue entry if the worker process died
 341  *
 342  */
 343 function poller_kill_stale_workers() {
 344         $r = q("SELECT `pid`, `executed`, `priority`, `parameter` FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
 345
 346         if (!dbm::is_result($r)) {
 347                 // No processing here needed
 348                 return;
 349         }
 350
 351         foreach($r AS $pid)
 352                 if (!posix_kill($pid["pid"], 0))
 353                         q("UPDATE `workerqueue` SET `executed` = '0000-00-00 00:00:00', `pid` = 0 WHERE `pid` = %d",
 354                                 intval($pid["pid"]));
 355                 else {
 356                         // Kill long running processes
 357
 358                         // Check if the priority is in a valid range
 359                         if (!in_array($pid["priority"], array(PRIORITY_CRITICAL, PRIORITY_HIGH, PRIORITY_MEDIUM, PRIORITY_LOW, PRIORITY_NEGLIGIBLE)))
 360                                 $pid["priority"] = PRIORITY_MEDIUM;
 361
 362                         // Define the maximum durations
 363                         $max_duration_defaults = array(PRIORITY_CRITICAL => 360, PRIORITY_HIGH => 10, PRIORITY_MEDIUM => 60, PRIORITY_LOW => 180, PRIORITY_NEGLIGIBLE => 360);
 364                         $max_duration = $max_duration_defaults[$pid["priority"]];
 365
 366                         $argv = json_decode($pid["parameter"]);
 367                         $argv[0] = basename($argv[0]);
 368
 369                         // How long is the process already running?
 370                         $duration = (time() - strtotime($pid["executed"])) / 60;
 371                         if ($duration > $max_duration) {
 372                                 logger("Worker process ".$pid["pid"]." (".implode(" ", $argv).") took more than ".$max_duration." minutes. It will be killed now.");
 373                                 posix_kill($pid["pid"], SIGTERM);
 374
 375                                 // We killed the stale process.
 376                                 // To avoid a blocking situation we reschedule the process at the beginning of the queue.
 377                                 // Additionally we are lowering the priority.
 378                                 q("UPDATE `workerqueue` SET `executed` = '0000-00-00 00:00:00', `created` = '%s',
 379                                                         `priority` = %d, `pid` = 0 WHERE `pid` = %d",
 380                                         dbesc(datetime_convert()),
 381                                         intval(PRIORITY_NEGLIGIBLE),
 382                                         intval($pid["pid"]));
 383                         } else
 384                                 logger("Worker process ".$pid["pid"]." (".implode(" ", $argv).") now runs for ".round($duration)." of ".$max_duration." allowed minutes. That's okay.", LOGGER_DEBUG);
 385                 }
 386 }
 387
 388 /**
 389  * @brief Checks if the number of active workers exceeds the given limits
 390  *
 391  * @return bool Are there too much workers running?
 392  */
 393 function poller_too_much_workers() {
 394         $queues = Config::get("system", "worker_queues", 4);
 395
 396         $maxqueues = $queues;
 397
 398         $active = poller_active_workers();
 399
 400         // Decrease the number of workers at higher load
 401         $load = current_load();
 402         if($load) {
 403                 $maxsysload = intval(Config::get("system", "maxloadavg", 50));
 404
 405                 $maxworkers = $queues;
 406
 407                 // Some magical mathemathics to reduce the workers
 408                 $exponent = 3;
 409                 $slope = $maxworkers / pow($maxsysload, $exponent);
 410                 $queues = ceil($slope * pow(max(0, $maxsysload - $load), $exponent));
 411
 412                 $s = q("SELECT COUNT(*) AS `total` FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00'");
 413                 $entries = $s[0]["total"];
 414
 415                 if (Config::get("system", "worker_fastlane", false) AND ($queues > 0) AND ($entries > 0) AND ($active >= $queues)) {
 416                         $s = q("SELECT `priority` FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `priority` LIMIT 1");
 417                         $top_priority = $s[0]["priority"];
 418
 419                         $s = q("SELECT `id` FROM `workerqueue` WHERE `priority` <= %d AND `executed` != '0000-00-00 00:00:00' LIMIT 1",
 420                                 intval($top_priority));
 421                         $high_running = dbm::is_result($s);
 422
 423                         if (!$high_running AND ($top_priority > PRIORITY_UNDEFINED) AND ($top_priority < PRIORITY_NEGLIGIBLE)) {
 424                                 logger("There are jobs with priority ".$top_priority." waiting but none is executed. Open a fastlane.", LOGGER_DEBUG);
 425                                 $queues = $active + 1;
 426                         }
 427                 }
 428
 429                 // Create a list of queue entries grouped by their priority
 430                 $running = array(PRIORITY_CRITICAL => 0,
 431                                 PRIORITY_HIGH => 0,
 432                                 PRIORITY_MEDIUM => 0,
 433                                 PRIORITY_LOW => 0,
 434                                 PRIORITY_NEGLIGIBLE => 0);
 435
 436                 $r = q("SELECT COUNT(*) AS `running`, `priority` FROM `process` INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid` GROUP BY `priority`");
 437                 if (dbm::is_result($r))
 438                         foreach ($r AS $process)
 439                                 $running[$process["priority"]] = $process["running"];
 440
 441                 $processlist = "";
 442                 $r = q("SELECT COUNT(*) AS `entries`, `priority` FROM `workerqueue` GROUP BY `priority`");
 443                 if (dbm::is_result($r))
 444                         foreach ($r as $entry) {
 445                                 if ($processlist != "")
 446                                         $processlist .= ", ";
 447                                 $processlist .= $entry["priority"].":".$running[$entry["priority"]]."/".$entry["entries"];
 448                         }
 449
 450                 logger("Load: ".$load."/".$maxsysload." - processes: ".$active."/".$entries." (".$processlist.") - maximum: ".$queues."/".$maxqueues, LOGGER_DEBUG);
 451
 452                 // Are there fewer workers running as possible? Then fork a new one.
 453                 if (!Config::get("system", "worker_dont_fork") AND ($queues > ($active + 1)) AND ($entries > 1)) {
 454                         logger("Active workers: ".$active."/".$queues." Fork a new worker.", LOGGER_DEBUG);
 455                         $args = array("php", "include/poller.php", "no_cron");
 456                         $a = get_app();
 457                         $a->proc_run($args);
 458                 }
 459         }
 460
 461         return($active >= $queues);
 462 }
 463
 464 /**
 465  * @brief Returns the number of active poller processes
 466  *
 467  * @return integer Number of active poller processes
 468  */
 469 function poller_active_workers() {
 470         $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'poller.php'");
 471
 472         return($workers[0]["processes"]);
 473 }
 474
 475 /**
 476  * @brief Check if we should pass some slow processes
 477  *
 478  * When the active processes of the highest priority are using more than 2/3
 479  * of all processes, we let pass slower processes.
 480  *
 481  * @param string $highest_priority Returns the currently highest priority
 482  * @return bool We let pass a slower process than $highest_priority
 483  */
 484 function poller_passing_slow(&$highest_priority) {
 485
 486         $highest_priority = 0;
 487
 488         $r = q("SELECT `priority`
 489                 FROM `process`
 490                 INNER JOIN `workerqueue` ON `workerqueue`.`pid` = `process`.`pid`");
 491
 492         // No active processes at all? Fine
 493         if (!dbm::is_result($r))
 494                 return(false);
 495
 496         $priorities = array();
 497         foreach ($r AS $line)
 498                 $priorities[] = $line["priority"];
 499
 500         // Should not happen
 501         if (count($priorities) == 0)
 502                 return(false);
 503
 504         $highest_priority = min($priorities);
 505
 506         // The highest process is already the slowest one?
 507         // Then we quit
 508         if ($highest_priority == PRIORITY_NEGLIGIBLE)
 509                 return(false);
 510
 511         $high = 0;
 512         foreach ($priorities AS $priority)
 513                 if ($priority == $highest_priority)
 514                         ++$high;
 515
 516         logger("Highest priority: ".$highest_priority." Total processes: ".count($priorities)." Count high priority processes: ".$high, LOGGER_DEBUG);
 517         $passing_slow = (($high/count($priorities)) > (2/3));
 518
 519         if ($passing_slow)
 520                 logger("Passing slower processes than priority ".$highest_priority, LOGGER_DEBUG);
 521
 522         return($passing_slow);
 523 }
 524
 525 /**
 526  * @brief Returns the next worker process
 527  *
 528  * @return string SQL statement
 529  */
 530 function poller_worker_process() {
 531
 532         q("START TRANSACTION;");
 533
 534         // Check if we should pass some low priority process
 535         $highest_priority = 0;
 536
 537         if (poller_passing_slow($highest_priority)) {
 538                 // Are there waiting processes with a higher priority than the currently highest?
 539                 $r = q("SELECT * FROM `workerqueue`
 540                                 WHERE `executed` = '0000-00-00 00:00:00' AND `priority` < %d
 541                                 ORDER BY `priority`, `created` LIMIT 1", dbesc($highest_priority));
 542                 if (dbm::is_result($r))
 543                         return $r;
 544
 545                 // Give slower processes some processing time
 546                 $r = q("SELECT * FROM `workerqueue`
 547                                 WHERE `executed` = '0000-00-00 00:00:00' AND `priority` > %d
 548                                 ORDER BY `priority`, `created` LIMIT 1", dbesc($highest_priority));
 549         }
 550
 551         // If there is no result (or we shouldn't pass lower processes) we check without priority limit
 552         if (($highest_priority == 0) OR !dbm::is_result($r))
 553                 $r = q("SELECT * FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `priority`, `created` LIMIT 1");
 554
 555         return $r;
 556 }
 557
 558 /**
 559  * @brief Call the front end worker
 560  */
 561 function call_worker() {
 562         if (!Config::get("system", "frontend_worker") OR !Config::get("system", "worker")) {
 563                 return;
 564         }
 565
 566         $url = App::get_baseurl()."/worker";
 567         fetch_url($url, false, $redirects, 1);
 568 }
 569
 570 /**
 571  * @brief Call the front end worker if there aren't any active
 572  */
 573 function call_worker_if_idle() {
 574         if (!Config::get("system", "frontend_worker") OR !Config::get("system", "worker")) {
 575                 return;
 576         }
 577
 578         // Do we have "proc_open"? Then we can fork the poller
 579         if (function_exists("proc_open")) {
 580                 // When was the last time that we called the worker?
 581                 // Less than one minute? Then we quit
 582                 if ((time() - Config::get("system", "worker_started")) < 60) {
 583                         return;
 584                 }
 585
 586                 set_config("system", "worker_started", time());
 587
 588                 // Do we have enough running workers? Then we quit here.
 589                 if (poller_too_much_workers()) {
 590                         // Cleaning dead processes
 591                         poller_kill_stale_workers();
 592                         get_app()->remove_inactive_processes();
 593
 594                         return;
 595                 }
 596
 597                 poller_run_cron();
 598
 599                 logger('Call poller', LOGGER_DEBUG);
 600
 601                 $args = array("php", "include/poller.php", "no_cron");
 602                 $a = get_app();
 603                 $a->proc_run($args);
 604                 return;
 605         }
 606
 607         // We cannot execute background processes.
 608         // We now run the processes from the frontend.
 609         // This won't work with long running processes.
 610         poller_run_cron();
 611
 612         clear_worker_processes();
 613
 614         $workers = q("SELECT COUNT(*) AS `processes` FROM `process` WHERE `command` = 'worker.php'");
 615
 616         if ($workers[0]["processes"] == 0) {
 617                 call_worker();
 618         }
 619 }
 620
 621 /**
 622  * @brief Removes long running worker processes
 623  */
 624 function clear_worker_processes() {
 625         $timeout = Config::get("system", "frontend_worker_timeout", 10);
 626
 627         /// @todo We should clean up the corresponding workerqueue entries as well
 628         q("DELETE FROM `process` WHERE `created` < '%s' AND `command` = 'worker.php'",
 629                 dbesc(datetime_convert('UTC','UTC',"now - ".$timeout." minutes")));
 630 }
 631
 632 /**
 633  * @brief Runs the cron processes
 634  */
 635 function poller_run_cron() {
 636         logger('Add cron entries', LOGGER_DEBUG);
 637
 638         // Check for spooled items
 639         proc_run(PRIORITY_HIGH, "include/spool_post.php");
 640
 641         // Run the cron job that calls all other jobs
 642         proc_run(PRIORITY_MEDIUM, "include/cron.php");
 643
 644         // Run the cronhooks job separately from cron for being able to use a different timing
 645         proc_run(PRIORITY_MEDIUM, "include/cronhooks.php");
 646
 647         // Cleaning dead processes
 648         poller_kill_stale_workers();
 649 }
 650
 651 if (array_search(__file__,get_included_files())===0){
 652         poller_run($_SERVER["argv"],$_SERVER["argc"]);
 653
 654         get_app()->end_process();
 655
 656         killme();
 657 }
 658 ?>