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($directory);
  11 }
  12
  13 require_once("boot.php");
  14
  15 function poller_run(&$argv, &$argc){
  16         global $a, $db;
  17
  18         if(is_null($a)) {
  19                 $a = new App;
  20         }
  21
  22         if(is_null($db)) {
  23                 @include(".htconfig.php");
  24                 require_once("include/dba.php");
  25                 $db = new dba($db_host, $db_user, $db_pass, $db_data);
  26                 unset($db_host, $db_user, $db_pass, $db_data);
  27         };
  28
  29         $maxsysload = intval(get_config('system','maxloadavg'));
  30         if($maxsysload < 1)
  31                 $maxsysload = 50;
  32         if(function_exists('sys_getloadavg')) {
  33                 $load = sys_getloadavg();
  34                 if(intval($load[0]) > $maxsysload) {
  35                         logger('system: load ' . $load[0] . ' too high. poller deferred to next scheduled run.');
  36                         return;
  37                 }
  38         }
  39
  40         if(($argc <= 1) OR ($argv[1] != "no_cron")) {
  41                 // Run the cron job that calls all other jobs
  42                 proc_run("php","include/cron.php");
  43
  44                 // Run the cronhooks job separately from cron for being able to use a different timing
  45                 proc_run("php","include/cronhooks.php");
  46
  47                 // Cleaning dead processes
  48                 $r = q("SELECT DISTINCT(`pid`) FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
  49                 foreach($r AS $pid)
  50                         if (!posix_kill($pid["pid"], 0))
  51                                 q("UPDATE `workerqueue` SET `executed` = '0000-00-00 00:00:00', `pid` = 0 WHERE `pid` = %d",
  52                                         intval($pid["pid"]));
  53
  54         } else
  55                 // Sleep two seconds before checking for running processes to avoid having too many workers
  56                 sleep(4);
  57
  58         // Checking number of workers
  59         $workers = q("SELECT COUNT(*) AS `workers` FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
  60
  61         $queues = intval(get_config("system", "worker_queues"));
  62
  63         if ($queues == 0)
  64                 $queues = 4;
  65
  66         if ($workers[0]["workers"] >= $queues)
  67                 return;
  68
  69         while ($r = q("SELECT * FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `created` LIMIT 1")) {
  70
  71                 if(function_exists('sys_getloadavg')) {
  72                         $load = sys_getloadavg();
  73                         if(intval($load[0]) > $maxsysload) {
  74                                 logger('system: load ' . $load[0] . ' too high. poller deferred to next scheduled run.');
  75                                 return;
  76                         }
  77                 }
  78
  79                 q("UPDATE `workerqueue` SET `executed` = '%s', `pid` = %d WHERE `id` = %d",
  80                         dbesc(datetime_convert()),
  81                         intval(getmypid()),
  82                         intval($r[0]["id"]));
  83
  84                 $argv = json_decode($r[0]["parameter"]);
  85
  86                 $argc = count($argv);
  87
  88                 // Check for existance and validity of the include file
  89                 $include = $argv[0];
  90
  91                 if (!validate_include($include)) {
  92                         logger("Include file ".$argv[0]." is not valid!");
  93                         q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
  94                         continue;
  95                 }
  96
  97                 require_once($include);
  98
  99                 $funcname=str_replace(".php", "", basename($argv[0]))."_run";
 100
 101                 if (function_exists($funcname)) {
 102                         logger("Process ".getmypid().": ".$funcname." ".$r[0]["parameter"]);
 103                         $funcname($argv, $argc);
 104
 105                         logger("Process ".getmypid().": ".$funcname." - done");
 106
 107                         q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
 108                 } else
 109                         logger("Function ".$funcname." does not exist");
 110         }
 111
 112 }
 113
 114 if (array_search(__file__,get_included_files())===0){
 115   poller_run($_SERVER["argv"],$_SERVER["argc"]);
 116   killme();
 117 }
 118 ?>