friendica/include/poller.php

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PHP
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<?php
if (!file_exists("boot.php") AND (sizeof($_SERVER["argv"]) != 0)) {
$directory = dirname($_SERVER["argv"][0]);
if (substr($directory, 0, 1) != "/")
$directory = $_SERVER["PWD"]."/".$directory;
$directory = realpath($directory."/..");
chdir($directory);
}
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require_once("boot.php");
function poller_run(&$argv, &$argc){
global $a, $db;
if(is_null($a)) {
$a = new App;
}
if(is_null($db)) {
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@include(".htconfig.php");
require_once("include/dba.php");
$db = new dba($db_host, $db_user, $db_pass, $db_data);
unset($db_host, $db_user, $db_pass, $db_data);
};
$maxsysload = intval(get_config('system','maxloadavg'));
if($maxsysload < 1)
$maxsysload = 50;
if(function_exists('sys_getloadavg')) {
$load = sys_getloadavg();
if(intval($load[0]) > $maxsysload) {
logger('system: load ' . $load[0] . ' too high. poller deferred to next scheduled run.');
return;
}
}
if(($argc <= 1) OR ($argv[1] != "no_cron")) {
// Run the cron job that calls all other jobs
proc_run("php","include/cron.php");
// Run the cronhooks job separately from cron for being able to use a different timing
proc_run("php","include/cronhooks.php");
// Cleaning dead processes
$r = q("SELECT DISTINCT(`pid`) FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
foreach($r AS $pid)
if (!posix_kill($pid["pid"], 0))
q("UPDATE `workerqueue` SET `executed` = '0000-00-00 00:00:00', `pid` = 0 WHERE `pid` = %d",
intval($pid["pid"]));
} else
// Sleep two seconds before checking for running processes to avoid having too many workers
sleep(4);
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// Checking number of workers
$workers = q("SELECT COUNT(*) AS `workers` FROM `workerqueue` WHERE `executed` != '0000-00-00 00:00:00'");
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$queues = intval(get_config("system", "worker_queues"));
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if ($queues == 0)
$queues = 4;
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if ($workers[0]["workers"] >= $queues)
return;
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$starttime = time();
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while ($r = q("SELECT * FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `created` LIMIT 1")) {
if(function_exists('sys_getloadavg')) {
$load = sys_getloadavg();
if(intval($load[0]) > $maxsysload) {
logger('system: load ' . $load[0] . ' too high. poller deferred to next scheduled run.');
return;
}
}
// Quit the poller once every hour
if (time() > ($starttime + 3600))
return;
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q("UPDATE `workerqueue` SET `executed` = '%s', `pid` = %d WHERE `id` = %d",
dbesc(datetime_convert()),
intval(getmypid()),
intval($r[0]["id"]));
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$argv = json_decode($r[0]["parameter"]);
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$argc = count($argv);
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// Check for existance and validity of the include file
$include = $argv[0];
if (!validate_include($include)) {
logger("Include file ".$argv[0]." is not valid!");
q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
continue;
}
require_once($include);
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$funcname=str_replace(".php", "", basename($argv[0]))."_run";
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if (function_exists($funcname)) {
logger("Process ".getmypid().": ".$funcname." ".$r[0]["parameter"]);
$funcname($argv, $argc);
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logger("Process ".getmypid().": ".$funcname." - done");
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q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
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} else
logger("Function ".$funcname." does not exist");
}
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}
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if (array_search(__file__,get_included_files())===0){
poller_run($_SERVER["argv"],$_SERVER["argc"]);
killme();
}
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?>