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feedwriter.php
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feedwriter.php
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<?php
// This code is released under the GNU Affero General Public License.
// OpenEnergyMonitor project: http://openenergymonitor.org
// Feed writer for buffered mode
define('EMONCMS_EXEC', 1);
$fp = fopen("/var/lock/feedwriter.lock", "w");
if (! flock($fp, LOCK_EX | LOCK_NB)) { echo "Already running\n"; die; }
chdir(dirname(__FILE__)."/../");
require "Lib/EmonLogger.php";
require "process_settings.php";
$log = new EmonLogger(__FILE__);
$log->info("Starting feedwriter script");
if (!$settings['redis']['enabled']) { $log->error("Error: setting must be true: redis_enabled"); die; }
if (!$settings['feed']['redisbuffer']['enabled']) { $log->error("Error: setting must be true: settings['feed']['redisbuffer']['enabled']"); die; }
if (!$settings['feed']['redisbuffer']['sleep'] || (int)$settings['feed']['redisbuffer']['sleep'] < 1) { $log->error("Error: setting must be > 0 : settings['feed']['redisbuffer']['sleep']"); die; }
$mysqli = @new mysqli(
$settings["sql"]["server"],
$settings["sql"]["username"],
$settings["sql"]["password"],
$settings["sql"]["database"],
$settings["sql"]["port"]
);
if ($mysqli->connect_error) { $log->error("Can't connect to database:". $mysqli->connect_error); die('Check log\n'); }
if ($settings['redis']['enabled']) {
$redis = new Redis();
if (!$redis->connect($settings['redis']['host'], $settings['redis']['port'])) {
$log->error("Cannot connect to redis at ".$settings['redis']['host'].":".$settings['redis']['port']); die('Check log\n');
}
if (!empty($settings['redis']['prefix'])) $redis->setOption(Redis::OPT_PREFIX, $settings['redis']['prefix']);
if (!empty($settings['redis']['auth'])) {
if (!$redis->auth($settings['redis']['auth'])) {
$log->error("Cannot connect to redis at ".$settings['redis']['host'].", autentication failed"); die('Check log\n');
}
}
} else {
$redis = false;
}
require("Modules/user/user_model.php");
$user = new User($mysqli,$redis,null);
require("Modules/feed/feed_model.php");
$feed = new Feed($mysqli,$redis,$settings['feed']);
// Remove write locks just in case something halted without releasing
$feedids = $redis->sMembers("feed:bufferactive");
foreach ($feedids as $feedid) {
$feed->EngineClass(Engine::REDISBUFFER)->removeLock($feedid,"write");
}
$log->info("Buffered feed writer daemon started with sleep " . $settings['feed']['redisbuffer']['sleep'] . "s...");
while(true)
{
$feed->EngineClass(Engine::REDISBUFFER)->process_buffers();
sleep((int)$settings['feed']['redisbuffer']['sleep']);
}