Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Model/Process.php
*/
namespace Friendica\Model;
use Friendica\Database\DBA;
use Friendica\Util\DateTimeFormat;
/**
* @brief functions for interacting with a process
*/
class Process
{
/**
* Insert a new process row. If the pid parameter is omitted, we use the current pid
*
* @param string $command
* @param string $pid
* @return bool
* @throws \Exception
*/
public static function insert($command, $pid = null)
{
$return = true;
if (is_null($pid)) {
$pid = getmypid();
}
DBA::transaction();
if (!DBA::exists('process', ['pid' => $pid])) {
$return = DBA::insert('process', ['pid' => $pid, 'command' => $command, 'created' => DateTimeFormat::utcNow()]);
}
DBA::commit();
return $return;
}
/**
* Remove a process row by pid. If the pid parameter is omitted, we use the current pid
*
* @param string $pid
* @return bool
* @throws \Exception
*/
public static function deleteByPid($pid = null)
{
if ($pid === null) {
$pid = getmypid();
}
return DBA::delete('process', ['pid' => $pid]);
}
/**
* Clean the process table of inactive physical processes
*/
public static function deleteInactive()
{
DBA::transaction();
$processes = DBA::select('process', ['pid']);
while($process = DBA::fetch($processes)) {
if (!posix_kill($process['pid'], 0)) {
self::deleteByPid($process['pid']);
}
}
DBA::commit();
}
}