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<?php
/**
* 启动并监控cron的队列脚本状态
*
* @copyright (c) 2010, weibo All rights reserved.
* @author 王勇 <wangyong1@staff.sina.com.cn>
* @version 2.0 - 2011-11-25
* @package Daemon
*/
include_once(dirname(dirname(dirname(__FILE__)))."/library/publicBase.php");
date_default_timezone_set("Asia/Shanghai");
abstract class cronBase {
protected $process; // 队列进程列表,必选项
protected $procnumlist; // 队列进程数限制,必选项
protected $procnum = 0; // 默认启动进程数
protected $maxtimelist; // 队列进程最大执行时间限制列表
protected $maxtime = 480; // 队列一次循环的默认最长时间, 未自定义则该项有效, 超过该值进程将被杀死
protected $bin_php = '/usr/local/bin/php'; // php执行文件路径
private $path_daemon; // ROOT根目录
private $proc_start; // 启动队列的进程信息
private $path_prochealth; // 进程健康路径
private $path_conf; // 配置文件路径
public function __construct() {
$this->path_conf = dirname(dirname(__FILE__))."/config/daemonconf.php";
include_once($this->path_conf);
$this->path_daemon = dirname(dirname(dirname(__FILE__))).'/queue/deal/';
$this->path_prochealth = dirname(dirname(dirname(__FILE__))).'/queue/cache/proc/deal_%s.txt';
$this->setPara();
$this->prepare();
$this->checkProc();
$this->startProc();
return true;
}
/* 子类必须实现,设置队列运行所须属性 */
public abstract function setPara();
private function prepare() {
$dir_prochealth = dirname($this->path_prochealth);
if(!is_dir($dir_prochealth)) system("mkdir -p $dir_prochealth");
if(empty($this->process)) exit("No dealscript.\n");
}
private function checkProc() {
$obj = new mBase();
$server_ip = $obj->getServerIp();
$rdobj = $obj->initRedis();
// 检测
foreach($this->process as $deal_flag => $proc) {
$active_proc_codes = array();
// 搜集存活的进程号、数
$path_proc = $this->path_daemon.$proc;
$chk_shell = "ps -ef|grep '{$path_proc}'|grep -v grep|grep -v '\/bin\/sh'|awk -F ' ' '{print $2\" \"$10\" \"$11}'";
$maxtime = $this->maxtimelist[$deal_flag]+0>0 ? $this->maxtimelist[$deal_flag] : $this->maxtime;
$fp = @popen($chk_shell, 'r');
while (!feof($fp)) {
$buffer = fgets($fp, 4096);
$procinfo = explode(' ', trim($buffer));
$procid = $procinfo[0]+0;
$proc_code = is_numeric($procinfo[2]) ? $procinfo[2] : $procinfo[1]+0;
if($procid==0) continue;
// 杀死僵死进程
$lasttime = $rdobj->get(sprintf(_DAEMON_HEALTH, $server_ip, $deal_flag, $proc_code));
if($lasttime === false || time()-$lasttime > $maxtime) {
system("/bin/kill -9 $procid");
error_log('['.date('Y-m-d H:i:s').']kill:'.$path_proc.'|'.$proc_code.'_'.md5($path_proc).'|'.time().'|'.$lasttime.'|'.$maxtime."\n", 3, dirname(dirname(__FILE__)).'/cache/proc/cron_track.log');
} else {
// 存活的进程
$active_proc_codes[] = $proc_code;
}
}
$procnum = $this->procnumlist[$deal_flag]+0>0 ? $this->procnumlist[$deal_flag] : $this->procnum;
for($i=0;$i<$procnum;$i++) {
if(in_array($i, $active_proc_codes)) continue;
$this->proc_start[$deal_flag]['proc'] = $path_proc;
$this->proc_start[$deal_flag]['startnum'][] = $i;
}
if($fp) @pclose($fp);
}
}
/* 检查进程运行情况检测, 杀僵死进程, 启动进程 */
private function startProc() {
// 启动队列
if(empty($this->proc_start)) return ;
foreach($this->proc_start as $deal_flag => $proc) {
if(empty($proc['startnum'])) continue;
foreach ($proc['startnum'] as $proc_code) {
$cmd = "{$this->bin_php} {$proc['proc']} {$deal_flag} {$proc_code} &";
//echo $cmd."\n";
//error_log('['.date('Y-m-d H:i:s').']startproc:'.$cmd."\n", 3, dirname(__FILE__).'/cron_track.log');
$fp = @popen($cmd, "r");
if($fp) @pclose($fp);
}
}
}
}