<?php
$lane=$argv[1]??''; if(!in_array($lane,['B','C'],true))exit(78);
$mode=$argv[2]??'preflight';if(!in_array($mode,['preflight','prepare','launch','fetch','final'],true))exit(78);
$pid=$lane==='B'?10001:112175;
$root=$lane==='B'?'/tmp/zhct-http-store-mysql.dQTTBP':'/tmp/zhct-dm-poc-20260928.fcpiiN/store';
if(strpos((string)file_get_contents('/proc/'.$pid.'/cmdline'),$root.'/public')===false)throw new RuntimeException('Parent identity drift');
$env=[]; foreach(explode("\0",file_get_contents('/proc/'.$pid.'/environ')) as $s){$v=explode('=',$s,2); if(count($v)===2)$env[$v[0]]=$v[1];}
if(($env['POC_EXTERNAL_STUBS']??'')!=='1'||($env['POC_REAL_QUEUE']??'0')!=='0')throw new RuntimeException('Parent scope');
$env['PM_LANE']=$lane; $env['PM_ROOT']=$root;
$args=[$lane==='B'?'/usr/local/php7.3/bin/php':'/www/server/php/73/bin/php'];
if($lane==='C')array_push($args,'-c','/www/server/php/73/etc/php-cli.ini','-d','extension=/home/dmdba/dmdbms/drivers/php_pdo/libphp73_dm.so','-d','extension=/home/dmdba/dmdbms/drivers/php_pdo/php73_pdo_dm.so');
array_push($args,'-d','display_errors=0','-d','log_errors=0');
if($mode==='launch'){
 $port=$lane==='B'?18341:18342;if($socket=@fsockopen('127.0.0.1',$port,$n,$e,1)){fclose($socket);throw new RuntimeException('Port occupied');}
 if(!is_file(__DIR__.'/private-request.json'))throw new RuntimeException('Prepare gate');
 array_push($args,'-S','127.0.0.1:'.$port,'-t',__DIR__,__DIR__.'/index.php');
 $cmd='nohup '.implode(' ',array_map('escapeshellarg',$args)).' </dev/null >/dev/null 2>&1 & echo $!';
}else{array_push($args,__DIR__.'/'.$mode.'.php');$cmd=implode(' ',array_map('escapeshellarg',$args));}
$process=proc_open($cmd,[1=>STDOUT,2=>['file',__DIR__.'/private-error.log','a']],$pipes,null,$env);exit(proc_close($process));