<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

class ManyPcntlInsertBigDataDepositCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'many_pcntl:insert_big_test_data';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '多进程插入测试数据';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        echo "Master process id = " . posix_getpid() . PHP_EOL;
        $i = 3;
        for ($i;$i>0;$i--){
            $pid = pcntl_fork();//创建一个新的进程
            switch ($pid) {
                case -1://如果为-1就代表失败
                    die('Create failed');
                    break;
                case 0://如果是0 就代表是子进程
                    // Child
                    echo "Child process id = " . posix_getpid() . PHP_EOL;//输出子进程的进程id
                    $this->call('test:insert_big_data');
                    sleep(2);
                    echo "I will exit\n";
                    break;
                default:
                    // Parent

                    if ($exit_id = pcntl_waitpid($pid, $status, WUNTRACED)) {//为了防止主进程挂了 子进程变成孤儿进程 所以在等待子进程执行完成以后
                        echo "Child({$exit_id}) exited\n";
                    }
                    echo "Parent process id = " . posix_getpid() . PHP_EOL;
                    break;
            }
        }


    }
}