REAPI/daemon.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import time
import subprocess

timeSleep = 15

def run_command(command, bg=False):
    if bg:
        command += ' &'
    process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    output, error = process.communicate()
    return output.decode(), error.decode()

# 定时执行进程
def process():
    command = 'php /www/wwwroot/reapi/public/index.php gateway/api.task/cron 1>/dev/null 2>&1 &'
    check = 'ps -ef | grep gateway/api.task/cron | grep -v grep | wc -l'
    while True:
        value = int(run_command(check)[0].strip())
        if value == 0:
            run_command(command)
        time.sleep(timeSleep)

process()