import os
import time

def server_run(port, command):
    # 设置服务缓存时间(防止更新服务产生冲突)
    time.sleep(12) if port == 8836 else time.sleep(8)
    server = os.popen("lsof -i:{}".format(port)).readlines()
    if not server:
        print(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime()), 
              "即将启动{}端口服务".format(port))
        # 启动服务
        os.popen(command)

while True:
    retrieval_app_server = os.popen("lsof -i:8835").readlines()
    if not retrieval_app_server:
        # server_run(8835, "nohup python retrieval_app.py >> logs/retrieval_app.log 2>&1 &")
        server_run(8835, "gunicorn -c guc_conf.py retrieval_app:app")

    hnsw_app_server = os.popen("lsof -i:8836").readlines()
    if not hnsw_app_server:
        server_run(8836, "nohup python hnsw_app.py > logs/temp_app.log 2>&1 &")