计时器池管理器
作用:
将多个计时器挂在到计时器管理器中, 用一个线程来统一管理, 减少资源消耗
别的多线程计时器在线程切换时会造成额外资源消耗
管理线程会根据在创建第一个计时器时自动启动, 关闭最后一个计时器后自动关闭
注意:
尽量不要调用Timer_Manager()中的close(), add_timer(), remove_timer()函数, 除非你真的完全了解这个模块
在计时器回调函数中调用close(), add_timer(), remove_timer()函数会造成死锁
测试代码:
if __name__ == '__main__':
def fun1(t: Timer):
print('回调', t.meta, t.callback_count, time.strftime(' %H:%M:%S', time.localtime()))
def fun_de(t: Timer):
print(t.meta, '关闭')
import time
t1 = Timer(fun1, 1, 5, close_callback=fun_de, meta='计时器1 ')
t1.start()
time.sleep(0.5)
t2 = Timer(fun1, 1, 2, meta=' 计时器2 ')
t2.start()
print('等待计时器1结束')
t1.join()
print('结束')
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