A kernel timer is a data structure that instructs the kernel to execute a user-defined function with a user-defined argument at a user-defined time.
A kernel timer is a data structure that instructs the kernel to execute a user-defined function with a user-defined argument at a user-defined time.
当你需要在不阻塞进程的情况下，指定未来某时间进行某项任务，可以使用内核计时器来达到目的。