timerfdcreate
timerfd_create is a Linux system call that creates a new timer file descriptor. This file descriptor can be used to wait for timer events. It is a way to receive timer expirations as readable events on a file descriptor, similar to how one might read from a pipe or socket.
The function takes two arguments: a clock ID and flags. The clock ID specifies the type of
Once a timerfd is created, it can be set to expire at a specific time or after
To wait for timer expirations, a process can use standard I/O multiplexing functions like poll, select, or