timer_create和timer_settime生成分段错误

Question

I am creating a timer. The structure is:

struct my_timer
{
  unsigned int ip_address;
  timer_t timer;
};

Now ip_address is initialized.

After that when I try to create timer via "timer_create", it's throwing segmentation fault .

If I don't initialize ip_address before and then create the timer then timer is getting created successfully.

Can anyone help here, as to why its happening?

Basically I want ip_address to find which timer has to be stopped later.

Answer 1

As documented , timer_create(2) does not take any sort of argument containing an IP address, nor a structure containing a timer_t plus a user-specified other part.

Do you have compiler warnings enabled? I imagine you are simply calling these functions with inappropriate arguments, but without seeing your code there's no way to know for sure.