While we are doing this... #define APP_TIMEOUT (2000000L) /* 2 seconds */ ... usleep(APP_TIMEOUT); usleep limits its argument's range to values fr

While we are doing this... #define APP_TIMEOUT (2000000L) /* 2 seconds */ ... usleep(APP_TIMEOUT); usleep limits its argument's range to values from 0 to 1000000 and is considered obsolete. Please use nanosleep instead.