explain_sleep_or_die man page
explain_sleep_or_die — Sleep for a number of seconds and report errors
unsigned int explain_sleep_or_die(unsigned int seconds);
unsigned int explain_sleep_on_error(unsigned int seconds);
The explain_sleep_or_die function is used to call the sleep(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_sleep(3) function, and then the process terminates by calling
The explain_sleep_on_error function is used to call the sleep(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_sleep(3) function, but still returns to the caller.
The seconds, exactly as to be passed to the sleep(3) system call.
The explain_sleep_or_die function only returns on success, see sleep(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_sleep_on_error function always returns the value return by the wrapped sleep(3) system call.
The explain_sleep_or_die function is intended to be used in a fashion similar to the following example:
unsigned int result = explain_sleep_or_die(seconds);
Sleep for the specified number of seconds
explain sleep(3) errors
terminate the calling process
libexplain version 1.4
Copyright (C) 2013 Peter Miller