NAME

       explain_nice_or_die - change process priority and report errors

SYNOPSIS

       #include <libexplain/nice.h>
       int explain_nice_or_die(int inc);
       int explain_nice_on_error(int inc);

DESCRIPTION

       The  explain_nice_or_die  function  is used to call the nice(2) system call. On failure an
       explanation will be printed to stderr, obtained from  the  explain_nice(3)  function,  and
       then the process terminates by calling exit(EXIT_FAILURE).

       The  explain_nice_on_error function is used to call the nice(2) system call. On failure an
       explanation will be printed to stderr, obtained from  the  explain_nice(3)  function,  but
       still returns to the caller.

       inc     The inc, exactly as to be passed to the nice(2) system call.

RETURN VALUE

       The   explain_nice_or_die   function  only  returns  on  success,  see  nice(2)  for  more
       information. On failure, prints an explanation and exits, it does not return.

       The explain_nice_on_error function always returns the value return by the wrapped  nice(2)
       system call.

EXAMPLE

       The  explain_nice_or_die  function  is  intended  to  be  used in a fashion similar to the
       following example:
              int result = explain_nice_or_die(inc);

SEE ALSO

       nice(2) change process priority

       explain_nice(3)
               explain nice(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                           explain_nice_or_die(3)