NAME

       explain_getpriority_or_die - get program scheduling priority and report errors

SYNOPSIS

       #include <libexplain/getpriority.h>
       int explain_getpriority_or_die(int which, int who);
       int explain_getpriority_on_error(int which, int who);

DESCRIPTION

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

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

       which   The which, exactly as to be passed to the getpriority(2) system call.

       who     The who, exactly as to be passed to the getpriority(2) system call.

RETURN VALUE

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

       The explain_getpriority_on_error function always returns the value return by  the  wrapped
       getpriority(2) system call.

EXAMPLE

       The explain_getpriority_or_die function is intended to be used in a fashion similar to the
       following example:
              int result = explain_getpriority_or_die(which, who);

SEE ALSO

       getpriority(2)
               get program scheduling priority

       explain_getpriority(3)
               explain getpriority(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2013 Peter Miller

                                                                    explain_getpriority_or_die(3)