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explain_setpriority_or_die(Library Functions Manuexplain_setpriority_or_die(3)

NAME
       explain_setpriority_or_die - set	program	scheduling priority and	report
       errors

SYNOPSIS
       #include	<libexplain/setpriority.h>
       void explain_setpriority_or_die(int which, int who, int prio);
       int explain_setpriority_on_error(int which, int who, int	prio);

DESCRIPTION
       The explain_setpriority_or_die function is used to call	the  setprior-
       ity(2)  system  call.  On  failure  an  explanation  will be printed to
       stderr, obtained	from the explain_setpriority(3)	function, and then the
       process terminates by calling exit(EXIT_FAILURE).

       The explain_setpriority_on_error	function is used to call the setprior-
       ity(2) system call. On  failure	an  explanation	 will  be  printed  to
       stderr,	obtained  from	the explain_setpriority(3) function, but still
       returns to the caller.

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

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

       prio    The prio, exactly as to be passed to the	setpriority(2)	system
	       call.

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

       The  explain_setpriority_on_error function always returns the value re-
       turn by the wrapped setpriority(2) system call.

EXAMPLE
       The explain_setpriority_or_die function is intended to  be  used	 in  a
       fashion similar to the following	example:
	      explain_setpriority_or_die(which,	who, prio);

SEE ALSO
       setpriority(2)
	       set program scheduling priority

       explain_setpriority(3)
	       explain setpriority(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2013 Peter	Miller

						 explain_setpriority_or_die(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT

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