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explain_getpriority_or_die(Library Functions Manuexplain_getpriority_or_die(3)

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  getprior-
       ity(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 getprior-
       ity(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  re-
       turn 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 1.3
       Copyright (C) 2013 Peter	Miller

						 explain_getpriority_or_die(3)

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

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