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explain_getrusage_or_die(3)Library Functions Manualexplain_getrusage_or_die(3)

NAME
       explain_getrusage_or_die	- get resource usage and report	errors

SYNOPSIS
       #include	<libexplain/getrusage.h>
       void explain_getrusage_or_die(int who, struct rusage *usage);
       int explain_getrusage_on_error(int who, struct rusage *usage);

DESCRIPTION
       The  explain_getrusage_or_die function is used to call the getrusage(2)
       system call. On failure an explanation will be printed to  stderr,  ob-
       tained  from  the  explain_getrusage(3)	function, and then the process
       terminates by calling exit(EXIT_FAILURE).

       The  explain_getrusage_on_error	function   is	used   to   call   the
       getrusage(2)  system call. On failure an	explanation will be printed to
       stderr, obtained	from the explain_getrusage(3) function,	but still  re-
       turns to	the caller.

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

       usage   The usage, exactly as to	be passed to the  getrusage(2)	system
	       call.

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

       The explain_getrusage_on_error function always returns the value	return
       by the wrapped getrusage(2) system call.

EXAMPLE
       The explain_getrusage_or_die function is	intended to be used in a fash-
       ion similar to the following example:
	      explain_getrusage_or_die(who, usage);

SEE ALSO
       getrusage(2)
	       get resource usage

       explain_getrusage(3)
	       explain getrusage(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2013 Peter	Miller

						   explain_getrusage_or_die(3)

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

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