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explain_eventfd_or_die(3)  Library Functions Manual  explain_eventfd_or_die(3)

NAME
       explain_eventfd_or_die -	create event notify file descriptor and	report
       errors

SYNOPSIS
       #include	<libexplain/eventfd.h>
       int explain_eventfd_or_die(unsigned int initval,	int flags);
       int explain_eventfd_on_error(unsigned int initval, int flags);

DESCRIPTION
       The explain_eventfd_or_die function is used to call the eventfd(2) sys-
       tem call. On failure an explanation will	be printed to stderr, obtained
       from the	explain_eventfd(3) function, and then the  process  terminates
       by calling exit(EXIT_FAILURE).

       The  explain_eventfd_on_error  function	is used	to call	the eventfd(2)
       system call. On failure an explanation will be printed to  stderr,  ob-
       tained  from  the explain_eventfd(3) function, but still	returns	to the
       caller.

       initval The initval, exactly as to be passed to the  eventfd(2)	system
	       call.

       flags   The  flags,  exactly  as	 to be passed to the eventfd(2)	system
	       call.

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

       The explain_eventfd_on_error function always returns the	 value	return
       by the wrapped eventfd(2) system	call.

EXAMPLE
       The explain_eventfd_or_die function is intended to be used in a fashion
       similar to the following	example:
	      int result = explain_eventfd_or_die(initval, flags);

SEE ALSO
       eventfd(2)
	       create a	file descriptor	for event notification

       explain_eventfd(3)
	       explain eventfd(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2009 Peter	Miller

						     explain_eventfd_or_die(3)

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

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