debian man page for explain_eventfd_or_die

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) system 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,
       obtained 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 0.52
       Copyright (C) 2009 Peter Miller

															 explain_eventfd_or_die(3)