bionic (3) explain_eventfd_or_die.3.gz

Provided by: libexplain-dev_1.4.D001-7_amd64 bug

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


       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                       explain_eventfd_or_die(3)