NAME

       explain_signalfd_or_die - create signalable file descriptor and report errors

SYNOPSIS

       #include <libexplain/signalfd.h>
       int explain_signalfd_or_die(int fildes, const sigset_t *mask, int flags);
       int explain_signalfd_on_error(int fildes, const sigset_t *mask, int flags);

DESCRIPTION

       The  explain_signalfd_or_die  function  is  used  to  call  the  signalfd(2)  system  call. On failure an
       explanation will be printed to stderr, obtained from  the  explain_signalfd(3)  function,  and  then  the
       process terminates by calling exit(EXIT_FAILURE).

       The  explain_signalfd_on_error  function  is  used  to  call  the  signalfd(2) system call. On failure an
       explanation will be printed to stderr, obtained from the explain_signalfd(3) function, but still  returns
       to the caller.

       fildes  The fildes, exactly as to be passed to the signalfd(2) system call.

       mask    The mask, exactly as to be passed to the signalfd(2) system call.

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

RETURN VALUE

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

       The explain_signalfd_on_error function always returns the value return by the wrapped signalfd(2)  system
       call.

EXAMPLE

       The  explain_signalfd_or_die  function  is  intended  to  be  used  in a fashion similar to the following
       example:
              int result = explain_signalfd_or_die(fildes, mask, flags);

SEE ALSO

       signalfd(2)
               create a file descriptor for accepting signals

       explain_signalfd(3)
               explain signalfd(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                      explain_signalfd_or_die(3)