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)