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 0.19
Copyright (C) 2009 Peter Miller
explain_signalfd_or_die(3)