NAME¶
explain_raise_or_die - send a signal to the caller and report errors
SYNOPSIS¶
#include <libexplain/raise.h>
void explain_raise_or_die(int sig);
int explain_raise_on_error(int sig);
DESCRIPTION¶
The
explain_raise_or_die function is used to call the
raise(3)
system call. On failure an explanation will be printed to
stderr,
obtained from the
explain_raise(3) function, and then the process
terminates by calling exit(EXIT_FAILURE).
The
explain_raise_on_error function is used to call the
raise(3)
system call. On failure an explanation will be printed to
stderr,
obtained from the
explain_raise(3) function, but still returns to the
caller.
- sig
- The sig, exactly as to be passed to the raise(3)
system call.
RETURN VALUE¶
The
explain_raise_or_die function only returns on success, see
raise(3) for more information. On failure, prints an explanation and
exits, it does not return.
The
explain_raise_on_error function always returns the value return by
the wrapped
raise(3) system call.
EXAMPLE¶
The
explain_raise_or_die function is intended to be used in a fashion
similar to the following example:
explain_raise_or_die(sig);
SEE ALSO¶
- raise(3)
- send a signal to the caller
- explain_raise(3)
- explain raise(3) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2009 Peter Miller