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| explain_raise_or_die(3) | FreeBSD Library Functions Manual | explain_raise_or_die(3) |
NAME
explain_raise_or_die - send a signal to the caller and report errorsSYNOPSIS
#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 1.3Copyright (C) 2009 Peter Miller
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