class SignalException

Parent:: Exception

Raised when a signal is received.

begin
  Process.kill('HUP',Process.pid)
  sleep # wait for receiver to handle signal sent by Process.kill
rescue SignalException => e
  puts "received Exception #{e}"
end

produces:

received Exception SIGHUP

Public Class Methods

new(sig_name) → signal_exception

new(sig_number [, name]) → signal_exception

Source

static VALUE
esignal_init(int argc, VALUE *argv, VALUE self)
{
    int argnum = 1;
    VALUE sig = Qnil;
    int signo;

    if (argc > 0) {
        sig = rb_check_to_integer(argv[0], "to_int");
        if (!NIL_P(sig)) argnum = 2;
        else sig = argv[0];
    }
    rb_check_arity(argc, 1, argnum);
    if (argnum == 2) {
        signo = NUM2INT(sig);
        if (signo < 0 || signo > NSIG) {
            rb_raise(rb_eArgError, "invalid signal number (%d)", signo);
        }
        if (argc > 1) {
            sig = argv[1];
        }
        else {
            sig = rb_signo2signm(signo);
        }
    }
    else {
        int prefix;
        signo = signm2signo(&sig, FALSE, FALSE, &prefix);
        if (prefix != signame_prefix_len) {
            sig = rb_str_append(rb_str_new_cstr("SIG"), sig);
        }
    }
    rb_call_super(1, &sig);
    rb_ivar_set(self, id_signo, INT2NUM(signo));

    return self;
}

Construct a new SignalException object. sig_name should be a known signal name.

Public Instance Methods

signo → num

Source

static VALUE
esignal_signo(VALUE self)
{
    return rb_ivar_get(self, id_signo);
}

Returns a signal number.

Ruby Core © 1993–2024 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.