class SignalException
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
In Files
- error.c
- signal.c
Parent
Public Class Methods
new(sig_name) → signal_exception
click to toggle source
new(sig_number [, name]) → signal_exception
Construct a new SignalException object.
sig_name should be a known signal name.
static VALUE
esignal_init(int argc, VALUE *argv, VALUE self)
{
int argnum = 1;
VALUE sig = Qnil;
int signo;
const char *signm;
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 len = sizeof(signame_prefix);
if (SYMBOL_P(sig)) sig = rb_sym2str(sig); else StringValue(sig);
signm = RSTRING_PTR(sig);
if (strncmp(signm, signame_prefix, len) == 0) {
signm += len;
len = 0;
}
signo = signm2signo(signm);
if (!signo) {
rb_raise(rb_eArgError, "unsupported name `%.*s%"PRIsVALUE"'",
len, signame_prefix, sig);
}
sig = rb_sprintf("SIG%s", signm);
}
rb_call_super(1, &sig);
rb_iv_set(self, "signo", INT2NUM(signo));
return self;
}
Public Instance Methods
signo → num
click to toggle source
Returns a signal number.
static VALUE
esignal_signo(VALUE self)
{
return rb_iv_get(self, "signo");
}