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
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_ivar_set(self, id_signo, INT2NUM(signo)); return self; }