library/Osmocom_CTRL_Functions.ttcn

module Osmocom_CTRL_Functions {
	import from Osmocom_CTRL_Types all;
	import from IPA_Emulation all;

	private function f_gen_rand_id() return CtrlId {
		return int2str(float2int(rnd()*999999999.0));
	}

	/* perform a given GET Operation */
	function f_ctrl_get(IPA_CTRL_PT pt, CtrlVariable variable) return CtrlValue {
		timer T := 2.0;
		var CtrlMessage rx;
		var CtrlId id := f_gen_rand_id();
		pt.send(ts_CtrlMsgGet(id, variable));
		T.start;
		alt {
		[] pt.receive(tr_CtrlMsgGetRepl(id, variable)) -> value rx { }
		[] pt.receive(tr_CtrlMsgTrap) { repeat; }
		[] pt.receive(tr_CtrlMsgError) -> value rx {
			setverdict(fail, "Error in CTRL GET ", variable, ": ", rx.err.reason);
			}
		[] T.timeout {
			setverdict(fail, "Timeout waiting for CTRL GET REPLY ", variable);
			}
		}
		return rx.resp.val;
	}

	/* perform a given SET Operation */
	function f_ctrl_set(IPA_CTRL_PT pt, CtrlVariable variable, CtrlValue val) {
		timer T := 2.0;
		var CtrlMessage rx;
		var CtrlId id := f_gen_rand_id();
		pt.send(ts_CtrlMsgSet(id, variable, val));
		T.start;
		alt {
		[] pt.receive(tr_CtrlMsgSetRepl(id, variable, val)) { }
		[] pt.receive(tr_CtrlMsgTrap) { repeat; }
		[] pt.receive(tr_CtrlMsgError) -> value rx {
			setverdict(fail, "Error in CTRL GET ", variable, ": ", rx.err.reason);
			}
		[] T.timeout {
			setverdict(fail, "Timeout waiting for CTRL SET REPLY ", variable);
			}
		}
	}

	/* Expect a matching TRAP */
	function f_ctrl_exp_trap(IPA_CTRL_PT pt, template CtrlVariable variable,
				 template CtrlValue val := ?) return CtrlValue {
		timer T := 2.0;
		var CtrlMessage rx;
		T.start;
		alt {
		[] pt.receive(tr_CtrlMsgTrap(variable, val)) -> value rx {}
		[] T.timeout {
			setverdict(fail, "Timeout waiting for TRAP ", variable);
			}
		}
		return rx.trap.val;
	}
}