osmo_map/src/map_as_server.erl

122 lines
3.4 KiB
Erlang

-module(map_as_server).
-behaviour(gen_server).
-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
-export([bind_ac/1, unbind_ac/1, dump/0]).
-record(ass_state, {sap_sup_pid, as_tbl}).
-record(ass_record, {ac, user_pid}).
% client side
bind_ac(Srv, AcName) when is_list(AcName) ->
bind_ac(Srv, list_to_tuple(AcName);
bind_ac(Srv, AcName) when is_tuple(AcName) ->
gen_server:call(Srv, {bind_ac, AcName}).
unbind_ac(Srv, AcName) when is_list(AcName) ->
unbind_ac(Srv, list_to_tuple(AcName);
unbind_ac(Srv, AcName) when is_tuple(AcName) ->
gen_server:call(Srv, {unbind_ac, AcName}).
dump() ->
fixme.
% gen_fsm callbacks
start_link(Ssn, {M, A, O}) when is_integer(Ssn) ->
ProcName = list_to_atom(?MODULE ++ "_" ++ integer_to_list(Ssn)),
gen_server:start_link({local, ProcName}, ?MODULE, [Ssn, {M, A, O}], []).
init([Ssn, {M, A, O}]) ->
{ok, SapSupPid} = tcap_sap_sup:start_link(M, A, O),
AssTbl = ets:new(list_to_atom(?MODULE ++ "_" ++ integer_to_list(Ssn)),
[ordered_set, named_table, {keypos, #ass_record.ac}]),
{ok, #ass_state{sap_sup_pid = SapSupPid, as_tbl = AssTbl}}.
handle_call({bind_ac, Ac}, {FromPid, _FromRef}, LoopDat) ->
NewRec = #actbl_record{ac = Ac, user_pid = FromPid},
case ets:insert_new(LoopDat#ass_state.as_tbl, NewRec) of
false ->
{reply, {error, ets_insert}, LoopDat};
_ ->
link(FromPid),
{reply, ok, LoopDat}
end;
handle_call({unbind_ac, Ac}, {FromPid, _FromRef}, LoopDat) ->
DelRec = #actbl_record{ac = Ac, user_pid = FromPid},
ets:delete_object(LoopDat#ass_state.as_tbl, DelRec),
{reply, ok, LoopDat}.
handle_cast(Info, LoopDat) ->
error_logger:error_report(["unknown handle_cast",
{module, ?MODULE}, {info, Info},
{state, LoopDat}]),
{noreply, LoopDat}.
handle_info({'EXIT', Pid, Reason}, LoopDat) ->
io:format("EXIT from process ~p (~p), cleaning up tables~n",
[Pid, Reason]),
ets:match_delete(LoopDat#ass_state.as_tbl, #actbl_record{user_pid = Pid}),
{noreply, LoopDat};
handle_info(Info, LoopDat) ->
error:logger:error_report(["unknown handle_info",
{module, ?MODULE}, {info, Info},
{state, LoopDat}]),
{noreply, LoopDat}.
terminate(Reason, _LoopDat) ->
io:format("terminating ~p with reason ~p~n", [self(), Reason]),
ok.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
% server side
as_for_ac(Ac, LoopDat) ->
case ets:lookup(LoopDat#ass_state.as_tbl, Ac) of
[#ass_record{user_pid = UserPid}] ->
{ok, UserPid};
_ ->
{error, no_such_ac}
end.
handle_tcap({'TC','BEGIN',indication,
I='TC-BEGIN'{appContextName = Ac, dialogueID = DlgId}}, LoopDat) ->
case as_for_ac(Ac, LoopDat) of
{ok, UserPid} ->
gen_fsm:send_event(UserPid, I);
{error, Reason} ->
error_logger:error_report(["TC-BEGIN for non-existing AC",
{application_context, Ac}]),
ok
end;
handle_tcap({'TC', What, indication, P}) when
What == 'CONTINUE'; What == 'END';
What == 'U-ABORT'; What == 'P-ABORT';
What == 'NOTICE' ->
% look up the Pid for the specific Dialogue Handler
case as_for_ac(Ac, LoopDat) of
FIXME FIXME
ok;
handle_tcap({'TC', 'INVOKE', indication, P}) when
% look up AS for AC, start new invoke in dialogue
handle_tcap({'TC', What, indication, P}) when
What == 'RESULT-L'; What == 'RESULT-NL';
What == 'U-ERROR'; What == 'L-CANCEL';
What == 'L-REJECT'; What == 'U-REJECT';
What == 'TIMER-RESET' ->
% look up the gen_fsm for the specific Invoke
ok.