diff options
Diffstat (limited to 'lib/runtime_tools/src')
| -rw-r--r-- | lib/runtime_tools/src/dbg.erl | 60 | ||||
| -rw-r--r-- | lib/runtime_tools/src/system_information.erl | 5 |
2 files changed, 31 insertions, 34 deletions
diff --git a/lib/runtime_tools/src/dbg.erl b/lib/runtime_tools/src/dbg.erl index 186563ab74..c2de57d40b 100644 --- a/lib/runtime_tools/src/dbg.erl +++ b/lib/runtime_tools/src/dbg.erl @@ -778,50 +778,50 @@ tracer_init(Handler, HandlerData) -> tracer_loop(Handler, HandlerData). tracer_loop(Handler, Hdata) -> - receive - Msg -> - %% Don't match in receive to avoid giving EXIT message higher - %% priority than the trace messages. - case Msg of - {'EXIT',_Pid,_Reason} -> - ok; - Trace -> - NewData = recv_all_traces(Trace, Handler, Hdata), - tracer_loop(Handler, NewData) - end + {State, Suspended, Traces} = recv_all_traces(), + NewHdata = handle_traces(Suspended, Traces, Handler, Hdata), + case State of + done -> + exit(normal); + loop -> + tracer_loop(Handler, NewHdata) end. - -recv_all_traces(Trace, Handler, Hdata) -> - Suspended = suspend(Trace, []), - recv_all_traces(Suspended, Handler, Hdata, [Trace]). -recv_all_traces(Suspended0, Handler, Hdata, Traces) -> +recv_all_traces() -> + recv_all_traces([], [], infinity). + +recv_all_traces(Suspended0, Traces, Timeout) -> receive Trace when is_tuple(Trace), element(1, Trace) == trace -> Suspended = suspend(Trace, Suspended0), - recv_all_traces(Suspended, Handler, Hdata, [Trace|Traces]); + recv_all_traces(Suspended, [Trace|Traces], 0); Trace when is_tuple(Trace), element(1, Trace) == trace_ts -> Suspended = suspend(Trace, Suspended0), - recv_all_traces(Suspended, Handler, Hdata, [Trace|Traces]); + recv_all_traces(Suspended, [Trace|Traces], 0); Trace when is_tuple(Trace), element(1, Trace) == seq_trace -> Suspended = suspend(Trace, Suspended0), - recv_all_traces(Suspended, Handler, Hdata, [Trace|Traces]); + recv_all_traces(Suspended, [Trace|Traces], 0); Trace when is_tuple(Trace), element(1, Trace) == drop -> Suspended = suspend(Trace, Suspended0), - recv_all_traces(Suspended, Handler, Hdata, [Trace|Traces]); + recv_all_traces(Suspended, [Trace|Traces], 0); + {'EXIT', _Pid, _Reason} -> + {done, Suspended0, Traces}; Other -> %%% Is this really a good idea? io:format(user,"** tracer received garbage: ~p~n", [Other]), - recv_all_traces(Suspended0, Handler, Hdata, Traces) - after 0 -> - case catch invoke_handler(Traces, Handler, Hdata) of - {'EXIT',Reason} -> - resume(Suspended0), - exit({trace_handler_crashed,Reason}); - NewHdata -> - resume(Suspended0), - NewHdata - end + recv_all_traces(Suspended0, Traces, Timeout) + after Timeout -> + {loop, Suspended0, Traces} + end. + +handle_traces(Suspended, Traces, Handler, Hdata) -> + case catch invoke_handler(Traces, Handler, Hdata) of + {'EXIT',Reason} -> + resume(Suspended), + exit({trace_handler_crashed,Reason}); + NewHdata -> + resume(Suspended), + NewHdata end. invoke_handler([Tr|Traces], Handler, Hdata0) -> diff --git a/lib/runtime_tools/src/system_information.erl b/lib/runtime_tools/src/system_information.erl index 04cc33e1ad..0796e96ffc 100644 --- a/lib/runtime_tools/src/system_information.erl +++ b/lib/runtime_tools/src/system_information.erl @@ -577,10 +577,7 @@ get_beam_name() -> false -> ""; true -> ".smp" end, - Beam = case os:getenv("EMU") of - false -> "beam"; - Value -> Value - end, + Beam = os:getenv("EMU", "beam"), Beam ++ Type ++ Flavor. %% Check runtime dependencies... |