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author | Steve Vinoski <vinoski@ieee.org> | 2010-05-09 12:19:16 -0400 |
---|---|---|
committer | Raimo Niskanen <raimo@erlang.org> | 2010-05-27 16:53:24 +0200 |
commit | dab11bf07c66e1f119cc5d6198c8e90c5a02219e (patch) | |
tree | c4d69fedca3ab23224239ee2fc058867f08afe2b /lib/stdlib | |
parent | 02e434b8befb2696adc98f23bcc195e1ae0539c3 (diff) | |
download | otp-dab11bf07c66e1f119cc5d6198c8e90c5a02219e.tar.gz otp-dab11bf07c66e1f119cc5d6198c8e90c5a02219e.tar.bz2 otp-dab11bf07c66e1f119cc5d6198c8e90c5a02219e.zip |
handle {global, term()} names in format_status/2
The gen_fsm, gen_server, and wx_object format_status implementations
fail to handle global names of the form {global, term()} where term()
is something other than an atom, pid, or list. Change these
format_status implementations to treat names that are atoms, pids, or
lists as before, but for all other terms, set the header property of
the function return value to a tuple whose first element is a string
describing the return value and whose second element is the name term.
Add unit tests for gen_server and gen_fsm to verify sys:get_status
calls work successfully for globally registered instances.
Diffstat (limited to 'lib/stdlib')
-rw-r--r-- | lib/stdlib/src/gen_fsm.erl | 15 | ||||
-rw-r--r-- | lib/stdlib/src/gen_server.erl | 15 | ||||
-rw-r--r-- | lib/stdlib/test/gen_fsm_SUITE.erl | 28 | ||||
-rw-r--r-- | lib/stdlib/test/gen_server_SUITE.erl | 22 |
4 files changed, 65 insertions, 15 deletions
diff --git a/lib/stdlib/src/gen_fsm.erl b/lib/stdlib/src/gen_fsm.erl index 8d1b46d6ab..7d9960b912 100644 --- a/lib/stdlib/src/gen_fsm.erl +++ b/lib/stdlib/src/gen_fsm.erl @@ -614,12 +614,15 @@ get_msg(Msg) -> Msg. format_status(Opt, StatusData) -> [PDict, SysState, Parent, Debug, [Name, StateName, StateData, Mod, _Time]] = StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for state machine ", NameTag]), + StatusHdr = "Status for state machine", + Header = if + is_pid(Name) -> + lists:concat([StatusHdr, " ", pid_to_list(Name)]); + is_atom(Name); is_list(Name) -> + lists:concat([StatusHdr, " ", Name]); + true -> + {StatusHdr, Name} + end, Log = sys:get_debug(log, Debug, []), DefaultStatus = [{data, [{"StateData", StateData}]}], Specfic = diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl index dc8e7ecd16..ac81df9cab 100644 --- a/lib/stdlib/src/gen_server.erl +++ b/lib/stdlib/src/gen_server.erl @@ -840,12 +840,15 @@ name_to_pid(Name) -> %%----------------------------------------------------------------- format_status(Opt, StatusData) -> [PDict, SysState, Parent, Debug, [Name, State, Mod, _Time]] = StatusData, - NameTag = if is_pid(Name) -> - pid_to_list(Name); - is_atom(Name) -> - Name - end, - Header = lists:concat(["Status for generic server ", NameTag]), + StatusHdr = "Status for generic server", + Header = if + is_pid(Name) -> + lists:concat([StatusHdr, " ", pid_to_list(Name)]); + is_atom(Name); is_list(Name) -> + lists:concat([StatusHdr, " ", Name]); + true -> + {StatusHdr, Name} + end, Log = sys:get_debug(log, Debug, []), DefaultStatus = [{data, [{"State", State}]}], Specfic = diff --git a/lib/stdlib/test/gen_fsm_SUITE.erl b/lib/stdlib/test/gen_fsm_SUITE.erl index d61eeb403b..dd120f8c05 100644 --- a/lib/stdlib/test/gen_fsm_SUITE.erl +++ b/lib/stdlib/test/gen_fsm_SUITE.erl @@ -320,9 +320,32 @@ sys1(Config) when is_list(Config) -> call_format_status(Config) when is_list(Config) -> ?line {ok, Pid} = gen_fsm:start(gen_fsm_SUITE, [], []), ?line Status = sys:get_status(Pid), - ?line {status, Pid, _Mod, [_PDict, running, _Parent, _, Data]} = Status, + ?line {status, Pid, _Mod, [_PDict, running, _, _, Data]} = Status, ?line [format_status_called | _] = lists:reverse(Data), - ?line stop_it(Pid). + ?line stop_it(Pid), + + %% check that format_status can handle a name being an atom (pid is + %% already checked by the previous test) + ?line {ok, Pid2} = gen_fsm:start({local, gfsm}, gen_fsm_SUITE, [], []), + ?line Status2 = sys:get_status(gfsm), + ?line {status, Pid2, _Mod, [_PDict2, running, _, _, Data2]} = Status2, + ?line [format_status_called | _] = lists:reverse(Data2), + ?line stop_it(Pid2), + + %% check that format_status can handle a name being a term other than a + %% pid or atom + GlobalName1 = {global, "CallFormatStatus"}, + ?line {ok, Pid3} = gen_fsm:start(GlobalName1, gen_fsm_SUITE, [], []), + ?line Status3 = sys:get_status(GlobalName1), + ?line {status, Pid3, _Mod, [_PDict3, running, _, _, Data3]} = Status3, + ?line [format_status_called | _] = lists:reverse(Data3), + ?line stop_it(Pid3), + GlobalName2 = {global, {name, "term"}}, + ?line {ok, Pid4} = gen_fsm:start(GlobalName2, gen_fsm_SUITE, [], []), + ?line Status4 = sys:get_status(GlobalName2), + ?line {status, Pid4, _Mod, [_PDict4, running, _, _, Data4]} = Status4, + ?line [format_status_called | _] = lists:reverse(Data4), + ?line stop_it(Pid4). error_format_status(Config) when is_list(Config) -> ?line error_logger_forwarder:register(), @@ -345,7 +368,6 @@ error_format_status(Config) when is_list(Config) -> process_flag(trap_exit, OldFl), ok. - %% Hibernation hibernate(suite) -> []; hibernate(Config) when is_list(Config) -> diff --git a/lib/stdlib/test/gen_server_SUITE.erl b/lib/stdlib/test/gen_server_SUITE.erl index 0966734c89..99388ba2e3 100644 --- a/lib/stdlib/test/gen_server_SUITE.erl +++ b/lib/stdlib/test/gen_server_SUITE.erl @@ -905,6 +905,28 @@ call_format_status(Config) when is_list(Config) -> ?line Status2 = sys:get_status(call_format_status, 5000), ?line {status, Pid, _Mod, [_PDict, running, _Parent, _, Data2]} = Status2, ?line [format_status_called | _] = lists:reverse(Data2), + + %% check that format_status can handle a name being a pid (atom is + %% already checked by the previous test) + ?line {ok, Pid3} = gen_server:start_link(gen_server_SUITE, [], []), + ?line Status3 = sys:get_status(Pid3), + ?line {status, Pid3, _Mod, [_PDict3, running, _Parent, _, Data3]} = Status3, + ?line [format_status_called | _] = lists:reverse(Data3), + + %% check that format_status can handle a name being a term other than a + %% pid or atom + GlobalName1 = {global, "CallFormatStatus"}, + ?line {ok, Pid4} = gen_server:start_link(GlobalName1, + gen_server_SUITE, [], []), + ?line Status4 = sys:get_status(Pid4), + ?line {status, Pid4, _Mod, [_PDict4, running, _Parent, _, Data4]} = Status4, + ?line [format_status_called | _] = lists:reverse(Data4), + GlobalName2 = {global, {name, "term"}}, + ?line {ok, Pid5} = gen_server:start_link(GlobalName2, + gen_server_SUITE, [], []), + ?line Status5 = sys:get_status(GlobalName2), + ?line {status, Pid5, _Mod, [_PDict5, running, _Parent, _, Data5]} = Status5, + ?line [format_status_called | _] = lists:reverse(Data5), ok. %% Verify that error termination correctly calls our format_status/2 fun |