diff options
Diffstat (limited to 'lib/observer')
| -rw-r--r-- | lib/observer/doc/src/ttb.xml | 30 | ||||
| -rw-r--r-- | lib/observer/src/ttb.erl | 36 |
2 files changed, 37 insertions, 29 deletions
diff --git a/lib/observer/doc/src/ttb.xml b/lib/observer/doc/src/ttb.xml index 76bbc777e8..94ecef24b4 100644 --- a/lib/observer/doc/src/ttb.xml +++ b/lib/observer/doc/src/ttb.xml @@ -229,27 +229,33 @@ ttb:p(all, call).</input></pre> </func> <func> - <name>p(Procs,Flags) -> Return</name> - <fsummary>Set the specified trace flags on the specified processes.</fsummary> + <name>p(Item,Flags) -> Return</name> + <fsummary>Set the specified trace flags on the specified processes or ports.</fsummary> <type> - <v>Return = {ok,[{Procs,MatchDesc}]}</v> - <v>Procs = Process | [Process] | all | new | existing</v> - <v>Process = pid() | atom() | {global,atom()}</v> + <v>Return = {ok,[{Item,MatchDesc}]}</v> + <v>Items = Item | [Item]</v> + <v>Item = pid() | port() | RegName | {global,GlobalRegName} | + all | processes | ports | + existing | existing_processes | existing_ports | + new | new_processes | new_ports</v> + <v>RegName = atom()</v> + <v>GlobalRegName = term()</v> <v>Flags = Flag | [Flag]</v> </type> <desc> - <p>Sets the specified trace flags on the specified - processes. Flag <c>timestamp</c> is always turned on. + <p>Sets the specified trace flags on the specified processes + or ports. Flag <c>timestamp</c> is always turned on. </p> <p>See the Reference Manual for module <seealso marker="runtime_tools:dbg"><c>dbg</c></seealso> - and the possible trace flags. Parameter + for the possible trace flags. Parameter <c>MatchDesc</c> is the same as returned from <c>dbg:p/2</c>.</p> <p>Processes can be specified as registered names, globally - registered names, or process identifiers. If a registered name - is specified, the flags are set on processes with this name on all - active nodes.</p> + registered names, or process identifiers. Ports can be + specified as registered names or port identifiers. If a + registered name is specified, the flags are set on + processes/ports with this name on all active nodes.</p> <p>Issuing this command starts the timer for this trace if option <c>timer</c> is specified with <c>tracer/2</c>. </p> @@ -267,7 +273,7 @@ ttb:p(all, call).</input></pre> function calls are traced on that process if a trace pattern is set for the called function.</p> <p>The <c>send</c> and <c>'receive'</c> flags enable tracing - of all messages sent and received by the process. Trace + of all messages sent and received by the process/port. Trace patterns set with <c>tpe</c> may limit traced messages based on the message content, the sender, and/or the receiver.</p> <p>Trace patterns specify how to trace a function or a message diff --git a/lib/observer/src/ttb.erl b/lib/observer/src/ttb.erl index 32c2fad775..e41f2c36fc 100644 --- a/lib/observer/src/ttb.erl +++ b/lib/observer/src/ttb.erl @@ -398,16 +398,16 @@ arg_list([A1|A],Acc) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% Set trace flags on processes -p(Procs0,Flags0) -> +p(ProcsPorts0,Flags0) -> ensure_no_overloaded_nodes(), - store(p,[Procs0,Flags0]), - no_store_p(Procs0,Flags0). -no_store_p(Procs0,Flags0) -> + store(p,[ProcsPorts0,Flags0]), + no_store_p(ProcsPorts0,Flags0). +no_store_p(ProcsPorts0,Flags0) -> case transform_flags(to_list(Flags0)) of {error,Reason} -> {error,Reason}; Flags -> - Procs = procs(Procs0), + ProcsPorts = procs_ports(ProcsPorts0), case lists:foldl(fun(P,{PMatched,Ps}) -> case dbg:p(P,Flags) of {ok,Matched} -> {[{P,Matched}|PMatched],[P|Ps]}; @@ -415,7 +415,7 @@ no_store_p(Procs0,Flags0) -> display_warning(P,Reason), {PMatched,Ps} end - end,{[],[]},Procs) of + end,{[],[]},ProcsPorts) of {[],[]} -> {error, no_match}; {SuccMatched,Succ} -> no_store_write_trace_info(flags,{Succ,Flags}), @@ -430,20 +430,22 @@ transform_flags(Flags) -> dbg:transform_flags([timestamp | Flags]). -procs(Procs) when is_list(Procs) -> - lists:foldl(fun(P,Acc) -> proc(P)++Acc end,[],Procs); -procs(Proc) -> - proc(Proc). +procs_ports(Procs) when is_list(Procs) -> + lists:foldl(fun(P,Acc) -> proc_port(P)++Acc end,[],Procs); +procs_ports(Proc) -> + proc_port(Proc). -proc(Procs) when Procs=:=all; Procs=:=ports; Procs=:=processes; - Procs=:=existing; Procs=:=existing_ports; Procs=:=existing_processes; - Procs=:=new; Procs=:=new_ports; Procs=:=new_processes -> - [Procs]; -proc(Name) when is_atom(Name) -> +proc_port(P) when P=:=all; P=:=ports; P=:=processes; + P=:=existing; P=:=existing_ports; P=:=existing_processes; + P=:=new; P=:=new_ports; P=:=new_processes -> + [P]; +proc_port(Name) when is_atom(Name) -> [Name]; % can be registered on this node or other node -proc(Pid) when is_pid(Pid) -> +proc_port(Pid) when is_pid(Pid) -> [Pid]; -proc({global,Name}) -> +proc_port(Port) when is_port(Port) -> + [Port]; +proc_port({global,Name}) -> case global:whereis_name(Name) of Pid when is_pid(Pid) -> [Pid]; |