diff options
| -rw-r--r-- | lib/ssh/src/ssh_info.erl | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/lib/ssh/src/ssh_info.erl b/lib/ssh/src/ssh_info.erl index 073a9c7d28..9ed598b3ab 100644 --- a/lib/ssh/src/ssh_info.erl +++ b/lib/ssh/src/ssh_info.erl @@ -38,6 +38,7 @@ print() -> io:nl(), underline("Server part", $=), print_servers(), + io:nl(), %% case os:type() of %% {unix,_} -> %% io:nl(), @@ -49,7 +50,9 @@ print() -> %% catch io:format(os:cmd("netstat -tpn")); %% _ -> ok %% end, - ok + underline("Supervisors", $=), + walk_sups(ssh_sup), + io:nl() catch _:_ -> io:format("Ssh not found~n",[]) @@ -117,6 +120,52 @@ print_channel(Other) -> io:format(" [[Other 5: ~p]]~n",[Other]). %%%================================================================ +-define(inc(N), (N+4)). + +walk_sups(StartPid) -> + io:format("Start at ~p, ~s.~n",[StartPid,dead_or_alive(StartPid)]), + walk_sups(children(StartPid), _Indent=?inc(0)). + +walk_sups([H={_,Pid,SupOrWorker,_}|T], Indent) -> + indent(Indent), io:format('~200p ~p is ~s~n',[H,Pid,dead_or_alive(Pid)]), + case SupOrWorker of + supervisor -> walk_sups(children(Pid), ?inc(Indent)); + _ -> ok + end, + walk_sups(T, Indent); +walk_sups([], _) -> + ok. + +dead_or_alive(Name) when is_atom(Name) -> + case whereis(Name) of + undefined -> + "**UNDEFINED**"; + Pid -> + dead_or_alive(Pid) + end; +dead_or_alive(Pid) when is_pid(Pid) -> + case process_info(Pid) of + undefined -> "**DEAD**"; + _ -> "alive" + end. + +indent(I) -> io:format('~*c',[I,$ ]). + +children(Pid) -> + Parent = self(), + Helper = spawn(fun() -> + Parent ! {self(),supervisor:which_children(Pid)} + end), + receive + {Helper,L} when is_list(L) -> + L + after + 2000 -> + catch exit(Helper, kill), + [] + end. + +%%%================================================================ underline(Str) -> underline(Str, $-). |