diff options
Diffstat (limited to 'lib/pman/src/pman_relay_server.erl')
-rw-r--r-- | lib/pman/src/pman_relay_server.erl | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/pman/src/pman_relay_server.erl b/lib/pman/src/pman_relay_server.erl new file mode 100644 index 0000000000..2fcbb663bc --- /dev/null +++ b/lib/pman/src/pman_relay_server.erl @@ -0,0 +1,57 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1997-2009. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% +%%%---------------------------------------------------------------------- +%%% Purpose : Relay server code. +%%%---------------------------------------------------------------------- + +-module(pman_relay_server). + +%%-compile(export_all). +-export([init/1]). + + + +init(P) -> + process_flag(trap_exit, true), + + loop(P). + +loop(P) -> + receive + {ok_to_trace, PidSender, PidToTrace} -> + case catch erlang:trace(PidToTrace, false, [send]) of + 1 -> + PidSender ! {ok_to_trace, self()}, + loop(P); + _Otherwise -> + PidSender ! {not_ok_to_trace, self()} + end; + + {P, M,F,A} -> + case catch apply(M, F, A) of + 1 -> ok; + _Other -> P ! {print, "** Illegal trace request **\n", []} + end, + loop(P); + {'EXIT', P, _Reason} -> + exit(normal); + Other -> %% Here is the normal case for trace i/o + P ! Other, + loop(P) + end. |