fix various bugs in sccp_user / sccp_erl occuring during first test
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@ -30,7 +30,7 @@
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% client functions, may internally talk to our sccp_user server
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-export([register_linkset/3, unregister_linkset/1]).
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-export([register_link/3, unregister_link/2, set_link_state/3]).
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-export([get_pid_for_link/3]).
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-export([get_pid_for_link/2]).
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-record(slink, {
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key, % {linkset_name, sls}
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@ -59,7 +59,7 @@
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% initialization code
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start_link() ->
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gen_server:start_link({local, ?MODULE}, ?MODULE, []).
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gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
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init(_Arg) ->
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LinksetTbl = ets:new(sccp_linksets, [ordered_set,
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@ -69,7 +69,7 @@ init(_Arg) ->
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% within client/caller process
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LinkTbl = ets:new(sccp_link_table, [ordered_set, named_table,
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{keypos, #slink.key}]),
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#su_state{linkset_tbl = LinksetTbl, link_tbl = LinkTbl}.
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{ok, #su_state{linkset_tbl = LinksetTbl, link_tbl = LinkTbl}}.
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% client side API
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@ -94,7 +94,7 @@ set_link_state(LinksetName, Sls, State) ->
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% the lookup functions can directly use the ets named_table from within
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% the client process, no need to go through a synchronous IPC
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get_pid_for_link(LinkTable, LinksetName, Sls) ->
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get_pid_for_link(LinksetName, Sls) ->
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case ets:lookup(sccp_link_table, {LinksetName, Sls}) of
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[#slink{user_pid = Pid}] ->
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% FIXME: check the link state
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@ -105,10 +105,11 @@ get_pid_for_link(LinkTable, LinksetName, Sls) ->
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% server side code
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handle_call({register_linkset, {LocalPc, RemotePc, Name}}, From, S) ->
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handle_call({register_linkset, {LocalPc, RemotePc, Name}},
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{FromPid, _FromRef}, S) ->
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#su_state{linkset_tbl = Tbl} = S,
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Ls = #slinkset{local_pc = LocalPc, remote_pc = RemotePc,
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name = Name, user_pid = From},
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name = Name, user_pid = FromPid},
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case ets:insert_new(Tbl, Ls) of
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false ->
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{reply, {error, ets_insert}, S};
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@ -119,18 +120,19 @@ handle_call({register_linkset, {LocalPc, RemotePc, Name}}, From, S) ->
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{reply, ok, S}
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end;
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handle_call({unregister_linkset, {Name}}, From, S) ->
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handle_call({unregister_linkset, {Name}}, {FromPid, _FromRef}, S) ->
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#su_state{linkset_tbl = Tbl} = S,
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ets:delete(Tbl, Name),
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{reply, ok, S};
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handle_call({register_link, {LsName, Sls, Name}}, From, S) ->
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handle_call({register_link, {LsName, Sls, Name}},
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{FromPid, _FromRef}, S) ->
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#su_state{linkset_tbl = LinksetTbl, link_tbl = LinkTbl} = S,
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% check if linkset actually exists
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case ets:loookup(LinksetTbl, LsName) of
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case ets:lookup(LinksetTbl, LsName) of
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[#slinkset{}] ->
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Link = #slink{name = Name, sls = Sls,
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user_pid = From, key = {LsName, Sls}},
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user_pid = FromPid, key = {LsName, Sls}},
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case ets:insert_new(LinkTbl, Link) of
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false ->
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{reply, {error, link_exists}, S};
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@ -144,13 +146,13 @@ handle_call({register_link, {LsName, Sls, Name}}, From, S) ->
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{reply, {error, no_such_linkset}, S}
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end;
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handle_call({unregister_link, {LsName, Sls}}, From, S) ->
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handle_call({unregister_link, {LsName, Sls}}, {FromPid, _FromRef}, S) ->
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#su_state{link_tbl = LinkTbl} = S,
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ets:delete(LinkTbl, {LsName, Sls}),
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{reply, ok, S};
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handle_call({set_link_state, {LsName, Sls, State}}, From, S) ->
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#su_state{linkset_tbl = LinksetTbl, link_tbl = LinkTbl} = S,
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handle_call({set_link_state, {LsName, Sls, State}}, {FromPid, _}, S) ->
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#su_state{link_tbl = LinkTbl} = S,
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case ets:lookup(LinkTbl, {LsName, Sls}) of
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[] ->
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{reply, {error, no_such_link}, S};
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@ -46,12 +46,12 @@
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% initialization code
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start_link() ->
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gen_server:start_link({local, ?MODULE}, ?MODULE, []).
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gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
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init(_Arg) ->
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UserTbl = ets:new(sccp_user_tbl, [ordered_set, named_table,
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{keypos, #scu_record.ssn_pc}]),
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#scu_state{user_table = UserTbl}.
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{ok, #scu_state{user_table = UserTbl}}.
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% client side code
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@ -83,9 +83,9 @@ local_ssn_avail(Ssn, Pc) ->
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% server side code
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% bind a {SSN, PC} tuple to the pid of the caller
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handle_call({bind_ssn, Ssn, Pc}, From, S) ->
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handle_call({bind_ssn, Ssn, Pc}, {FromPid, _FromRef}, S) ->
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#scu_state{user_table = Tbl} = S,
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NewRec = #scu_record{ssn_pc= {Ssn, Pc}, user_pid = From},
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NewRec = #scu_record{ssn_pc= {Ssn, Pc}, user_pid = FromPid},
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case ets:insert_new(Tbl, NewRec) of
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false ->
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{reply, {error, ets_insert}, S};
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@ -94,9 +94,9 @@ handle_call({bind_ssn, Ssn, Pc}, From, S) ->
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end;
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% unbind a {SSN, PC} tuple from the pid of the caller
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handle_call({unbind_ssn, Ssn, Pc}, From, S) ->
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handle_call({unbind_ssn, Ssn, Pc}, {FromPid, _FromRef}, S) ->
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#scu_state{user_table = Tbl} = S,
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DelRec = #scu_record{ssn_pc= {Ssn, Pc}, user_pid = From},
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DelRec = #scu_record{ssn_pc= {Ssn, Pc}, user_pid = FromPid},
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ets:delete_object(Tbl, DelRec),
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{reply, ok, S}.
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