The R13B03 release.OTP_R13B03

1 files changed, 104 insertions, 0 deletions

diff --git a/lib/tv/src/tv_mnesia_rpc.erl b/lib/tv/src/tv_mnesia_rpc.erl
new file mode 100644
index 0000000000..a2385714ec
--- /dev/null
+++ b/lib/tv/src/tv_mnesia_rpc.erl
@@ -0,0 +1,104 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1998-2009. 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%
+-module(tv_mnesia_rpc).
+
+
+
+-export([system_info/3,
+	 table_info/4,
+	 transaction/3
+	]).
+
+
+
+
+
+
+system_info(_Node, true, Key) ->
+    chk(catch mnesia:system_info(Key));
+system_info(Node, false, Key) ->
+    chk(catch rpc:block_call(Node, mnesia, system_info, [Key])).
+
+
+
+
+table_info(_Node, true, Tab, Item) ->
+    chk(catch mnesia:table_info(Tab, Item));
+table_info(Node, false, Tab, Item) ->
+    chk(catch rpc:block_call(Node, mnesia, table_info, [Tab, Item])).
+
+
+
+
+transaction(_Node, true, Fun) ->
+    chk(catch mnesia:transaction(Fun));
+transaction(Node, false, Fun) ->
+    chk(catch rpc:block_call(Node, mnesia, transaction, [Fun])).
+
+
+
+
+chk(Result) ->
+    case Result of
+	_Anything when is_list(Result) ->
+	    Result;
+	_Anything when is_atom(Result) ->
+	    Result;
+	_Anything when is_integer(Result) ->
+	    Result;
+	_Anything when is_pid(Result) ->
+	    Result;
+
+	{aborted, {bad_type, _Rec}} ->
+	    throw(bad_format);
+
+	{badrpc,nodedown} ->
+	    throw(nodedown);
+	{'EXIT', nodedown} ->
+	    throw(nodedown);
+
+	{'EXIT', {aborted, {no_exists, _Table, _Arg}}} ->
+	    throw(no_table);
+	
+	{'EXIT', {aborted, {node_not_running, _Node}}} ->
+	    throw(mnesia_not_started);
+	{'EXIT', {{badarg, {gen, set_monitor_mode, _Data}}, _Info}} ->
+	    throw(mnesia_not_started);
+	{'EXIT', {'EXIT', {aborted, {node_not_running,_Node}}}} ->
+	    throw(mnesia_not_started);
+	{badrpc, {'EXIT', {aborted, {node_not_running,_Node}}}} ->
+	    throw(mnesia_not_started);
+	{badrpc, {'EXIT', {aborted, {no_exists,_Table,_Args}}}} ->
+	    throw(mnesia_not_started);
+	{badrpc, _Reason} ->
+	    throw(mnesia_not_started);
+	{'EXIT', {undef, {mnesia,_Fcn,_Args}}} ->
+	    throw(mnesia_not_started);
+	
+	{'EXIT', Reason} ->
+	    throw({unexpected_error, Reason});
+	
+	Other when is_tuple(Other) ->
+	       %% For example wild_pattern requests return a tuple!
+	    Other;
+	
+	Other ->
+	    io:format("Unexpected return value: ~p~n", [Other])
+    end.
+	
+