From 84adefa331c4159d432d22840663c38f155cd4c1 Mon Sep 17 00:00:00 2001
From: Erlang/OTP <otp@erlang.org>
Date: Fri, 20 Nov 2009 14:54:40 +0000
Subject: The R13B03 release.

---
 lib/tv/src/tv_ets_rpc.erl | 140 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 lib/tv/src/tv_ets_rpc.erl

(limited to 'lib/tv/src/tv_ets_rpc.erl')

diff --git a/lib/tv/src/tv_ets_rpc.erl b/lib/tv/src/tv_ets_rpc.erl
new file mode 100644
index 0000000000..ec2fde30ac
--- /dev/null
+++ b/lib/tv/src/tv_ets_rpc.erl
@@ -0,0 +1,140 @@
+%%
+%% %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_ets_rpc).
+
+
+
+-export([all/2,
+	 info/4,
+	 new/4,
+	 tab2list/3,
+	 insert/4,
+	 lookup/4,
+	 delete/4
+	]).
+
+
+
+
+all(_Node, true) ->                  
+    chk(catch ets:all());
+all(Node, false) ->
+    chk(catch rpc:block_call(Node, ets, all, [])).
+
+
+
+
+info(_Node, true, TabId, What) ->
+    chk(catch ets:info(TabId, What));
+info(Node, false, TabId, What) ->
+    chk(catch rpc:block_call(Node, ets, info, [TabId, What])).
+    
+
+
+
+new(_Node, true, TabName, Options) ->
+    case catch ets:new(TabName, Options) of
+	{TabName, Pid} when is_pid(Pid) ->
+	    {TabName,Pid};
+	{TabNo, Pid} when is_pid(Pid) ->
+	    {TabNo,Pid};
+	OtherResult ->
+	    chk(OtherResult)
+    end;
+new(Node, false, TabName, Options) ->
+    case catch rpc:block_call(Node, ets, new, [TabName, Options]) of
+	{TabName, Pid} when is_pid(Pid) ->
+	    {TabName,Pid};
+	{TabNo, Pid} when is_pid(Pid) ->
+	    {TabNo, Pid};
+	OtherResult ->
+	    chk(OtherResult)
+    end.
+    
+
+
+
+tab2list(_Node, true, TabId) ->
+    chk(catch ets:tab2list(TabId));
+tab2list(Node, false, TabId) ->
+    chk(catch rpc:call(Node, ets, tab2list, [TabId])).
+
+
+
+
+insert(_Node, true, TabId, Object) ->
+    chk(catch ets:insert(TabId, Object));
+insert(Node, false, TabId, Object) ->
+    chk(catch rpc:call(Node, ets, insert, [TabId, Object])).
+
+
+
+
+lookup(_Node, true, TabId, Key) ->
+    chk(catch ets:lookup(TabId, Key));
+lookup(Node, false, TabId, Key) ->
+    chk(catch rpc:call(Node, ets, lookup, [TabId, Key])).
+
+
+
+
+delete(_Node, true, TabId, Key) ->
+    chk(catch ets:delete(TabId, Key));
+delete(Node, false, TabId, Key) ->
+    chk(catch rpc:call(Node, ets, delete, [TabId, Key])).
+
+
+
+
+chk(Result) ->
+    case Result of
+	undefined ->
+	    throw(no_table);
+	_Anything when is_list(Result) ->
+	    Result;
+	_Anything when is_atom(Result) ->
+	    Result;
+	_Anything when is_integer(Result) ->
+	    Result;
+	_Anything when is_pid(Result) ->
+	    Result;
+
+	%% Messages received when node is down.
+	{badrpc, nodedown} ->
+	    throw(nodedown);
+	{'EXIT', nodedown} ->
+	    throw(nodedown);
+	{'EXIT', {{badarg, {gen, set_monitor_node, _Args}}, _Reason}} ->
+	    throw(nodedown);
+
+	%% Messages received when table doesn't exist.
+	{'EXIT', {badarg, {ets,local_info,_Args}}} ->  
+	       %% Due to inconsistencies in R2D and earlier versions:
+	       %% ets:info/1 returned 'undefined' when table didn't
+	       %% exist, while ets:info/2 returned the exit-signal 
+	       %% above. This was corrected in R3A - now both functions 
+	       %% return 'undefined'  :-)
+	    throw(no_table);
+	{badrpc, {'EXIT', {badarg,_Reason}}} ->
+	    throw(no_table);
+	{'EXIT', {badarg,_Reason}} ->
+	    throw(no_table);
+	Error when is_tuple(Error) ->   
+	    throw({unexpected_error,Error})
+    end.
+	
-- 
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