%%--------------------------------------------------------------------
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2010. 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%
%%
%%
%%-----------------------------------------------------------------
%% File: cdr_decode.erl
%%
%% Description:
%% This file contains all decoding functions for the CDR
%% format.
%%
%%-----------------------------------------------------------------
-module(cdr_decode).
-include_lib("orber/src/orber_iiop.hrl").
-include_lib("orber/include/ifr_types.hrl").
-include_lib("orber/include/corba.hrl").
-include_lib("orber/src/ifr_objects.hrl").
%%-----------------------------------------------------------------
%% External exports
%%-----------------------------------------------------------------
-export([dec_giop_message_header/1, dec_reply_header/4,
dec_reply_body/6, dec_locate_reply_header/4,
dec_locate_reply_body/5, dec_message_header/3, dec_request_body/6,
dec_octet_sequence_bin/6, dec_message/2, peek_request_id/2]).
%%-----------------------------------------------------------------
%% Functions which only are exported for the testcases.
%%-----------------------------------------------------------------
-export([dec_type/5, dec_byte_order/1, dec_system_exception/4, dec_user_exception/4,
dec_byte_order_list/1]).
%%-----------------------------------------------------------------
%% Internal exports
%%-----------------------------------------------------------------
%%-----------------------------------------------------------------
%% Macros
%%-----------------------------------------------------------------
-define(DEBUG_LEVEL, 9).
-define(ODD(N), (N rem 2) == 1).
%%-----------------------------------------------------------------
%% Func: dec_message/3
%% Args:
%% TypeCodes - is the type_codes of the return value and out parameters
%% when one decodes a reply.
%% Bytes - is the the message as a byte sequence.
%% Returns:
%% A tupple which contains the decoded message,
%% {ok, Header, Parameters, TypeCodes}.
%%-----------------------------------------------------------------
dec_message(TypeCodes, Bytes) ->
Message = dec_giop_message_header(Bytes),
case Message#giop_message.message_type of
?GIOP_MSG_REQUEST ->
{Version, ReqHdr, Rest, Len, ByteOrder} =
dec_request_header(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order, Bytes),
dec_request_body(Version, ReqHdr, Rest, Len, ByteOrder, Bytes);
?GIOP_MSG_REPLY ->
dec_reply(Message#giop_message.giop_version,
TypeCodes, Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_CANCEL_REQUEST ->
dec_cancel_request(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_LOCATE_REQUEST ->
dec_locate_request(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_LOCATE_REPLY ->
dec_locate_reply(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_CLOSE_CONNECTION ->
'close_connection';
?GIOP_MSG_MESSAGE_ERROR ->
'message_error';
?GIOP_MSG_FRAGMENT ->
dec_fragment_header(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order, Bytes)
end.
%%-----------------------------------------------------------------
%% Func: dec_giop_message_header/1
%% Args:
%% Bytes - is the the message as a byte sequence.
%% Returns:
%% A giop_message record.
%%-----------------------------------------------------------------
%% Magic|Version|BO| Type | Size | Body
dec_giop_message_header(<<"GIOP",1:8,0:8,1:8,MessType:8,
MessSize:32/little-unsigned-integer,Message/binary>>) ->
#giop_message{magic = "GIOP", giop_version = {1,0},
byte_order = little, message_type = MessType,
message_size = MessSize, message = Message};
dec_giop_message_header(<<"GIOP",1:8,0:8,0:8,MessType:8,
MessSize:32/big-unsigned-integer,Message/binary>>) ->
#giop_message{magic = "GIOP", giop_version = {1,0},
byte_order = big, message_type = MessType,
message_size = MessSize, message = Message};
dec_giop_message_header(<<"GIOP",1:8,Minor:8,Flags:8,MessType:8,
MessSize:32/little-unsigned-integer,Message/binary>>) when
((Flags band 16#01) == 16#01) ->
#giop_message{magic = "GIOP", giop_version = {1,Minor},
byte_order = little, fragments = ((Flags band 16#02) == 16#02),
message_type = MessType, message_size = MessSize, message = Message};
dec_giop_message_header(<<"GIOP",1:8,Minor:8,Flags:8,MessType:8,
MessSize:32/big-unsigned-integer,Message/binary>>) ->
#giop_message{magic = "GIOP", giop_version = {1,Minor},
byte_order = big, fragments = ((Flags band 16#02) == 16#02),
message_type = MessType, message_size = MessSize, message = Message};
dec_giop_message_header(<<Hdr:?GIOP_HEADER_SIZE/binary, _Body/binary>>) ->
orber:dbg("[~p] cdr_decode:dec_giop_message_header(~p);~n"
"Orber cannot decode the GIOP-header.", [?LINE, Hdr], ?DEBUG_LEVEL),
exit(message_error);
dec_giop_message_header(Other) ->
orber:dbg("[~p] cdr_decode:dec_giop_message_header(~p);~n"
"Orber cannot decode the GIOP-header.", [?LINE, Other], ?DEBUG_LEVEL),
exit(message_error).
peek_request_id(big, <<ReqId:32/big-unsigned-integer,_/binary>>) ->
ReqId;
peek_request_id(little, <<ReqId:32/little-unsigned-integer,_/binary>>) ->
ReqId.
%%-----------------------------------------------------------------
%% Func: dec_message_header/2
%% Args:
%% Header - #giop_message{}
%% Bytes - is the the message body as a byte sequence.
%% Returns:
%%-----------------------------------------------------------------
dec_message_header(TypeCodes, Message, Bytes) ->
case Message#giop_message.message_type of
?GIOP_MSG_REQUEST ->
dec_request_header(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order, Bytes);
?GIOP_MSG_REPLY ->
dec_reply(Message#giop_message.giop_version,
TypeCodes, Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_CANCEL_REQUEST ->
dec_cancel_request(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_LOCATE_REQUEST ->
dec_locate_request(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_LOCATE_REPLY ->
dec_locate_reply(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order);
?GIOP_MSG_CLOSE_CONNECTION ->
'close_connection';
?GIOP_MSG_MESSAGE_ERROR ->
'message_error';
?GIOP_MSG_FRAGMENT ->
dec_fragment_header(Message#giop_message.giop_version,
Message#giop_message.message, ?GIOP_HEADER_SIZE,
Message#giop_message.byte_order, Bytes)
end.
%%-----------------------------------------------------------------
%% Func: dec_byte_order/1
%% Args:
%% The message as a byte sequence.
%% Returns:
%% A tuple {Endianess, Rest} where Endianess is big or little.
%% Rest is the remaining message byte sequence.
%%-----------------------------------------------------------------
dec_byte_order(<<0:8,T/binary>>) ->
{big, T};
dec_byte_order(<<1:8,T/binary>>) ->
{little, T}.
%%-----------------------------------------------------------------
%% Func: dec_byte_order_list/1
%% Args:
%% The message as a byte sequence.
%% Returns:
%% A tuple {Endianess, Rest} where Endianess is big or little.
%% Rest is the remaining message byte sequence.
%%-----------------------------------------------------------------
dec_byte_order_list([0|T]) ->
{big, T};
dec_byte_order_list([1|T]) ->
{little, T}.
%%-----------------------------------------------------------------
%% Func : dec_response_flags
%% Args :
%% Returns : boolean
%%-----------------------------------------------------------------
%% FIX ME!! Not correct flag handling.
dec_response_flags(_Version, <<0:8, Rest/binary>>, Len) ->
{false, Rest, Len+1};
dec_response_flags(_Version, <<1:8, Rest/binary>>, Len) ->
{true_oneway, Rest, Len+1};
dec_response_flags(_Version, <<3:8, Rest/binary>>, Len) ->
{true, Rest, Len+1};
dec_response_flags(_Version, <<X:8, Rest/binary>>, Len) ->
%% Not only the Response flag is set, test which.
if
%% Since the 6 most significant bits are unused we'll accept this for now.
((X band 16#03) == 16#03) ->
{true, Rest, Len+1};
((X band 16#01) == 16#01) ->
{true_oneway, Rest, Len+1};
true ->
{false, Rest, Len+1}
end.
%%-----------------------------------------------------------------
%% Func : dec_target_addr
%% Args : Octet
%% Returns : boolean
%%-----------------------------------------------------------------
dec_target_addr(Version, Message, Len, ByteOrder, RequestId, Type) ->
case dec_type(?TARGETADDRESS, Version, Message, Len, ByteOrder, [], 0) of
{#'GIOP_TargetAddress'{label = ?GIOP_KeyAddr, value = KeyAddr}, Rest3, Len3, C} ->
{dec_target_key(KeyAddr, RequestId, Version, Type), Rest3, Len3, C};
{#'GIOP_TargetAddress'{label = ?GIOP_ProfileAddr,
value = #'IOP_TaggedProfile'{tag=?TAG_INTERNET_IOP,
profile_data=PA}},
Rest3, Len3, C} ->
{dec_target_key(PA, RequestId, Version, Type), Rest3, Len3, C};
{#'GIOP_TargetAddress'{label = ?GIOP_ReferenceAddr,
value = #'GIOP_IORAddressingInfo'{
selected_profile_index = _PI,
ior = IOR}}, Rest3, Len3, C} ->
{dec_target_key(iop_ior:get_objkey(IOR), RequestId, Version, Type),
Rest3, Len3, C};
Other ->
orber:dbg("[~p] cdr_decode:dec_target_addr(~p);~n"
"Unsupported TargetAddress.", [?LINE, Other], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?ORBER_VMCID bor 12), completion_status=?COMPLETED_MAYBE})
end.
%%-----------------------------------------------------------------
%% Func : dec_target_key
%% Args : Octet
%% Returns : boolean
%%-----------------------------------------------------------------
dec_target_key(Key, RequestId, Version, Type) ->
%% The Type argument is used as an identifier of which operation it is.
%% We need it to be able to tell the difference if it's, for example,
%% a request or locate-request.
case corba:string_to_objkey_local(Key) of
{location_forward, Object} ->
throw({Type, Object, RequestId, Version, Key});
ObjRef ->
ObjRef
end.
%%-----------------------------------------------------------------
%% Func: dec_request_header/3
%% Args:
%% Message - The message
%% Len0 - Number of bytes already read.
%% ByteOrder - little or big
%% Returns:
%%-----------------------------------------------------------------
dec_request_header(Version, Message, Len0, ByteOrder, _Buffer) when Version == {1,2} ->
{Request_id, Rest1, Len1, _} = dec_type('tk_ulong', Version, Message, Len0,
ByteOrder, [], 0),
{ResponseFlags, Rest2, Len2} = dec_response_flags(Version, Rest1, Len1),
{_, Rest2b, Len2b, _} = dec_type({'tk_array', 'tk_octet', 3}, Version, Rest2, Len2, ByteOrder, [], 0),
{Object_key, Rest3, Len3, _} = dec_target_addr(Version, Rest2b, Len2b, ByteOrder, Request_id,
'location_forward'),
{Operation, Rest4, Len4, _} = dec_type({'tk_string', 0}, Version, Rest3, Len3, ByteOrder, [], 0),
{Context, Rest5, Len5} = dec_service_context(Version, Rest4, Len4, ByteOrder),
{Version, #request_header{service_context=Context,
request_id=Request_id,
response_expected=ResponseFlags,
object_key=Object_key,
operation=list_to_atom(Operation),
requesting_principal=""}, Rest5, Len5, ByteOrder};
dec_request_header(Version, Message, Len0, ByteOrder, _Buffer) ->
{Context, Rest1, Len1} = dec_service_context(Version, Message, Len0, ByteOrder),
{Request_id, Rest2, Len2, _} = dec_type('tk_ulong', Version, Rest1, Len1, ByteOrder, [], 0),
{Response_expected, Rest3, Len3, _} = dec_type('tk_boolean', Version, Rest2, Len2,
ByteOrder, [], 0),
{ObjKey, Rest4, Len4, _} = dec_type({'tk_sequence', 'tk_octet', 0}, Version, Rest3,
Len3, ByteOrder, [], 0),
Object_key = dec_target_key(ObjKey, Request_id, Version, 'location_forward'),
{Operation, Rest5, Len5, _} = dec_type({'tk_string', 0}, Version, Rest4, Len4, ByteOrder, [], 0),
{Principal, Rest, Len, _} = dec_type({'tk_string', 0}, Version, Rest5,Len5, ByteOrder, [], 0),
{Version, #request_header{service_context=Context,
request_id=Request_id,
response_expected=Response_expected,
object_key=Object_key,
operation=list_to_atom(Operation),
requesting_principal=Principal}, Rest, Len, ByteOrder}.
%%-----------------------------------------------------------------
%% Func: dec_service_context/4
%% Args: Version - e.g. 1.2
%% Message - The message
%% Len - Number of bytes already read.
%% ByteOrder - little or big
%% Returns:
%%-----------------------------------------------------------------
dec_service_context(Version, Message, Len, ByteOrder) ->
{Context, Rest, Len1} = dec_type(?IOP_SERVICECONTEXT, Version, Message,
Len, ByteOrder),
{dec_used_contexts(Version, Context, []), Rest, Len1}.
dec_used_contexts(_Version, [], Ctxs) ->
Ctxs;
dec_used_contexts({1,0}, [#'IOP_ServiceContext'{context_id=?IOP_CodeSets}|T], Ctxs) ->
%% Not supported by 1.0, drop it.
dec_used_contexts({1,0}, T, Ctxs);
dec_used_contexts(Version, [#'IOP_ServiceContext'{context_id=?IOP_CodeSets,
context_data = Bytes}|T], Ctxs) ->
{ByteOrder, Rest} = dec_byte_order(list_to_binary(Bytes)),
{CodeCtx, _, _} = dec_type(?CONV_FRAME_CODESETCONTEXT, Version,
Rest, 1, ByteOrder),
dec_used_contexts(Version, T,
[#'IOP_ServiceContext'{context_id=?IOP_CodeSets,
context_data = CodeCtx}|Ctxs]);
dec_used_contexts(Version, [#'IOP_ServiceContext'{context_id=?IOP_BI_DIR_IIOP,
context_data = Bytes}|T], Ctxs) ->
{ByteOrder, Rest} = dec_byte_order(list_to_binary(Bytes)),
{BiDirCtx, _, _} = dec_type(?IIOP_BIDIRIIOPSERVICECONTEXT, Version,
Rest, 1, ByteOrder),
dec_used_contexts(Version, T,
[#'IOP_ServiceContext'{context_id=?IOP_BI_DIR_IIOP,
context_data = BiDirCtx}|Ctxs]);
dec_used_contexts(Version, [#'IOP_ServiceContext'{context_id=?IOP_FT_REQUEST,
context_data = Bytes}|T], Ctxs) ->
{ByteOrder, Rest} = dec_byte_order(list_to_binary(Bytes)),
{Ctx, _, _} = dec_type(?FT_FTRequestServiceContext, Version,
Rest, 1, ByteOrder),
dec_used_contexts(Version, T,
[#'IOP_ServiceContext'{context_id=?IOP_FT_REQUEST,
context_data = Ctx}|Ctxs]);
dec_used_contexts(Version, [#'IOP_ServiceContext'{context_id=?IOP_FT_GROUP_VERSION,
context_data = Bytes}|T], Ctxs) ->
{ByteOrder, Rest} = dec_byte_order(list_to_binary(Bytes)),
{Ctx, _, _} = dec_type(?FT_FTGroupVersionServiceContext, Version,
Rest, 1, ByteOrder),
dec_used_contexts(Version, T,
[#'IOP_ServiceContext'{context_id=?IOP_FT_GROUP_VERSION,
context_data = Ctx}|Ctxs]);
dec_used_contexts(Version, [#'IOP_ServiceContext'{context_id=?IOP_SecurityAttributeService,
context_data = Bytes}|T], Ctxs) ->
{ByteOrder, Rest} = dec_byte_order(list_to_binary(Bytes)),
{Ctx, _, _} = dec_type(?CSI_SASContextBody, Version,
Rest, 1, ByteOrder),
dec_used_contexts(Version, T,
[#'IOP_ServiceContext'{context_id=?IOP_SecurityAttributeService,
context_data = Ctx}|Ctxs]);
dec_used_contexts(Version, [#'IOP_ServiceContext'{context_id=?ORBER_GENERIC_CTX_ID,
context_data = Bytes}|T], Ctxs) ->
{ByteOrder, Rest} = dec_byte_order(list_to_binary(Bytes)),
{Ctx, _, _} = dec_type(?ORBER_GENERIC_CTX, Version,
Rest, 1, ByteOrder),
dec_used_contexts(Version, T,
[#'IOP_ServiceContext'{context_id=?ORBER_GENERIC_CTX_ID,
context_data = binary_to_term(list_to_binary(Ctx))}|Ctxs]);
dec_used_contexts(Version, [H|T], Ctxs) ->
dec_used_contexts(Version, T, [H|Ctxs]).
%%-----------------------------------------------------------------
%% Func: dec_request_body
%% Args: Version - e.g. 1.2
%% Returns:
%%-----------------------------------------------------------------
dec_request_body(Version, ReqHdr, Rest, Len, ByteOrder, Buffer) ->
{Parameters, TypeCodes, _} =
dec_request_body(Version, ReqHdr#request_header.object_key,
ReqHdr#request_header.operation,
Rest, Len, ByteOrder, Buffer, Len),
{Version, ReqHdr, Parameters, TypeCodes}.
dec_request_body(Version, Object_key, Operation, Body, Len, ByteOrder, Buffer, Counter)
when Version == {1,2} ->
case orber_typedefs:get_op_def(Object_key, Operation) of
{RetType, [], OutParameters} ->
{[], {RetType, [], OutParameters}, Len};
{RetType, InParameters, OutParameters} ->
{Rest, Len1, NewC} = dec_align(Body, Len, 8, Counter),
{Parameters, Len2} = dec_parameters(Version, InParameters, Rest, Len1,
ByteOrder, Buffer, NewC),
{Parameters, {RetType, InParameters, OutParameters}, Len2}
end;
dec_request_body(Version, Object_key, Operation, Body, Len, ByteOrder, Buffer, Counter) ->
{RetType, InParameters, OutParameters} =
orber_typedefs:get_op_def(Object_key, Operation),
{Parameters, Len1} = dec_parameters(Version, InParameters, Body, Len, ByteOrder, Buffer, Counter),
{Parameters, {RetType, InParameters, OutParameters}, Len1}.
dec_parameters(_, [], _, Len, _, _, _) ->
{[], Len};
dec_parameters(Version, [P1 |InParList], Body, Len, ByteOrder, Buffer, Counter) ->
{Object, Rest, Len1, NewCounter} = dec_type(P1, Version, Body, Len, ByteOrder, Buffer, Counter),
{List, Len2} = dec_parameters(Version, InParList, Rest, Len1, ByteOrder, Buffer, NewCounter),
{[Object | List], Len2}.
%%-----------------------------------------------------------------
%% Func: dec_reply/5
%% Args:
%% Message - The message
%% Len0 - Number of bytes already read.
%% ByteOrder - little or big
%% Returns:
%% A tuple {ReplyHeader, Result} where ReplyHeader is a
%% reply_header record and Result the decode result.
%%-----------------------------------------------------------------
dec_reply(Version, TypeCodes, Message, Len0, ByteOrder) ->
{ReplyHeader, Rest, Len} = dec_reply_header(Version, Message, Len0, ByteOrder),
{Result, Par} =
case ReplyHeader#reply_header.reply_status of
'no_exception' ->
{R, P, _} = dec_reply_body(Version, TypeCodes, Rest, Len, ByteOrder, Message),
{R, P};
'system_exception' ->
{R, _} = dec_system_exception(Version, Rest, Len, ByteOrder),
{R, []};
'user_exception' ->
{R, _} = dec_user_exception(Version, Rest, Len, ByteOrder),
{R, []};
'location_forward' ->
{R, _, _} = dec_reply_body(Version, {{'tk_objref', "", ""}, [],[]},
Rest, Len, ByteOrder, Message),
{R, []};
%% This is deprecated in later version than CORBA-2.3.1. We'll leave it for
%% now.
'location_forward_perm' ->
{R, _, _} = dec_reply_body(Version, {{'tk_objref', "", ""}, [],[]},
Rest, Len, ByteOrder, Message),
{R, []};
'needs_addressing_mode' ->
{R, _, _} = dec_reply_body(Version, {'tk_short', [],[]},
Rest, Len, ByteOrder, Message),
{R, []}
end,
{ReplyHeader, Result, Par}.
%% ## NEW IIOP 1.2 ##
dec_reply_header(Version, Message, Len0, ByteOrder) when Version == {1,2} ->
{Request_id, Rest1, Len1} = dec_type('tk_ulong', Version, Message, Len0, ByteOrder),
{ReplyStatus, Rest2, Len2} = dec_reply_status(Version, Rest1, Len1, ByteOrder),
{Context, Rest, Len3} = dec_service_context(Version, Rest2, Len2, ByteOrder),
{#reply_header{service_context=Context, request_id=Request_id, reply_status=ReplyStatus},
Rest, Len3};
dec_reply_header(Version, Message, Len0, ByteOrder) ->
{Context, Rest1, Len1} = dec_service_context(Version, Message, Len0, ByteOrder),
{Request_id, Rest2, Len2} = dec_type('tk_ulong', Version, Rest1, Len1, ByteOrder),
{ReplyStatus, Rest, Len3} = dec_reply_status(Version, Rest2, Len2, ByteOrder),
{#reply_header{service_context=Context, request_id=Request_id, reply_status=ReplyStatus},
Rest, Len3}.
dec_reply_status(Version, Status, Len, ByteOrder) ->
{L, Rest, Len1}= dec_type('tk_ulong', Version, Status, Len, ByteOrder),
{dec_giop_reply_status_type(L), Rest, Len1}.
dec_reply_body(_, {'tk_void', _, []}, <<>>, Len, _, _) ->
%% This case is mainly to be able to avoid removing non-existent alignment for
%% IIOP-1.2 messages if the body should be empty, i.e., void return value and
%% no out parameters.
{ok, [], Len};
dec_reply_body(Version, {RetType, _InParameters, OutParameters}, Body, Len,
ByteOrder, Bytes) when Version == {1,2} ->
{Rest, Len1, Counter} = dec_align(Body, Len, 8, Len),
{Result, Rest2, Len2, C} = dec_type(RetType, Version, Rest, Len1, ByteOrder, Bytes, Counter),
{Par, Len3} = dec_parameters(Version, OutParameters, Rest2, Len2, ByteOrder, Bytes, C),
{Result, Par, Len3};
dec_reply_body(Version, {RetType, _InParameters, OutParameters}, Body, Len, ByteOrder, Bytes) ->
{Result, Rest, Len1, C} = dec_type(RetType, Version, Body, Len, ByteOrder, Bytes, Len),
{Par, Len2} = dec_parameters(Version, OutParameters, Rest, Len1, ByteOrder, Bytes, C),
{Result, Par, Len2}.
%%-----------------------------------------------------------------
%% Func: dec_cancel_request/3
%% Args:
%% Message - The message
%% Len - Number of bytes already read.
%% ByteOrder - little or big
%% Returns:
%% A cancel_request_header record.
%%-----------------------------------------------------------------
dec_cancel_request(Version, Message, Len, ByteOrder) ->
{Request_id, _, _} = dec_type('tk_ulong', Version, Message, Len, ByteOrder),
#cancel_request_header{request_id=Request_id}.
%%-----------------------------------------------------------------
%% Func: dec_locate_request/3
%% Args:
%% Message - The message
%% Len - Number of bytes already read.
%% ByteOrder - little or big
%% Returns:
%% A locate_request_header record.
%%-----------------------------------------------------------------
%% ## NEW IIOP 1.2 ##
dec_locate_request(Version, Message, Len, ByteOrder) when Version == {1,2} ->
{Request_id, Rest, Len1} = dec_type('tk_ulong', Version, Message, Len, ByteOrder),
{Object_key, _, _, _} = dec_target_addr(Version, Rest, Len1, ByteOrder, Request_id,
'object_forward'),
{Version, #locate_request_header{request_id=Request_id, object_key=Object_key}};
dec_locate_request(Version, Message, Len, ByteOrder) ->
{Request_id, Rest, Len1} = dec_type('tk_ulong', Version, Message, Len, ByteOrder),
{ObjKey, _, _} = dec_type({'tk_sequence', 'tk_octet', 0}, Version, Rest,
Len1, ByteOrder),
Object_key = dec_target_key(ObjKey, Request_id, Version, 'object_forward'),
{Version, #locate_request_header{request_id=Request_id, object_key=Object_key}}.
%%-----------------------------------------------------------------
%% Func: dec_locate_reply/3
%% Args:
%% Message - The message
%% Len - Number of bytes already read.
%% ByteOrder - little or big
%% Returns:
%% A locate_reply_header record.
%%-----------------------------------------------------------------
dec_locate_reply(Version, Message, Len, ByteOrder) ->
{ReplyHeader, Rest1, Len1} = dec_locate_reply_header(Version, Message, Len, ByteOrder),
{ReplyHeader, dec_locate_reply_body(Version, ReplyHeader#locate_reply_header.locate_status, Rest1,
Len1, ByteOrder)}.
dec_locate_reply_header(Version, Message, Len, ByteOrder) ->
{Request_id, Rest1, Len1} = dec_type('tk_ulong', Version, Message, Len, ByteOrder),
{Locate_status, Rest2, Len2} = dec_locate_status(Version, Rest1, Len1, ByteOrder),
{#locate_reply_header{request_id=Request_id, locate_status=Locate_status}, Rest2, Len2}.
dec_locate_reply_body(Version, LocateStatus, Rest, Len, ByteOrder) when Version == {1,2} ->
%% In CORBA-2.3.1 the LocateReply body didn't align the body (8-octet
%% boundry) for IIOP-1.2. This have been changed in CORBA-2.4 and
%% changed back in CORBA-2.6. Hence, we should not change this.
case LocateStatus of
'object_forward' ->
{ObjRef, _, _, _} = dec_objref(Version, Rest, Len, ByteOrder),
ObjRef;
'object_forward_perm' ->
%% This is deprecated in later version than CORBA-2.3.1. We'll leave it for
%% now.
{ObjRef, _, _, _} = dec_objref(Version, Rest, Len, ByteOrder),
ObjRef;
'loc_system_exception' ->
%% This should be updated but since 'dec_system_exception' removes
%% alignment, which the LocateReplyBody don't have, for 1.2 we
%% pretend it's 1.1 for now.
{SysExc, _} = dec_system_exception({1,1}, Rest, Len, ByteOrder),
corba:raise(SysExc);
'loc_needs_addressing_mode' ->
%% Not supported.
[];
_ ->
[]
end;
dec_locate_reply_body(Version, LocateStatus, Rest, Len, ByteOrder) ->
case LocateStatus of
'object_forward' ->
{ObjRef, _, _, _} = dec_objref(Version, Rest, Len, ByteOrder),
ObjRef;
_ ->
[]
end.
dec_locate_status(Version, Bytes, Len, ByteOrder) ->
{L, Rest, Len1} = dec_type('tk_ulong', Version, Bytes, Len, ByteOrder),
{dec_giop_locate_status_type(L), Rest, Len1}.
%%-----------------------------------------------------------------
%% Func: dec_fragment_header/5
%% Args:
%% Message - The message
%% Len0 - Number of bytes already read.
%% ByteOrder - little or big
%% Returns:
%%-----------------------------------------------------------------
dec_fragment_header(Version, Message, Len0, ByteOrder, _Buffer) when Version == {1,2} ->
{RequestId, Rest1, Len1, _} = dec_type('tk_ulong', Version, Message, Len0,
ByteOrder, [], 0),
{Version, #fragment_header{request_id=RequestId}, Rest1, Len1, ByteOrder};
dec_fragment_header(Version, _Message, _Len0, _ByteOrder, _Buffer) ->
%% The FragmentHeader is IIOP-1.2 specific. Hence, do nothing here.
orber:dbg("[~p] cdr_decode:dec_fragment_header(~p)~n"
"Orber only supports fragmented messages for IIOP-1.2.",
[?LINE, Version], ?DEBUG_LEVEL),
exit(message_error).
% {Version, #fragment_header{}, Message, Len0, ByteOrder}.
%%-----------------------------------------------------------------
%% Func: dec_giop_reply_status_type
%% Args:
%% An integer status code
%% Returns:
%% An atom which is the reply status
%%-----------------------------------------------------------------
dec_giop_reply_status_type(0) ->
'no_exception';
dec_giop_reply_status_type(1) ->
'user_exception';
dec_giop_reply_status_type(2) ->
'system_exception';
dec_giop_reply_status_type(3) ->
'location_forward';
%% ## IIOP-1.2 ##
dec_giop_reply_status_type(4) ->
'location_forward_perm';
dec_giop_reply_status_type(5) ->
'needs_addressing_mode'.
%%-----------------------------------------------------------------
%% Func: dec_giop_locate_status_type
%% Args:
%% An integer status code
%% Returns:
%% An atom which is the reply status
%%-----------------------------------------------------------------
dec_giop_locate_status_type(0) ->
'unknown_object';
dec_giop_locate_status_type(1) ->
'object_here';
dec_giop_locate_status_type(2) ->
'object_forward';
%% ## IIOP-1.2 ##
dec_giop_locate_status_type(3) ->
'object_forward_perm';
dec_giop_locate_status_type(4) ->
'loc_system_exception';
dec_giop_locate_status_type(5) ->
'loc_needs_addressing_mode'.
%%-----------------------------------------------------------------
%% Func: dec_type/5
%%-----------------------------------------------------------------
dec_type(Type, Version, Bytes, Len, ByteOrder) ->
{Val, Rest, Len2, _} =
dec_type(Type, Version, Bytes, Len, ByteOrder, [], 0),
{Val, Rest, Len2}.
dec_type('tk_null', _Version, Bytes, Len, _, _, C) ->
{'null', Bytes, Len, C};
dec_type('tk_void', _Version, Bytes, Len, _, _, C) ->
{'ok', Bytes, Len, C};
dec_type('tk_short', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 2, C),
{Short, Rest1} = cdrlib:dec_short(ByteOrder, Rest),
{Short, Rest1, Len1 + 2, NewC+2};
dec_type('tk_long', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 4, C),
{Long, Rest1} = cdrlib:dec_long(ByteOrder, Rest),
{Long, Rest1, Len1 + 4, NewC+4};
dec_type('tk_longlong', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 8, C),
{Long, Rest1} = cdrlib:dec_longlong(ByteOrder, Rest),
{Long, Rest1, Len1 + 8, NewC+8};
dec_type('tk_ushort', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 2, C),
{Short, Rest1} = cdrlib:dec_unsigned_short(ByteOrder, Rest),
{Short, Rest1, Len1 + 2, NewC+2};
dec_type('tk_ulong', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 4, C),
{Long, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
{Long, Rest1, Len1 + 4, NewC+4};
dec_type('tk_ulonglong', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 8, C),
{Long, Rest1} = cdrlib:dec_unsigned_longlong(ByteOrder, Rest),
{Long, Rest1, Len1 + 8, NewC+8};
dec_type('tk_float', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 4, C),
{Float, Rest1} = cdrlib:dec_float(ByteOrder, Rest),
{Float, Rest1, Len1 + 4, NewC+4};
dec_type('tk_double', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 8, C),
{Double, Rest1} = cdrlib:dec_double(ByteOrder, Rest),
{Double, Rest1, Len1 + 8, NewC+8};
dec_type('tk_boolean', _Version, Bytes, Len, _, _, C) ->
{Bool, Rest} = cdrlib:dec_bool(Bytes),
{Bool, Rest, Len + 1, C+1};
dec_type('tk_char', _Version, Bytes, Len, _, _, C) ->
{Char, Rest} = cdrlib:dec_char(Bytes),
{Char, Rest, Len + 1, C+1};
dec_type('tk_wchar', {1,2}, Bytes, Len, _ByteOrder, _, C) ->
%% For IIOP-1.2 a wchar is almost encoded the same way as an octet-sequence.
%% The only difference is that the length-value is an octet as well.
case cdrlib:dec_octet(Bytes) of
{2, Rest1} ->
%% Currently we only allow 2-bytes wchar.
{WChar, Rest2} = cdrlib:dec_unsigned_short(big, Rest1),
{WChar, Rest2, Len+3, C+3};
{What, _} ->
orber:dbg("[~p] cdr_decode:dec_type(~p); unsupported wchar",
[?LINE, What], ?DEBUG_LEVEL),
corba:raise(#'DATA_CONVERSION'{completion_status=?COMPLETED_NO})
end;
%% For 1.1 the wchar is limited to the use of two-octet fixed-length encoding.
dec_type('tk_wchar', _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 2, C),
{WChar, Rest2} = cdrlib:dec_unsigned_short(ByteOrder, Rest),
{WChar, Rest2, Len1 + 2, NewC+2};
dec_type('tk_octet', _Version, Bytes, Len, _, _, C) ->
{Octet, Rest} = cdrlib:dec_octet(Bytes),
{Octet, Rest, Len + 1, C+1};
dec_type('tk_any', Version, Bytes, Len, ByteOrder, Buff, C) ->
{TypeCode, Rest1, Len1, NewC} = dec_type('tk_TypeCode', Version, Bytes, Len, ByteOrder, Buff, C),
{Value, Rest2, Len2, NewC2} = dec_type(TypeCode, Version, Rest1, Len1, ByteOrder, Buff, NewC),
{#any{typecode=TypeCode, value=Value}, Rest2, Len2, NewC2};
dec_type('tk_TypeCode', Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_type_code(Version, Bytes, Len, ByteOrder, Buff, C);
dec_type('tk_Principal', Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_sequence(Version, Bytes, 'tk_octet', Len, ByteOrder, Buff, C);
dec_type({'tk_objref', _IFRId, _Name}, Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_objref(Version, Bytes, Len, ByteOrder, Buff, C);
dec_type({'tk_struct', IFRId, Name, ElementList}, Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_struct(Version, IFRId, Name, ElementList, Bytes, Len, ByteOrder, Buff, C);
dec_type({'tk_union', IFRId, Name, DiscrTC, Default, ElementList},
Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_union(Version, IFRId, Name, DiscrTC, Default, ElementList, Bytes, Len, ByteOrder, Buff, C);
dec_type({'tk_enum', _IFRId, _Name, ElementList}, _Version, Bytes, Len, ByteOrder, _, C) ->
{Rest, Len1, NewC} = dec_align(Bytes, Len, 4, C),
{Enum, Rest1} = cdrlib:dec_enum(ByteOrder, ElementList, Rest),
{Enum, Rest1, Len1 + 4, NewC+4};
dec_type({'tk_string', _MaxLength}, Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_string(Version, Bytes, Len, ByteOrder, Buff, C);
dec_type({'tk_wstring', _MaxLength}, Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_wstring(Version, Bytes, Len, ByteOrder, Buff, C);
dec_type({'tk_sequence', ElemTC, _MaxLength}, Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_sequence(Version, Bytes, ElemTC, Len, ByteOrder, Buff, C);
dec_type({'tk_array', ElemTC, Size}, Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_array(Version, Bytes, Size, ElemTC, Len, ByteOrder, Buff, C);
dec_type({'tk_alias', _IFRId, _Name, TC}, Version, Bytes, Len, ByteOrder, Buff, C) ->
dec_type(TC, Version, Bytes, Len, ByteOrder, Buff, C);
%dec_type({'tk_except', IFRId, Name, ElementList}, Version, Bytes, Len, ByteOrder) ->
dec_type({'tk_fixed', Digits, Scale}, _Version, Bytes, Len, _ByteOrder, _Buff, C) ->
dec_fixed(Digits, Scale, Bytes, Len, C);
dec_type(Type, _, _, _, _, _, _) ->
orber:dbg("[~p] cdr_decode:dec_type(~p)~n"
"Incorrect TypeCode or unsupported type.",
[?LINE, Type], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?ORBER_VMCID bor 13), completion_status=?COMPLETED_MAYBE}).
stringify_enum({tk_enum,_,_,_}, Label) ->
atom_to_list(Label);
stringify_enum(_, Label) ->
Label.
%%-----------------------------------------------------------------
%% Func: dec_fixed
%%-----------------------------------------------------------------
%% Digits eq. total number of digits.
%% Scale eq. position of the decimal point.
%% E.g. fixed<5,2> - "123.45"
%% E.g. fixed<4,2> - "12.34"
%% These are encoded as:
%% ## <5,2> ## ## <4,2> ##
%% 1,2 0,1 eq. 1 octet
%% 3,4 2,3
%% 5,0xC 4,0xC
%%
%% Each number is encoded as a half-octet. Note, for <4,2> a zero is
%% added first to to be able to create "even" octets.
dec_fixed(0, 0, Bytes, Len, C) ->
{#fixed{digits = 0, scale = 0, value = ""}, Bytes, Len, C};
dec_fixed(Digits, Scale, Bytes, Len, C) ->
case ?ODD(Digits) of
true ->
{Fixed, Bytes2, Len2, C2, Sign} = dec_fixed_2(Digits, Scale, Bytes, Len, C),
case Sign of
?FIXED_POSITIVE ->
{#fixed{digits = Digits, scale = Scale,
value = list_to_integer(Fixed)}, Bytes2, Len2, C2};
?FIXED_NEGATIVE ->
{#fixed{digits = Digits, scale = Scale,
value = -list_to_integer(Fixed)}, Bytes2, Len2, C2}
end;
false ->
%% If the length (of fixed) is even a zero is added first.
%% Subtract that we've read 1 digit.
<<0:4,D2:4,T/binary>> = Bytes,
{Fixed, Bytes2, Len2, C2, Sign} = dec_fixed_2(Digits-1, Scale, T, Len+1, C+1),
case Sign of
?FIXED_POSITIVE ->
{#fixed{digits = Digits, scale = Scale,
value = list_to_integer([D2+48|Fixed])}, Bytes2, Len2, C2};
?FIXED_NEGATIVE ->
{#fixed{digits = Digits, scale = Scale,
value = -list_to_integer([D2+48|Fixed])}, Bytes2, Len2, C2}
end
end.
dec_fixed_2(1, _Scale, <<D1:4,?FIXED_POSITIVE:4,T/binary>>, Len, C) ->
{[D1+48], T, Len+1, C+1, ?FIXED_POSITIVE};
dec_fixed_2(1, _Scale, <<D1:4,?FIXED_NEGATIVE:4,T/binary>>, Len, C) ->
{[D1+48], T, Len+1, C+1, ?FIXED_NEGATIVE};
dec_fixed_2(Digits, Scale, _Bytes, _Len, _C) when Digits =< 0 ->
orber:dbg("[~p] cdr_decode:dec_fixed_2(~p, ~p)~n"
"Malformed fixed type.", [?LINE, Digits, Scale], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?ORBER_VMCID bor 14), completion_status=?COMPLETED_MAYBE});
dec_fixed_2(Digits, Scale, <<>>, _Len, _C) ->
orber:dbg("[~p] cdr_decode:dec_fixed_2(~p, ~p)~n"
"The fixed type received was to short.",
[?LINE, Digits, Scale], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?ORBER_VMCID bor 14), completion_status=?COMPLETED_MAYBE});
dec_fixed_2(Digits, Scale, <<D1:4,D2:4,T/binary>>, Len, C) ->
{Seq, Rest2, Len2, NewC2, Sign} = dec_fixed_2(Digits-2, Scale, T, Len+1, C+1),
{[D1+48, D2+48 | Seq], Rest2, Len2, NewC2, Sign}.
%%-----------------------------------------------------------------
%% Func: dec_sequence/7 and dec_sequence/8
%%-----------------------------------------------------------------
dec_sequence(_Version, Message, 'tk_octet', Len, ByteOrder, _Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
<<OctetSeq:Size/binary, Rest2/binary>> = Rest1,
{binary_to_list(OctetSeq), Rest2, Len1+4+Size, NewC+4+Size};
dec_sequence(_Version, Message, 'tk_char', Len, ByteOrder, _Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
<<OctetSeq:Size/binary, Rest2/binary>> = Rest1,
{binary_to_list(OctetSeq), Rest2, Len1+4+Size, NewC+4+Size};
%% We test if it's a sequence of struct's or unions. By doing this we only
%% have to look up the IFR-ID once instead of N times (N eq length of sequence).
dec_sequence(Version, Message, {'tk_struct', IFRId, ShortName, ElementList},
Len, ByteOrder, Buff, C) when IFRId /= "", ShortName /= "" ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
case IFRId of
?SYSTEM_TYPE ->
dec_sequence_struct(Version, Rest1, Size, ElementList, Len1 + 4,
ByteOrder, Buff, NewC+4, ShortName);
_ ->
Name = ifrid_to_name(IFRId, ?IFR_StructDef),
dec_sequence_struct(Version, Rest1, Size, ElementList, Len1 + 4,
ByteOrder, Buff, NewC+4, Name)
end;
dec_sequence(Version, Message,
{'tk_union', ?SYSTEM_TYPE, TCName, DiscrTC, Default, ElementList},
Len, ByteOrder, Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
dec_sequence_union(Version, Rest1, Size, DiscrTC, Default, ElementList, Len1 + 4,
ByteOrder, Buff, NewC+4, TCName);
dec_sequence(Version, Message,
{'tk_union', IFRId, _TCName, DiscrTC, Default, ElementList},
Len, ByteOrder, Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
Name = ifrid_to_name(IFRId, ?IFR_UnionDef),
dec_sequence_union(Version, Rest1, Size, DiscrTC, Default, ElementList, Len1 + 4,
ByteOrder, Buff, NewC+4, Name);
dec_sequence(Version, Message, TypeCode, Len, ByteOrder, Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
dec_sequence(Version, Rest1, Size, TypeCode, Len1 + 4, ByteOrder, Buff, NewC+4).
dec_sequence(_, Message, 0, _Type, Len, _ByteOrder, _Buff, C) ->
{[], Message, Len, C};
dec_sequence(Version, Message, N, Type, Len, ByteOrder, Buff, C) ->
{Object, Rest1, Len1, NewC} = dec_type(Type, Version, Message, Len, ByteOrder, Buff, C),
{Seq, Rest2, Len2, NewC2} = dec_sequence(Version, Rest1, N - 1, Type, Len1, ByteOrder, Buff, NewC),
{[Object | Seq], Rest2, Len2, NewC2}.
dec_sequence_struct(_, Message, 0, _Type, Len, _ByteOrder, _Buff, C, _Name) ->
{[], Message, Len, C};
dec_sequence_struct(Version, Message, N, TypeCodeList, Len, ByteOrder, Buff, C, Name) ->
{Struct, Rest1, Len1, NewC} = dec_struct1(Version, TypeCodeList, Message, Len, ByteOrder, Buff, C),
{Seq, Rest2, Len2, NewC2} = dec_sequence_struct(Version, Rest1, N - 1, TypeCodeList, Len1, ByteOrder,
Buff, NewC, Name),
{[list_to_tuple([Name |Struct]) | Seq], Rest2, Len2, NewC2}.
dec_sequence_union(_, Message, 0, _DiscrTC, _Default, _ElementList,
Len, _ByteOrder, _Buff, C, _Name) ->
{[], Message, Len, C};
dec_sequence_union(Version, Message, N, DiscrTC, Default, ElementList,
Len, ByteOrder, Buff, C, Name) when is_list(ElementList) ->
{Label, Rest1, Len1, NewC} = dec_type(DiscrTC, Version, Message, Len, ByteOrder, Buff, C),
Result = dec_union(Version, stringify_enum(DiscrTC, Label), ElementList, Default,
Rest1, Len1, ByteOrder, Buff, NewC),
{Value, Rest2, Len2, NewC3} = case Result of
{default, R, L, NewC2} ->
dec_union(Version, default, ElementList, Default,
R, L, ByteOrder, Buff, NewC2);
X ->
X
end,
{Seq, Rest3, Len3, NewC4} = dec_sequence_union(Version, Rest2, N - 1,
DiscrTC, Default, ElementList,
Len2, ByteOrder,
Buff, NewC3, Name),
{[{Name, Label, Value} | Seq], Rest3, Len3, NewC4};
dec_sequence_union(Version, Message, N, _DiscrTC, _Default, Module,
Len, ByteOrder, Buff, C, Name) when is_atom(Module) ->
case catch Module:tc() of
{tk_union, _, _, DiscrTC, Default, ElementList} ->
dec_sequence_union(Version, Message, N, DiscrTC, Default, ElementList,
Len, ByteOrder, Buff, C, Name);
What ->
orber:dbg("[~p] ~p:dec_sequence_union(~p). Union module doesn't exist or incorrect.",
[?LINE, ?MODULE, What], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_MAYBE})
end.
%% A special case; when something is encapsulated (i.e. sent as octet-sequence)
%% we sometimes don not want the result to be converted to a list.
dec_octet_sequence_bin(_Version, Message, Len, ByteOrder, _Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
<<OctetSeq:Size/binary, Rest2/binary>> = Rest1,
{OctetSeq, Rest2, Len1+4+Size, NewC+4+Size}.
%%-----------------------------------------------------------------
%% Func: dec_array/5
%%-----------------------------------------------------------------
dec_array(Version, Message, Size, TypeCode, Len, ByteOrder, Buff, C) ->
{Seq, Rest1, Len1, NewC} = dec_sequence(Version, Message, Size, TypeCode, Len,
ByteOrder, Buff, C),
{list_to_tuple(Seq), Rest1, Len1, NewC}.
%%-----------------------------------------------------------------
%% Func: dec_string/4
%%-----------------------------------------------------------------
dec_string(_Version, Message, Len, ByteOrder, _Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
if
Size > 0 ->
DataSize = Size-1,
<<String:DataSize/binary, _Null:1/binary, Rest2/binary>> = Rest1,
{binary_to_list(String), Rest2, Len1+4+Size, NewC+4+Size};
true ->
{"", Rest1, Len1 + 4, NewC+4}
end.
%%-----------------------------------------------------------------
%% Func: dec_string/4
%%-----------------------------------------------------------------
dec_wstring({1,2}, Message, Len, ByteOrder, Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Octets, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
if
Octets == 0 ->
{"", Rest1, Len1 + 4, NewC+4};
Octets > 0 ->
Size = round(Octets/2),
{String, Rest2, Len2, NewC2} =
dec_sequence({1,2}, Rest1, Size, 'tk_ushort',
Len1 + 4, big, Buff, NewC+4),
{String, Rest2, Len2, NewC2};
true ->
orber:dbg("[~p] cdr_decode:dec_wstring(~p);",
[?LINE, Rest1], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_NO})
end;
dec_wstring(Version, Message, Len, ByteOrder, Buff, C) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, C),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
if
Size > 0 ->
{String, Rest2, Len2, NewC2} = dec_sequence(Version, Rest1, Size - 1, 'tk_wchar',
Len1 + 4, ByteOrder, Buff, NewC+4),
%% Remove the NULL character.
{_, Rest3} = cdrlib:dec_unsigned_short(ByteOrder, Rest2),
{String, Rest3, Len2 + 2, NewC2+2};
Size == 0 ->
{"", Rest1, Len1 + 4, NewC+4};
true ->
orber:dbg("[~p] cdr_decode:dec_wstring(~p);",
[?LINE, Rest1], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_NO})
end.
%%-----------------------------------------------------------------
%% Func: dec_union/9
%%-----------------------------------------------------------------
%% ## NEW IIOP 1.2 ##
dec_union(Version, ?SYSTEM_TYPE, Name, DiscrTC, Default, ElementList, Bytes,
Len, ByteOrder, Buff, C) ->
{Label, Rest1, Len1, NewC} = dec_type(DiscrTC, Version, Bytes, Len, ByteOrder, Buff, C),
{Value, Rest2, Len2, NewC3} = dec_union(Version, Label, ElementList, Default,
Rest1, Len1, ByteOrder, Buff, NewC),
{{Name, Label, Value}, Rest2, Len2, NewC3};
dec_union(Version, IFRId, _, DiscrTC, Default, ElementList, Bytes, Len,
ByteOrder, Buff, C) when is_list(ElementList) ->
{Label, Rest1, Len1, NewC} = dec_type(DiscrTC, Version, Bytes, Len, ByteOrder, Buff, C),
Result = dec_union(Version, stringify_enum(DiscrTC, Label), ElementList, Default,
Rest1, Len1, ByteOrder, Buff, NewC),
{Value, Rest2, Len2, NewC3} = case Result of
{default, R, L, NewC2} ->
dec_union(Version, default, ElementList, Default,
R, L, ByteOrder, Buff, NewC2);
X ->
X
end,
Name = ifrid_to_name(IFRId, ?IFR_UnionDef),
{{Name, Label, Value}, Rest2, Len2, NewC3};
dec_union(Version, IFRId, _, _DiscrTC, _Default, Module, Bytes, Len,
ByteOrder, Buff, C) when is_atom(Module) ->
case catch Module:tc() of
{tk_union, _, Name, DiscrTC, Default, ElementList} ->
dec_union(Version, IFRId, Name, DiscrTC, Default, ElementList, Bytes, Len,
ByteOrder, Buff, C);
What ->
orber:dbg("[~p] ~p:dec_union(~p). Union module doesn't exist or incorrect.",
[?LINE, ?MODULE, What], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_MAYBE})
end.
dec_union(_, _, [], Default, Message, Len, _, _Buff, C) when Default < 0 ->
{undefined, Message, Len, C};
dec_union(_, _, [], _Default, Message, Len, _, _Buff, C) ->
{default, Message, Len, C};
dec_union(Version, Label, [{Label, _Name, Type}|_List], _Default, Message, Len, ByteOrder, Buff, C) ->
dec_type(Type, Version, Message, Len, ByteOrder, Buff, C);
dec_union(Version, Label, [_H|List], Default, Message, Len, ByteOrder, Buff, C) ->
dec_union(Version, Label, List, Default, Message, Len, ByteOrder, Buff, C).
%%-----------------------------------------------------------------
%% Func: dec_struct/7
%%-----------------------------------------------------------------
dec_struct(Version, "", "", TypeCodeList, Message, Len, ByteOrder, Buff, C) ->
{Struct, Rest, Len1, NewC} = dec_struct1(Version, TypeCodeList, Message, Len, ByteOrder, Buff, C),
{list_to_tuple(Struct), Rest, Len1, NewC};
dec_struct(Version, [], Name, TypeCodeList, Message, Len, ByteOrder, Buff, C) ->
%% This case is used when communicating with ORB:s which don't supply the IFRId
%% field in struct type codes (used in any)
{Struct, Rest, Len1, NewC} = dec_struct1(Version, TypeCodeList, Message, Len, ByteOrder, Buff, C),
{list_to_tuple([list_to_atom(Name) |Struct]), Rest, Len1, NewC};
dec_struct(Version, ?SYSTEM_TYPE, ShortName, TypeCodeList, Message, Len, ByteOrder, Buff, C) ->
{Struct, Rest, Len1, NewC} = dec_struct1(Version, TypeCodeList, Message, Len, ByteOrder, Buff, C),
{list_to_tuple([ShortName |Struct]), Rest, Len1, NewC};
dec_struct(Version, IFRId, _ShortName, TypeCodeList, Message, Len, ByteOrder, Buff, C) ->
Name = ifrid_to_name(IFRId, ?IFR_StructDef),
{Struct, Rest, Len1, NewC} = dec_struct1(Version, TypeCodeList, Message, Len, ByteOrder, Buff, C),
{list_to_tuple([Name |Struct]), Rest, Len1, NewC}.
dec_struct1(_, [], Message, Len, _ByteOrder, _, C) ->
{[], Message, Len, C};
dec_struct1(Version, [{_ElemName, ElemType} | TypeCodeList], Message, Len, ByteOrder, Buff, C) ->
{Element, Rest, Len1, NewC} = dec_type(ElemType, Version, Message, Len, ByteOrder, Buff, C),
{Struct, Rest1, Len2, NewC2} = dec_struct1(Version, TypeCodeList, Rest, Len1, ByteOrder, Buff, NewC),
{[Element |Struct], Rest1, Len2, NewC2};
dec_struct1(Version, Module, Message, Len, ByteOrder, Buff, C) ->
case catch Module:tc() of
{tk_struct, _, _, TypeCodeList} ->
dec_struct1(Version, TypeCodeList, Message, Len, ByteOrder, Buff, C);
What ->
orber:dbg("[~p] ~p:dec_struct1(~p). Struct module doesn't exist or incorrect.",
[?LINE, ?MODULE, What], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_MAYBE})
end.
ifrid_to_name([], Type) ->
orber:dbg("[~p] ~p:ifrid_to_name([], ~p). No Id supplied.",
[?LINE, ?MODULE, Type], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?CORBA_OMGVMCID bor 11),
completion_status=?COMPLETED_MAYBE});
ifrid_to_name(Id, Type) ->
case orber:light_ifr() of
true ->
orber_ifr:get_module(Id, Type);
false ->
case catch ifrid_to_name_helper(Id, Type) of
{'EXCEPTION', E} ->
corba:raise(E);
{'EXIT',{aborted,{no_exists,_}}} ->
case orber:get_lightweight_nodes() of
false ->
orber:dbg("[~p] cdr_decode:ifrid_to_name(~p, ~p). IFRid not found.",
[?LINE, Id, Type], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_MAYBE});
Nodes ->
{A,B,C} = now(),
random:seed(A,B,C),
L = length(Nodes),
IFR = get_ifr_node(Nodes, random:uniform(L), L),
list_to_atom('OrberApp_IFR':get_absolute_name(IFR, Id))
end;
{'EXIT', Other} ->
orber:dbg("[~p] cdr_decode:ifrid_to_name(~p). Unknown: ~p",
[?LINE, Id, Other], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_MAYBE});
Name ->
list_to_atom(Name)
end
end.
ifrid_to_name_helper(Id, ?IFR_UnionDef) ->
case mnesia:dirty_index_read(ir_UnionDef, Id, #ir_UnionDef.id) of
[#ir_UnionDef{absolute_name = [$:,$:|N]}] ->
change_colons_to_underscore(N, []);
Other ->
orber:dbg("[~p] cdr_decode:ifrid_to_name(~p). IFR Id not found: ~p",
[?LINE, Id, Other], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?ORBER_VMCID bor 9),
completion_status=?COMPLETED_MAYBE})
end;
ifrid_to_name_helper(Id, ?IFR_StructDef) ->
case mnesia:dirty_index_read(ir_StructDef, Id, #ir_StructDef.id) of
[#ir_StructDef{absolute_name = [$:,$:|N]}] ->
change_colons_to_underscore(N, []);
Other ->
orber:dbg("[~p] cdr_decode:ifrid_to_name(~p). IFR Id not found: ~p",
[?LINE, Id, Other], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?ORBER_VMCID bor 10),
completion_status=?COMPLETED_MAYBE})
end;
ifrid_to_name_helper(Id, ?IFR_ExceptionDef) ->
case mnesia:dirty_index_read(ir_ExceptionDef, Id, #ir_ExceptionDef.id) of
[#ir_ExceptionDef{absolute_name = [$:,$:|N]}] ->
change_colons_to_underscore(N, []);
Other ->
orber:dbg("[~p] cdr_decode:ifrid_to_name(~p). IFR Id not found: ~p",
[?LINE, Id, Other], ?DEBUG_LEVEL),
corba:raise(#'UNKNOWN'{minor=(?CORBA_OMGVMCID bor 1),
completion_status=?COMPLETED_MAYBE})
end.
change_colons_to_underscore([$:, $: | T], Acc) ->
change_colons_to_underscore(T, [$_ |Acc]);
change_colons_to_underscore([H |T], Acc) ->
change_colons_to_underscore(T, [H |Acc]);
change_colons_to_underscore([], Acc) ->
lists:reverse(Acc).
get_ifr_node([], _, _) ->
%% Were not able to contact any of the given nodes.
orber:dbg("[~p] cdr_decode:get_ifr_node([]). No Node available.",
[?LINE], ?DEBUG_LEVEL),
corba:raise(#'INTERNAL'{minor=(?ORBER_VMCID bor 1), completion_status=?COMPLETED_MAYBE});
get_ifr_node(Nodes, N, L) ->
Node = lists:nth(N, Nodes),
case catch corba:resolve_initial_references_remote("OrberIFR", [Node]) of
IFR when is_record(IFR, 'IOP_IOR') ->
IFR;
_ ->
%% Not able to commincate with the node. Try next one.
NewL = L-1,
get_ifr_node(lists:delete(Node, Nodes), random:uniform(NewL), NewL)
end.
%%-----------------------------------------------------------------
%% Func: dec_objref/4
%%-----------------------------------------------------------------
dec_objref(Version, Message, Len, ByteOrder) ->
dec_objref(Version, Message, Len, ByteOrder, [], 0).
dec_objref(Version, Message, Len, ByteOrder, _Buff, C) ->
{IOR, Rest, Length} = iop_ior:decode(Version, Message, Len, ByteOrder),
{IOR, Rest, Length, C+Length-Len}.
%%-----------------------------------------------------------------
%% Func: dec_system_exception/4 and dec_user_exception/4
%%-----------------------------------------------------------------
dec_system_exception(Version, Message, Len, ByteOrder) when Version == {1,2} ->
{Rest0, Len0, _Counter} = dec_align(Message, Len, 8, Len),
{TypeId, Rest1, Len1} = dec_type({'tk_string', 0}, Version, Rest0, Len0, ByteOrder),
Name = orber_exceptions:get_name(TypeId, ?SYSTEM_EXCEPTION),
{Struct, _Rest2, Len2} =
dec_exception_1(Version, [{"minor",'tk_ulong'},
{"completed",
{'tk_enum', "", "completion_status",
["COMPLETED_YES", "COMPLETED_NO",
"COMPLETED_MAYBE"]}}],
Rest1, Len1, ByteOrder),
{list_to_tuple([Name, "" |Struct]), Len2};
dec_system_exception(Version, Message, Len, ByteOrder) ->
{TypeId, Rest1, Len1} = dec_type({'tk_string', 0}, Version, Message, Len, ByteOrder),
Name = orber_exceptions:get_name(TypeId, ?SYSTEM_EXCEPTION),
{Struct, _Rest2, Len2} =
dec_exception_1(Version, [{"minor",'tk_ulong'},
{"completed",
{'tk_enum', "", "completion_status",
["COMPLETED_YES", "COMPLETED_NO",
"COMPLETED_MAYBE"]}}],
Rest1, Len1, ByteOrder),
{list_to_tuple([Name, "" |Struct]), Len2}.
dec_user_exception(Version, Message, Len, ByteOrder) when Version == {1,2} ->
{Rest0, Len0, _Counter} = dec_align(Message, Len, 8, Len),
{TypeId, Rest1, Len1} = dec_type({'tk_string', 0}, Version, Rest0, Len0, ByteOrder),
Name = ifrid_to_name(TypeId, ?IFR_ExceptionDef),
{'tk_except', _, _, ElementList} = get_user_exception_type(TypeId),
{Struct, _Rest2, Len2} = dec_exception_1(Version, ElementList, Rest1, Len1,
ByteOrder),
{list_to_tuple([Name, TypeId |Struct]), Len2};
dec_user_exception(Version, Message, Len, ByteOrder) ->
{TypeId, Rest1, Len1} = dec_type({'tk_string', 0}, Version, Message, Len, ByteOrder),
Name = ifrid_to_name(TypeId, ?IFR_ExceptionDef),
{'tk_except', _, _, ElementList} = get_user_exception_type(TypeId),
{Struct, _Rest2, Len2} = dec_exception_1(Version, ElementList, Rest1, Len1,
ByteOrder),
{list_to_tuple([Name, TypeId |Struct]), Len2}.
dec_exception_1(_, [], Message, Len, _ByteOrder) ->
{[], Message, Len};
dec_exception_1(Version, [{_ElemName, ElemType} | ElementList], Message,
Len, ByteOrder) ->
{Element, Rest, Len1} = dec_type(ElemType, Version, Message, Len, ByteOrder),
{Struct, Rest1, Len2} = dec_exception_1(Version, ElementList, Rest, Len1,
ByteOrder),
{[Element |Struct], Rest1, Len2}.
get_user_exception_type(TypeId) ->
case orber:light_ifr() of
true ->
orber_ifr:get_tc(TypeId, ?IFR_ExceptionDef);
false ->
case orber:get_lightweight_nodes() of
false ->
case mnesia:dirty_index_read(ir_ExceptionDef, TypeId,
#ir_ExceptionDef.id) of
[ExcDef] when is_record(ExcDef, ir_ExceptionDef) ->
ExcDef#ir_ExceptionDef.type;
Other ->
orber:dbg("[~p] cdr_decode:get_user_exception_type(~p). IFR Id not found: ~p",
[?LINE, TypeId, Other], ?DEBUG_LEVEL),
corba:raise(#'UNKNOWN'{minor=(?CORBA_OMGVMCID bor 1),
completion_status=?COMPLETED_MAYBE})
end;
Nodes ->
{A,B,C} = now(),
random:seed(A,B,C),
L = length(Nodes),
IFR = get_ifr_node(Nodes, random:uniform(L), L),
'OrberApp_IFR':get_user_exception_type(IFR, TypeId)
end
end.
%%-----------------------------------------------------------------
%% Func: dec_type_code/4
%%-----------------------------------------------------------------
dec_type_code(Version, Message, Len, ByteOrder, Buff, C) ->
{TypeNo, Message1, Len1, NewC} = dec_type('tk_ulong', Version, Message, Len, ByteOrder, Buff, C),
TC = dec_type_code(TypeNo, Version, Message1, Len1, ByteOrder, Buff, NewC),
erase(orber_indirection),
TC.
%%-----------------------------------------------------------------
%% Func: dec_type_code/5
%%-----------------------------------------------------------------
dec_type_code(0, _, Message, Len, _, _, C) ->
{'tk_null', Message, Len, C};
dec_type_code(1, _, Message, Len, _, _, C) ->
{'tk_void', Message, Len, C};
dec_type_code(2, _, Message, Len, _, _, C) ->
{'tk_short', Message, Len, C};
dec_type_code(3, _, Message, Len, _, _, C) ->
{'tk_long', Message, Len, C};
dec_type_code(23, _, Message, Len, _, _, C) ->
{'tk_longlong', Message, Len, C};
dec_type_code(25, _, Message, Len, _, _, C) ->
{'tk_longdouble', Message, Len, C};
dec_type_code(4, _, Message, Len, _, _, C) ->
{'tk_ushort', Message, Len, C};
dec_type_code(5, _, Message, Len, _, _, C) ->
{'tk_ulong', Message, Len, C};
dec_type_code(24, _, Message, Len, _, _, C) ->
{'tk_ulonglong', Message, Len, C};
dec_type_code(6, _, Message, Len, _, _, C) ->
{'tk_float', Message, Len, C};
dec_type_code(7, _, Message, Len, _, _, C) ->
{'tk_double', Message, Len, C};
dec_type_code(8, _, Message, Len, _, _, C) ->
{'tk_boolean', Message, Len, C};
dec_type_code(9, _, Message, Len, _, _, C) ->
{'tk_char', Message, Len, C};
dec_type_code(26, _, Message, Len, _, _, C) ->
{'tk_wchar', Message, Len, C};
dec_type_code(10, _, Message, Len, _, _, C) ->
{'tk_octet', Message, Len, C};
dec_type_code(11, _, Message, Len, _, _, C) ->
{'tk_any', Message, Len, C};
dec_type_code(12, _, Message, Len, _, _, C) ->
{'tk_TypeCode', Message, Len, C};
dec_type_code(13, _, Message, Len, _, _, C) ->
{'tk_Principal', Message, Len, C};
dec_type_code(14, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg get the byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_objref', RepId, Name}, Message1, Len1, NewC};
dec_type_code(15, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg get the byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name, ElementList}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "",
[{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}},
{"element list",
{'tk_sequence', {'tk_struct', "","",
[{"member name", {'tk_string', 0}},
{"member type", 'tk_TypeCode'}]},
0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_struct', RepId, Name, ElementList}, Message1, Len1, NewC};
dec_type_code(16, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg get the byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name, DiscrTC, Default}, Rest2, RestLen2, NewC} =
dec_type({'tk_struct', "", "",
[{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}},
{"discriminant type", 'tk_TypeCode'},
{"default used", 'tk_long'}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{ElementList, <<>>, _RestLen3, NewC2} =
dec_type({'tk_sequence', {'tk_struct', "","",
[{"label value", DiscrTC},
{"member name", {'tk_string', 0}},
{"member type", 'tk_TypeCode'}]}, 0},
Version, Rest2, RestLen2, ByteOrder1, Buff, NewC),
NewElementList =
case check_enum(DiscrTC) of
true ->
lists:map(fun({L,N,T}) -> {atom_to_list(L),N,T} end, ElementList);
false ->
ElementList
end,
{{'tk_union', RepId, Name, DiscrTC, Default, NewElementList}, Message1, Len1, NewC2};
dec_type_code(17, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg get the byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name, ElementList}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "",
[{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}},
{"element list",
{'tk_sequence', {'tk_string', 0}, 0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_enum', RepId, Name, ElementList}, Message1, Len1, NewC};
dec_type_code(18, Version, Message, Len, ByteOrder, Buff, C) ->
{MaxLength, Message1, Len1, NewC} =
dec_type('tk_ulong', Version, Message, Len, ByteOrder, Buff, C),
{{'tk_string', MaxLength}, Message1, Len1, NewC};
dec_type_code(19, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg get the byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{ElemTC, MaxLength}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"element type", 'tk_TypeCode'},
{"max length", 'tk_ulong'}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_sequence', ElemTC, MaxLength}, Message1, Len1, NewC};
dec_type_code(20, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg get the byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{ElemTC, Length}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"element type", 'tk_TypeCode'},
{"length", 'tk_ulong'}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_array', ElemTC, Length}, Message1, Len1, NewC};
dec_type_code(21, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg ge a byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name, TC}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}},
{"TypeCode", 'tk_TypeCode'}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_alias', RepId, Name, TC}, Message1, Len1, NewC};
dec_type_code(22, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
%% Decode marshalled parameters, eg get the byteorder first
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name, ElementList}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "",
[{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}},
{"element list",
{'tk_sequence', {'tk_struct', "","",
[{"member name", {'tk_string', 0}},
{"member type", 'tk_TypeCode'}]},
0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_except', RepId, Name, ElementList}, Message1, Len1, NewC};
dec_type_code(27, Version, Message, Len, ByteOrder, Buff, C) ->
{MaxLength, Message1, Len1, NewC} =
dec_type('tk_ulong', Version, Message, Len, ByteOrder, Buff, C),
{{'tk_wstring', MaxLength}, Message1, Len1, NewC};
dec_type_code(28, Version, Message, Len, ByteOrder, Buff, C) ->
{Digits, Message1, Len1, C1} =
dec_type('tk_ushort', Version, Message, Len, ByteOrder, Buff, C),
{Scale, Message2, Len2, C2} =
dec_type('tk_short', Version, Message1, Len1, ByteOrder, Buff, C1),
{{'tk_fixed', Digits, Scale}, Message2, Len2, C2};
dec_type_code(29, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name, ValueModifier, TC, ElementList}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}},
{"ValueModifier", 'tk_short'},
{"TypeCode", 'tk_TypeCode'},
{"element list",
{'tk_sequence',
{'tk_struct', "","",
[{"member name", {'tk_string', 0}},
{"member type", 'tk_TypeCode'},
{"Visibility", 'tk_short'}]},
0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_value', RepId, Name, ValueModifier, TC, ElementList}, Message1, Len1, NewC};
dec_type_code(30, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name, TC}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}},
{"TypeCode", 'tk_TypeCode'}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_value_box', RepId, Name, TC}, Message1, Len1, NewC};
dec_type_code(31, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"repository ID", {'tk_string', 0}},
{"name", {'tk_string', 0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_native', RepId, Name}, Message1, Len1, NewC};
dec_type_code(32, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"RepositoryId", {'tk_string', 0}},
{"name", {'tk_string', 0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_abstract_interface', RepId, Name}, Message1, Len1, NewC};
dec_type_code(33, Version, Message, Len, ByteOrder, Buff, C) ->
{ComplexParams, Message1, Len1, Ex} = decode_complex_tc_parameters(Version, Message, Len, ByteOrder),
{ByteOrder1, Rest1} = dec_byte_order(ComplexParams),
{{RepId, Name}, <<>>, _Len2, NewC} =
dec_type({'tk_struct', "", "", [{"RepositoryId", {'tk_string', 0}},
{"name", {'tk_string', 0}}]},
Version, Rest1, 1, ByteOrder1, Buff, C+1+Ex),
{{'tk_local_interface', RepId, Name}, Message1, Len1, NewC};
dec_type_code(16#ffffffff, Version, Message, Len, ByteOrder, Buff, C) ->
{Indirection, Message1, Len1, NewC} =
dec_type('tk_long', Version, Message, Len, ByteOrder, Buff, C),
Position = C+Indirection,
case put(orber_indirection, Position) of
Position ->
%% {{'none', Indirection}, Message1, Len1, NewC};
%% Recursive TypeCode. Break the loop.
orber:dbg("[~p] cdr_decode:dec_type_code(~p); Recursive TC not supported.",
[?LINE,Position], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{completion_status=?COMPLETED_NO});
_ ->
<<_:Position/binary, SubBuff/binary>> = Buff,
{TC, _, _, _} = dec_type_code(Version, SubBuff, Position, ByteOrder, Buff, Position),
{TC, Message1, Len1, NewC}
end;
dec_type_code(Type, _, _, _, _, _, _) ->
orber:dbg("[~p] cdr_decode:dec_type_code(~p); No match.",
[?LINE, Type], ?DEBUG_LEVEL),
corba:raise(#'MARSHAL'{minor=(?ORBER_VMCID bor 8), completion_status=?COMPLETED_MAYBE}).
check_enum({'tk_enum', _, _, _}) ->
true;
check_enum(_) ->
false.
decode_complex_tc_parameters(_Version, Message, Len, ByteOrder) ->
{Rest, Len1, NewC} = dec_align(Message, Len, 4, 0),
{Size, Rest1} = cdrlib:dec_unsigned_long(ByteOrder, Rest),
<<OctetSeq:Size/binary, Rest2/binary>> = Rest1,
{OctetSeq, Rest2, Len1+4+Size, NewC+4}.
%%-----------------------------------------------------------------
%% Func: dec_align/3
%% Args:
%% R - The byte sequence that shall be aligned.
%% Len - The number of bytes read so far.
%% Alignment - The alignment as an integer (for example: 2,4,8).
%% Returns:
%% An aligned byte sequence.
%%-----------------------------------------------------------------
dec_align(R, Len, Alignment, C) ->
Rem = Len rem Alignment,
if Rem == 0 ->
{R, Len, C};
true ->
Diff = Alignment - Rem,
<<_:Diff/binary,Rest/binary>> = R,
{Rest, Len + Diff, C + Diff}
end.
%%---------------- EOF MODULE ----------------------------------------
